commit 922fcc803efa3fab751c90ab4d4467115c8ff9c9 Author: Markus Lude Date: Tue Oct 25 10:54:48 2016 +0200 import version 1.0, from Clifford Adams diff --git a/INSTALL b/INSTALL new file mode 100644 index 0000000..26c7036 --- /dev/null +++ b/INSTALL @@ -0,0 +1,122 @@ +Installation instructions for UseModWiki 1.0 +Last updated: September 11, 2003 +See the UPGRADE file for instructions to upgrade an existing wiki. + +------ +New Installations: + +The following instructions should work for most UNIX-based systems. +See http://www.usemod.com/cgi-bin/wiki.pl?UseModWiki/InstallWindows for +instructions if you are installing under Microsoft Windows. + +1. Copy the file "wiki.pl" to your cgi-bin directory. You can rename + the file to another name if you like. (Some servers may require + the name to end in ".pl" or ".cgi".) + +2. For some servers, you may need to change the permissions on the wiki.pl + script. (The command "chmod 755 wiki.pl" should be correct.) + +3. Create the wiki database directory. This directory must be writable + by the wiki CGI script. (You may need to use another chmod command.) + If the directory does not exist, the script will attempt to create it. + +4. If your installation of Perl is not located in /usr/bin/perl, you will + need to change the "/usr/bin/perl" text in the first line of wiki.pl. + (On UNIX-like systems this is usually unnecessary. For Windows, + "#!perl" (without the quotes) may also work.) + +5. Edit the "wiki.pl" file. The configuration section starts around + line 60. The main configuration variable is: + + $DataDir = "/tmp/mywikidb"; # Main page database + + ... which is the wiki database directory. The default directory is + in /tmp, which is not a good location for a long-term wiki. (Many + systems will erase the contents of /tmp when they crash or reboot.) + Change this directory to the one you created in step 3, using the + full path name, like "/home/domainname/www/wikidb". + +6. Most of the wiki's configuration variables can be stored and edited + outside the script. (You still need to edit the script to set the + $DataDir variable.) To do this, copy the "config" file to your wiki's + $DataDir directory and edit it. + + The advantage of editing the config file (rather than the script) is that + upgrades to future versions are much easier--you only need to make the + changes above rather than re-edit all of your local configuration. + + You will probably want to change the following configuration values: + + $CookieName = "Wiki"; # Name for this wiki (for multi-wiki sites) + + ... If your site uses multiple copies of UseModWiki, you must + make sure that each copy has a unique $CookieName. The + cookies store user-specific settings and preferences. + + $SiteName = "Wiki"; # Name of site (used for titles) + + ... This name is used in the title of every page. + + $HomePage = "HomePage"; # Home page (must be valid LinkPattern) + + ... This is the name of the wiki page users will go to when: + * The user clicks on the logo image, or + * The user does not specify a page in their URL. + + $LogoUrl = "/wiki.gif"; # URL for site logo ("" for no logo) + + ... This is the URL for the logo image. If it is "", the logo will + not be displayed. + +7. If you are installing the wiki on a web server using a non-standard + port number (like 8080), then you must also set $FullUrl to the + full path of your wiki, like: + + $FullUrl = "http://www.mydomain.com:8080/cgi-bin/wiki.pl"; + + If you are using a non-standard port and do not set $FullUrl, then + the wiki may not go to the right URL after editing a page. + + (If your site's URLs are like "http://www.mydomain.com/pagename" + (without a number like "8080"), then you should not need to + modify the $FullUrl setting.) + +8. If you wish to use the provided wiki.gif image, copy it to the top + directory of your www pages. (Or see step 6 to change the LogoUrl + variable.) + +9. (Optional) To use the supplied InterWiki site definitions, copy the + file "intermap" into the database directory (from step 3). + +10. Start your web browser, and go to the URL of the wiki.pl script. + You should be able to edit and add new pages. + +------ +Likely Problems: + +[Note that the path names (like /tmp/mydb/mywikidb) may be different + in your error messages.] + +1. The output message: + Could not go to or create /tmp/mydb/mywikidb: No such file or directory +...means that the database directory in step 5 above did not exist, + and the wiki script could not create the directory. + +2. The output message: + Could not go to or create /tmp/mydb/mywikidb: Permission denied +...means that the database directory exists, but it does not have the + proper permissions for the script to read it. + +3. If you see the message: + can't make /tmp/mydb/mywikidb/lock: Permission denied +...when saving a page, it means that the script could not write to + the database directory. + +4. If you can save your changes, but you do not see the changed page after + editing (or if you go to the wrong URL after editing), you may need to + set the FullUrl configuration variable. A sample setting for this + variable would be $FullUrl = "http://www.mysite.com/cgi-bin/mywiki.pl". + +5. If saving a page takes more than 20-30 seconds, it is possible that + there is a problem with the hostname lookup step. Try setting the + $UseLookup configuration variable to 0. diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..befaf30 --- /dev/null +++ b/LICENSE @@ -0,0 +1,367 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA +02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. 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To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. You may modify your copy or copies of the Program or any portion +of it, thus forming a work based on the Program, and copy and +distribute such modifications or work under the terms of Section 1 +above, provided that you also meet all of these conditions: + + a) You must cause the modified files to carry prominent notices + stating that you changed the files and the date of any change. + + b) You must cause any work that you distribute or publish, that in + whole or in part contains or is derived from the Program or any + part thereof, to be licensed as a whole at no charge to all third + parties under the terms of this License. + + c) If the modified program normally reads commands interactively + when run, you must cause it, when started running for such + interactive use in the most ordinary way, to print or display an + announcement including an appropriate copyright notice and a + notice that there is no warranty (or else, saying that you provide + a warranty) and that users may redistribute the program under + these conditions, and telling the user how to view a copy of this + License. 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The Free Software Foundation may publish revised and/or new +versions +of the General Public License from time to time. Such new versions will +be similar in spirit to the present version, but may differ in detail to +address new problems or concerns. + +Each version is given a distinguishing version number. If the Program +specifies a version number of this License which applies to it and "any +later version", you have the option of following the terms and +conditions +either of that version or of any later version published by the Free +Software Foundation. If the Program does not specify a version number +of +this License, you may choose any version ever published by the Free +Software +Foundation. + + 10. If you wish to incorporate parts of the Program into other free +programs whose distribution conditions are different, write to the +author +to ask for permission. For software which is copyrighted by the Free +Software Foundation, write to the Free Software Foundation; we sometimes +make exceptions for this. Our decision will be guided by the two goals +of preserving the free status of all derivatives of our free software +and +of promoting the sharing and reuse of software generally. + + NO WARRANTY + + 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO +WARRANTY +FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN +OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES +PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER +EXPRESSED +OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF +MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK +AS +TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE +PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, +REPAIR OR CORRECTION. + + 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN +WRITING +WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR +REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR +DAMAGES, +INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES +ARISING +OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT +LIMITED +TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY +YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY +OTHER +PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE +POSSIBILITY OF SUCH DAMAGES. + + END OF TERMS AND CONDITIONS + + How to Apply These Terms to Your New Programs + + If you develop a new program, and you want it to be of the greatest +possible use to the public, the best way to achieve this is to make it +free software which everyone can redistribute and change under these +terms. + + To do so, attach the following notices to the program. It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + + Copyright (C) 19yy + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) 19yy name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type +`show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the +appropriate +parts of the General Public License. Of course, the commands you use +may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James +Hacker. + + , 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program +into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with +the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. + diff --git a/README b/README new file mode 100644 index 0000000..69c0479 --- /dev/null +++ b/README @@ -0,0 +1,26 @@ +README for UseModWiki 1.0 +Last updated: August 1, 2003 + +Release notes: + +Visit http://www.usemod.com/cgi-bin/wiki.pl for documentation and official +announcements regarding UseModWiki. The current documentation is minimal, +but the developers and some users will try to answer any questions. + +Please send questions or comments to usemod@usemod.com. + +A mailing list for major UseModWiki announcements (releases and critical +bugs) is available. Send mail to usemod@usemod.com to join the list. + +------ +Security: + +Wiki administrators should be aware of the risks of enabling the HTML +or email options in UseModWiki. Permitting full HTML editing allows a +malicious user to cause the browsers of other users to execute +arbitrary Javascript, Java applets, or other possible sources of +security holes. The email option could be misused to send annoying +mail to third parties (since no validation is done on the email +addresses entered into the Preferences page). These options may be +useful for small trusted groups, but they are not advised for wikis +open to the general public. diff --git a/UPGRADE b/UPGRADE new file mode 100644 index 0000000..4f68a22 --- /dev/null +++ b/UPGRADE @@ -0,0 +1,100 @@ +Upgrade instructions for UseModWiki 1.0 +Last updated: September 11, 2003 +See the INSTALL file for new installations. + +Please email usemod@usemod.com with any questions, comments, or suggestions. + +------ +Upgrading from 0.90, 0.91, or 0.92: + +1. Make a backup of your current wiki script and your database directory + ($DataDir). + +2. Copy the wiki.pl file to your cgi-bin directory, overwriting your + old wiki script. You may need to change the permissions on the + new script file. + +3. Edit the wiki script in your cgi-bin directory, and change the line + reading: $DataDir = "/tmp/mywikidb"; # Main wiki directory + ...to point to your existing wiki database directory. + +4. If you are using the "config"-file method for your wiki settings, + you can stop here (if you accept the defaults for new settings). + If you want to change these settings, copy the appropriate lines from + the new settings below to your config file and change them there. + +5. If you did *not* use the config-file method for your settings, change + the settings in the new script to match your old script. + +Note that the default settings enable the "free-links" feature. If you +want to continue using a "traditional" wiki (that does not allow free-links), +you should change $FreeLinks to 0. + +------ +Upgrading from older versions (before 0.90) is possible, but requires +a conversion utility for the database. Contact usemod@usemod.com for +upgrade instructions. + +------ +# New configuration settings added after 0.92: +$InterWikiMoniker = ''; # InterWiki moniker for this wiki. (for RSS) +$SiteDescription = $SiteName; # Description of this wiki. (for RSS) +$RssLogoUrl = ''; # Optional image for RSS feed +$KeepSize = 0; # If non-zero, maximum size of keep file +$BGColor = 'white'; # Background color ('' to disable) +$DiffColor1 = '#ffffaf'; # Background color of old/deleted text +$DiffColor2 = '#cfffcf'; # Background color of new/added text +$FavIcon = ''; # URL of bookmark/favorites icon, or '' +$RssDays = 7; # Default number of days in RSS feed +$UserHeader = ''; # Optional HTML header additional content +$UserBody = ''; # Optional tag additional content +$EarlyRules = ''; # Local syntax rules for wiki->html (evaled) +$LateRules = ''; # Local syntax rules for wiki->html (evaled) +$StartUID = 1001; # Starting number for user IDs +$UploadDir = ''; # Full path (like /foo/www/uploads) for files +$UploadUrl = ''; # Full URL (like http://foo.com/uploads) +@ImageSites = qw(); # Url prefixes of good image sites: ()=all + +$DeletedPage = 'DeletedPage'; # 0 = disable, 'PageName' = tag to delete page +$ReplaceFile = 'ReplaceFile'; # 0 = disable, 'PageName' = indicator tag +@ReplaceableFiles = (); # List of allowed server files to replace +$TableSyntax = 1; # 1 = wiki syntax tables, 0 = no table syntax +$NewFS = 0; # 1 = new multibyte $FS, 0 = old $FS +$UseUpload = 0; # 1 = allow uploads, 0 = no uploads + +$MetaKeywords = 1; # 1 = Google-friendly, 0 = search-engine averse +$NamedAnchors = 1; # 0 = no anchors, 1 = enable anchors, + # 2 = enable but suppress display +$SlashLinks = 0; # 1 = use script/action links, 0 = script?action +$UpperFirst = 1; # 1 = free links start uppercase, 0 = no ucfirst +$AdminBar = 1; # 1 = admins see admin links, 0 = no admin bar +$RepInterMap = 0; # 1 = intermap is replacable, 0 = not replacable +$ConfirmDel = 1; # 1 = delete link confirm page, 0 = immediate delete +$MaskHosts = 0; # 1 = mask hosts/IPs, 0 = no masking +$LockCrash = 0; # 1 = crash if lock stuck, 0 = auto clear locks +$HistoryEdit = 0; # 1 = edit links on history page, 0 = no edit links +$OldThinLine = 0; # 1 = old ==== thick line, 0 = ------ for thick line +$NumberDates = 0; # 1 = 2003-6-17 dates, 0 = June 17, 2003 dates +$ParseParas = 0; # 1 = new paragraph markup, 0 = old markup +$AuthorFooter = 1; # 1 = show last author in footer, 0 = do not show +$AllUpload = 0; # 1 = anyone can upload, 0 = only editor/admins +$LimitFileUrl = 1; # 1 = limited use of file: URLs, 0 = no limits +$MaintTrimRc = 0; # 1 = maintain action trims RC, 0 = only maintainrc +$SearchButton = 0; # 1 = search button on page, 0 = old behavior +$EditNameLink = 0; # 1 = edit links use name (CSS), 0 = '?' links +$UseMetaWiki = 0; # 1 = add MetaWiki search links, 0 = no MW links +$BracketImg = 1; # 1 = [url url.gif] becomes image link, 0 = no img + +# Names of sites. (The first entry is used for the number link.) +@IsbnNames = ('bn.com', 'amazon.com', 'powells.com', 'search'); +# Full URL of each site before the ISBN +@IsbnPre = ('http://shop.barnesandnoble.com/bookSearch/isbnInquiry.asp?isbn=', + 'http://www.amazon.com/exec/obidos/ISBN=', + 'http://www.powells.com/cgi-bin/biblio?isbn=', + 'http://www.pricescan.com/books/BookDetail.asp?isbn='); +# Rest of URL of each site after the ISBN (usually '') +@IsbnPost = ('', '', '', ''); + +$EmailFile = "$DataDir/emails"; # Email notification lists +# End of new configuration settings +==== end of UPGRADE document ==== diff --git a/config b/config new file mode 100644 index 0000000..e82258a --- /dev/null +++ b/config @@ -0,0 +1,143 @@ +# == Configuration ======================================================= +# Original version from UseModWiki 1.0 + +$CookieName = "Wiki"; # Name for this wiki (for multi-wiki sites) +$SiteName = "Wiki"; # Name of site (used for titles) +$HomePage = "HomePage"; # Home page (change space to _) +$RCName = "RecentChanges"; # Name of changes page (change space to _) +$LogoUrl = "/wiki.gif"; # URL for site logo ("" for no logo) +$ENV{PATH} = "/usr/bin/"; # Path used to find "diff" +$ScriptTZ = ""; # Local time zone ("" means do not print) +$RcDefault = 30; # Default number of RecentChanges days +@RcDays = qw(1 3 7 30 90); # Days for links on RecentChanges +$KeepDays = 14; # Days to keep old revisions +$SiteBase = ""; # Full URL for header +$FullUrl = ""; # Set if the auto-detected URL is wrong +$RedirType = 1; # 1 = CGI.pm, 2 = script, 3 = no redirect +$AdminPass = ""; # Set to non-blank to enable password(s) +$EditPass = ""; # Like AdminPass, but for editing only +$StyleSheet = ""; # URL for CSS stylesheet (like "/wiki.css") +$NotFoundPg = ""; # Page for not-found links ("" for blank pg) +$EmailFrom = "Wiki"; # Text for "From: " field of email notes. +$SendMail = "/usr/sbin/sendmail"; # Full path to sendmail executable +$FooterNote = ""; # HTML for bottom of every page +$EditNote = ""; # HTML notice above buttons on edit page +$MaxPost = 1024 * 210; # Maximum 210K posts (about 200K for pages) +$NewText = ""; # New page text ("" for default message) +$HttpCharset = ""; # Charset for pages, like "iso-8859-2" +$UserGotoBar = ""; # HTML added to end of goto bar +$InterWikiMoniker = ''; # InterWiki moniker for this wiki. (for RSS) +$SiteDescription = $SiteName; # Description of this wiki. (for RSS) +$RssLogoUrl = ''; # Optional image for RSS feed +$EarlyRules = ''; # Local syntax rules for wiki->html (evaled) +$LateRules = ''; # Local syntax rules for wiki->html (evaled) +$KeepSize = 0; # If non-zero, maximum size of keep file +$BGColor = 'white'; # Background color ('' to disable) +$DiffColor1 = '#ffffaf'; # Background color of old/deleted text +$DiffColor2 = '#cfffcf'; # Background color of new/added text +$FavIcon = ''; # URL of bookmark/favorites icon, or '' +$RssDays = 7; # Default number of days in RSS feed +$UserHeader = ''; # Optional HTML header additional content +$UserBody = ''; # Optional tag additional content +$StartUID = 1001; # Starting number for user IDs +$UploadDir = ''; # Full path (like /foo/www/uploads) for files +$UploadUrl = ''; # Full URL (like http://foo.com/uploads) +@ImageSites = qw(); # Url prefixes of good image sites: ()=all + +# Major options: +$UseSubpage = 1; # 1 = use subpages, 0 = do not use subpages +$UseCache = 0; # 1 = cache HTML pages, 0 = generate every page +$EditAllowed = 1; # 1 = editing allowed, 0 = read-only +$RawHtml = 0; # 1 = allow tag, 0 = no raw HTML in pages +$HtmlTags = 0; # 1 = "unsafe" HTML tags, 0 = only minimal tags +$UseDiff = 1; # 1 = use diff features, 0 = do not use diff +$FreeLinks = 1; # 1 = use [[word]] links, 0 = LinkPattern only +$WikiLinks = 1; # 1 = use LinkPattern, 0 = use [[word]] only +$AdminDelete = 1; # 1 = Admin only deletes, 0 = Editor can delete +$RunCGI = 1; # 1 = Run script as CGI, 0 = Load but do not run +$EmailNotify = 0; # 1 = use email notices, 0 = no email on changes +$EmbedWiki = 0; # 1 = no headers/footers, 0 = normal wiki pages +$DeletedPage = 'DeletedPage'; # 0 = disable, 'PageName' = tag to delete page +$ReplaceFile = 'ReplaceFile'; # 0 = disable, 'PageName' = indicator tag +@ReplaceableFiles = (); # List of allowed server files to replace +$TableSyntax = 1; # 1 = wiki syntax tables, 0 = no table syntax +$NewFS = 0; # 1 = new multibyte $FS, 0 = old $FS +$UseUpload = 0; # 1 = allow uploads, 0 = no uploads + +# Minor options: +$LogoLeft = 0; # 1 = logo on left, 0 = logo on right +$RecentTop = 1; # 1 = recent on top, 0 = recent on bottom +$UseDiffLog = 1; # 1 = save diffs to log, 0 = do not save diffs +$KeepMajor = 1; # 1 = keep major rev, 0 = expire all revisions +$KeepAuthor = 1; # 1 = keep author rev, 0 = expire all revisions +$ShowEdits = 0; # 1 = show minor edits, 0 = hide edits by default +$HtmlLinks = 0; # 1 = allow A HREF links, 0 = no raw HTML links +$SimpleLinks = 0; # 1 = only letters, 0 = allow _ and numbers +$NonEnglish = 0; # 1 = extra link chars, 0 = only A-Za-z chars +$ThinLine = 0; # 1 = fancy
tags, 0 = classic wiki
+$BracketText = 1; # 1 = allow [URL text], 0 = no link descriptions +$UseAmPm = 1; # 1 = use am/pm in times, 0 = use 24-hour times +$UseIndex = 0; # 1 = use index file, 0 = slow/reliable method +$UseHeadings = 1; # 1 = allow = h1 text =, 0 = no header formatting +$NetworkFile = 1; # 1 = allow remote file:, 0 = no file:// links +$BracketWiki = 0; # 1 = [WikiLnk txt] link, 0 = no local descriptions +$UseLookup = 1; # 1 = lookup host names, 0 = skip lookup (IP only) +$FreeUpper = 1; # 1 = force upper case, 0 = do not force case +$FastGlob = 1; # 1 = new faster code, 0 = old compatible code +$MetaKeywords = 1; # 1 = Google-friendly, 0 = search-engine averse +$NamedAnchors = 1; # 0 = no anchors, 1 = enable anchors, + # 2 = enable but suppress display +$SlashLinks = 0; # 1 = use script/action links, 0 = script?action +$UpperFirst = 1; # 1 = free links start uppercase, 0 = no ucfirst +$AdminBar = 1; # 1 = admins see admin links, 0 = no admin bar +$RepInterMap = 0; # 1 = intermap is replacable, 0 = not replacable +$ConfirmDel = 1; # 1 = delete link confirm page, 0 = immediate delete +$MaskHosts = 0; # 1 = mask hosts/IPs, 0 = no masking +$LockCrash = 0; # 1 = crash if lock stuck, 0 = auto clear locks +$HistoryEdit = 0; # 1 = edit links on history page, 0 = no edit links +$OldThinLine = 0; # 1 = old ==== thick line, 0 = ------ for thick line +$NumberDates = 0; # 1 = 2003-6-17 dates, 0 = June 17, 2003 dates +$ParseParas = 0; # 1 = new paragraph markup, 0 = old markup +$AuthorFooter = 1; # 1 = show last author in footer, 0 = do not show +$AllUpload = 0; # 1 = anyone can upload, 0 = only editor/admins +$LimitFileUrl = 1; # 1 = limited use of file: URLs, 0 = no limits +$MaintTrimRc = 0; # 1 = maintain action trims RC, 0 = only maintainrc +$SearchButton = 0; # 1 = search button on page, 0 = old behavior +$EditNameLink = 0; # 1 = edit links use name (CSS), 0 = '?' links +$UseMetaWiki = 0; # 1 = add MetaWiki search links, 0 = no MW links +$BracketImg = 1; # 1 = [url url.gif] becomes image link, 0 = no img + +# Names of sites. (The first entry is used for the number link.) +@IsbnNames = ('bn.com', 'amazon.com', 'search'); +# Full URL of each site before the ISBN +@IsbnPre = ('http://shop.barnesandnoble.com/bookSearch/isbnInquiry.asp?isbn=', + 'http://www.amazon.com/exec/obidos/ISBN=', + 'http://www.pricescan.com/books/BookDetail.asp?isbn='); +# Rest of URL of each site after the ISBN (usually '') +@IsbnPost = ('', '', ''); + +# HTML tag lists, enabled if $HtmlTags is set. +# Scripting is currently possible with these tags, +# so they are *not* particularly "safe". +# Tags that must be in ... pairs: +@HtmlPairs = qw(b i u font big small sub sup h1 h2 h3 h4 h5 h6 cite code + em s strike strong tt var div center blockquote ol ul dl table caption); +# Single tags (that do not require a closing /tag) +@HtmlSingle = qw(br p hr li dt dd tr td th); +@HtmlPairs = (@HtmlPairs, @HtmlSingle); # All singles can also be pairs + +# == You should not have to change anything below this line. ============= +$IndentLimit = 20; # Maximum depth of nested lists +$PageDir = "$DataDir/page"; # Stores page data +$HtmlDir = "$DataDir/html"; # Stores HTML versions +$UserDir = "$DataDir/user"; # Stores user data +$KeepDir = "$DataDir/keep"; # Stores kept (old) page data +$TempDir = "$DataDir/temp"; # Temporary files and locks +$LockDir = "$TempDir/lock"; # DB is locked if this exists +$InterFile = "$DataDir/intermap"; # Interwiki site->url map +$RcFile = "$DataDir/rclog"; # New RecentChanges logfile +$RcOldFile = "$DataDir/oldrclog"; # Old RecentChanges logfile +$IndexFile = "$DataDir/pageidx"; # List of all pages +$EmailFile = "$DataDir/emails"; # Email notification lists + +# == End of Configuration ================================================= diff --git a/intermap b/intermap new file mode 100644 index 0000000..9cead67 --- /dev/null +++ b/intermap @@ -0,0 +1,10 @@ +Acronym http://www.acronymfinder.com/af-query.asp?String=exact&Acronym= +Cache http://www.google.com/search?q=cache: +Dictionary http://www.dict.org/bin/Dict?Database=*&Form=Dict1&Strategy=*&Query= +Google http://www.google.com/search?q= +GoogleGroups http://groups.google.com/groups?q= +IMDB http://us.imdb.com/Title? +JargonFile http://sunir.org/apps/meta.pl?wiki=JargonFile&redirect= +UseMod http://www.usemod.com/cgi-bin/wiki.pl? +Wiki http://c2.com/cgi/wiki? +WikiPedia http://www.wikipedia.org/wiki/ diff --git a/misc/trans.pl b/misc/trans.pl new file mode 100644 index 0000000..f710ae6 --- /dev/null +++ b/misc/trans.pl @@ -0,0 +1,514 @@ +%Translate = split('\n',< trans.pl +# ... creates a new/empty translation table from wiki.pl +# umtrans.pl wiki.pl trans.pl > newtrans.pl +# ... creates a new translation table using wiki.pl and an old table + +if ((@ARGV < 1) || (@ARGV > 2)) { + # Usage later + die("Wrong number of arguments"); +} + +%Translate = (); +if (@ARGV == 2) { + do (pop(@ARGV)); # Evaluate second argument and remove it +} + +%seen = (); + +sub trans { + my ($string) = @_; + my ($result); + + $result = ''; +# Uncomment the next line to create a test translation table +# $result = 'X_' . $string . '_W'; + + $result = $Translate{$string} if (defined($Translate{$string})); + + return ' ' if ($seen{$string}); + $seen{$string} = 1; + print $string . "\n" . $result . "\n"; + return ' '; +} + +print '%Translate = split(\'\n\',<) { + s/T\(\'([^']+)/&trans($1)/ge; + s/Tss?\(\'([^']+)/&trans($1)/ge; + s/T\(\"([^"]+)/&trans($1)/ge; + s/Tss?\(\"([^"]+)/&trans($1)/ge; +} + +print "END_OF_TRANSLATION\n"; diff --git a/wiki.css b/wiki.css new file mode 100644 index 0000000..af8589e --- /dev/null +++ b/wiki.css @@ -0,0 +1,49 @@ +/* The following is a sample CSS file for UseModWiki 1.0. + It is not pretty, but it demonstrates all of the new DIVs and + tag classes. */ +DIV.wikitext { + background-color : #ccc; +} +DIV.wikipreview { + background-color : Lightblue; +} +DIV.wikiheader { + background-color : Lightpink; +} +DIV.wikirc { + background-color : Lightblue; +} +DIV.wikifooter { + background-color : Lightpink; +} +DIV.wikipref { + background-color : orange; +} +HR.wikilinefooter { + height : 3px; +} +HR.wikilineheader { + height : 2px; + border : double; +} +HR.wikiline { + height : 2px; + color : blue; +} +HR.wikilinepref { + color : red; + height : 5px; +} +A.wikipagelink { + background-color : orange; +} +A.wikipageedit { + color : red; + border-bottom : 1px dotted #a00 +} +TABLE.wikidiffold { + background-color : orange; +} +TABLE.wikidiffnew { + background-color : Lightgreen; +} diff --git a/wiki.gif b/wiki.gif new file mode 100644 index 0000000..e33d33f Binary files /dev/null and b/wiki.gif differ diff --git a/wiki.pl b/wiki.pl new file mode 100755 index 0000000..ecb43b2 --- /dev/null +++ b/wiki.pl @@ -0,0 +1,5096 @@ +#!/usr/bin/perl +# UseModWiki version 1.0 (September 12, 2003) +# Copyright (C) 2000-2003 Clifford A. Adams +# Copyright (C) 2002-2003 Sunir Shah +# Based on the GPLed AtisWiki 0.3 (C) 1998 Markus Denker +# +# ...which was based on +# the LGPLed CVWiki CVS-patches (C) 1997 Peter Merel +# and The Original WikiWikiWeb (C) Ward Cunningham +# (code reused with permission) +# Email and ThinLine options by Jim Mahoney +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the +# Free Software Foundation, Inc. +# 59 Temple Place, Suite 330 +# Boston, MA 02111-1307 USA + +package UseModWiki; +use strict; +local $| = 1; # Do not buffer output (localized for mod_perl) + +# Configuration/constant variables: +use vars qw(@RcDays @HtmlPairs @HtmlSingle + $TempDir $LockDir $DataDir $HtmlDir $UserDir $KeepDir $PageDir + $InterFile $RcFile $RcOldFile $IndexFile $FullUrl $SiteName $HomePage + $LogoUrl $RcDefault $IndentLimit $RecentTop $EditAllowed $UseDiff + $UseSubpage $UseCache $RawHtml $SimpleLinks $NonEnglish $LogoLeft + $KeepDays $HtmlTags $HtmlLinks $UseDiffLog $KeepMajor $KeepAuthor + $FreeUpper $EmailNotify $SendMail $EmailFrom $FastGlob $EmbedWiki + $ScriptTZ $BracketText $UseAmPm $UseConfig $UseIndex $UseLookup + $RedirType $AdminPass $EditPass $UseHeadings $NetworkFile $BracketWiki + $FreeLinks $WikiLinks $AdminDelete $FreeLinkPattern $RCName $RunCGI + $ShowEdits $ThinLine $LinkPattern $InterLinkPattern $InterSitePattern + $UrlProtocols $UrlPattern $ImageExtensions $RFCPattern $ISBNPattern + $FS $FS1 $FS2 $FS3 $CookieName $SiteBase $StyleSheet $NotFoundPg + $FooterNote $EditNote $MaxPost $NewText $NotifyDefault $HttpCharset + $UserGotoBar $DeletedPage $ReplaceFile @ReplaceableFiles $TableSyntax + $MetaKeywords $NamedAnchors $InterWikiMoniker $SiteDescription $RssLogoUrl + $NumberDates $EarlyRules $LateRules $NewFS $KeepSize $SlashLinks $BGColor + $UpperFirst $AdminBar $RepInterMap $DiffColor1 $DiffColor2 $ConfirmDel + $MaskHosts $LockCrash $ConfigFile $HistoryEdit $OldThinLine + @IsbnNames @IsbnPre @IsbnPost $EmailFile $FavIcon $RssDays $UserHeader + $UserBody $StartUID $ParseParas $AuthorFooter $UseUpload $AllUpload + $UploadDir $UploadUrl $LimitFileUrl $MaintTrimRc $SearchButton + $EditNameLink $UseMetaWiki @ImageSites $BracketImg ); +# Note: $NotifyDefault is kept because it was a config variable in 0.90 +# Other global variables: +use vars qw(%Page %Section %Text %InterSite %SaveUrl %SaveNumUrl + %KeptRevisions %UserCookie %SetCookie %UserData %IndexHash %Translate + %LinkIndex $InterSiteInit $SaveUrlIndex $SaveNumUrlIndex $MainPage + $OpenPageName @KeptList @IndexList $IndexInit $TableMode + $q $Now $UserID $TimeZoneOffset $ScriptName $BrowseCode $OtherCode + $AnchoredLinkPattern @HeadingNumbers $TableOfContents $QuotedFullUrl + $ConfigError $UploadPattern ); + +# == Configuration ===================================================== +$DataDir = "/tmp/mywikidb"; # Main wiki directory +$UseConfig = 1; # 1 = use config file, 0 = do not look for config +$ConfigFile = "$DataDir/config"; # Configuration file + +# Default configuration (used if UseConfig is 0) +$CookieName = "Wiki"; # Name for this wiki (for multi-wiki sites) +$SiteName = "Wiki"; # Name of site (used for titles) +$HomePage = "HomePage"; # Home page (change space to _) +$RCName = "RecentChanges"; # Name of changes page (change space to _) +$LogoUrl = "/wiki.gif"; # URL for site logo ("" for no logo) +$ENV{PATH} = "/usr/bin/"; # Path used to find "diff" +$ScriptTZ = ""; # Local time zone ("" means do not print) +$RcDefault = 30; # Default number of RecentChanges days +@RcDays = qw(1 3 7 30 90); # Days for links on RecentChanges +$KeepDays = 14; # Days to keep old revisions +$SiteBase = ""; # Full URL for header +$FullUrl = ""; # Set if the auto-detected URL is wrong +$RedirType = 1; # 1 = CGI.pm, 2 = script, 3 = no redirect +$AdminPass = ""; # Set to non-blank to enable password(s) +$EditPass = ""; # Like AdminPass, but for editing only +$StyleSheet = ""; # URL for CSS stylesheet (like "/wiki.css") +$NotFoundPg = ""; # Page for not-found links ("" for blank pg) +$EmailFrom = "Wiki"; # Text for "From: " field of email notes. +$SendMail = "/usr/sbin/sendmail"; # Full path to sendmail executable +$FooterNote = ""; # HTML for bottom of every page +$EditNote = ""; # HTML notice above buttons on edit page +$MaxPost = 1024 * 210; # Maximum 210K posts (about 200K for pages) +$NewText = ""; # New page text ("" for default message) +$HttpCharset = ""; # Charset for pages, like "iso-8859-2" +$UserGotoBar = ""; # HTML added to end of goto bar +$InterWikiMoniker = ''; # InterWiki moniker for this wiki. (for RSS) +$SiteDescription = $SiteName; # Description of this wiki. (for RSS) +$RssLogoUrl = ''; # Optional image for RSS feed +$EarlyRules = ''; # Local syntax rules for wiki->html (evaled) +$LateRules = ''; # Local syntax rules for wiki->html (evaled) +$KeepSize = 0; # If non-zero, maximum size of keep file +$BGColor = 'white'; # Background color ('' to disable) +$DiffColor1 = '#ffffaf'; # Background color of old/deleted text +$DiffColor2 = '#cfffcf'; # Background color of new/added text +$FavIcon = ''; # URL of bookmark/favorites icon, or '' +$RssDays = 7; # Default number of days in RSS feed +$UserHeader = ''; # Optional HTML header additional content +$UserBody = ''; # Optional tag additional content +$StartUID = 1001; # Starting number for user IDs +$UploadDir = ''; # Full path (like /foo/www/uploads) for files +$UploadUrl = ''; # Full URL (like http://foo.com/uploads) +@ImageSites = qw(); # Url prefixes of good image sites: ()=all + +# Major options: +$UseSubpage = 1; # 1 = use subpages, 0 = do not use subpages +$UseCache = 0; # 1 = cache HTML pages, 0 = generate every page +$EditAllowed = 1; # 1 = editing allowed, 0 = read-only +$RawHtml = 0; # 1 = allow tag, 0 = no raw HTML in pages +$HtmlTags = 0; # 1 = "unsafe" HTML tags, 0 = only minimal tags +$UseDiff = 1; # 1 = use diff features, 0 = do not use diff +$FreeLinks = 1; # 1 = use [[word]] links, 0 = LinkPattern only +$WikiLinks = 1; # 1 = use LinkPattern, 0 = use [[word]] only +$AdminDelete = 1; # 1 = Admin only deletes, 0 = Editor can delete +$RunCGI = 1; # 1 = Run script as CGI, 0 = Load but do not run +$EmailNotify = 0; # 1 = use email notices, 0 = no email on changes +$EmbedWiki = 0; # 1 = no headers/footers, 0 = normal wiki pages +$DeletedPage = 'DeletedPage'; # 0 = disable, 'PageName' = tag to delete page +$ReplaceFile = 'ReplaceFile'; # 0 = disable, 'PageName' = indicator tag +@ReplaceableFiles = (); # List of allowed server files to replace +$TableSyntax = 1; # 1 = wiki syntax tables, 0 = no table syntax +$NewFS = 0; # 1 = new multibyte $FS, 0 = old $FS +$UseUpload = 0; # 1 = allow uploads, 0 = no uploads + +# Minor options: +$LogoLeft = 0; # 1 = logo on left, 0 = logo on right +$RecentTop = 1; # 1 = recent on top, 0 = recent on bottom +$UseDiffLog = 1; # 1 = save diffs to log, 0 = do not save diffs +$KeepMajor = 1; # 1 = keep major rev, 0 = expire all revisions +$KeepAuthor = 1; # 1 = keep author rev, 0 = expire all revisions +$ShowEdits = 0; # 1 = show minor edits, 0 = hide edits by default +$HtmlLinks = 0; # 1 = allow A HREF links, 0 = no raw HTML links +$SimpleLinks = 0; # 1 = only letters, 0 = allow _ and numbers +$NonEnglish = 0; # 1 = extra link chars, 0 = only A-Za-z chars +$ThinLine = 0; # 1 = fancy
tags, 0 = classic wiki
+$BracketText = 1; # 1 = allow [URL text], 0 = no link descriptions +$UseAmPm = 1; # 1 = use am/pm in times, 0 = use 24-hour times +$UseIndex = 0; # 1 = use index file, 0 = slow/reliable method +$UseHeadings = 1; # 1 = allow = h1 text =, 0 = no header formatting +$NetworkFile = 1; # 1 = allow remote file:, 0 = no file:// links +$BracketWiki = 0; # 1 = [WikiLnk txt] link, 0 = no local descriptions +$UseLookup = 1; # 1 = lookup host names, 0 = skip lookup (IP only) +$FreeUpper = 1; # 1 = force upper case, 0 = do not force case +$FastGlob = 1; # 1 = new faster code, 0 = old compatible code +$MetaKeywords = 1; # 1 = Google-friendly, 0 = search-engine averse +$NamedAnchors = 1; # 0 = no anchors, 1 = enable anchors, + # 2 = enable but suppress display +$SlashLinks = 0; # 1 = use script/action links, 0 = script?action +$UpperFirst = 1; # 1 = free links start uppercase, 0 = no ucfirst +$AdminBar = 1; # 1 = admins see admin links, 0 = no admin bar +$RepInterMap = 0; # 1 = intermap is replacable, 0 = not replacable +$ConfirmDel = 1; # 1 = delete link confirm page, 0 = immediate delete +$MaskHosts = 0; # 1 = mask hosts/IPs, 0 = no masking +$LockCrash = 0; # 1 = crash if lock stuck, 0 = auto clear locks +$HistoryEdit = 0; # 1 = edit links on history page, 0 = no edit links +$OldThinLine = 0; # 1 = old ==== thick line, 0 = ------ for thick line +$NumberDates = 0; # 1 = 2003-6-17 dates, 0 = June 17, 2003 dates +$ParseParas = 0; # 1 = new paragraph markup, 0 = old markup +$AuthorFooter = 1; # 1 = show last author in footer, 0 = do not show +$AllUpload = 0; # 1 = anyone can upload, 0 = only editor/admins +$LimitFileUrl = 1; # 1 = limited use of file: URLs, 0 = no limits +$MaintTrimRc = 0; # 1 = maintain action trims RC, 0 = only maintainrc +$SearchButton = 0; # 1 = search button on page, 0 = old behavior +$EditNameLink = 0; # 1 = edit links use name (CSS), 0 = '?' links +$UseMetaWiki = 0; # 1 = add MetaWiki search links, 0 = no MW links +$BracketImg = 1; # 1 = [url url.gif] becomes image link, 0 = no img + +# Names of sites. (The first entry is used for the number link.) +@IsbnNames = ('bn.com', 'amazon.com', 'search'); +# Full URL of each site before the ISBN +@IsbnPre = ('http://shop.barnesandnoble.com/bookSearch/isbnInquiry.asp?isbn=', + 'http://www.amazon.com/exec/obidos/ISBN=', + 'http://www.pricescan.com/books/BookDetail.asp?isbn='); +# Rest of URL of each site after the ISBN (usually '') +@IsbnPost = ('', '', ''); + +# HTML tag lists, enabled if $HtmlTags is set. +# Scripting is currently possible with these tags, +# so they are *not* particularly "safe". +# Tags that must be in ... pairs: +@HtmlPairs = qw(b i u font big small sub sup h1 h2 h3 h4 h5 h6 cite code + em s strike strong tt var div center blockquote ol ul dl table caption); +# Single tags (that do not require a closing /tag) +@HtmlSingle = qw(br p hr li dt dd tr td th); +@HtmlPairs = (@HtmlPairs, @HtmlSingle); # All singles can also be pairs + +# == You should not have to change anything below this line. ============= +$IndentLimit = 20; # Maximum depth of nested lists +$PageDir = "$DataDir/page"; # Stores page data +$HtmlDir = "$DataDir/html"; # Stores HTML versions +$UserDir = "$DataDir/user"; # Stores user data +$KeepDir = "$DataDir/keep"; # Stores kept (old) page data +$TempDir = "$DataDir/temp"; # Temporary files and locks +$LockDir = "$TempDir/lock"; # DB is locked if this exists +$InterFile = "$DataDir/intermap"; # Interwiki site->url map +$RcFile = "$DataDir/rclog"; # New RecentChanges logfile +$RcOldFile = "$DataDir/oldrclog"; # Old RecentChanges logfile +$IndexFile = "$DataDir/pageidx"; # List of all pages +$EmailFile = "$DataDir/emails"; # Email notification lists + +if ($RepInterMap) { + push @ReplaceableFiles, $InterFile; +} + +# The "main" program, called at the end of this script file. +sub DoWikiRequest { + if ($UseConfig && (-f $ConfigFile)) { + $ConfigError = ''; + if (!do $ConfigFile) { # Some error occurred + $ConfigError = $@; + if ($ConfigError eq '') { + # Unfortunately, if the last expr returns 0, one will get a false + # error above. To remain compatible with existing installs the + # wiki must not report an error unless there is error text in $@. + # (Errors in "use strict" may not have error text.) + # Uncomment the line below if you want to catch use strict errors. +# $ConfigError = T('Unknown Error (no error text)'); + } + } + } + &InitLinkPatterns(); + if (!&DoCacheBrowse()) { + eval $BrowseCode; + &InitRequest() or return; + if (!&DoBrowseRequest()) { + eval $OtherCode; + &DoOtherRequest(); + } + } +} + +# == Common and cache-browsing code ==================================== +sub InitLinkPatterns { + my ($UpperLetter, $LowerLetter, $AnyLetter, $LpA, $LpB, $QDelim); + + # Field separators are used in the URL-style patterns below. + if ($NewFS) { + $FS = "\x1e\xff\xfe\x1e"; # An unlikely sequence for any charset + } else { + $FS = "\xb3"; # The FS character is a superscript "3" + } + $FS1 = $FS . "1"; # The FS values are used to separate fields + $FS2 = $FS . "2"; # in stored hashtables and other data structures. + $FS3 = $FS . "3"; # The FS character is not allowed in user data. + $UpperLetter = "[A-Z"; + $LowerLetter = "[a-z"; + $AnyLetter = "[A-Za-z"; + if ($NonEnglish) { + $UpperLetter .= "\xc0-\xde"; + $LowerLetter .= "\xdf-\xff"; + if ($NewFS) { + $AnyLetter .= "\x80-\xff"; + } else { + $AnyLetter .= "\xc0-\xff"; + } + } + if (!$SimpleLinks) { + $AnyLetter .= "_0-9"; + } + $UpperLetter .= "]"; $LowerLetter .= "]"; $AnyLetter .= "]"; + # Main link pattern: lowercase between uppercase, then anything + $LpA = $UpperLetter . "+" . $LowerLetter . "+" . $UpperLetter + . $AnyLetter . "*"; + # Optional subpage link pattern: uppercase, lowercase, then anything + $LpB = $UpperLetter . "+" . $LowerLetter . "+" . $AnyLetter . "*"; + if ($UseSubpage) { + # Loose pattern: If subpage is used, subpage may be simple name + $LinkPattern = "((?:(?:$LpA)?\\/$LpB)|$LpA)"; + # Strict pattern: both sides must be the main LinkPattern + # $LinkPattern = "((?:(?:$LpA)?\\/)?$LpA)"; + } else { + $LinkPattern = "($LpA)"; + } + $QDelim = '(?:"")?'; # Optional quote delimiter (not in output) + $AnchoredLinkPattern = $LinkPattern . '#(\\w+)' . $QDelim if $NamedAnchors; + $LinkPattern .= $QDelim; + # Inter-site convention: sites must start with uppercase letter + # (Uppercase letter avoids confusion with URLs) + $InterSitePattern = $UpperLetter . $AnyLetter . "+"; + $InterLinkPattern = "((?:$InterSitePattern:[^\\]\\s\"<>$FS]+)$QDelim)"; + if ($FreeLinks) { + # Note: the - character must be first in $AnyLetter definition + if ($NonEnglish) { + if ($NewFS) { + $AnyLetter = "[-,.()' _0-9A-Za-z\x80-\xff]"; + } else { + $AnyLetter = "[-,.()' _0-9A-Za-z\xc0-\xff]"; + } + } else { + $AnyLetter = "[-,.()' _0-9A-Za-z]"; + } + } + $FreeLinkPattern = "($AnyLetter+)"; + if ($UseSubpage) { + $FreeLinkPattern = "((?:(?:$AnyLetter+)?\\/)?$AnyLetter+)"; + } + $FreeLinkPattern .= $QDelim; + # Url-style links are delimited by one of: + # 1. Whitespace (kept in output) + # 2. Left or right angle-bracket (< or >) (kept in output) + # 3. Right square-bracket (]) (kept in output) + # 4. A single double-quote (") (kept in output) + # 5. A $FS (field separator) character (kept in output) + # 6. A double double-quote ("") (removed from output) + $UrlProtocols = "http|https|ftp|afs|news|nntp|mid|cid|mailto|wais|" + . "prospero|telnet|gopher"; + $UrlProtocols .= '|file' if ($NetworkFile || !$LimitFileUrl); + $UrlPattern = "((?:(?:$UrlProtocols):[^\\]\\s\"<>$FS]+)$QDelim)"; + $ImageExtensions = "(gif|jpg|png|bmp|jpeg)"; + $RFCPattern = "RFC\\s?(\\d+)"; + $ISBNPattern = "ISBN:?([0-9- xX]{10,})"; + $UploadPattern = "upload:([^\\]\\s\"<>$FS]+)$QDelim"; +} + +# Simple HTML cache +sub DoCacheBrowse { + my ($query, $idFile, $text); + + return 0 if (!$UseCache); + $query = $ENV{'QUERY_STRING'}; + if (($query eq "") && ($ENV{'REQUEST_METHOD'} eq "GET")) { + $query = $HomePage; # Allow caching of home page. + } + if (!($query =~ /^$LinkPattern$/)) { + if (!($FreeLinks && ($query =~ /^$FreeLinkPattern$/))) { + return 0; # Only use cache for simple links + } + } + $idFile = &GetHtmlCacheFile($query); + if (-f $idFile) { + local $/ = undef; # Read complete files + open(INFILE, "<$idFile") or return 0; + $text = ; + close INFILE; + print $text; + return 1; + } + return 0; +} + +sub GetHtmlCacheFile { + my ($id) = @_; + + return $HtmlDir . "/" . &GetPageDirectory($id) . "/$id.htm"; +} + +sub GetPageDirectory { + my ($id) = @_; + + if ($id =~ /^([a-zA-Z])/) { + return uc($1); + } + return "other"; +} + +sub T { + my ($text) = @_; + + if (defined($Translate{$text}) && ($Translate{$text} ne '')) { + return $Translate{$text}; + } + return $text; +} + +sub Ts { + my ($text, $string) = @_; + + $text = T($text); + $text =~ s/\%s/$string/; + return $text; +} + +sub Tss { + my $text = @_[0]; + + $text = T($text); + $text =~ s/\%([1-9])/$_[$1]/ge; + return $text; +} + +# == Normal page-browsing and RecentChanges code ======================= +$BrowseCode = ""; # Comment next line to always compile (slower) +#$BrowseCode = <<'#END_OF_BROWSE_CODE'; +use CGI; +use CGI::Carp qw(fatalsToBrowser); + +sub InitRequest { + my @ScriptPath = split('/', "$ENV{SCRIPT_NAME}"); + + $CGI::POST_MAX = $MaxPost; + if ($UseUpload) { + $CGI::DISABLE_UPLOADS = 0; # allow uploads + } else { + $CGI::DISABLE_UPLOADS = 1; # no uploads + } + $q = new CGI; + # Fix some issues with editing UTF8 pages (if charset specified) + if ($HttpCharset ne '') { + $q->charset($HttpCharset); + } + $Now = time; # Reset in case script is persistent + $ScriptName = pop(@ScriptPath); # Name used in links + $IndexInit = 0; # Must be reset for each request + $InterSiteInit = 0; + %InterSite = (); + $MainPage = "."; # For subpages only, the name of the top-level page + $OpenPageName = ""; # Currently open page + &CreateDir($DataDir); # Create directory if it doesn't exist + if (!-d $DataDir) { + &ReportError(Ts('Could not create %s', $DataDir) . ": $!"); + return 0; + } + &InitCookie(); # Reads in user data + return 1; +} + +sub InitCookie { + %SetCookie = (); + $TimeZoneOffset = 0; + undef $q->{'.cookies'}; # Clear cache if it exists (for SpeedyCGI) + %UserData = (); # Fix for persistent environments. + %UserCookie = $q->cookie($CookieName); + $UserID = $UserCookie{'id'}; + $UserID =~ s/\D//g; # Numeric only + if ($UserID < 200) { + $UserID = 111; + } else { + &LoadUserData($UserID); + } + if ($UserID > 199) { + if (($UserData{'id'} != $UserCookie{'id'}) || + ($UserData{'randkey'} != $UserCookie{'randkey'})) { + $UserID = 113; + %UserData = (); # Invalid. Consider warning message. + } + } + if ($UserData{'tzoffset'} != 0) { + $TimeZoneOffset = $UserData{'tzoffset'} * (60 * 60); + } +} + +sub DoBrowseRequest { + my ($id, $action, $text); + + if (!$q->param) { # No parameter + &BrowsePage($HomePage); + return 1; + } + $id = &GetParam('keywords', ''); + if ($id) { # Just script?PageName + if ($FreeLinks && (!-f &GetPageFile($id))) { + $id = &FreeToNormal($id); + } + if (($NotFoundPg ne '') && (!-f &GetPageFile($id))) { + $id = $NotFoundPg; + } + &BrowsePage($id) if &ValidIdOrDie($id); + return 1; + } + $action = lc(&GetParam('action', '')); + $id = &GetParam('id', ''); + if ($action eq 'browse') { + if ($FreeLinks && (!-f &GetPageFile($id))) { + $id = &FreeToNormal($id); + } + if (($NotFoundPg ne '') && (!-f &GetPageFile($id))) { + $id = $NotFoundPg; + } + &BrowsePage($id) if &ValidIdOrDie($id); + return 1; + } elsif ($action eq 'rc') { + &BrowsePage($RCName); + return 1; + } elsif ($action eq 'random') { + &DoRandom(); + return 1; + } elsif ($action eq 'history') { + &DoHistory($id) if &ValidIdOrDie($id); + return 1; + } + return 0; # Request not handled +} + +sub BrowsePage { + my ($id) = @_; + my ($fullHtml, $oldId, $allDiff, $showDiff, $openKept); + my ($revision, $goodRevision, $diffRevision, $newText); + + &OpenPage($id); + &OpenDefaultText(); + $openKept = 0; + $revision = &GetParam('revision', ''); + $revision =~ s/\D//g; # Remove non-numeric chars + $goodRevision = $revision; # Non-blank only if exists + if ($revision ne '') { + &OpenKeptRevisions('text_default'); + $openKept = 1; + if (!defined($KeptRevisions{$revision})) { + $goodRevision = ''; + } else { + &OpenKeptRevision($revision); + } + } + # Raw mode: just untranslated wiki text + if (&GetParam('raw', 0)) { + print &GetHttpHeader('text/plain'); + print $Text{'text'}; + return; + } + $newText = $Text{'text'}; # For differences + # Handle a single-level redirect + $oldId = &GetParam('oldid', ''); + if (($oldId eq '') && (substr($Text{'text'}, 0, 10) eq '#REDIRECT ')) { + $oldId = $id; + if (($FreeLinks) && ($Text{'text'} =~ /\#REDIRECT\s+\[\[.+\]\]/)) { + ($id) = ($Text{'text'} =~ /\#REDIRECT\s+\[\[(.+)\]\]/); + $id = &FreeToNormal($id); + } else { + ($id) = ($Text{'text'} =~ /\#REDIRECT\s+(\S+)/); + } + if (&ValidId($id) eq '') { + # Consider revision in rebrowse? + &ReBrowsePage($id, $oldId, 0); + return; + } else { # Not a valid target, so continue as normal page + $id = $oldId; + $oldId = ''; + } + } + $MainPage = $id; + $MainPage =~ s|/.*||; # Only the main page name (remove subpage) + $fullHtml = &GetHeader($id, &QuoteHtml($id), $oldId); + if ($revision ne '') { + if (($revision eq $Page{'revision'}) || ($goodRevision ne '')) { + $fullHtml .= '' . Ts('Showing revision %s', $revision) . "
"; + } else { + $fullHtml .= '' . Ts('Revision %s not available', $revision) + . ' (' . T('showing current revision instead') + . ')
'; + } + } + $allDiff = &GetParam('alldiff', 0); + if ($allDiff != 0) { + $allDiff = &GetParam('defaultdiff', 1); + } + if ((($id eq $RCName) || (T($RCName) eq $id) || (T($id) eq $RCName)) + && &GetParam('norcdiff', 1)) { + $allDiff = 0; # Only show if specifically requested + } + $showDiff = &GetParam('diff', $allDiff); + if ($UseDiff && $showDiff) { + $diffRevision = $goodRevision; + $diffRevision = &GetParam('diffrevision', $diffRevision); + # Eventually try to avoid the following keep-loading if possible? + &OpenKeptRevisions('text_default') if (!$openKept); + $fullHtml .= &GetDiffHTML($showDiff, $id, $diffRevision, + $revision, $newText); + $fullHtml .= "
\n"; + } + $fullHtml .= '
'; + $fullHtml .= &WikiToHTML($Text{'text'}); + $fullHtml .= '
'; + if (!&GetParam('embed', $EmbedWiki)) { + $fullHtml .= "
\n"; + } + if (($id eq $RCName) || (T($RCName) eq $id) || (T($id) eq $RCName)) { + print $fullHtml; + print '
'; + &DoRc(1); + print '
'; + print "
\n" if (!&GetParam('embed', $EmbedWiki)); + print &GetFooterText($id, $goodRevision); + return; + } + $fullHtml .= &GetFooterText($id, $goodRevision); + print $fullHtml; + return if ($showDiff || ($revision ne '')); # Don't cache special version + &UpdateHtmlCache($id, $fullHtml) if ($UseCache && ($oldId eq '')); +} + +sub ReBrowsePage { + my ($id, $oldId, $isEdit) = @_; + + if ($oldId ne "") { # Target of #REDIRECT (loop breaking) + print &GetRedirectPage("action=browse&id=$id&oldid=$oldId", + $id, $isEdit); + } else { + print &GetRedirectPage($id, $id, $isEdit); + } +} + +sub DoRc { + my ($rcType) = @_; # 0 = RSS, 1 = HTML + my ($fileData, $rcline, $i, $daysago, $lastTs, $ts, $idOnly); + my (@fullrc, $status, $oldFileData, $firstTs, $errorText, $showHTML); + my $starttime = 0; + my $showbar = 0; + + if (0 == $rcType) { + $showHTML = 0; + } else { + $showHTML = 1; + } + if (&GetParam("from", 0)) { + $starttime = &GetParam("from", 0); + if ($showHTML) { + print "

" . Ts('Updates since %s', &TimeToText($starttime)) + . "

\n"; + } + } else { + $daysago = &GetParam("days", 0); + $daysago = &GetParam("rcdays", 0) if ($daysago == 0); + if ($daysago) { + $starttime = $Now - ((24*60*60)*$daysago); + if ($showHTML) { + print "

" . Ts('Updates in the last %s day' + . (($daysago != 1)?"s":""), $daysago) . "

\n"; + } + # Note: must have two translations (for "day" and "days") + # Following comment line is for translation helper script + # Ts('Updates in the last %s days', ''); + } + } + if ($starttime == 0) { + if (0 == $rcType) { + $starttime = $Now - ((24*60*60)*$RssDays); + } else { + $starttime = $Now - ((24*60*60)*$RcDefault); + } + if ($showHTML) { + print "

" . Ts('Updates in the last %s day' + . (($RcDefault != 1)?"s":""), $RcDefault) . "

\n"; + } + # Translation of above line is identical to previous version + } + # Read rclog data (and oldrclog data if needed) + ($status, $fileData) = &ReadFile($RcFile); + $errorText = ""; + if (!$status) { + # Save error text if needed. + $errorText = '

' . Ts('Could not open %s log file', $RCName) + . ": $RcFile

" + . T('Error was') . ":\n

$!
\n" . '

' + . T('Note: This error is normal if no changes have been made.') . "\n"; + } + @fullrc = split(/\n/, $fileData); + $firstTs = 0; + if (@fullrc > 0) { # Only false if no lines in file + ($firstTs) = split(/$FS3/, $fullrc[0]); + } + if (($firstTs == 0) || ($starttime <= $firstTs)) { + ($status, $oldFileData) = &ReadFile($RcOldFile); + if ($status) { + @fullrc = split(/\n/, $oldFileData . $fileData); + } else { + if ($errorText ne "") { # could not open either rclog file + print $errorText; + print "

" + . Ts('Could not open old %s log file', $RCName) + . ": $RcOldFile

" + . T('Error was') . ":\n

$!
\n"; + return; + } + } + } + $lastTs = 0; + if (@fullrc > 0) { # Only false if no lines in file + ($lastTs) = split(/$FS3/, $fullrc[$#fullrc]); + } + $lastTs++ if (($Now - $lastTs) > 5); # Skip last unless very recent + + $idOnly = &GetParam("rcidonly", ""); + if ($idOnly && $showHTML) { + print '(' . Ts('for %s only', &ScriptLink($idOnly, $idOnly)) + . ')
'; + } + if ($showHTML) { + foreach $i (@RcDays) { + print " | " if $showbar; + $showbar = 1; + print &ScriptLink("action=rc&days=$i", + Ts('%s day' . (($i != 1)?'s':''), $i)); + # Note: must have two translations (for "day" and "days") + # Following comment line is for translation helper script + # Ts('%s days', ''); + } + print "
" . &ScriptLink("action=rc&from=$lastTs", + T('List new changes starting from')); + print " " . &TimeToText($lastTs) . "
\n"; + } + $i = 0; + while ($i < @fullrc) { # Optimization: skip old entries quickly + ($ts) = split(/$FS3/, $fullrc[$i]); + if ($ts >= $starttime) { + $i -= 1000 if ($i > 0); + last; + } + $i += 1000; + } + $i -= 1000 if (($i > 0) && ($i >= @fullrc)); + for (; $i < @fullrc ; $i++) { + ($ts) = split(/$FS3/, $fullrc[$i]); + last if ($ts >= $starttime); + } + if ($i == @fullrc && $showHTML) { + print '
' . Ts('No updates since %s', + &TimeToText($starttime)) . "
\n"; + } else { + splice(@fullrc, 0, $i); # Remove items before index $i + # Consider an end-time limit (items older than X) + if (0 == $rcType) { + print &GetRcRss(@fullrc); + } else { + print &GetRcHtml(@fullrc); + } + } + if ($showHTML) { + print '

' . Ts('Page generated %s', &TimeToText($Now)), "
\n"; + } +} + +sub GetRc { + my $rcType = shift; + my @outrc = @_; + my ($rcline, $date, $newtop, $author, $inlist, $result); + my ($showedit, $link, $all, $idOnly, $headItem, $item); + my ($ts, $pagename, $summary, $isEdit, $host, $kind, $extraTemp); + my ($rcchangehist, $tEdit, $tChanges, $tDiff); + my ($headList, $historyPrefix, $diffPrefix); + my %extra = (); + my %changetime = (); + my %pagecount = (); + + # Slice minor edits + $showedit = &GetParam("rcshowedit", $ShowEdits); + $showedit = &GetParam("showedit", $showedit); + if ($showedit != 1) { + my @temprc = (); + foreach $rcline (@outrc) { + ($ts, $pagename, $summary, $isEdit, $host) = split(/$FS3/, $rcline); + if ($showedit == 0) { # 0 = No edits + push(@temprc, $rcline) if (!$isEdit); + } else { # 2 = Only edits + push(@temprc, $rcline) if ($isEdit); + } + } + @outrc = @temprc; + } + # Optimize param fetches out of main loop + $rcchangehist = &GetParam("rcchangehist", 1); + # Optimize translations out of main loop + $tEdit = T('(edit)'); + $tDiff = T('(diff)'); + $tChanges = T('changes'); + $diffPrefix = $QuotedFullUrl . &QuoteHtml("?action=browse\&diff=4\&id="); + $historyPrefix = $QuotedFullUrl . &QuoteHtml("?action=history\&id="); + foreach $rcline (@outrc) { + ($ts, $pagename) = split(/$FS3/, $rcline); + $pagecount{$pagename}++; + $changetime{$pagename} = $ts; + } + $date = ""; + $all = &GetParam("rcall", 0); + $all = &GetParam("all", $all); + $newtop = &GetParam("rcnewtop", $RecentTop); + $newtop = &GetParam("newtop", $newtop); + $idOnly = &GetParam("rcidonly", ""); + $inlist = 0; + $headList = ''; + $result = ''; + @outrc = reverse @outrc if ($newtop); + foreach $rcline (@outrc) { + ($ts, $pagename, $summary, $isEdit, $host, $kind, $extraTemp) + = split(/$FS3/, $rcline); + next if ((!$all) && ($ts < $changetime{$pagename})); + next if (($idOnly ne "") && ($idOnly ne $pagename)); + %extra = split(/$FS2/, $extraTemp, -1); + if ($date ne &CalcDay($ts)) { + $date = &CalcDay($ts); + if (1 == $rcType) { # HTML + # add date, properly closing lists first + if ($inlist) { + $result .= "\n"; + $inlist = 0; + } + $result .= "

" . $date . "

\n"; + if (!$inlist) { + $result .= "
    \n"; + $inlist = 1; + } + } + } + if (0 == $rcType) { # RSS + ($headItem, $item) = &GetRssRcLine($pagename, $ts, $host, + $extra{'name'}, $extra{'id'}, $summary, $isEdit, + $pagecount{$pagename}, $extra{'revision'}, + $diffPrefix, $historyPrefix); + $headList .= $headItem; + $result .= $item; + } else { # HTML + $result .= &GetHtmlRcLine($pagename, $ts, $host, $extra{'name'}, + $extra{'id'}, $summary, $isEdit, + $pagecount{$pagename}, $extra{'revision'}, + $tEdit, $tDiff, $tChanges, $all, $rcchangehist); + } + } + if (1 == $rcType) { + $result .= "
\n" if ($inlist); # Close final tag + } + return ($headList, $result); # Just ignore headList for HTML +} + +sub GetRcHtml { + my ($html, $extra); + + ($extra, $html) = &GetRc(1, @_); + return $html; +} + +sub GetHtmlRcLine { + my ($pagename, $timestamp, $host, $userName, $userID, $summary, + $isEdit, $pagecount, $revision, $tEdit, $tDiff, $tChanges, $all, + $rcchangehist) = @_; + my ($author, $sum, $edit, $count, $link, $html); + + $html = ''; + $host = &QuoteHtml($host); + if (defined($userName) && defined($userID)) { + $author = &GetAuthorLink($host, $userName, $userID); + } else { + $author = &GetAuthorLink($host, "", 0); + } + $sum = ""; + if (($summary ne "") && ($summary ne "*")) { + $summary = &QuoteHtml($summary); + $sum = "[$summary] "; + } + $edit = ""; + $edit = "$tEdit " if ($isEdit); + $count = ""; + if ((!$all) && ($pagecount > 1)) { + $count = "($pagecount "; + if ($rcchangehist) { + $count .= &GetHistoryLink($pagename, $tChanges); + } else { + $count .= $tChanges; + } + $count .= ") "; + } + $link = ""; + if ($UseDiff && &GetParam("diffrclink", 1)) { + $link .= &ScriptLinkDiff(4, $pagename, $tDiff, "") . " "; + } + $link .= &GetPageLink($pagename); + $html .= "
  • $link "; + $html .= &CalcTime($timestamp) . " $count$edit" . " $sum"; + $html .= ". . . . . $author\n"; + return $html; +} + +sub GetRcRss { + my ($rssHeader, $headList, $items); + + # Normally get URL from script, but allow override + $FullUrl = $q->url(-full=>1) if ($FullUrl eq ""); + $QuotedFullUrl = &QuoteHtml($FullUrl); + $SiteDescription = &QuoteHtml($SiteDescription); + + my $ChannelAbout = &QuoteHtml($FullUrl . &ScriptLinkChar() + . $ENV{QUERY_STRING}); + $rssHeader = < + + + ${\(&QuoteHtml($SiteName))} + ${\($QuotedFullUrl . &QuoteHtml("?$RCName"))} + ${\(&QuoteHtml($SiteDescription))} + + + $InterWikiMoniker + + + + +RSS + ($headList, $items) = &GetRc(0, @_); + $rssHeader .= $headList; + return < + + + + ${\(&QuoteHtml($SiteName))} + $RssLogoUrl + $QuotedFullUrl + +$items + +RSS +} + +sub GetRssRcLine{ + my ($pagename, $timestamp, $host, $userName, $userID, $summary, + $isEdit, $pagecount, $revision, $diffPrefix, $historyPrefix) = @_; + my ($itemID, $description, $authorLink, $author, $status, + $importance, $date, $item, $headItem); + + # Add to list of items in the + $itemID = $FullUrl . &ScriptLinkChar() + . &GetOldPageParameters('browse', $pagename, $revision); + $itemID = &QuoteHtml($itemID); + $headItem = " \n"; + # Add to list of items proper. + if (($summary ne "") && ($summary ne "*")) { + $description = &QuoteHtml($summary); + } + $host = &QuoteHtml($host); + if ($userName) { + $author = &QuoteHtml($userName); + $authorLink = "link=\"$QuotedFullUrl?$author\""; + } else { + $author = $host; + } + $status = (1 == $revision) ? 'new' : 'updated'; + $importance = $isEdit ? 'minor' : 'major'; + $timestamp += $TimeZoneOffset; + my ($sec, $min, $hour, $mday, $mon, $year) = localtime($timestamp); + $year += 1900; + $date = sprintf("%4d-%02d-%02dT%02d:%02d:%02d+%02d:00", + $year, $mon+1, $mday, $hour, $min, $sec, $TimeZoneOffset/(60*60)); + $pagename = &QuoteHtml($pagename); + # Write it out longhand + $item = < + $pagename + $QuotedFullUrl?$pagename + $description + $date + + + $author + + + $status + $importance + $diffPrefix$pagename + $revision + $historyPrefix$pagename + +RSS + return ($headItem, $item); +} + +sub DoRss { + print "Content-type: text/xml\n\n"; + &DoRc(0); +} + +sub DoRandom { + my ($id, @pageList); + + @pageList = &AllPagesList(); # Optimize? + $id = $pageList[int(rand($#pageList + 1))]; + &ReBrowsePage($id, "", 0); +} + +sub DoHistory { + my ($id) = @_; + my ($html, $canEdit, $row, $newText); + + print &GetHeader('', Ts('History of %s', $id), '') . '
    '; + &OpenPage($id); + &OpenDefaultText(); + $newText = $Text{'text'}; + $canEdit = 0; + $canEdit = &UserCanEdit($id) if ($HistoryEdit); + if ($UseDiff) { + print < + + + + +EOF + } + $html = &GetHistoryLine($id, $Page{'text_default'}, $canEdit, $row++); + &OpenKeptRevisions('text_default'); + foreach (reverse sort {$a <=> $b} keys %KeptRevisions) { + next if ($_ eq ""); # (needed?) + $html .= &GetHistoryLine($id, $KeptRevisions{$_}, $canEdit, $row++); + } + print $html; + if ($UseDiff) { + my $label = T('Compare'); + print "
      
    \n"; + print "
    \n"; + print &GetDiffHTML(&GetParam('defaultdiff', 1), $id, '', '', $newText); + } + print &GetCommonFooter(); +} + +sub GetMaskedHost { + my ($text) = @_; + my ($logText); + + if (!$MaskHosts) { + return $text; + } + $logText = T('(logged)'); + if (!($text =~ s/\d+$/$logText/)) { # IP address (ending numbers masked) + $text =~ s/^[^\.\(]+/$logText/; # Host name: mask until first . + } + return $text; +} + +sub GetHistoryLine { + my ($id, $section, $canEdit, $row) = @_; + my ($html, $expirets, $rev, $summary, $host, $user, $uid, $ts, $minor); + my (%sect, %revtext); + + %sect = split(/$FS2/, $section, -1); + %revtext = split(/$FS3/, $sect{'data'}); + $rev = $sect{'revision'}; + $summary = $revtext{'summary'}; + if ((defined($sect{'host'})) && ($sect{'host'} ne '')) { + $host = $sect{'host'}; + } else { + $host = $sect{'ip'}; + } + $host = &GetMaskedHost($host); + $user = $sect{'username'}; + $uid = $sect{'id'}; + $ts = $sect{'ts'}; + $minor = ''; + $minor = '' . T('(edit)') . ' ' if ($revtext{'minor'}); + $expirets = $Now - ($KeepDays * 24 * 60 * 60); + if ($UseDiff) { + my ($c1, $c2); + $c1 = 'checked="checked"' if 1 == $row; + $c2 = 'checked="checked"' if 0 == $row; + $html .= " "; + $html .= ""; + } + if (0 == $row) { # current revision + $html .= &GetPageLinkText($id, Ts('Revision %s', $rev)) . ' '; + if ($canEdit) { + $html .= &GetEditLink($id, T('Edit')) . ' '; + } + } else { + $html .= &GetOldPageLink('browse', $id, $rev, + Ts('Revision %s', $rev)) . ' '; + if ($canEdit) { + $html .= &GetOldPageLink('edit', $id, $rev, T('Edit')) . ' '; + } + } + $html .= ". . " . $minor . &TimeToText($ts) . " "; + $html .= T('by') . ' ' . &GetAuthorLink($host, $user, $uid) . " "; + if (defined($summary) && ($summary ne "") && ($summary ne "*")) { + $summary = &QuoteHtml($summary); # Thanks Sunir! :-) + $html .= "[$summary] "; + } + $html .= $UseDiff ? "\n" : "
    \n"; + return $html; +} + +# ==== HTML and page-oriented functions ==== +sub ScriptLinkChar { + if ($SlashLinks) { + return '/'; + } + return '?'; +} + +sub ScriptLink { + my ($action, $text) = @_; + + return "$text"; +} + +sub ScriptLinkClass { + my ($action, $text, $class) = @_; + + return "$text"; +} + +sub GetAuthorLink { + my ($host, $userName, $uid) = @_; + my ($html, $title, $userNameShow); + + $userNameShow = $userName; + if ($FreeLinks) { + $userName =~ s/ /_/g; + $userNameShow =~ s/_/ /g; + } + if (&ValidId($userName) ne "") { # Invalid under current rules + $userName = ""; # Just pretend it isn't there. + } + if (($uid > 0) && ($userName ne "")) { + $html = &ScriptLinkTitle($userName, $userNameShow, + Ts('ID %s', $uid) . ' ' . Ts('from %s', $host)); + } else { + $html = $host; + } + return $html; +} + +sub GetHistoryLink { + my ($id, $text) = @_; + + if ($FreeLinks) { + $id =~ s/ /_/g; + } + return &ScriptLink("action=history&id=$id", $text); +} + +sub GetHeader { + my ($id, $title, $oldId) = @_; + my $header = ""; + my $logoImage = ""; + my $result = ""; + my $embed = &GetParam('embed', $EmbedWiki); + my $altText = T('[Home]'); + + $result = &GetHttpHeader(''); + if ($FreeLinks) { + $title =~ s/_/ /g; # Display as spaces + } + $result .= &GetHtmlHeader("$SiteName: $title"); + return $result if ($embed); + + $result .= '
    '; + if ($oldId ne '') { + $result .= $q->h3('(' . Ts('redirected from %s', + &GetEditLink($oldId, $oldId)) . ')'); + } + if ((!$embed) && ($LogoUrl ne "")) { + $logoImage = "img src=\"$LogoUrl\" alt=\"$altText\" border=0"; + if (!$LogoLeft) { + $logoImage .= " align=\"right\""; + } + $header = &ScriptLink($HomePage, "<$logoImage>"); + } + if ($id ne '') { + $result .= $q->h1($header . &GetBackLinksSearchLink($id)); + } else { + $result .= $q->h1($header . $title); + } + if (&GetParam("toplinkbar", 1)) { + $result .= &GetGotoBar($id) . "
    "; + } + $result .= '
    '; + return $result; +} + +sub GetHttpHeader { + my ($type) = @_; + my $cookie; + + $type = 'text/html' if ($type eq ''); + if (defined($SetCookie{'id'})) { + $cookie = "$CookieName=" + . "rev&" . $SetCookie{'rev'} + . "&id&" . $SetCookie{'id'} + . "&randkey&" . $SetCookie{'randkey'}; + $cookie .= ";expires=Fri, 08-Sep-2013 19:48:23 GMT"; + if ($HttpCharset ne '') { + return $q->header(-cookie=>$cookie, + -type=>"$type; charset=$HttpCharset"); + } + return $q->header(-cookie=>$cookie); + } + if ($HttpCharset ne '') { + return $q->header(-type=>"$type; charset=$HttpCharset"); + } + return $q->header(-type=>$type); +} + +sub GetHtmlHeader { + my ($title) = @_; + my ($dtd, $html, $bodyExtra, $stylesheet); + + $html = ''; + $dtd = '-//IETF//DTD HTML//EN'; + $html = qq(\n); + $title = $q->escapeHTML($title); + $html .= "$title\n"; + if ($FavIcon ne '') { + $html .= '' + } + if ($MetaKeywords) { + my $keywords = $OpenPageName; + $keywords =~ s/([a-z])([A-Z])/$1, $2/g; + $html .= "\n" if $keywords; + } + if ($SiteBase ne "") { + $html .= qq(\n); + } + $stylesheet = &GetParam('stylesheet', $StyleSheet); + $stylesheet = $StyleSheet if ($stylesheet eq ''); + $stylesheet = '' if ($stylesheet eq '*'); # Allow removing override + if ($stylesheet ne '') { + $html .= qq(\n); + } + $html .= $UserHeader; + $bodyExtra = ''; + if ($UserBody ne '') { + $bodyExtra = ' ' . $UserBody; + } + if ($BGColor ne '') { + $bodyExtra .= qq( BGCOLOR="$BGColor"); + } + $html .= "\n"; + return $html; +} + +sub GetFooterText { + my ($id, $rev) = @_; + my $result; + + if (&GetParam('embed', $EmbedWiki)) { + return $q->end_html; + } + $result = '
    '; + $result .= &GetFormStart(); + $result .= &GetGotoBar($id); + if (&UserCanEdit($id, 0)) { + if ($rev ne '') { + $result .= &GetOldPageLink('edit', $id, $rev, + Ts('Edit revision %s of this page', $rev)); + } else { + $result .= &GetEditLink($id, T('Edit text of this page')); + } + } else { + $result .= T('This page is read-only'); + } + $result .= ' | '; + $result .= &GetHistoryLink($id, T('View other revisions')); + if ($rev ne '') { + $result .= ' | '; + $result .= &GetPageLinkText($id, T('View current revision')); + } + if ($UseMetaWiki) { + $result .= ' | ' + . T('Search MetaWiki') . ''; + } + if ($Section{'revision'} > 0) { + $result .= '
    '; + if ($rev eq '') { # Only for most current rev + $result .= T('Last edited'); + } else { + $result .= T('Edited'); + } + $result .= ' ' . &TimeToText($Section{ts}); + if ($AuthorFooter) { + $result .= ' ' . Ts('by %s', &GetAuthorLink($Section{'host'}, + $Section{'username'}, $Section{'id'})); + } + } + if ($UseDiff) { + $result .= ' ' . &ScriptLinkDiff(4, $id, T('(diff)'), $rev); + } + $result .= '
    ' . &GetSearchForm(); + if ($AdminBar && &UserIsAdmin()) { + $result .= '
    ' . &GetAdminBar($id); + } + if ($DataDir =~ m|/tmp/|) { + $result .= '
    ' . T('Warning') . ': ' + . Ts('Database is stored in temporary directory %s', + $DataDir) . '
    '; + } + if ($ConfigError ne '') { + $result .= '
    ' . T('Config file error:') . ' ' + . $ConfigError . '
    '; + } + $result .= $q->endform; + if ($FooterNote ne '') { + $result .= T($FooterNote); + } + $result .= '
    '; + $result .= &GetMinimumFooter(); + return $result; +} + +sub GetCommonFooter { + my ($html); + + $html = '
    ' . '
    ' + . &GetFormStart() . &GetGotoBar('') + . &GetSearchForm() . $q->endform; + if ($FooterNote ne '') { + $html .= T($FooterNote); + } + $html .= '
    ' . $q->end_html; + return $html; +} + +sub GetMinimumFooter { + return $q->end_html; +} + +sub GetFormStart { + return $q->startform("POST", "$ScriptName", + "application/x-www-form-urlencoded"); +} + +sub GetGotoBar { + my ($id) = @_; + my ($main, $bartext); + + $bartext = &GetPageLink($HomePage); + if ($id =~ m|/|) { + $main = $id; + $main =~ s|/.*||; # Only the main page name (remove subpage) + $bartext .= " | " . &GetPageLink($main); + } + $bartext .= " | " . &GetPageLink($RCName); + $bartext .= " | " . &GetPrefsLink(); + if ($UseUpload && &UserCanUpload()) { + $bartext .= " | " . &GetUploadLink(); + } + if (&GetParam("linkrandom", 0)) { + $bartext .= " | " . &GetRandomLink(); + } + if ($UserGotoBar ne '') { + $bartext .= " | " . $UserGotoBar; + } + $bartext .= "
    \n"; + return $bartext; +} + +sub GetSearchForm { + my ($result); + + $result = T('Search:') . ' ' . $q->textfield(-name=>'search', -size=>20); + if ($SearchButton) { + $result .= $q->submit('dosearch', T('Go!')); + } else { + $result .= &GetHiddenValue("dosearch", 1); + } + return $result; +} + +sub GetRedirectPage { + my ($newid, $name, $isEdit) = @_; + my ($url, $html); + my ($nameLink); + + # Normally get URL from script, but allow override. + $FullUrl = $q->url(-full=>1) if ($FullUrl eq ""); + $url = $FullUrl . &ScriptLinkChar() . $newid; + $nameLink = "$name"; + if ($RedirType < 3) { + if ($RedirType == 1) { # Use CGI.pm + # NOTE: do NOT use -method (does not work with old CGI.pm versions) + # Thanks to Daniel Neri for fixing this problem. + $html = $q->redirect(-uri=>$url); + } else { # Minimal header + $html = "Status: 302 Moved\n"; + $html .= "Location: $url\n"; + $html .= "Content-Type: text/html\n"; # Needed for browser failure + $html .= "\n"; + } + $html .= "\n" . Ts('Your browser should go to the %s page.', $newid); + $html .= ' ' . Ts('If it does not, click %s to continue.', $nameLink); + } else { + if ($isEdit) { + $html = &GetHeader('', T('Thanks for editing...'), ''); + $html .= Ts('Thank you for editing %s.', $nameLink); + } else { + $html = &GetHeader('', T('Link to another page...'), ''); + } + $html .= "\n

    "; + $html .= Ts('Follow the %s link to continue.', $nameLink); + $html .= &GetMinimumFooter(); + } + return $html; +} + +# ==== Common wiki markup ==== +sub RestoreSavedText { + my ($text) = @_; + + 1 while $text =~ s/$FS(\d+)$FS/$SaveUrl{$1}/ge; # Restore saved text + return $text; +} + +sub RemoveFS { + my ($text) = @_; + + # Note: must remove all $FS, and $FS may be multi-byte/char separator + $text =~ s/($FS)+(\d)/$2/g; + return $text; +} + +sub WikiToHTML { + my ($pageText) = @_; + $TableMode = 0; + + %SaveUrl = (); + %SaveNumUrl = (); + $SaveUrlIndex = 0; + $SaveNumUrlIndex = 0; + $pageText = &RemoveFS($pageText); + if ($RawHtml) { + $pageText =~ s/((.|\n)*?)<\/html>/&StoreRaw($1)/ige; + } + $pageText = &QuoteHtml($pageText); + $pageText =~ s/\\ *\r?\n/ /g; # Join lines with backslash at end + if ($ParseParas) { + # Note: The following 3 rules may span paragraphs, so they are + # copied from CommonMarkup + $pageText =~ + s/\<nowiki\>((.|\n)*?)\<\/nowiki\>/&StoreRaw($1)/ige; + $pageText =~ + s/\<pre\>((.|\n)*?)\<\/pre\>/&StorePre($1, "pre")/ige; + $pageText =~ + s/\<code\>((.|\n)*?)\<\/code\>/&StorePre($1, "code")/ige; + $pageText =~ s/((.|\n)+?\n)\s*\n/&ParseParagraph($1)/geo; + $pageText =~ s/(.*)<\/p>(.+)$/$1.&ParseParagraph($2)/seo; + } else { + $pageText = &CommonMarkup($pageText, 1, 0); # Multi-line markup + $pageText = &WikiLinesToHtml($pageText); # Line-oriented markup + } + while (@HeadingNumbers) { + pop @HeadingNumbers; + $TableOfContents .= "\n\n"; + } + $pageText =~ s/<toc>/$TableOfContents/gi; + if ($LateRules ne '') { + $pageText = &EvalLocalRules($LateRules, $pageText, 0); + } + return &RestoreSavedText($pageText); +} + +sub CommonMarkup { + my ($text, $useImage, $doLines) = @_; + local $_ = $text; + + if ($doLines < 2) { # 2 = do line-oriented only + # The tag stores text with no markup (except quoting HTML) + s/\<nowiki\>((.|\n)*?)\<\/nowiki\>/&StoreRaw($1)/ige; + # The 

     tag wraps the stored text with the HTML 
     tag
+    s/\<pre\>((.|\n)*?)\<\/pre\>/&StorePre($1, "pre")/ige;
+    s/\<code\>((.|\n)*?)\<\/code\>/&StorePre($1, "code")/ige;
+    if ($EarlyRules ne '') {
+      $_ = &EvalLocalRules($EarlyRules, $_, !$useImage);
+    }
+    s/\[\#(\w+)\]/&StoreHref(" name=\"$1\"")/ge if $NamedAnchors;
+    if ($HtmlTags) {
+      my ($t);
+      foreach $t (@HtmlPairs) {
+        s/\<$t(\s[^<>]+?)?\>(.*?)\<\/$t\>/<$t$1>$2<\/$t>/gis;
+      }
+      foreach $t (@HtmlSingle) {
+        s/\<$t(\s[^<>]+?)?\>/<$t$1>/gi;
+      }
+    } else {
+      # Note that these tags are restricted to a single line
+      s/\<b\>(.*?)\<\/b\>/$1<\/b>/gi;
+      s/\<i\>(.*?)\<\/i\>/$1<\/i>/gi;
+      s/\<strong\>(.*?)\<\/strong\>/$1<\/strong>/gi;
+      s/\<em\>(.*?)\<\/em\>/$1<\/em>/gi;
+    }
+    s/\<tt\>(.*?)\<\/tt\>/$1<\/tt>/gis;  #  (MeatBall)
+    s/\<br\>/
    /gi;  # Allow simple line break anywhere
+    if ($HtmlLinks) {
+      s/\<A(\s[^<>]+?)\>(.*?)\<\/a\>/&StoreHref($1, $2)/gise;
+    }
+    if ($FreeLinks) {
+      # Consider: should local free-link descriptions be conditional?
+      # Also, consider that one could write [[Bad Page|Good Page]]?
+      s/\[\[$FreeLinkPattern\|([^\]]+)\]\]/&StorePageOrEditLink($1, $2)/geo;
+      s/\[\[$FreeLinkPattern\]\]/&StorePageOrEditLink($1, "")/geo;
+    }
+    if ($BracketText) {  # Links like [URL text of link]
+      s/\[$UrlPattern\s+([^\]]+?)\]/&StoreBracketUrl($1, $2, $useImage)/geos;
+      s/\[$InterLinkPattern\s+([^\]]+?)\]/&StoreBracketInterPage($1, $2,
+                                                             $useImage)/geos;
+      if ($WikiLinks && $BracketWiki) {  # Local bracket-links
+        s/\[$LinkPattern\s+([^\]]+?)\]/&StoreBracketLink($1, $2)/geos;
+        s/\[$AnchoredLinkPattern\s+([^\]]+?)\]/&StoreBracketAnchoredLink($1,
+                                               $2, $3)/geos if $NamedAnchors;
+      }
+    }
+    s/\[$UrlPattern\]/&StoreBracketUrl($1, "", 0)/geo;
+    s/\[$InterLinkPattern\]/&StoreBracketInterPage($1, "", 0)/geo;
+    s/\b$UrlPattern/&StoreUrl($1, $useImage)/geo;
+    s/\b$InterLinkPattern/&StoreInterPage($1, $useImage)/geo;
+    if ($WikiLinks) {
+      s/$AnchoredLinkPattern/&StoreRaw(&GetPageOrEditAnchoredLink($1,
+                             $2, ""))/geo if $NamedAnchors;
+      # CAA: Putting \b in front of $LinkPattern breaks /SubPage links
+      #      (subpage links without the main page)
+      s/$LinkPattern/&GetPageOrEditLink($1, "")/geo;
+    }
+    s/\b$RFCPattern/&StoreRFC($1)/geo;
+    s/\b$ISBNPattern/&StoreISBN($1)/geo;
+    if ($UseUpload) {
+      s/$UploadPattern/&StoreUpload($1)/geo;
+    }
+    if ($ThinLine) {
+      if ($OldThinLine) {  # Backwards compatible, conflicts with headers
+        s/====+/
    /g;
+      } else {             # New behavior--no conflict
+        s/------+/
    /g;
+      }
+      s/----+/
    /g;
+    } else {
+      s/----+/
    /g;
+    }
+  }
+  if ($doLines) { # 0 = no line-oriented, 1 or 2 = do line-oriented
+    # The quote markup patterns avoid overlapping tags (with 5 quotes)
+    # by matching the inner quotes for the strong pattern.
+    s/('*)'''(.*?)'''/$1$2<\/strong>/g;
+    s/''(.*?)''/$1<\/em>/g;
+    if ($UseHeadings) {
+      s/(^|\n)\s*(\=+)\s+([^\n]+)\s+\=+/&WikiHeading($1, $2, $3)/geo;
+    }
+    if ($TableMode) {
+      s/((\|\|)+)/"<\/TD>"/ge;
+    }
+  }
+  return $_;
+}
+
+sub WikiLinesToHtml {
+  my ($pageText) = @_;
+  my ($pageHtml, @htmlStack, $code, $codeAttributes, $depth, $oldCode);
+
+  @htmlStack = ();
+  $depth = 0;
+  $pageHtml = "";
+  foreach (split(/\n/, $pageText)) {  # Process lines one-at-a-time
+    $code = '';
+    $codeAttributes = '';
+    $TableMode = 0;
+    $_ .= "\n";
+    if (s/^(\;+)([^:]+\:?)\:/
    $2
    /) {
+      $code = "DL";
+      $depth = length $1;
+    } elsif (s/^(\:+)/
    /) {
+      $code = "DL";
+      $depth = length $1;
+    } elsif (s/^(\*+)/
  • /) {
+      $code = "UL";
+      $depth = length $1;
+    } elsif (s/^(\#+)/
  • /) {
+      $code = "OL";
+      $depth = length $1;
+    } elsif ($TableSyntax &&
+             s/^((\|\|)+)(.*)\|\|\s*$/"$3<\/TD><\/TR>\n"/e) {
+      $code = 'TABLE';
+      $codeAttributes = "BORDER='1'";
+      $TableMode = 1;
+      $depth = 1;
+    } elsif (/^[ \t].*\S/) {
+      $code = "PRE";
+      $depth = 1;
+    } else {
+      $depth = 0;
+    }
+    while (@htmlStack > $depth) {   # Close tags as needed
+      $pageHtml .=  "\n";
+    }
+    if ($depth > 0) {
+      $depth = $IndentLimit  if ($depth > $IndentLimit);
+      if (@htmlStack) {  # Non-empty stack
+        $oldCode = pop(@htmlStack);
+        if ($oldCode ne $code) {
+          $pageHtml .= "<$code>\n";
+        }
+        push(@htmlStack, $code);
+      }
+      while (@htmlStack < $depth) {
+        push(@htmlStack, $code);
+        $pageHtml .= "<$code $codeAttributes>\n";
+      }
+    }
+    if (!$ParseParas) {
+      s/^\s*$/
    \n/;                      # Blank lines become 
     tags
+    }
+    $pageHtml .= &CommonMarkup($_, 1, 2);  # Line-oriented common markup
+  }
+  while (@htmlStack > 0) {       # Clear stack
+    $pageHtml .=  "\n";
+  }
+  return $pageHtml;
+}
+
+sub EvalLocalRules {
+  my ($rules, $origText, $isDiff) = @_;
+  my ($text, $reportError, $errorText);
+
+  $text = $origText;
+  $reportError = 1;
+  # Basic idea: the $rules should change $text, possibly with different
+  # behavior if $isDiff is true (no images or color changes?)
+  # Note: for fun, the $rules could also change $reportError and $origText
+  if (!eval $rules) {
+    $errorText = $@;
+    if ($errorText eq '') {
+      # Search for "Unknown Error" for the reason the next line is commented
+#     $errorText = T('Unknown Error (no error text)');
+    }
+    if ($errorText ne '') {
+      $text = $origText;    # Consider: should partial results be kept?
+      if ($reportError) {
+        $text .= '
    ' . T('Local rule error:') . '
    '
+                 . &QuoteHtml($errorText);
+      }
+    }
+  }
+  return $text;
+}
+ 
+sub QuoteHtml {
+  my ($html) = @_;
+
+  $html =~ s/&/&/g;
+  $html =~ s//>/g;
+  $html =~ s/&([#a-zA-Z0-9]+);/&$1;/g;  # Allow character references
+  return $html;
+}
+
+sub ParseParagraph {
+  my ($text) = @_;
+
+  $text = &CommonMarkup($text, 1, 0);   # Multi-line markup
+  $text = &WikiLinesToHtml($text);      # Line-oriented markup
+  return "
    $text
    \n";
+}
+
+sub StoreInterPage {
+  my ($id, $useImage) = @_;
+  my ($link, $extra);
+
+  ($link, $extra) = &InterPageLink($id, $useImage);
+  # Next line ensures no empty links are stored
+  $link = &StoreRaw($link)  if ($link ne "");
+  return $link . $extra;
+}
+
+sub InterPageLink {
+  my ($id, $useImage) = @_;
+  my ($name, $site, $remotePage, $url, $punct);
+
+  ($id, $punct) = &SplitUrlPunct($id);
+  $name = $id;
+  ($site, $remotePage) = split(/:/, $id, 2);
+  $url = &GetSiteUrl($site);
+  return ("", $id . $punct)  if ($url eq "");
+  $remotePage =~ s/&/&/g;  # Unquote common URL HTML
+  $url .= $remotePage;
+  return (&UrlLinkOrImage($url, $name, $useImage), $punct);
+}
+
+sub StoreBracketInterPage {
+  my ($id, $text, $useImage) = @_;
+  my ($site, $remotePage, $url, $index);
+
+  ($site, $remotePage) = split(/:/, $id, 2);
+  $remotePage =~ s/&/&/g;  # Unquote common URL HTML
+  $url = &GetSiteUrl($site);
+  if ($text ne "") {
+    return "[$id $text]"  if ($url eq "");
+  } else {
+    return "[$id]"  if ($url eq "");
+    $text = &GetBracketUrlIndex($id);
+  }
+  $url .= $remotePage;
+  if ($BracketImg && $useImage && &ImageAllowed($text)) {
+    $text = "";
+  } else {
+    $text = "[$text]";
+  }
+  return &StoreRaw("$text");
+}
+
+sub GetBracketUrlIndex {
+  my ($id) = @_;
+  my ($index, $key);
+
+  # Consider plain array?
+  if ($SaveNumUrl{$id} > 0) {
+    return $SaveNumUrl{$id};
+  }
+  $SaveNumUrlIndex++;  # Start with 1
+  $SaveNumUrl{$id} = $SaveNumUrlIndex;
+  return $SaveNumUrlIndex;
+}
+
+sub GetSiteUrl {
+  my ($site) = @_;
+  my ($data, $status);
+
+  if (!$InterSiteInit) {
+    ($status, $data) = &ReadFile($InterFile);
+    if ($status) {
+      %InterSite = split(/\s+/, $data);  # Consider defensive code
+    }
+    # Check for definitions to allow file to override automatic settings
+    if (!defined($InterSite{'LocalWiki'})) {
+      $InterSite{'LocalWiki'} = $ScriptName . &ScriptLinkChar();
+    }
+    if (!defined($InterSite{'Local'})) {
+      $InterSite{'Local'} = $ScriptName . &ScriptLinkChar();
+    }
+    $InterSiteInit = 1;  # Init only once per request
+  }
+  return $InterSite{$site}  if (defined($InterSite{$site}));
+  return '';
+}
+
+sub StoreRaw {
+  my ($html) = @_;
+
+  $SaveUrl{$SaveUrlIndex} = $html;
+  return $FS . $SaveUrlIndex++ . $FS;
+}
+
+sub StorePre {
+  my ($html, $tag) = @_;
+
+  return &StoreRaw("<$tag>" . $html . "");
+}
+
+sub StoreHref {
+  my ($anchor, $text) = @_;
+
+  return "$text";
+}
+
+sub StoreUrl {
+  my ($name, $useImage) = @_;
+  my ($link, $extra);
+
+  ($link, $extra) = &UrlLink($name, $useImage);
+  # Next line ensures no empty links are stored
+  $link = &StoreRaw($link)  if ($link ne "");
+  return $link . $extra;
+}
+
+sub UrlLink {
+  my ($rawname, $useImage) = @_;
+  my ($name, $punct);
+
+  ($name, $punct) = &SplitUrlPunct($rawname);
+  if ($LimitFileUrl && ($NetworkFile && $name =~ m|^file:|)) {
+    # Only do remote file:// links. No file:///c|/windows.
+    if ($name =~ m|^file://[^/]|) {
+      return ("$name", $punct);
+    }
+    return ($rawname, '');
+  }
+  return (&UrlLinkOrImage($name, $name, $useImage), $punct);
+}
+
+sub UrlLinkOrImage {
+  my ($url, $name, $useImage) = @_;
+
+  # Restricted image URLs so that mailto:foo@bar.gif is not an image
+  if ($useImage && &ImageAllowed($url)) {
+    return "";
+  }
+  return "$name";
+}
+
+sub ImageAllowed {
+  my ($url) = @_;
+  my ($site, $imagePrefixes);
+
+  $imagePrefixes = 'http:|https:|ftp:';
+  $imagePrefixes .= '|file:'  if (!$LimitFileUrl);
+  return 0  unless ($url =~ /^($imagePrefixes).+\.$ImageExtensions$/);
+  return 0  if ($url =~ /"/);      # No HTML-breaking quotes allowed
+  return 1  if (@ImageSites < 1);  # Most common case: () means all allowed
+  return 0  if ($ImageSites[0] eq 'none');  # Special case: none allowed
+  foreach $site (@ImageSites) {
+    return 1  if ($site eq substr($url, 0, length($site)));  # Match prefix
+  }
+  return 0;
+}
+
+sub StoreBracketUrl {
+  my ($url, $text, $useImage) = @_;
+
+  if ($text eq "") {
+    $text = &GetBracketUrlIndex($url);
+  }
+  if ($BracketImg && $useImage && &ImageAllowed($text)) {
+    $text = "";
+  } else {
+    $text = "[$text]";
+  }
+  return &StoreRaw("$text");
+}
+
+sub StoreBracketLink {
+  my ($name, $text) = @_;
+
+  return &StoreRaw(&GetPageLinkText($name, "[$text]"));
+}
+
+sub StoreBracketAnchoredLink {
+  my ($name, $anchor, $text) = @_;
+
+  return &StoreRaw(&GetPageLinkText("$name#$anchor", "[$text]"));
+}
+
+sub StorePageOrEditLink {
+  my ($page, $name) = @_;
+
+  if ($FreeLinks) {
+    $page =~ s/^\s+//;      # Trim extra spaces
+    $page =~ s/\s+$//;
+    $page =~ s|\s*/\s*|/|;  # ...also before/after subpages
+  }
+  $name =~ s/^\s+//;
+  $name =~ s/\s+$//;
+  return &StoreRaw(&GetPageOrEditLink($page, $name));
+}
+
+sub StoreRFC {
+  my ($num) = @_;
+
+  return &StoreRaw(&RFCLink($num));
+}
+
+sub RFCLink {
+  my ($num) = @_;
+
+  return "RFC $num";
+}
+
+sub StoreUpload {
+  my ($url) = @_;
+
+  return &StoreRaw(&UploadLink($url));
+}
+
+sub UploadLink {
+  my ($filename) = @_;
+  my ($html, $url);
+ 
+  return $filename  if ($UploadUrl eq '');  # No bad links if misconfigured
+  $UploadUrl .= '/'  if (substr($UploadUrl, -1, 1) ne '/');  # End with /
+  $url = $UploadUrl . $filename;
+  $html = '';
+  if (&ImageAllowed($url)) {
+    $html .= 'upload:' . $filename . '';
+  } else {
+    $html .= 'upload:' . $filename;
+  }
+  $html .= '';
+  return $html;
+}
+
+sub StoreISBN {
+  my ($num) = @_;
+
+  return &StoreRaw(&ISBNLink($num));
+}
+
+sub ISBNALink {
+  my ($num, $pre, $post, $text) = @_;
+
+  return '' . $text . '';
+}
+
+sub ISBNLink {
+  my ($rawnum) = @_;
+  my ($rawprint, $html, $num, $numSites, $i);
+
+  $num = $rawnum;
+  $rawprint = $rawnum;
+  $rawprint =~ s/ +$//;
+  $num =~ s/[- ]//g;
+  $numSites = scalar @IsbnNames;  # Number of entries
+  if ((length($num) != 10) || ($numSites < 1)) {
+    return "ISBN $rawnum";
+  }
+  $html = &ISBNALink($num, $IsbnPre[0], $IsbnPost[0], 'ISBN ' . $rawprint);
+  if ($numSites > 1) {
+    $html .= ' (';
+    $i = 1;
+    while ($i < $numSites) {
+      $html .= &ISBNALink($num, $IsbnPre[$i], $IsbnPost[$i], $IsbnNames[$i]);
+      if ($i < ($numSites - 1)) {  # Not the last site
+        $html .= ', ';
+      }
+      $i++;
+    }
+    $html .= ')';
+  }
+  $html .= " "  if ($rawnum =~ / $/);  # Add space if old ISBN had space.
+  return $html;
+}
+
+sub SplitUrlPunct {
+  my ($url) = @_;
+  my ($punct);
+
+  if ($url =~ s/\"\"$//) {
+    return ($url, "");   # Delete double-quote delimiters here
+  }
+  $punct = "";
+  if ($NewFS) {
+    ($punct) = ($url =~ /([^a-zA-Z0-9\/\x80-\xff]+)$/);
+    $url =~ s/([^a-zA-Z0-9\/\xc0-\xff]+)$//;
+  } else {
+    ($punct) = ($url =~ /([^a-zA-Z0-9\/\xc0-\xff]+)$/);
+    $url =~ s/([^a-zA-Z0-9\/\xc0-\xff]+)$//;
+  }
+  return ($url, $punct);
+}
+
+sub StripUrlPunct {
+  my ($url) = @_;
+  my ($junk);
+
+  ($url, $junk) = &SplitUrlPunct($url);
+  return $url;
+}
+
+sub WikiHeadingNumber {
+    my ($depth, $text) = @_;
+    my ($anchor, $number);
+
+    return '' unless --$depth > 0;  # Don't number H1s because it looks stupid
+    while (scalar @HeadingNumbers < ($depth-1)) {
+        push @HeadingNumbers, 1;
+        $TableOfContents .= '
     
    ';
+    }
+    if (scalar @HeadingNumbers < $depth) {
+        push @HeadingNumbers, 0;
+        $TableOfContents .= '
     
    ';
+    }
+    while (scalar @HeadingNumbers > $depth) {
+        pop @HeadingNumbers;
+        $TableOfContents .= "
    \n\n";
+    }
+    $HeadingNumbers[$#HeadingNumbers]++;
+    $number = (join '.', @HeadingNumbers) . '. ';
+    # Remove embedded links. THIS IS FRAGILE!
+    $text = &RestoreSavedText($text);
+    $text =~ s/\]*?\>\?\<\/a\>//si; # No such page syntax
+    $text =~ s/\]*?\>(.*?)\<\/a\>/$1/si;
+    # Cook anchor by canonicalizing $text.
+    $anchor = $text;
+    $anchor =~ s/\<.*?\>//g; 
+    $anchor =~ s/\W/_/g;   
+    $anchor =~ s/__+/_/g;
+    $anchor =~ s/^_//;
+    $anchor =~ s/_$//;
+    # Last ditch effort
+    $anchor = '_' . (join '_', @HeadingNumbers) unless $anchor;
+    $TableOfContents .= $number . &ScriptLink("$OpenPageName#$anchor",$text)
+                        . "
    \n
     
    ";
+    return &StoreHref(" name=\"$anchor\"") . $number;
+}
+
+sub WikiHeading {
+  my ($pre, $depth, $text) = @_;
+
+  $depth = length($depth);
+  $depth = 6  if ($depth > 6);
+  $text =~ s/^\s*#\s+/&WikiHeadingNumber($depth,$')/e; # $' == $POSTMATCH
+  return $pre . "$text\n";
+}
+
+# ==== Difference markup and HTML ====
+sub GetDiffHTML {
+  my ($diffType, $id, $revOld, $revNew, $newText) = @_;
+  my ($html, $diffText, $diffTextTwo, $priorName, $links, $usecomma);
+  my ($major, $minor, $author, $useMajor, $useMinor, $useAuthor, $cacheName);
+
+  $links = "(";
+  $usecomma = 0;
+  $major  = &ScriptLinkDiff(1, $id, T('major diff'), "");
+  $minor  = &ScriptLinkDiff(2, $id, T('minor diff'), "");
+  $author = &ScriptLinkDiff(3, $id, T('author diff'), "");
+  $useMajor  = 1;
+  $useMinor  = 1;
+  $useAuthor = 1;
+  $diffType = &GetParam("defaultdiff", 1)  if ($diffType == 4);
+  if ($diffType == 1) {
+    $priorName = T('major');
+    $cacheName = 'major';
+    $useMajor  = 0;
+  } elsif ($diffType == 2) {
+    $priorName = T('minor');
+    $cacheName = 'minor';
+    $useMinor  = 0;
+  } elsif ($diffType == 3) {
+    $priorName = T('author');
+    $cacheName = 'author';
+    $useAuthor = 0;
+  }
+  if ($revOld ne "") {
+    # Note: OpenKeptRevisions must have been done by caller.
+    # Eventually optimize if same as cached revision
+    $diffText = &GetKeptDiff($newText, $revOld, 1);  # 1 = get lock
+    if ($diffText eq "") {
+      $diffText = T('(The revisions are identical or unavailable.)');
+    }
+  } else {
+    $diffText  = &GetCacheDiff($cacheName);
+  }
+  $useMajor  = 0  if ($useMajor  && ($diffText eq &GetCacheDiff("major")));
+  $useMinor  = 0  if ($useMinor  && ($diffText eq &GetCacheDiff("minor")));
+  $useAuthor = 0  if ($useAuthor && ($diffText eq &GetCacheDiff("author")));
+  $useMajor  = 0  if ((!defined(&GetPageCache('oldmajor'))) ||
+                      (&GetPageCache("oldmajor") < 1));
+  $useAuthor = 0  if ((!defined(&GetPageCache('oldauthor'))) ||
+                      (&GetPageCache("oldauthor") < 1));
+  if ($useMajor) {
+    $links .= $major;
+    $usecomma = 1;
+  }
+  if ($useMinor) {
+    $links .= ", "  if ($usecomma);
+    $links .= $minor;
+    $usecomma = 1;
+  }
+  if ($useAuthor) {
+    $links .= ", "  if ($usecomma);
+    $links .= $author;
+  }
+  if (!($useMajor || $useMinor || $useAuthor)) {
+    $links .= T('no other diffs');
+  }
+  $links .= ")";
+  if ((!defined($diffText)) || ($diffText eq "")) {
+    $diffText = T('No diff available.');
+  }
+  if ($revOld ne "") {
+    my $currentRevision = T('current revision');
+    $currentRevision = Ts('revision %s', $revNew) if $revNew;
+    $html = ''
+      . Tss("Difference (from revision %1 to %2)", $revOld, $currentRevision)
+      . "\n" . "$links
    " . &DiffToHTML($diffText);
+  } else {
+    if (($diffType != 2) &&
+        ((!defined(&GetPageCache("old$cacheName"))) ||
+         (&GetPageCache("old$cacheName") < 1))) {
+      $html = ''
+              . Ts('No diff available--this is the first %s revision.',
+                   $priorName) . "\n$links";
+    } else {
+      $html = ''
+              . Ts('Difference (from prior %s revision)', $priorName)
+              . "\n$links
    " . &DiffToHTML($diffText);
+    }
+  }
+  @HeadingNumbers = ();
+  $TableOfContents = '';
+  return $html;
+}
+
+sub GetCacheDiff {
+  my ($type) = @_;
+  my ($diffText);
+
+  $diffText = &GetPageCache("diff_default_$type");
+  $diffText = &GetCacheDiff('minor')  if ($diffText eq "1");
+  $diffText = &GetCacheDiff('major')  if ($diffText eq "2");
+  return $diffText;
+}
+
+# Must be done after minor diff is set and OpenKeptRevisions called
+sub GetKeptDiff {
+  my ($newText, $oldRevision, $lock) = @_;
+  my (%sect, %data, $oldText);
+
+  $oldText = "";
+  if (defined($KeptRevisions{$oldRevision})) {
+    %sect = split(/$FS2/, $KeptRevisions{$oldRevision}, -1);
+    %data = split(/$FS3/, $sect{'data'}, -1);
+    $oldText = $data{'text'};
+  }
+  return ""  if ($oldText eq "");  # Old revision not found
+  return &GetDiff($oldText, $newText, $lock);
+}
+
+sub GetDiff {
+  my ($old, $new, $lock) = @_;
+  my ($diff_out, $oldName, $newName);
+
+  &CreateDir($TempDir);
+  $oldName = "$TempDir/old_diff";
+  $newName = "$TempDir/new_diff";
+  if ($lock) {
+    &RequestDiffLock() or return "";
+    $oldName .= "_locked";
+    $newName .= "_locked";
+  }
+  &WriteStringToFile($oldName, $old);
+  &WriteStringToFile($newName, $new);
+  $diff_out = `diff $oldName $newName`;
+  &ReleaseDiffLock()  if ($lock);
+  $diff_out =~ s/\\ No newline.*\n//g;   # Get rid of common complaint.
+  # No need to unlink temp files--next diff will just overwrite.
+  return $diff_out;
+}
+
+sub DiffToHTML {
+  my ($html) = @_;
+  my ($tChanged, $tRemoved, $tAdded);
+
+  $tChanged = T('Changed:');
+  $tRemoved = T('Removed:');
+  $tAdded   = T('Added:');
+  $html =~ s/\n--+//g;
+  # Note: Need spaces before 
     to be different from diff section.
+  $html =~ s/(^|\n)(\d+.*c.*)/$1 
    $tChanged $2<\/strong>
    /g;
+  $html =~ s/(^|\n)(\d+.*d.*)/$1 
    $tRemoved $2<\/strong>
    /g;
+  $html =~ s/(^|\n)(\d+.*a.*)/$1 
    $tAdded $2<\/strong>
    /g;
+  $html =~ s/\n((<.*\n)+)/&ColorDiff($1, $DiffColor1, 0)/ge;
+  $html =~ s/\n((>.*\n)+)/&ColorDiff($1, $DiffColor2, 1)/ge;
+  return $html;
+}
+
+sub ColorDiff {
+  my ($diff, $color, $type) = @_;
+  my ($colorHtml, $classHtml);
+
+  $diff =~ s/(^|\n)[<>]/$1/g;
+  $diff = &QuoteHtml($diff);
+  # Do some of the Wiki markup rules:
+  %SaveUrl = ();
+  %SaveNumUrl = ();
+  $SaveUrlIndex = 0;
+  $SaveNumUrlIndex = 0;
+  $diff = &RemoveFS($diff);
+  $diff = &CommonMarkup($diff, 0, 1);      # No images, all patterns
+  if ($LateRules ne '') {
+    $diff = &EvalLocalRules($LateRules, $diff, 1);
+  }
+  1 while $diff =~ s/$FS(\d+)$FS/$SaveUrl{$1}/ge;   # Restore saved text
+  $diff =~ s/\r?\n/
    /g;
+  $colorHtml = '';
+  if ($color ne '') {
+    $colorHtml = " bgcolor=$color";
+  }
+  if ($type) {
+    $classHtml = ' class=wikidiffnew';
+  } else {
+    $classHtml = ' class=wikidiffold';
+  }
+  return "
    \n" . $diff
+         . "
    \n";
+}
+
+# ==== Database (Page, Section, Text, Kept, User) functions ====
+sub OpenNewPage {
+  my ($id) = @_;
+
+  %Page = ();
+  $Page{'version'} = 3;      # Data format version
+  $Page{'revision'} = 0;     # Number of edited times
+  $Page{'tscreate'} = $Now;  # Set once at creation
+  $Page{'ts'} = $Now;        # Updated every edit
+}
+
+sub OpenNewSection {
+  my ($name, $data) = @_;
+
+  %Section = ();
+  $Section{'name'} = $name;
+  $Section{'version'} = 1;      # Data format version
+  $Section{'revision'} = 0;     # Number of edited times
+  $Section{'tscreate'} = $Now;  # Set once at creation
+  $Section{'ts'} = $Now;        # Updated every edit
+  $Section{'ip'} = $ENV{REMOTE_ADDR};
+  $Section{'host'} = '';        # Updated only for real edits (can be slow)
+  $Section{'id'} = $UserID;
+  $Section{'username'} = &GetParam("username", "");
+  $Section{'data'} = $data;
+  $Page{$name} = join($FS2, %Section);  # Replace with save?
+}
+
+sub OpenNewText {
+  my ($name) = @_;  # Name of text (usually "default")
+  %Text = ();
+  if ($NewText ne '') {
+    $Text{'text'} = T($NewText);
+  } else {
+    $Text{'text'} = T('Describe the new page here.') . "\n";
+  }
+  $Text{'text'} .= "\n"  if (substr($Text{'text'}, -1, 1) ne "\n");
+  $Text{'minor'} = 0;      # Default as major edit
+  $Text{'newauthor'} = 1;  # Default as new author
+  $Text{'summary'} = '';
+  &OpenNewSection("text_$name", join($FS3, %Text));
+}
+
+sub GetPageFile {
+  my ($id) = @_;
+
+  return $PageDir . "/" . &GetPageDirectory($id) . "/$id.db";
+}
+
+sub OpenPage {
+  my ($id) = @_;
+  my ($fname, $data);
+
+  if ($OpenPageName eq $id) {
+    return;
+  }
+  %Section = ();
+  %Text = ();
+  $fname = &GetPageFile($id);
+  if (-f $fname) {
+    $data = &ReadFileOrDie($fname);
+    %Page = split(/$FS1/, $data, -1);  # -1 keeps trailing null fields
+  } else {
+    &OpenNewPage($id);
+  }
+  if ($Page{'version'} != 3) {
+    &UpdatePageVersion();
+  }
+  $OpenPageName = $id;
+}
+
+sub OpenSection {
+  my ($name) = @_;
+
+  if (!defined($Page{$name})) {
+    &OpenNewSection($name, "");
+  } else {
+    %Section = split(/$FS2/, $Page{$name}, -1);
+  }
+}
+
+sub OpenText {
+  my ($name) = @_;
+
+  if (!defined($Page{"text_$name"})) {
+    &OpenNewText($name);
+  } else {
+    &OpenSection("text_$name");
+    %Text = split(/$FS3/, $Section{'data'}, -1);
+  }
+}
+
+sub OpenDefaultText {
+  &OpenText('default');
+}
+
+# Called after OpenKeptRevisions
+sub OpenKeptRevision {
+  my ($revision) = @_;
+
+  %Section = split(/$FS2/, $KeptRevisions{$revision}, -1);
+  %Text = split(/$FS3/, $Section{'data'}, -1);
+}
+
+sub GetPageCache {
+  my ($name) = @_;
+
+  return $Page{"cache_$name"};
+}
+
+# Always call SavePage within a lock.
+sub SavePage {
+  my $file = &GetPageFile($OpenPageName);
+
+  $Page{'revision'} += 1;    # Number of edited times
+  $Page{'ts'} = $Now;        # Updated every edit
+  &CreatePageDir($PageDir, $OpenPageName);
+  &WriteStringToFile($file, join($FS1, %Page));
+}
+
+sub SaveSection {
+  my ($name, $data) = @_;
+
+  $Section{'revision'} += 1;   # Number of edited times
+  $Section{'ts'} = $Now;       # Updated every edit
+  $Section{'ip'} = $ENV{REMOTE_ADDR};
+  $Section{'id'} = $UserID;
+  $Section{'username'} = &GetParam("username", "");
+  $Section{'data'} = $data;
+  $Page{$name} = join($FS2, %Section);
+}
+
+sub SaveText {
+  my ($name) = @_;
+
+  &SaveSection("text_$name", join($FS3, %Text));
+}
+
+sub SaveDefaultText {
+  &SaveText('default');
+}
+
+sub SetPageCache {
+  my ($name, $data) = @_;
+
+  $Page{"cache_$name"} = $data;
+}
+
+sub UpdatePageVersion {
+  &ReportError(T('Bad page version (or corrupt page).'));
+}
+
+sub KeepFileName {
+  return $KeepDir . "/" . &GetPageDirectory($OpenPageName)
+         . "/$OpenPageName.kp";
+}
+
+sub SaveKeepSection {
+  my $file = &KeepFileName();
+  my $data;
+
+  return  if ($Section{'revision'} < 1);  # Don't keep "empty" revision
+  $Section{'keepts'} = $Now;
+  $data = $FS1 . join($FS2, %Section);
+  &CreatePageDir($KeepDir, $OpenPageName);
+  &AppendStringToFileLimited($file, $data, $KeepSize);
+}
+
+sub ExpireKeepFile {
+  my ($fname, $data, @kplist, %tempSection, $expirets);
+  my ($anyExpire, $anyKeep, $expire, %keepFlag, $sectName, $sectRev);
+  my ($oldMajor, $oldAuthor);
+
+  $fname = &KeepFileName();
+  return  if (!(-f $fname));
+  $data = &ReadFileOrDie($fname);
+  @kplist = split(/$FS1/, $data, -1);  # -1 keeps trailing null fields
+  return  if (length(@kplist) < 1);  # Also empty
+  shift(@kplist)  if ($kplist[0] eq "");  # First can be empty
+  return  if (length(@kplist) < 1);  # Also empty
+  %tempSection = split(/$FS2/, $kplist[0], -1);
+  if (!defined($tempSection{'keepts'})) {
+    return;  # Bad keep file
+  }
+  $expirets = $Now - ($KeepDays * 24 * 60 * 60);
+  return  if ($tempSection{'keepts'} >= $expirets);  # Nothing old enough
+  $anyExpire = 0;
+  $anyKeep   = 0;
+  %keepFlag  = ();
+  $oldMajor  = &GetPageCache('oldmajor');
+  $oldAuthor = &GetPageCache('oldauthor');
+  foreach (reverse @kplist) {
+    %tempSection = split(/$FS2/, $_, -1);
+    $sectName = $tempSection{'name'};
+    $sectRev = $tempSection{'revision'};
+    $expire = 0;
+    if ($sectName eq "text_default") {
+      if (($KeepMajor  && ($sectRev == $oldMajor)) ||
+          ($KeepAuthor && ($sectRev == $oldAuthor))) {
+        $expire = 0;
+      } elsif ($tempSection{'keepts'} < $expirets) {
+        $expire = 1;
+      }
+    } else {
+      if ($tempSection{'keepts'} < $expirets) {
+        $expire = 1;
+      }
+    }
+    if (!$expire) {
+      $keepFlag{$sectRev . "," . $sectName} = 1;
+      $anyKeep = 1;
+    } else {
+      $anyExpire = 1;
+    }
+  }
+  if (!$anyKeep) {  # Empty, so remove file
+    unlink($fname);
+    return;
+  }
+  return  if (!$anyExpire);  # No sections expired
+  open (OUT, ">$fname") or die (Ts('cant write %s', $fname) . ": $!");
+  foreach (@kplist) {
+    %tempSection = split(/$FS2/, $_, -1);
+    $sectName = $tempSection{'name'};
+    $sectRev = $tempSection{'revision'};
+    if ($keepFlag{$sectRev . "," . $sectName}) {
+      print OUT $FS1, $_;
+    }
+  }
+  close(OUT);
+}
+
+sub OpenKeptList {
+  my ($fname, $data);
+
+  @KeptList = ();
+  $fname = &KeepFileName();
+  return  if (!(-f $fname));
+  $data = &ReadFileOrDie($fname);
+  @KeptList = split(/$FS1/, $data, -1);  # -1 keeps trailing null fields
+}
+
+sub OpenKeptRevisions {
+  my ($name) = @_;  # Name of section
+  my ($fname, $data, %tempSection);
+
+  %KeptRevisions = ();
+  &OpenKeptList();
+  foreach (@KeptList) {
+    %tempSection = split(/$FS2/, $_, -1);
+    next  if ($tempSection{'name'} ne $name);
+    $KeptRevisions{$tempSection{'revision'}} = $_;
+  }
+}
+
+sub LoadUserData {
+  my ($data, $status);
+
+  %UserData = ();
+  ($status, $data) = &ReadFile(&UserDataFilename($UserID));
+  if (!$status) {
+    $UserID = 112;  # Could not open file.  Consider warning message?
+    return;
+  }
+  %UserData = split(/$FS1/, $data, -1);  # -1 keeps trailing null fields
+}
+
+sub UserDataFilename {
+  my ($id) = @_;
+
+  return ""  if ($id < 1);
+  return $UserDir . "/" . ($id % 10) . "/$id.db";
+}
+
+# ==== Misc. functions ====
+sub ReportError {
+  my ($errmsg) = @_;
+
+  print $q->header, "
    ", $errmsg, "
    ", $q->end_html;
+}
+
+sub ValidId {
+  my ($id) = @_;
+
+  if (length($id) > 120) {
+    return Ts('Page name is too long: %s', $id);
+  }
+  if ($id =~ m| |) {
+    return Ts('Page name may not contain space characters: %s', $id);
+  }
+  if ($UseSubpage) {
+    if ($id =~ m|.*/.*/|) {
+      return Ts('Too many / characters in page %s', $id);
+    }
+    if ($id =~ /^\//) {
+      return Ts('Invalid Page %s (subpage without main page)', $id);
+    }
+    if ($id =~ /\/$/) {
+      return Ts('Invalid Page %s (missing subpage name)', $id);
+    }
+  }
+  if ($FreeLinks) {
+    $id =~ s/ /_/g;
+    if (!$UseSubpage) {
+      if ($id =~ /\//) {
+        return Ts('Invalid Page %s (/ not allowed)', $id);
+      }
+    }
+    if (!($id =~ m|^$FreeLinkPattern$|)) {
+      return Ts('Invalid Page %s', $id);
+    }
+    if ($id =~ m|\.db$|) {
+      return Ts('Invalid Page %s (must not end with .db)', $id);
+    }
+    if ($id =~ m|\.lck$|) {
+      return Ts('Invalid Page %s (must not end with .lck)', $id);
+    }
+    return "";
+  } else {
+    if (!($id =~ /^$LinkPattern$/)) {
+      return Ts('Invalid Page %s', $id);
+    }
+  }
+  return "";
+}
+
+sub ValidIdOrDie {
+  my ($id) = @_;
+  my $error;
+
+  $error = &ValidId($id);
+  if ($error ne "") {
+    &ReportError($error);
+    return 0;
+  }
+  return 1;
+}
+
+sub UserCanEdit {
+  my ($id, $deepCheck) = @_;
+
+  # Optimized for the "everyone can edit" case (don't check passwords)
+  if (($id ne "") && (-f &GetLockedPageFile($id))) {
+    return 1  if (&UserIsAdmin());  # Requires more privledges
+    # Consider option for editor-level to edit these pages?
+    return 0;
+  }
+  if (!$EditAllowed) {
+    return 1  if (&UserIsEditor());
+    return 0;
+  }
+  if (-f "$DataDir/noedit") {
+    return 1  if (&UserIsEditor());
+    return 0;
+  }
+  if ($deepCheck) {   # Deeper but slower checks (not every page)
+    return 1  if (&UserIsEditor());
+    return 0  if (&UserIsBanned());
+  }
+  return 1;
+}
+
+sub UserIsBanned {
+  my ($host, $ip, $data, $status);
+
+  ($status, $data) = &ReadFile("$DataDir/banlist");
+  return 0  if (!$status);  # No file exists, so no ban
+  $data =~ s/\r//g;
+  $ip = $ENV{'REMOTE_ADDR'};
+  $host = &GetRemoteHost(0);
+  foreach (split(/\n/, $data)) {
+    next  if ((/^\s*$/) || (/^#/));  # Skip empty, spaces, or comments
+    return 1  if ($ip   =~ /$_/i);
+    return 1  if ($host =~ /$_/i);
+  }
+  return 0;
+}
+
+sub UserIsAdmin {
+  my (@pwlist, $userPassword);
+
+  return 0  if ($AdminPass eq "");
+  $userPassword = &GetParam("adminpw", "");
+  return 0  if ($userPassword eq "");
+  foreach (split(/\s+/, $AdminPass)) {
+    next  if ($_ eq "");
+    return 1  if ($userPassword eq $_);
+  }
+  return 0;
+}
+
+sub UserIsEditor {
+  my (@pwlist, $userPassword);
+
+  return 1  if (&UserIsAdmin());             # Admin includes editor
+  return 0  if ($EditPass eq "");
+  $userPassword = &GetParam("adminpw", "");  # Used for both
+  return 0  if ($userPassword eq "");
+  foreach (split(/\s+/, $EditPass)) {
+    next  if ($_ eq "");
+    return 1  if ($userPassword eq $_);
+  }
+  return 0;
+}
+
+sub UserCanUpload {
+  return 1  if (&UserIsEditor());
+  return $AllUpload;
+}
+
+sub GetLockedPageFile {
+  my ($id) = @_;
+
+  return $PageDir . "/" . &GetPageDirectory($id) . "/$id.lck";
+}
+
+sub RequestLockDir {
+  my ($name, $tries, $wait, $errorDie) = @_;
+  my ($lockName, $n);
+
+  &CreateDir($TempDir);
+  $lockName = $LockDir . $name;
+  $n = 0;
+  while (mkdir($lockName, 0555) == 0) {
+    if ($! != 17) {
+      die(Ts('can not make %s', $LockDir) . ": $!\n")  if $errorDie;
+      return 0;
+    }
+    return 0  if ($n++ >= $tries); 
+    sleep($wait);
+  }
+  return 1;
+}
+
+sub ReleaseLockDir {
+  my ($name) = @_;
+
+  rmdir($LockDir . $name);
+}
+
+sub RequestLock {
+  # 10 tries, 3 second wait, possibly die on error
+  return &RequestLockDir("main", 10, 3, $LockCrash);
+}
+
+sub ReleaseLock {
+  &ReleaseLockDir('main');
+}
+
+sub ForceReleaseLock {
+  my ($name) = @_;
+  my $forced;
+
+  # First try to obtain lock (in case of normal edit lock)
+  # 5 tries, 3 second wait, do not die on error
+  $forced = !&RequestLockDir($name, 5, 3, 0);
+  &ReleaseLockDir($name);  # Release the lock, even if we didn't get it.
+  return $forced;
+}
+
+sub RequestCacheLock {
+  # 4 tries, 2 second wait, do not die on error
+  return &RequestLockDir('cache', 4, 2, 0);
+}
+
+sub ReleaseCacheLock {
+  &ReleaseLockDir('cache');
+}
+
+sub RequestDiffLock {
+  # 4 tries, 2 second wait, do not die on error
+  return &RequestLockDir('diff', 4, 2, 0);
+}
+
+sub ReleaseDiffLock {
+  &ReleaseLockDir('diff');
+}
+
+# Index lock is not very important--just return error if not available
+sub RequestIndexLock {
+  # 1 try, 2 second wait, do not die on error
+  return &RequestLockDir('index', 1, 2, 0);
+}
+
+sub ReleaseIndexLock {
+  &ReleaseLockDir('index');
+}
+
+sub ReadFile {
+  my ($fileName) = @_;
+  my ($data);
+  local $/ = undef;   # Read complete files
+
+  if (open(IN, "<$fileName")) {
+    $data=;
+    close IN;
+    return (1, $data);
+  }
+  return (0, "");
+}
+
+sub ReadFileOrDie {
+  my ($fileName) = @_;
+  my ($status, $data);
+
+  ($status, $data) = &ReadFile($fileName);
+  if (!$status) {
+    die(Ts('Can not open %s', $fileName) . ": $!");
+  }
+  return $data;
+}
+
+sub WriteStringToFile {
+  my ($file, $string) = @_;
+
+  open (OUT, ">$file") or die(Ts('cant write %s', $file) . ": $!");
+  print OUT  $string;
+  close(OUT);
+}
+
+sub AppendStringToFile {
+  my ($file, $string) = @_;
+
+  open (OUT, ">>$file") or die(Ts('cant write %s', $file) . ": $!");
+  print OUT  $string;
+  close(OUT);
+}
+
+sub AppendStringToFileLimited {
+  my ($file, $string, $limit) = @_;
+
+  if (($limit < 1) || (((-s $file) + length($string)) <= $limit)) {
+    &AppendStringToFile($file, $string);
+  }
+}
+
+sub CreateDir {
+  my ($newdir) = @_;
+
+  mkdir($newdir, 0775)  if (!(-d $newdir));
+}
+
+sub CreatePageDir {
+  my ($dir, $id) = @_;
+  my $subdir;
+
+  &CreateDir($dir);  # Make sure main page exists
+  $subdir = $dir . "/" . &GetPageDirectory($id);
+  &CreateDir($subdir);
+  if ($id =~ m|([^/]+)/|) {
+    $subdir = $subdir . "/" . $1;
+    &CreateDir($subdir);
+  }
+}
+
+sub UpdateHtmlCache {
+  my ($id, $html) = @_;
+  my $idFile;
+
+  $idFile = &GetHtmlCacheFile($id);
+  &CreatePageDir($HtmlDir, $id);
+  if (&RequestCacheLock()) {
+    &WriteStringToFile($idFile, $html);
+    &ReleaseCacheLock();
+  }
+}
+
+sub GenerateAllPagesList {
+  my (@pages, @dirs, $id, $dir, @pageFiles, @subpageFiles, $subId);
+
+  @pages = ();
+  if ($FastGlob) {
+    # The following was inspired by the FastGlob code by Marc W. Mengel.
+    # Thanks to Bob Showalter for pointing out the improvement.
+    opendir(PAGELIST, $PageDir);
+    @dirs = readdir(PAGELIST);
+    closedir(PAGELIST);
+    @dirs = sort(@dirs);
+    foreach $dir (@dirs) {
+      next  if (substr($dir, 0, 1) eq '.');   # No ., .., or .dirs or files
+      opendir(PAGELIST, "$PageDir/$dir");
+      @pageFiles = readdir(PAGELIST);
+      closedir(PAGELIST);
+      foreach $id (@pageFiles) {
+        next  if (($id eq '.') || ($id eq '..'));
+        if (substr($id, -3) eq '.db') {
+          push(@pages, substr($id, 0, -3));
+        } elsif (substr($id, -4) ne '.lck') {
+          opendir(PAGELIST, "$PageDir/$dir/$id");
+          @subpageFiles = readdir(PAGELIST);
+          closedir(PAGELIST);
+          foreach $subId (@subpageFiles) {
+            if (substr($subId, -3) eq '.db') {
+              push(@pages, "$id/" . substr($subId, 0, -3));
+            }
+          }
+        }
+      }
+    }
+  } else {
+    # Old slow/compatible method.
+    @dirs = qw(A B C D E F G H I J K L M N O P Q R S T U V W X Y Z other);
+    foreach $dir (@dirs) {
+      if (-e "$PageDir/$dir") {  # Thanks to Tim Holt
+        while (<$PageDir/$dir/*.db $PageDir/$dir/*/*.db>) {
+          s|^$PageDir/||;
+          m|^[^/]+/(\S*).db|;
+          $id = $1;
+          push(@pages, $id);
+        }
+      }
+    }
+  }
+  return sort(@pages);
+}
+
+sub AllPagesList {
+  my ($rawIndex, $refresh, $status);
+
+  if (!$UseIndex) {
+    return &GenerateAllPagesList();
+  }
+  $refresh = &GetParam("refresh", 0);
+  if ($IndexInit && !$refresh) {
+    # Note for mod_perl: $IndexInit is reset for each query
+    # Eventually consider some timestamp-solution to keep cache?
+    return @IndexList;
+  }
+  if ((!$refresh) && (-f $IndexFile)) {
+    ($status, $rawIndex) = &ReadFile($IndexFile);
+    if ($status) {
+      %IndexHash = split(/\s+/, $rawIndex);
+      @IndexList = sort(keys %IndexHash);
+      $IndexInit = 1;
+      return @IndexList;
+    }
+    # If open fails just refresh the index
+  }
+  @IndexList = ();
+  %IndexHash = ();
+  @IndexList = &GenerateAllPagesList();
+  foreach (@IndexList) {
+    $IndexHash{$_} = 1;
+  }
+  $IndexInit = 1;  # Initialized for this run of the script
+  # Try to write out the list for future runs
+  &RequestIndexLock() or return @IndexList;
+  &WriteStringToFile($IndexFile, join(" ", %IndexHash));
+  &ReleaseIndexLock();
+  return @IndexList;
+}
+
+sub CalcDay {
+  my ($ts) = @_;
+
+  $ts += $TimeZoneOffset;
+  my ($sec, $min, $hour, $mday, $mon, $year) = localtime($ts);
+  if ($NumberDates) {
+    return ($year + 1900) . '-' . ($mon+1) . '-' . $mday;
+  }
+  return ("January", "February", "March", "April", "May", "June",
+          "July", "August", "September", "October", "November",
+          "December")[$mon]. " " . $mday . ", " . ($year+1900);
+}
+
+sub CalcTime {
+  my ($ts) = @_;
+  my ($ampm, $mytz);
+
+  $ts += $TimeZoneOffset;
+  my ($sec, $min, $hour, $mday, $mon, $year) = localtime($ts);
+  $mytz = "";
+  if (($TimeZoneOffset == 0) && ($ScriptTZ ne "")) {
+    $mytz = " " . $ScriptTZ;
+  }
+  $ampm = "";
+  if ($UseAmPm) {
+    $ampm = " am";
+    if ($hour > 11) {
+      $ampm = " pm";
+      $hour = $hour - 12;
+    }
+    $hour = 12   if ($hour == 0);
+  }
+  $min = "0" . $min   if ($min<10);
+  return $hour . ":" . $min . $ampm . $mytz;
+}
+
+sub TimeToText {
+  my ($t) = @_;
+
+  return &CalcDay($t) . " " . &CalcTime($t);
+}
+
+sub GetParam {
+  my ($name, $default) = @_;
+  my $result;
+
+  $result = $q->param($name);
+  if (!defined($result)) {
+    if (defined($UserData{$name})) {
+      $result = $UserData{$name};
+    } else {
+      $result = $default;
+    }
+  }
+  return $result;
+}
+
+sub GetHiddenValue {
+  my ($name, $value) = @_;
+
+  $q->param($name, $value);
+  return $q->hidden($name);
+}
+
+sub GetRemoteHost {
+  my ($doMask) = @_;
+  my ($rhost, $iaddr);
+
+  $rhost = $ENV{REMOTE_HOST};
+  if ($UseLookup && ($rhost eq "")) {
+    # Catch errors (including bad input) without aborting the script
+    eval 'use Socket; $iaddr = inet_aton($ENV{REMOTE_ADDR});'
+         . '$rhost = gethostbyaddr($iaddr, AF_INET)';
+  }
+  if ($rhost eq "") {
+    $rhost = $ENV{REMOTE_ADDR};
+  }
+  $rhost = &GetMaskedHost($rhost)  if ($doMask);
+  return $rhost;
+}
+
+sub FreeToNormal {
+  my ($id) = @_;
+
+  $id =~ s/ /_/g;
+  $id = ucfirst($id)  if ($UpperFirst || $FreeUpper);
+  if (index($id, '_') > -1) {  # Quick check for any space/underscores
+    $id =~ s/__+/_/g;
+    $id =~ s/^_//;
+    $id =~ s/_$//;
+    if ($UseSubpage) {
+      $id =~ s|_/|/|g;
+      $id =~ s|/_|/|g;
+    }
+  }
+  if ($FreeUpper) {
+    # Note that letters after ' are *not* capitalized
+    if ($id =~ m|[-_.,\(\)/][a-z]|) {    # Quick check for non-canonical case
+      $id =~ s|([-_.,\(\)/])([a-z])|$1 . uc($2)|ge;
+    }
+  }
+  return $id;
+}
+#END_OF_BROWSE_CODE
+
+# == Page-editing and other special-action code ========================
+$OtherCode = ""; # Comment next line to always compile (slower)
+#$OtherCode = <<'#END_OF_OTHER_CODE';
+
+sub DoOtherRequest {
+  my ($id, $action, $text, $search);
+
+  $action = &GetParam("action", "");
+  $id = &GetParam("id", "");
+  if ($action ne "") {
+    $action = lc($action);
+    if      ($action eq "edit") {
+      &DoEdit($id, 0, 0, "", 0)  if &ValidIdOrDie($id);
+    } elsif ($action eq "unlock") {
+      &DoUnlock();
+    } elsif ($action eq "index") {
+      &DoIndex();
+    } elsif ($action eq "links") {
+      &DoLinks();
+    } elsif ($action eq "maintain") {
+      &DoMaintain();
+    } elsif ($action eq "pagelock") {
+      &DoPageLock();
+    } elsif ($action eq "editlock") {
+      &DoEditLock();
+    } elsif ($action eq "editprefs") {
+      &DoEditPrefs();
+    } elsif ($action eq "editbanned") {
+      &DoEditBanned();
+    } elsif ($action eq "editlinks") {
+      &DoEditLinks();
+    } elsif ($action eq "login") {
+      &DoEnterLogin();
+    } elsif ($action eq "newlogin") {
+      $UserID = 0;
+      &DoEditPrefs();  # Also creates new ID
+    } elsif ($action eq "version") {
+      &DoShowVersion();
+    } elsif ($action eq "rss") {
+      &DoRss();
+    } elsif ($action eq "delete") {
+      &DoDeletePage($id);
+    } elsif ($UseUpload && ($action eq "upload")) {
+      &DoUpload();
+    } elsif ($action eq "maintainrc") {
+      &DoMaintainRc();
+    } elsif ($action eq "convert") {
+      &DoConvert();
+    } elsif ($action eq "trimusers") {
+      &DoTrimUsers();
+    } else {
+      &ReportError(Ts('Invalid action parameter %s', $action));
+    }
+    return;
+  }
+  if (&GetParam("edit_prefs", 0)) {
+    &DoUpdatePrefs();
+    return;
+  }
+  if (&GetParam("edit_ban", 0)) {
+    &DoUpdateBanned();
+    return;
+  }
+  if (&GetParam("enter_login", 0)) {
+    &DoLogin();
+    return;
+  }
+  if (&GetParam("edit_links", 0)) {
+    &DoUpdateLinks();
+    return;
+  }
+  if ($UseUpload && (&GetParam("upload", 0))) {
+    &SaveUpload();
+    return;
+  }
+  $search = &GetParam("search", "");
+  if (($search ne "") || (&GetParam("dosearch", "") ne "")) {
+    &DoSearch($search);
+    return;
+  } else {
+    $search = &GetParam("back","");
+    if ($search ne "") {
+      &DoBackLinks($search);
+      return;
+    }
+  }
+  # Handle posted pages
+  if (&GetParam("oldtime", "") ne "") {
+    $id = &GetParam("title", "");
+    &DoPost()  if &ValidIdOrDie($id);
+    return;
+  }
+  &ReportError(T('Invalid URL.'));
+}
+
+sub DoEdit {
+  my ($id, $isConflict, $oldTime, $newText, $preview) = @_;
+  my ($header, $editRows, $editCols, $userName, $revision, $oldText);
+  my ($summary, $isEdit, $pageTime);
+
+  if ($FreeLinks) {
+    $id = &FreeToNormal($id);  # Take care of users like Markus Lude :-)
+  }
+  if (!&UserCanEdit($id, 1)) {
+    print &GetHeader("", T('Editing Denied'), "");
+    if (&UserIsBanned()) {
+      print T('Editing not allowed: user, ip, or network is blocked.');
+      print "
    ";
+      print T('Contact the wiki administrator for more information.');
+    } else {
+      print Ts('Editing not allowed: %s is read-only.', $SiteName);
+    }
+    print &GetCommonFooter();
+    return;
+  }
+  # Consider sending a new user-ID cookie if user does not have one
+  &OpenPage($id);
+  &OpenDefaultText();
+  $pageTime = $Section{'ts'};
+  $header = Ts('Editing %s', $id);
+  # Old revision handling
+  $revision = &GetParam('revision', '');
+  $revision =~ s/\D//g;  # Remove non-numeric chars
+  if ($revision ne '') {
+    &OpenKeptRevisions('text_default');
+    if (!defined($KeptRevisions{$revision})) {
+      $revision = '';
+      # Consider better solution like error message?
+    } else {
+      &OpenKeptRevision($revision);
+      $header = Ts('Editing revision %s of ', $revision ) . $id;
+    }
+  }
+  $oldText = $Text{'text'};
+  if ($preview && !$isConflict) {
+    $oldText = $newText;
+  }
+  $editRows = &GetParam("editrows", 20);
+  $editCols = &GetParam("editcols", 65);
+  print &GetHeader('', &QuoteHtml($header), '');
+  if ($revision ne '') {
+    print "\n"
+          . Ts('Editing old revision %s.', $revision) . "  "
+    . T('Saving this page will replace the latest revision with this text.')
+          . '
    '
+  }
+  if ($isConflict) {
+    $editRows -= 10  if ($editRows > 19);
+    print "\n
    " . T('Edit Conflict!') . "
    \n";
+    if ($isConflict>1) {
+      # The main purpose of a new warning is to display more text
+      # and move the save button down from its old location.
+      print "\n
    " . T('(This is a new conflict)') . "
    \n";
+    }
+    print "
    ",
+          T('Someone saved this page after you started editing.'), " ",
+          T('The top textbox contains the saved text.'), " ",
+          T('Only the text in the top textbox will be saved.'),
+          "
    \n",
+          T('Scroll down to see your edited text.'), "
    \n";
+    print T('Last save time:'), ' ', &TimeToText($oldTime),
+          " (", T('Current time is:'), ' ', &TimeToText($Now), ")
    \n";
+  }
+  print &GetFormStart();
+  print &GetHiddenValue("title", $id), "\n",
+        &GetHiddenValue("oldtime", $pageTime), "\n",
+        &GetHiddenValue("oldconflict", $isConflict), "\n";
+  if ($revision ne "") {
+    print &GetHiddenValue("revision", $revision), "\n";
+  }
+  print &GetTextArea('text', $oldText, $editRows, $editCols);
+  $summary = &GetParam("summary", "*");
+  print "
    ", T('Summary:'),
+        $q->textfield(-name=>'summary',
+                      -default=>$summary, -override=>1,
+                      -size=>60, -maxlength=>200);
+  if (&GetParam("recent_edit") eq "on") {
+    print "
    ", $q->checkbox(-name=>'recent_edit', -checked=>1,
+                               -label=>T('This change is a minor edit.'));
+  } else {
+    print "
    ", $q->checkbox(-name=>'recent_edit',
+                               -label=>T('This change is a minor edit.'));
+  }
+  if ($EmailNotify) {
+    print "   " .
+           $q->checkbox(-name=> 'do_email_notify',
+      -label=>Ts('Send email notification that %s has been changed.', $id));
+  }
+  print "
    ";
+  if ($EditNote ne '') {
+    print T($EditNote) . '
    ';  # Allow translation
+  }
+  print $q->submit(-name=>'Save', -value=>T('Save')), "\n";
+  $userName = &GetParam("username", "");
+  if ($userName ne "") {
+    print ' (', T('Your user name is'), ' ',
+          &GetPageLink($userName) . ') ';
+  } else {
+    print ' (', Ts('Visit %s to set your user name.', &GetPrefsLink()), ') ';
+  }
+  print $q->submit(-name=>'Preview', -value=>T('Preview')), "\n";
+  if ($isConflict) {
+    print "\n
    ", T('This is the text you submitted:'),
+          "
    ",
+          &GetTextArea('newtext', $newText, $editRows, $editCols),
+          "
    \n";
+  }
+  print "
    \n";
+  if ($preview) {
+    print '
    ';
+    print "
    ", T('Preview:'), "
    \n";
+    if ($isConflict) {
+      print "",
+            T('NOTE: This preview shows the revision of the other author.'),
+            "
    \n";
+    }
+    $MainPage = $id;
+    $MainPage =~ s|/.*||;  # Only the main page name (remove subpage)
+    print &WikiToHTML($oldText) . "
    \n";
+    print "
    ", T('Preview only, not yet saved'), "
    \n";
+    print '
    ';
+  }
+  print '
    ';
+  print &GetHistoryLink($id, T('View other revisions')) . "
    \n";
+  print &GetGotoBar($id);
+  print $q->endform;
+  print '
    ';
+  print &GetMinimumFooter();
+}
+
+sub GetTextArea {
+  my ($name, $text, $rows, $cols) = @_;
+
+  if (&GetParam("editwide", 1)) {
+    return $q->textarea(-name=>$name, -default=>$text,
+                        -rows=>$rows, -columns=>$cols, -override=>1,
+                        -style=>'width:100%', -wrap=>'virtual');
+  }
+  return $q->textarea(-name=>$name, -default=>$text,
+                      -rows=>$rows, -columns=>$cols, -override=>1,
+                      -wrap=>'virtual');
+}
+
+sub DoEditPrefs {
+  my ($check, $recentName, %labels);
+
+  $recentName = $RCName;
+  $recentName =~ s/_/ /g;
+  &DoNewLogin()  if ($UserID < 400);
+  print &GetHeader('', T('Editing Preferences'), "");
+  print '
    ';
+  print &GetFormStart();
+  print GetHiddenValue("edit_prefs", 1), "\n";
+  print '' . T('User Information:') . "\n";
+  print '
    ' . Ts('Your User ID number: %s', $UserID) . "\n";
+  print '
    ' . T('UserName:') . ' ', &GetFormText('username', "", 20, 50);
+  print ' ' . T('(blank to remove, or valid page name)');
+  print '
    ' . T('Set Password:') . ' ',
+        $q->password_field(-name=>'p_password', -value=>'*', 
+                           -size=>15, -maxlength=>50),
+        ' ', T('(blank to remove password)'), '
    (',
+        T('Passwords allow sharing preferences between multiple systems.'),
+        ' ', T('Passwords are completely optional.'), ')';
+  if (($AdminPass ne '') || ($EditPass ne '')) {
+    print '
    ', T('Administrator Password:'), ' ',
+          $q->password_field(-name=>'p_adminpw', -value=>'*', 
+                             -size=>15, -maxlength=>50),
+          ' ', T('(blank to remove password)'), '
    ',
+          T('(Administrator passwords are used for special maintenance.)');
+  }
+  if ($EmailNotify) {
+    print "
    ";
+    print &GetFormCheck('notify', 1,
+          T('Include this address in the site email list.')), ' ',
+          T('(Uncheck the box to remove the address.)');
+    print '
    ', T('Email Address:'), ' ',
+          &GetFormText('email', "", 30, 60);
+  }
+  print "
    $recentName:\n";
+  print '
    ', T('Default days to display:'), ' ',
+        &GetFormText('rcdays', $RcDefault, 4, 9);
+  print "
    ", &GetFormCheck('rcnewtop', $RecentTop,
+                              T('Most recent changes on top'));
+  print "
    ", &GetFormCheck('rcall', 0,
+                              T('Show all changes (not just most recent)'));
+  %labels = (0=>T('Hide minor edits'), 1=>T('Show minor edits'),
+             2=>T('Show only minor edits'));
+  print '
    ', T('Minor edit display:'), ' ';
+  print $q->popup_menu(-name=>'p_rcshowedit',
+                       -values=>[0,1,2], -labels=>\%labels,
+                       -default=>&GetParam("rcshowedit", $ShowEdits));
+  print "
    ", &GetFormCheck('rcchangehist', 1,
+                              T('Use "changes" as link to history'));
+  if ($UseDiff) {
+    print '
    ', T('Differences:'), "\n";
+    print "
    ", &GetFormCheck('diffrclink', 1,
+                                Ts('Show (diff) links on %s', $recentName));
+    print "
    ", &GetFormCheck('alldiff', 0,
+                                T('Show differences on all pages'));
+    print "  (",  &GetFormCheck('norcdiff', 1,
+                                Ts('No differences on %s', $recentName)), ")";
+    %labels = (1=>T('Major'), 2=>T('Minor'), 3=>T('Author'));
+    print '
    ', T('Default difference type:'), ' ';
+    print $q->popup_menu(-name=>'p_defaultdiff',
+                         -values=>[1,2,3], -labels=>\%labels,
+                         -default=>&GetParam("defaultdiff", 1));
+  }
+  print '
    ', T('Misc:'), "\n";
+  # Note: TZ offset is added by TimeToText, so pre-subtract to cancel.
+  print '
    ', T('Server time:'), ' ', &TimeToText($Now-$TimeZoneOffset);
+  print '
    ', T('Time Zone offset (hours):'), ' ',
+        &GetFormText('tzoffset', 0, 4, 9);
+  print '
    ', &GetFormCheck('editwide', 1,
+                              T('Use 100% wide edit area (if supported)'));
+  print '
    ',
+        T('Edit area rows:'), ' ', &GetFormText('editrows', 20, 4, 4),
+        ' ', T('columns:'),   ' ', &GetFormText('editcols', 65, 4, 4);
+
+  print '
    ', &GetFormCheck('toplinkbar', 1,
+                              T('Show link bar on top'));
+  print '
    ', &GetFormCheck('linkrandom', 0,
+                              T('Add "Random Page" link to link bar'));
+  print '
    ' . T('StyleSheet URL:') . ' ',
+        &GetFormText('stylesheet', "", 30, 150);
+  print '
    ', $q->submit(-name=>'Save', -value=>T('Save')), "\n";
+  print '
    ';
+  print "
    \n";
+  print '
    ';
+  print &GetGotoBar('');
+  print $q->endform;
+  print '
    ';
+  print &GetMinimumFooter();
+}
+
+sub GetFormText {
+  my ($name, $default, $size, $max) = @_;
+  my $text = &GetParam($name, $default);
+
+  return $q->textfield(-name=>"p_$name", -default=>$text,
+                       -override=>1, -size=>$size, -maxlength=>$max);
+}
+
+sub GetFormCheck {
+  my ($name, $default, $label) = @_;
+  my $checked = (&GetParam($name, $default) > 0);
+
+  return $q->checkbox(-name=>"p_$name", -override=>1, -checked=>$checked,
+                      -label=>$label);
+}
+
+sub DoUpdatePrefs {
+  my ($username, $password, $stylesheet);
+
+  # All link bar settings should be updated before printing the header
+  &UpdatePrefCheckbox("toplinkbar");
+  &UpdatePrefCheckbox("linkrandom");
+  print &GetHeader('',T('Saving Preferences'), '');
+  print '
    ';
+  if ($UserID < 1001) {
+    print '',
+          Ts('Invalid UserID %s, preferences not saved.', $UserID), '';
+    if ($UserID == 111) {
+      print '
    ',
+            T('(Preferences require cookies, but no cookie was sent.)');
+    }
+    print &GetCommonFooter();
+    return;
+  }
+  $username = &GetParam("p_username",  "");
+  if ($FreeLinks) {
+    $username =~ s/^\[\[(.+)\]\]/$1/;  # Remove [[ and ]] if added
+    $username =  &FreeToNormal($username);
+    $username =~ s/_/ /g;
+  }
+  if ($username eq "") {
+    print T('UserName removed.'), '
    ';
+    undef $UserData{'username'};
+  } elsif ((!$FreeLinks) && (!($username =~ /^$LinkPattern$/))) {
+    print Ts('Invalid UserName %s: not saved.', $username), "
    \n";
+  } elsif ($FreeLinks && (!($username =~ /^$FreeLinkPattern$/))) {
+    print Ts('Invalid UserName %s: not saved.', $username), "
    \n";
+  } elsif (length($username) > 50) {  # Too long
+    print T('UserName must be 50 characters or less. (not saved)'), "
    \n";
+  } else {
+    print Ts('UserName %s saved.', $username), '
    ';
+    $UserData{'username'} = $username;
+  }
+  $password = &GetParam("p_password",  "");
+  if ($password eq "") {
+    print T('Password removed.'), '
    ';
+    undef $UserData{'password'};
+  } elsif ($password ne "*") {
+    print T('Password changed.'), '
    ';
+    $UserData{'password'} = $password;
+  }
+  if (($AdminPass ne "") || ($EditPass ne "")) {
+    $password = &GetParam("p_adminpw",  "");
+    if ($password eq "") {
+      print T('Administrator password removed.'), '
    ';
+      undef $UserData{'adminpw'};
+    } elsif ($password ne "*") {
+      print T('Administrator password changed.'), '
    ';
+      $UserData{'adminpw'} = $password;
+      if (&UserIsAdmin()) {
+        print T('User has administrative abilities.'), '
    ';
+      } elsif (&UserIsEditor()) {
+        print T('User has editor abilities.'), '
    ';
+      } else {
+        print T('User does not have administrative abilities.'), ' ',
+              T('(Password does not match administrative password(s).)'),
+              '
    ';
+      }
+    }
+  }
+  if ($EmailNotify) {
+    &UpdatePrefCheckbox("notify");
+    &UpdateEmailList();
+  }
+  &UpdatePrefNumber("rcdays", 0, 0, 999999);
+  &UpdatePrefCheckbox("rcnewtop");
+  &UpdatePrefCheckbox("rcall");
+  &UpdatePrefCheckbox("rcchangehist");
+  &UpdatePrefCheckbox("editwide");
+  if ($UseDiff) {
+    &UpdatePrefCheckbox("norcdiff");
+    &UpdatePrefCheckbox("diffrclink");
+    &UpdatePrefCheckbox("alldiff");
+    &UpdatePrefNumber("defaultdiff", 1, 1, 3);
+  }
+  &UpdatePrefNumber("rcshowedit", 1, 0, 2);
+  &UpdatePrefNumber("tzoffset", 0, -999, 999);
+  &UpdatePrefNumber("editrows", 1, 1, 999);
+  &UpdatePrefNumber("editcols", 1, 1, 999);
+  print T('Server time:'), ' ', &TimeToText($Now-$TimeZoneOffset), '
    ';
+  $TimeZoneOffset = &GetParam("tzoffset", 0) * (60 * 60);
+  print T('Local time:'), ' ', &TimeToText($Now), '
    ';
+  $stylesheet = &GetParam('p_stylesheet', '');
+  if ($stylesheet eq '') {
+    if (&GetParam('stylesheet', '') ne '') {
+      print T('StyleSheet URL removed.'), '
    ';
+    }
+    undef $UserData{'stylesheet'};
+  } else {
+    $stylesheet =~ s/[">]//g;  # Remove characters that would cause problems
+    $UserData{'stylesheet'} = $stylesheet;
+    print T('StyleSheet setting saved.'), '
    ';
+  }
+  &SaveUserData();
+  print '', T('Preferences saved.'), '';
+  print &GetCommonFooter();
+}
+
+# add or remove email address from preferences to $EmailFile
+sub UpdateEmailList {
+  my (@old_emails);
+
+  local $/ = "\n";  # don't slurp whole files in this sub.
+  if (my $new_email = $UserData{'email'} = &GetParam("p_email", "")) {
+    my $notify = $UserData{'notify'};
+    if (-f $EmailFile) {
+      open(NOTIFY, $EmailFile)
+        or die(Ts('Could not read from %s:', $EmailFile) . " $!\n");
+      @old_emails = ;
+      close(NOTIFY);
+    } else {
+      @old_emails = ();
+    }
+    my $already_in_list = grep /$new_email/, @old_emails;
+    if ($notify and (not $already_in_list)) {
+      &RequestLock() or die(T('Could not get mail lock'));
+      if (!open(NOTIFY, ">>$EmailFile")) {
+        &ReleaseLock();  # Don't leave hangling locks
+        die(Ts('Could not append to %s:', $EmailFile) . " $!\n");
+      }
+      print NOTIFY $new_email, "\n";
+      close(NOTIFY);
+      &ReleaseLock();
+    }
+    elsif ((not $notify) and $already_in_list) {
+      &RequestLock() or die(T('Could not get mail lock'));
+      if (!open(NOTIFY, ">$EmailFile")) {
+        &ReleaseLock();
+        die(Ts('Could not overwrite %s:', "$EmailFile") . " $!\n");
+      }
+      foreach (@old_emails) {
+        print NOTIFY "$_" unless /$new_email/;
+      }
+      close(NOTIFY);
+      &ReleaseLock();
+    }
+  }
+}
+
+sub UpdatePrefCheckbox {
+  my ($param) = @_;
+  my $temp = &GetParam("p_$param", "*");
+
+  $UserData{$param} = 1  if ($temp eq "on");
+  $UserData{$param} = 0  if ($temp eq "*");
+  # It is possible to skip updating by using another value, like "2"
+}
+
+sub UpdatePrefNumber {
+  my ($param, $integer, $min, $max) = @_;
+  my $temp = &GetParam("p_$param", "*");
+
+  return  if ($temp eq "*");
+  $temp =~ s/[^-\d\.]//g;
+  $temp =~ s/\..*//  if ($integer);
+  return  if ($temp eq "");
+  return  if (($temp < $min) || ($temp > $max));
+  $UserData{$param} = $temp;
+}
+
+sub DoIndex {
+  print &GetHeader('', T('Index of all pages'), '');
+  print '
    ';
+  &PrintPageList(&AllPagesList());
+  print &GetCommonFooter();
+}
+
+# Create a new user file/cookie pair
+sub DoNewLogin {
+  # Consider warning if cookie already exists
+  # (maybe use "replace=1" parameter)
+  &CreateUserDir();
+  $SetCookie{'id'} = &GetNewUserId();
+  $SetCookie{'randkey'} = int(rand(1000000000));
+  $SetCookie{'rev'} = 1;
+  %UserCookie = %SetCookie;
+  $UserID = $SetCookie{'id'};
+  # The cookie will be transmitted in the next header
+  %UserData = %UserCookie;
+  $UserData{'createtime'} = $Now;
+  $UserData{'createip'} = $ENV{REMOTE_ADDR};
+  &SaveUserData();
+}
+
+sub DoEnterLogin {
+  print &GetHeader('', T('Login'), "");
+  print &GetFormStart();
+  print &GetHiddenValue('enter_login', 1), "\n";
+  print '
    ', T('User ID number:'), ' ',
+        $q->textfield(-name=>'p_userid', -value=>'',
+                      -size=>15, -maxlength=>50);
+  print '
    ', T('Password:'), ' ',
+        $q->password_field(-name=>'p_password', -value=>'', 
+                           -size=>15, -maxlength=>50);
+  print '
    ', $q->submit(-name=>'Login', -value=>T('Login')), "\n";
+  print "
    \n";
+  print &GetGotoBar('');
+  print $q->endform;
+  print &GetMinimumFooter();
+}
+
+sub DoLogin {
+  my ($uid, $password, $success);
+
+  $success = 0;
+  $uid = &GetParam("p_userid", "");
+  $uid =~ s/\D//g;
+  $password = &GetParam("p_password",  "");
+  if (($uid > 199) && ($password ne "") && ($password ne "*")) {
+    $UserID = $uid;
+    &LoadUserData();
+    if ($UserID > 199) {
+      if (defined($UserData{'password'}) &&
+          ($UserData{'password'} eq $password)) {
+        $SetCookie{'id'} = $uid;
+        $SetCookie{'randkey'} = $UserData{'randkey'};
+        $SetCookie{'rev'} = 1;
+        $success = 1;
+      }
+    }
+  }
+  print &GetHeader('', T('Login Results'), '');
+  if ($success) {
+    print Ts('Login for user ID %s complete.', $uid);
+  } else {
+    print Ts('Login for user ID %s failed.', $uid);
+  }
+  print "
    \n";
+  print &GetGotoBar('');
+  print $q->endform;
+  print &GetMinimumFooter();
+}
+
+sub GetNewUserId {
+  my ($id);
+
+  $id = $StartUID;
+  while (-f &UserDataFilename($id+1000)) {
+    $id += 1000;
+  }
+  while (-f &UserDataFilename($id+100)) {
+    $id += 100;
+  }
+  while (-f &UserDataFilename($id+10)) {
+    $id += 10;
+  }
+  &RequestLock() or die(T('Could not get user-ID lock'));
+  while (-f &UserDataFilename($id)) {
+    $id++;
+  }
+  &WriteStringToFile(&UserDataFilename($id), "lock");  # reserve the ID
+  &ReleaseLock();
+  return $id;
+}
+
+# Consider user-level lock?
+sub SaveUserData {
+  my ($userFile, $data);
+
+  &CreateUserDir();
+  $userFile = &UserDataFilename($UserID);
+  $data = join($FS1, %UserData);
+  &WriteStringToFile($userFile, $data);
+}
+
+sub CreateUserDir {
+  my ($n, $subdir);
+
+  if (!(-d "$UserDir/0")) {
+    &CreateDir($UserDir);
+
+    foreach $n (0..9) {
+      $subdir = "$UserDir/$n";
+      &CreateDir($subdir);
+    }
+  }
+}
+
+sub DoSearch {
+  my ($string) = @_;
+
+  if ($string eq '') {
+    &DoIndex();
+    return;
+  }
+  print &GetHeader('', &QuoteHtml(Ts('Search for: %s', $string)), '');
+  print '
    ';
+  &PrintPageList(&SearchTitleAndBody($string));
+  print &GetCommonFooter();
+}
+
+sub DoBackLinks {
+  my ($string) = @_;
+
+  print &GetHeader('', &QuoteHtml(Ts('Backlinks for: %s', $string)), '');
+  print '
    ';
+  # At this time the backlinks are mostly a renamed search.
+  # An initial attempt to match links only failed on subpages and free links.
+  # Escape some possibly problematic characters:
+  $string =~ s/([-'().,])/\\$1/g; 
+  &PrintPageList(&SearchTitleAndBody($string));
+  print &GetCommonFooter();
+}
+
+sub PrintPageList {
+  my $pagename;
+
+  print "
    ", Ts('%s pages found:', ($#_ + 1)), "
    \n";
+  foreach $pagename (@_) {
+    print ".... "  if ($pagename =~ m|/|);
+    print &GetPageLink($pagename), "
    \n";
+  }
+}
+
+sub DoLinks {
+  print &GetHeader('', &QuoteHtml(T('Full Link List')), '');
+  print "
    \n\n\n\n\n";  # Extra lines to get below the logo
+  &PrintLinkList(&GetFullLinkList());
+  print "
    \n";
+  print &GetMinimumFooter();
+}
+
+sub PrintLinkList {
+  my ($pagelines, $page, $names, $editlink);
+  my ($link, $extra, @links, %pgExists);
+
+  %pgExists = ();
+  foreach $page (&AllPagesList()) {
+    $pgExists{$page} = 1;
+  }
+  $names = &GetParam("names", 1);
+  $editlink = &GetParam("editlink", 0);
+  foreach $pagelines (@_) {
+    @links = ();
+    foreach $page (split(' ', $pagelines)) {
+      if ($page =~ /\:/) {  # URL or InterWiki form
+        if ($page =~ /$UrlPattern/) {
+          ($link, $extra) = &UrlLink($page, 0);  # No images
+        } else {
+          ($link, $extra) = &InterPageLink($page, 0);  # No images
+        }
+      } else {
+        if ($pgExists{$page}) {
+          $link = &GetPageLink($page);
+        } else {
+          $link = $page;
+          if ($editlink) {
+            $link .= &GetEditLink($page, "?");
+          }
+        }
+      }
+      push(@links, $link);
+    }
+    if (!$names) {
+      shift(@links);
+    }
+    print join(' ', @links), "\n";
+  }
+}
+
+sub GetFullLinkList {
+  my ($name, $unique, $sort, $exists, $empty, $link, $search);
+  my ($pagelink, $interlink, $urllink);
+  my (@found, @links, @newlinks, @pglist, %pgExists, %seen);
+
+  $unique = &GetParam("unique", 1);
+  $sort = &GetParam("sort", 1);
+  $pagelink = &GetParam("page", 1);
+  $interlink = &GetParam("inter", 0);
+  $urllink = &GetParam("url", 0);
+  $exists = &GetParam("exists", 2);
+  $empty = &GetParam("empty", 0);
+  $search = &GetParam("search", "");
+  if (($interlink == 2) || ($urllink == 2)) {
+    $pagelink = 0;
+  }
+  %pgExists = ();
+  @pglist = &AllPagesList();
+  foreach $name (@pglist) {
+    $pgExists{$name} = 1;
+  }
+  %seen = ();
+  foreach $name (@pglist) {
+    @newlinks = ();
+    if ($unique != 2) {
+      %seen = ();
+    }
+    @links = &GetPageLinks($name, $pagelink, $interlink, $urllink);
+    foreach $link (@links) {
+      $seen{$link}++;
+      if (($unique > 0) && ($seen{$link} != 1)) {
+        next;
+      }
+      if (($exists == 0) && ($pgExists{$link} == 1)) {
+        next;
+      }
+      if (($exists == 1) && ($pgExists{$link} != 1)) {
+        next;
+      }
+      if (($search ne "") && !($link =~ /$search/)) {
+        next;
+      }
+      push(@newlinks, $link);
+    }
+    @links = @newlinks;
+    if ($sort) {
+      @links = sort(@links);
+    }
+    unshift (@links, $name);
+    if ($empty || ($#links > 0)) {  # If only one item, list is empty.
+      push(@found, join(' ', @links));
+    }
+  }
+  return @found;
+}
+
+sub GetPageLinks {
+  my ($name, $pagelink, $interlink, $urllink) = @_;
+  my ($text, @links);
+
+  @links = ();
+  &OpenPage($name);
+  &OpenDefaultText();
+  $text = $Text{'text'};
+  $text =~ s/((.|\n)*?)<\/html>/ /ig;
+  $text =~ s/(.|\n)*?\<\/nowiki>/ /ig;
+  $text =~ s/
    (.|\n)*?\<\/pre>/ /ig;
+  $text =~ s/(.|\n)*?\<\/code>/ /ig;
+  if ($interlink) {
+    $text =~ s/''+/ /g;  # Quotes can adjacent to inter-site links
+    $text =~ s/$InterLinkPattern/push(@links, &StripUrlPunct($1)), ' '/ge;
+  } else {
+    $text =~ s/$InterLinkPattern/ /g;
+  }
+  if ($urllink) {
+    $text =~ s/''+/ /g;  # Quotes can adjacent to URLs
+    $text =~ s/$UrlPattern/push(@links, &StripUrlPunct($1)), ' '/ge;
+  } else {
+    $text =~ s/$UrlPattern/ /g;
+  }
+  if ($pagelink) {
+    if ($FreeLinks) {
+      my $fl = $FreeLinkPattern;
+      $text =~ s/\[\[$fl\|[^\]]+\]\]/push(@links, &FreeToNormal($1)), ' '/ge;
+      $text =~ s/\[\[$fl\]\]/push(@links, &FreeToNormal($1)), ' '/ge;
+    }
+    if ($WikiLinks) {
+      $text =~ s/$LinkPattern/push(@links, &StripUrlPunct($1)), ' '/ge;
+    }
+  }
+  return @links;
+}
+
+sub DoPost {
+  my ($editDiff, $old, $newAuthor, $pgtime, $oldrev, $preview, $user);
+  my $string = &GetParam("text", undef);
+  my $id = &GetParam("title", "");
+  my $summary = &GetParam("summary", "");
+  my $oldtime = &GetParam("oldtime", "");
+  my $oldconflict = &GetParam("oldconflict", "");
+  my $isEdit = 0;
+  my $editTime = $Now;
+  my $authorAddr = $ENV{REMOTE_ADDR};
+
+  if (!&UserCanEdit($id, 1)) {
+    # This is an internal interface--we don't need to explain
+    &ReportError(Ts('Editing not allowed for %s.', $id));
+    return;
+  }
+  if (($id eq   'SampleUndefinedPage')    ||
+      ($id eq T('SampleUndefinedPage'))   ||
+      ($id eq   'Sample_Undefined_Page')  ||
+      ($id eq T('Sample_Undefined_Page'))) {
+    &ReportError(Ts('%s cannot be defined.', $id));
+    return;
+  }
+  $string  = &RemoveFS($string);
+  $summary = &RemoveFS($summary);
+  $summary =~ s/[\r\n]//g;
+  if (length($summary) > 300) {  # Too long (longer than form allows)
+    $summary = substr($summary, 0, 300);
+  }
+  # Add a newline to the end of the string (if it doesn't have one)
+  $string .= "\n"  if (!($string =~ /\n$/));
+  # Lock before getting old page to prevent races
+  # Consider extracting lock section into sub, and eval-wrap it?
+  # (A few called routines can die, leaving locks.)
+  if ($LockCrash) {
+    &RequestLock() or die(T('Could not get editing lock'));
+  } else {
+    if (!&RequestLock()) {
+      &ForceReleaseLock('main');
+    }
+    # Clear all other locks.
+    &ForceReleaseLock('cache');
+    &ForceReleaseLock('diff');
+    &ForceReleaseLock('index');
+  }
+  &OpenPage($id);
+  &OpenDefaultText();
+  $old = $Text{'text'};
+  $oldrev = $Section{'revision'};
+  $pgtime = $Section{'ts'};
+  $preview = 0;
+  $preview = 1  if (&GetParam("Preview", "") ne "");
+  if (!$preview && ($old eq $string)) {  # No changes (ok for preview)
+    &ReleaseLock();
+    &ReBrowsePage($id, "", 1);
+    return;
+  }
+  if (($UserID > 399) || ($Section{'id'} > 399))  {
+    $newAuthor = ($UserID ne $Section{'id'});       # known user(s)
+  } else {
+    $newAuthor = ($Section{'ip'} ne $authorAddr);  # hostname fallback
+  }
+  $newAuthor = 1  if ($oldrev == 0);  # New page
+  $newAuthor = 0  if (!$newAuthor);   # Standard flag form, not empty
+  # Detect editing conflicts and resubmit edit
+  if (($oldrev > 0) && ($newAuthor && ($oldtime != $pgtime))) {
+    &ReleaseLock();
+    if ($oldconflict > 0) {  # Conflict again...
+      &DoEdit($id, 2, $pgtime, $string, $preview);
+    } else {
+      &DoEdit($id, 1, $pgtime, $string, $preview);
+    }
+    return;
+  }
+  if ($preview) {
+    &ReleaseLock();
+    &DoEdit($id, 0, $pgtime, $string, 1);
+    return;
+  }
+  $user = &GetParam("username", "");
+  # If the person doing editing chooses, send out email notification
+  if ($EmailNotify) {
+    &EmailNotify($id, $user) if &GetParam("do_email_notify", "") eq 'on';
+  }
+  if (&GetParam("recent_edit", "") eq 'on') {
+    $isEdit = 1;
+  }
+  if (!$isEdit) {
+    &SetPageCache('oldmajor', $Section{'revision'});
+  }
+  if ($newAuthor) {
+    &SetPageCache('oldauthor', $Section{'revision'});
+  }
+  &SaveKeepSection();
+  &ExpireKeepFile();
+  if ($UseDiff) {
+    &UpdateDiffs($id, $editTime, $old, $string, $isEdit, $newAuthor);
+  }
+  $Text{'text'} = $string;
+  $Text{'minor'} = $isEdit;
+  $Text{'newauthor'} = $newAuthor;
+  $Text{'summary'} = $summary;
+  $Section{'host'} = &GetRemoteHost(1);
+  &SaveDefaultText(); 
+  &SavePage();
+  &WriteRcLog($id, $summary, $isEdit, $editTime, $Section{'revision'},
+              $user, $Section{'host'});
+  if ($UseCache) {
+    &UnlinkHtmlCache($id);         # Old cached copy is invalid
+    if ($Page{'revision'} < 2) {   # If this is a new page...
+      &NewPageCacheClear($id);     # ...uncache pages linked to this one.
+    }
+  }
+  if ($UseIndex && ($Page{'revision'} == 1)) {
+    unlink($IndexFile);  # Regenerate index on next request
+  }
+  &ReleaseLock();
+  &ReBrowsePage($id, "", 1);
+}
+
+sub UpdateDiffs {
+  my ($id, $editTime, $old, $new, $isEdit, $newAuthor) = @_;
+  my ($editDiff, $oldMajor, $oldAuthor);
+
+  $editDiff  = &GetDiff($old, $new, 0);     # 0 = already in lock
+  $oldMajor  = &GetPageCache('oldmajor');
+  $oldAuthor = &GetPageCache('oldauthor');
+  if ($UseDiffLog) {
+    &WriteDiff($id, $editTime, $editDiff);
+  }
+  &SetPageCache('diff_default_minor', $editDiff);
+  if ($isEdit || !$newAuthor) {
+    &OpenKeptRevisions('text_default');
+  }
+  if (!$isEdit) {
+    &SetPageCache('diff_default_major', "1");
+  } else {
+    &SetPageCache('diff_default_major', &GetKeptDiff($new, $oldMajor, 0));
+  }
+  if ($newAuthor) {
+    &SetPageCache('diff_default_author', "1");
+  } elsif ($oldMajor == $oldAuthor) {
+    &SetPageCache('diff_default_author', "2");
+  } else {
+    &SetPageCache('diff_default_author', &GetKeptDiff($new, $oldAuthor, 0));
+  }
+}
+
+# Translation note: the email messages are still sent in English
+# Send an email message.
+sub SendEmail {
+  my ($to, $from, $reply, $subject, $message) = @_;
+
+  # sendmail options:
+  #    -odq : send mail to queue (i.e. later when convenient)
+  #    -oi  : do not wait for "." line to exit
+  #    -t   : headers determine recipient.
+  open (SENDMAIL, "| $SendMail -oi -t ") or die "Can't send email: $!\n";
+  print SENDMAIL <<"EOF";
+From: $from
+To: $to
+Reply-to: $reply
+Subject: $subject\n
+$message
+EOF
+  close(SENDMAIL) or warn "sendmail didn't close nicely";
+}
+
+## Email folks who want to know a note that a page has been modified. - JimM.
+sub EmailNotify {
+  local $/ = "\n";   # don't slurp whole files in this sub.
+
+  if ($EmailNotify) {
+    my ($id, $user) = @_;
+    if ($user) {
+      $user = " by $user";
+    }
+    my $address;
+    return  if (!-f $EmailFile);  # No notifications yet
+    open(EMAIL, $EmailFile)
+      or die "Can't open $EmailFile: $!\n";
+    $address = join ",", ;
+    $address =~ s/\n//g;
+    close(EMAIL);
+    my $home_url = $q->url();
+    my $page_url = $home_url . "?$id";
+    my $editors_summary = $q->param("summary");
+    if (($editors_summary eq "*") or ($editors_summary eq "")){
+      $editors_summary = "";
+    }
+    else {
+      $editors_summary = "\n Summary: $editors_summary";
+    }
+    my $content = <<"END_MAIL_CONTENT";
+
+ The $SiteName page $id at
+   $page_url
+ has been changed$user to revision $Page{revision}. $editors_summary
+
+ (Replying to this notification will
+  send email to the entire mailing list,
+  so only do that if you mean to.
+
+  To remove yourself from this list, visit
+  ${home_url}?action=editprefs .)
+END_MAIL_CONTENT
+    my $subject = "The $id page at $SiteName has been changed.";
+    # I'm setting the "reply-to" field to be the same as the "to:" field
+    # which seems appropriate for a mailing list, especially since the
+    # $EmailFrom string needn't be a real email address.
+    &SendEmail($address, $EmailFrom, $address, $subject, $content);
+  }
+}
+
+sub SearchTitleAndBody {
+  my ($string) = @_;
+  my ($name, $freeName, @found);
+
+  foreach $name (&AllPagesList()) {
+    &OpenPage($name);
+    &OpenDefaultText();
+    if (($Text{'text'} =~ /$string/i) || ($name =~ /$string/i)) {
+      push(@found, $name);
+    } elsif ($FreeLinks && ($name =~ m/_/)) {
+      $freeName = $name;
+      $freeName =~ s/_/ /g;
+      if ($freeName =~ /$string/i) {
+        push(@found, $name);
+      }
+    }
+  }
+  return @found;
+}
+
+sub SearchBody {
+  my ($string) = @_;
+  my ($name, @found);
+
+  foreach $name (&AllPagesList()) {
+    &OpenPage($name);
+    &OpenDefaultText();
+    if ($Text{'text'} =~ /$string/i){
+      push(@found, $name);
+    }
+  }
+  return @found;
+}
+
+sub UnlinkHtmlCache {
+  my ($id) = @_;
+  my $idFile;
+
+  $idFile = &GetHtmlCacheFile($id);
+  if (-f $idFile) {
+    unlink($idFile);
+  }
+}
+
+sub NewPageCacheClear {
+  my ($id) = @_;
+  my $name;
+
+  return if (!$UseCache);
+  $id =~ s|.+/|/|;  # If subpage, search for just the subpage
+  # The following code used to search the body for the $id
+  foreach $name (&AllPagesList()) {  # Remove all to be safe
+    &UnlinkHtmlCache($name);
+  }
+}
+
+# Note: all diff and recent-list operations should be done within locks.
+sub DoUnlock {
+  my $LockMessage = T('Normal Unlock.');
+
+  print &GetHeader('', T('Removing edit lock'), '');
+  print '
    ', T('This operation may take several seconds...'), "\n";
+  if (&ForceReleaseLock('main')) {
+    $LockMessage = T('Forced Unlock.');
+  }
+  &ForceReleaseLock('cache');
+  &ForceReleaseLock('diff');
+  &ForceReleaseLock('index');
+  print "
    $LockMessage
    ";
+  print &GetCommonFooter();
+}
+
+# Note: all diff and recent-list operations should be done within locks.
+sub WriteRcLog {
+  my ($id, $summary, $isEdit, $editTime, $revision, $name, $rhost) = @_;
+  my ($extraTemp, %extra);
+
+  %extra = ();
+  $extra{'id'} = $UserID          if ($UserID > 0);
+  $extra{'name'} = $name          if ($name ne "");
+  $extra{'revision'} = $revision  if ($revision ne "");
+  $extraTemp = join($FS2, %extra);
+  # The two fields at the end of a line are kind and extension-hash
+  my $rc_line = join($FS3, $editTime, $id, $summary,
+                     $isEdit, $rhost, "0", $extraTemp);
+  if (!open(OUT, ">>$RcFile")) {
+    die(Ts('%s log error:', $RCName) . " $!");
+  }
+  print OUT  $rc_line . "\n";
+  close(OUT);
+}
+
+sub WriteDiff {
+  my ($id, $editTime, $diffString) = @_;
+
+  open (OUT, ">>$DataDir/diff_log") or die(T('can not write diff_log'));
+  print OUT  "------\n" . $id . "|" . $editTime . "\n";
+  print OUT  $diffString;
+  close(OUT);
+}
+
+# Actions are vetoable if someone edits the page before
+# the keep expiry time. For example, page deletion. If
+# no one edits the page by the time the keep expiry time
+# elapses, then no one has vetoed the last action, and the
+# action is accepted.
+# See http://www.usemod.com/cgi-bin/mb.pl?PageDeletion
+sub ProcessVetos {
+  my ($expirets);
+
+  $expirets = $Now - ($KeepDays * 24 * 60 * 60);
+  return (0, T('(done)'))  unless $Page{'ts'} < $expirets;
+  if ($DeletedPage && $Text{'text'} =~ /^\s*$DeletedPage\W*?(\n|$)/o) {
+    &DeletePage($OpenPageName, 1, 1);
+    return (1, T('(deleted)'));
+  }
+  if ($ReplaceFile && $Text{'text'} =~ /^\s*$ReplaceFile\:\s*(\S+)/o) {
+    my $fname = $1;
+    # Only replace an allowed, existing file.
+    if ((grep {$_ eq $fname} @ReplaceableFiles) && -e $fname) {
+       if ($Text{'text'} =~ /.*
    .*?\n(.*?)\s*<\/pre>/ims)
+       {
+         my $string = $1;
+         $string =~ s/\r\n/\n/gms;
+         open (OUT, ">$fname") or return 0;
+         print OUT $string;
+         close OUT;
+         return (0, T('(replaced)'));
+      }
+    }
+  }
+  return (0, T('(done)'));
+}
+
+sub DoMaintain {
+  my ($name, $fname, $data, $message, $status);
+  print &GetHeader('', T('Maintenance on all pages'), '');
+  print "
    ";
+  $fname = "$DataDir/maintain";
+  if (!&UserIsAdmin()) {
+    if ((-f $fname) && ((-M $fname) < 0.5)) {
+      print T('Maintenance not done.'), ' ';
+      print T('(Maintenance can only be done once every 12 hours.)');
+      print ' ', T('Remove the "maintain" file or wait.');
+      print &GetCommonFooter();
+      return;
+    }
+  }
+  &RequestLock() or die(T('Could not get maintain-lock'));
+  foreach $name (&AllPagesList()) {
+    &OpenPage($name);
+    &OpenDefaultText();
+    ($status, $message) = &ProcessVetos();
+    &ExpireKeepFile() unless $status;
+    print ".... "  if ($name =~ m|/|);
+    print &GetPageLink($name);
+    print " $message
    \n";
+  }
+  &WriteStringToFile($fname, Ts('Maintenance done at %s', &TimeToText($Now)));
+  &ReleaseLock();
+  # Do any rename/deletion commands
+  # (Must be outside lock because it will grab its own lock)
+  $fname = "$DataDir/editlinks";
+  if (-f $fname) {
+    $data = &ReadFileOrDie($fname);
+    print '
    ', T('Processing rename/delete commands:'), "
    \n";
+    &UpdateLinksList($data, 1, 1);  # Always update RC and links
+    unlink("$fname.old");
+    rename($fname, "$fname.old");
+  }
+  if ($MaintTrimRc) {
+    &RequestLock() or die(T('Could not get lock for RC maintenance'));
+    $status = &TrimRc();  # Consider error messages?
+    &ReleaseLock();
+  }
+  print &GetCommonFooter();
+}
+
+# Must be called within a lock.
+# Thanks to Alex Schroeder for original code
+sub TrimRc {
+  my (@rc, @temp, $starttime, $days, $status, $data, $i, $ts);
+
+  # Determine the number of days to go back
+  $days = 0;
+  foreach (@RcDays) {
+    $days = $_  if $_ > $days;
+  }
+  $starttime = $Now - $days * 24 * 60 * 60;
+  return 1  if (!-f $RcFile);  # No work if no file exists
+  ($status, $data) = &ReadFile($RcFile);
+  if (!$status) {
+    print '
    ' . Ts('Could not open %s log file', $RCName)
+          . ": $RcFile
    "
+          . T('Error was') . ":\n
    $!\n" . '
    ';
+    return 0;
+  }
+  # Move the old stuff from rc to temp
+  @rc = split(/\n/, $data);
+  for ($i = 0; $i < @rc; $i++) {
+    ($ts) = split(/$FS3/, $rc[$i]);
+    last  if ($ts >= $starttime);
+  }
+  return 1  if ($i < 1);  # No lines to move from new to old
+  @temp = splice(@rc, 0, $i);
+  # Write new files and backups
+  if (!open(OUT, ">>$RcOldFile")) {
+    print '
    ' . Ts('Could not open %s log file', $RCName)
+          . ": $RcOldFile
    "
+          . T('Error was') . ":\n
    $!\n" . '
    ';
+    return 0;
+  }
+  print OUT  join("\n", @temp) . "\n";
+  close(OUT);
+  &WriteStringToFile($RcFile . '.old', $data);
+  $data = join("\n", @rc);
+  $data .= "\n"  if ($data ne '');  # If no entries, don't add blank line
+  &WriteStringToFile($RcFile, $data);
+  return 1;
+}
+
+sub DoMaintainRc {
+  print &GetHeader('', T('Maintaining RC log'), '');
+  return  if (!&UserIsAdminOrError());
+  &RequestLock() or die(T('Could not get lock for RC maintenance'));
+  if (&TrimRc()) {
+    print '
    ' . T('RC maintenance done.') . '
    ';
+  } else {
+    print '
    ' . T('RC maintenance not done.') . '
    ';
+  }
+  &ReleaseLock();
+  print &GetCommonFooter();
+}
+
+sub UserIsEditorOrError {
+  if (!&UserIsEditor()) {
+    print '
    ', T('This operation is restricted to site editors only...');
+    print &GetCommonFooter();
+    return 0;
+  }
+  return 1;
+}
+
+sub UserIsAdminOrError {
+  if (!&UserIsAdmin()) {
+    print '
    ', T('This operation is restricted to administrators only...');
+    print &GetCommonFooter();
+    return 0;
+  }
+  return 1;
+}
+
+sub DoEditLock {
+  my ($fname);
+
+  print &GetHeader('', T('Set or Remove global edit lock'), '');
+  return  if (!&UserIsAdminOrError());
+  $fname = "$DataDir/noedit";
+  if (&GetParam("set", 1)) {
+    &WriteStringToFile($fname, "editing locked.");
+  } else {
+    unlink($fname);
+  }
+  if (-f $fname) {
+    print '
    ', T('Edit lock created.'), '
    ';
+  } else {
+    print '
    ', T('Edit lock removed.'), '
    ';
+  }
+  print &GetCommonFooter();
+}
+
+sub DoPageLock {
+  my ($fname, $id);
+
+  print &GetHeader('', T('Set or Remove page edit lock'), '');
+  # Consider allowing page lock/unlock at editor level?
+  return  if (!&UserIsAdminOrError());
+  $id = &GetParam("id", "");
+  if ($id eq "") {
+    print '
    ', T('Missing page id to lock/unlock...');
+    return;
+  }
+  return  if (!&ValidIdOrDie($id));       # Consider nicer error?
+  $fname = &GetLockedPageFile($id);
+  if (&GetParam("set", 1)) {
+    &WriteStringToFile($fname, "editing locked.");
+  } else {
+    unlink($fname);
+  }
+  if (-f $fname) {
+    print '
    ', Ts('Lock for %s created.', $id), '
    ';
+  } else {
+    print '
    ', Ts('Lock for %s removed.', $id), '
    ';
+  }
+  print &GetCommonFooter();
+}
+
+sub DoEditBanned {
+  my ($banList, $status);
+
+  print &GetHeader("", "Editing Banned list", "");
+  return  if (!&UserIsAdminOrError());
+  ($status, $banList) = &ReadFile("$DataDir/banlist");
+  $banList = ""  if (!$status);
+  print &GetFormStart();
+  print GetHiddenValue("edit_ban", 1), "\n";
+  print "Banned IP/network/host list:
    \n";
+  print "
    Each entry is either a commented line (starting with #), ",
+        "or a Perl regular expression (matching either an IP address or ",
+        "a hostname).  Note: To test the ban on yourself, you must ",
+        "give up your admin access (remove password in Preferences).";
+  print "
    Example:
    ",
+        "# blocks hosts ending with .foocorp.com
    ",
+        "\\.foocorp\\.com\$
    ",
+        "# blocks exact IP address
    ",
+        "^123\\.21\\.3\\.9\$
    ",
+        "# blocks whole 123.21.3.* IP network
    ",
+        "^123\\.21\\.3\\.\\d+\$
    ";
+  print &GetTextArea('banlist', $banList, 12, 50);
+  print "
    ", $q->submit(-name=>'Save'), "\n";
+  print "
    \n";
+  print &GetGotoBar("");
+  print $q->endform;
+  print &GetMinimumFooter();
+}
+
+sub DoUpdateBanned {
+  my ($newList, $fname);
+
+  print &GetHeader("", "Updating Banned list", "");
+  return  if (!&UserIsAdminOrError());
+  $fname = "$DataDir/banlist";
+  $newList = &GetParam("banlist", "#Empty file");
+  if ($newList eq "") {
+    print "
    Empty banned list or error.";
+    print "
    Resubmit with at least one space character to remove.";
+  } elsif ($newList =~ /^\s*$/s) {
+    unlink($fname);
+    print "
    Removed banned list";
+  } else {
+    &WriteStringToFile($fname, $newList);
+    print "
    Updated banned list";
+  }
+  print &GetCommonFooter();
+}
+
+# ==== Editing/Deleting pages and links ====
+sub DoEditLinks {
+  print &GetHeader("", "Editing Links", "");
+  if ($AdminDelete) {
+    return  if (!&UserIsAdminOrError());
+  } else {
+    return  if (!&UserIsEditorOrError());
+  }
+  print &GetFormStart();
+  print GetHiddenValue("edit_links", 1), "\n";
+  print "Editing/Deleting page titles:
    \n";
+  print "
    Enter one command on each line.  Commands are:
    ",
+        "!PageName -- deletes the page called PageName
    \n",
+        "=OldPageName=NewPageName -- Renames OldPageName ",
+        "to NewPageName and updates links to OldPageName.
    \n",
+        "|OldPageName|NewPageName -- Changes links to OldPageName ",
+        "to NewPageName.",
+        " (Used to rename links to non-existing pages.)
    \n",
+        "Note: page names are case-sensitive!\n";
+  print &GetTextArea('commandlist', "", 12, 50);
+  print $q->checkbox(-name=>"p_changerc", -override=>1, -checked=>1,
+                      -label=>"Edit $RCName");
+  print "
    \n";
+  print $q->checkbox(-name=>"p_changetext", -override=>1, -checked=>1,
+                      -label=>"Substitute text for rename");
+  print "
    ", $q->submit(-name=>'Edit'), "\n";
+  print "
    \n";
+  print &GetGotoBar("");
+  print $q->endform;
+  print &GetMinimumFooter();
+}
+
+sub UpdateLinksList {
+  my ($commandList, $doRC, $doText) = @_;
+
+  if ($doText) {
+    &BuildLinkIndex();
+  }
+  &RequestLock() or die T('UpdateLinksList could not get main lock');
+  unlink($IndexFile)  if ($UseIndex);
+  foreach (split(/\n/, $commandList)) {
+    s/\s+$//g;
+    next  if (!(/^[=!|]/));  # Only valid commands.
+    print "Processing $_
    \n";
+    if (/^\!(.+)/) {
+      &DeletePage($1, $doRC, $doText);
+    } elsif (/^\=(?:\[\[)?([^]=]+)(?:\]\])?\=(?:\[\[)?([^]=]+)(?:\]\])?/) {
+      &RenamePage($1, $2, $doRC, $doText);
+    } elsif (/^\|(?:\[\[)?([^]|]+)(?:\]\])?\|(?:\[\[)?([^]|]+)(?:\]\])?/) {
+      &RenameTextLinks($1, $2);
+    }
+  }
+  &NewPageCacheClear(".");  # Clear cache (needs testing?)
+  unlink($IndexFile)  if ($UseIndex);
+  &ReleaseLock();
+}
+
+sub BuildLinkIndex {
+  my (@pglist, $page, @links, $link, %seen);
+
+  @pglist = &AllPagesList();
+  %LinkIndex = ();
+  foreach $page (@pglist) {
+    &BuildLinkIndexPage($page);
+  }
+}
+
+sub BuildLinkIndexPage {
+  my ($page) = @_;
+  my (@links, $link, %seen);
+
+  @links = &GetPageLinks($page, 1, 0, 0);
+  %seen = ();
+  foreach $link (@links) {
+    if (defined($LinkIndex{$link})) {
+      if (!$seen{$link}) {
+        $LinkIndex{$link} .= " " . $page;
+      }
+    } else {
+      $LinkIndex{$link} .= " " . $page;
+    }
+    $seen{$link} = 1;
+  }
+}
+
+sub DoUpdateLinks {
+  my ($commandList, $doRC, $doText);
+
+  print &GetHeader("", T('Updating Links'), "");
+  if ($AdminDelete) {
+    return  if (!&UserIsAdminOrError());
+  } else {
+    return  if (!&UserIsEditorOrError());
+  }
+  $commandList = &GetParam("commandlist", "");
+  $doRC   = &GetParam("p_changerc", "0");
+  $doRC   = 1  if ($doRC eq "on");
+  $doText = &GetParam("p_changetext", "0");
+  $doText = 1  if ($doText eq "on");
+  if ($commandList eq "") {
+    print "
    Empty command list or error.";
+  } else {
+    &UpdateLinksList($commandList, $doRC, $doText);
+    print "
    Finished command list.";
+  }
+  print &GetCommonFooter();
+}
+
+sub EditRecentChanges {
+  my ($action, $old, $new) = @_;
+
+  &EditRecentChangesFile($RcFile,    $action, $old, $new, 1);
+  &EditRecentChangesFile($RcOldFile, $action, $old, $new, 0);
+}
+
+sub EditRecentChangesFile {
+  my ($fname, $action, $old, $new, $printError) = @_;
+  my ($status, $fileData, $errorText, $rcline, @rclist);
+  my ($outrc, $ts, $page, $junk);
+
+  ($status, $fileData) = &ReadFile($fname);
+  if (!$status) {
+    # Save error text if needed.
+    $errorText = "
    Could not open $RCName log file:"
+                 . " $fname
    Error was:\n
    $!
    \n";
+    print $errorText  if ($printError);
+    return;
+  }
+  $outrc = "";
+  @rclist = split(/\n/, $fileData);
+  foreach $rcline (@rclist) {
+    ($ts, $page, $junk) = split(/$FS3/, $rcline);
+    if ($page eq $old) {
+      if ($action == 1) {  # Delete
+        ; # Do nothing (don't add line to new RC)
+      } elsif ($action == 2) {
+        $junk = $rcline;
+        $junk =~ s/^(\d+$FS3)$old($FS3)/"$1$new$2"/ge;
+        $outrc .= $junk . "\n";
+      }
+    } else {
+      $outrc .= $rcline . "\n";
+    }
+  }
+  &WriteStringToFile($fname . ".old", $fileData);  # Backup copy
+  &WriteStringToFile($fname, $outrc);
+}
+
+# Delete and rename must be done inside locks.
+sub DeletePage {
+  my ($page, $doRC, $doText) = @_;
+  my ($fname, $status);
+
+  $page =~ s/ /_/g;
+  $page =~ s/\[+//;
+  $page =~ s/\]+//;
+  $status = &ValidId($page);
+  if ($status ne "") {
+    print "Delete-Page: page $page is invalid, error is: $status
    \n";
+    return;
+  }
+  $fname = &GetPageFile($page);
+  unlink($fname)  if (-f $fname);
+  $fname = $KeepDir . "/" . &GetPageDirectory($page) .  "/$page.kp";
+  unlink($fname)  if (-f $fname);
+  unlink($IndexFile)  if ($UseIndex);
+  &EditRecentChanges(1, $page, "")  if ($doRC);  # Delete page
+  # Currently don't do anything with page text
+}
+
+# Given text, returns substituted text
+sub SubstituteTextLinks {
+  my ($old, $new, $text) = @_;
+
+  # Much of this is taken from the common markup
+  %SaveUrl = ();
+  $SaveUrlIndex = 0;
+  $text =~ s/$FS(\d)/$1/g;              # Remove separators (paranoia)
+  if ($RawHtml) {
+    $text =~ s/(((.|\n)*?)<\/html>)/&StoreRaw($1)/ige;
+  }
+  $text =~ s/(
    ((.|\n)*?)<\/pre>)/&StoreRaw($1)/ige;
+  $text =~ s/(((.|\n)*?)<\/code>)/&StoreRaw($1)/ige;
+  $text =~ s/(((.|\n)*?)<\/nowiki>)/&StoreRaw($1)/ige;
+  if ($FreeLinks) {
+    $text =~
+     s/\[\[$FreeLinkPattern\|([^\]]+)\]\]/&SubFreeLink($1,$2,$old,$new)/geo;
+    $text =~ s/\[\[$FreeLinkPattern\]\]/&SubFreeLink($1,"",$old,$new)/geo;
+  }
+  if ($BracketText) {  # Links like [URL text of link]
+    $text =~ s/(\[$UrlPattern\s+([^\]]+?)\])/&StoreRaw($1)/geo;
+    $text =~ s/(\[$InterLinkPattern\s+([^\]]+?)\])/&StoreRaw($1)/geo;
+  }
+  $text =~ s/(\[?$UrlPattern\]?)/&StoreRaw($1)/geo;
+  $text =~ s/(\[?$InterLinkPattern\]?)/&StoreRaw($1)/geo;
+  if ($WikiLinks) {
+    $text =~ s/$LinkPattern/&SubWikiLink($1, $old, $new)/geo;
+  }
+  # Thanks to David Claughton for the following fix
+  1 while $text =~ s/$FS(\d+)$FS/$SaveUrl{$1}/ge;   # Restore saved text
+  return $text;
+}
+
+sub SubFreeLink {
+  my ($link, $name, $old, $new) = @_;
+  my ($oldlink);
+
+  $oldlink = $link;
+  $link =~ s/^\s+//;
+  $link =~ s/\s+$//;
+  if (($link eq $old) || (&FreeToNormal($old) eq &FreeToNormal($link))) {
+    $link = $new;
+  } else {
+    $link = $oldlink;  # Preserve spaces if no match
+  }
+  $link = "[[$link";
+  if ($name ne "") {
+    $link .= "|$name";
+  }
+  $link .= "]]";
+  return &StoreRaw($link);
+}
+
+sub SubWikiLink {
+  my ($link, $old, $new) = @_;
+  my ($newBracket);
+
+  $newBracket = 0;
+  if ($link eq $old) {
+    $link = $new;
+    if (!($new =~ /^$LinkPattern$/)) {
+      $link = "[[$link]]";
+    }
+  }
+  return &StoreRaw($link);
+}
+
+# Rename is mostly copied from expire
+sub RenameKeepText {
+  my ($page, $old, $new) = @_;
+  my ($fname, $status, $data, @kplist, %tempSection, $changed);
+  my ($sectName, $newText);
+
+  $fname = $KeepDir . "/" . &GetPageDirectory($page) .  "/$page.kp";
+  return  if (!(-f $fname));
+  ($status, $data) = &ReadFile($fname);
+  return  if (!$status);
+  @kplist = split(/$FS1/, $data, -1);  # -1 keeps trailing null fields
+  return  if (length(@kplist) < 1);  # Also empty
+  shift(@kplist)  if ($kplist[0] eq "");  # First can be empty
+  return  if (length(@kplist) < 1);  # Also empty
+  %tempSection = split(/$FS2/, $kplist[0], -1);
+  if (!defined($tempSection{'keepts'})) {
+    return;
+  }
+  # First pass: optimize for nothing changed
+  $changed = 0;
+  foreach (@kplist) {
+    %tempSection = split(/$FS2/, $_, -1);
+    $sectName = $tempSection{'name'};
+    if ($sectName =~ /^(text_)/) {
+      %Text = split(/$FS3/, $tempSection{'data'}, -1);
+      $newText = &SubstituteTextLinks($old, $new, $Text{'text'});
+      $changed = 1  if ($Text{'text'} ne $newText);
+    }
+  }
+  return  if (!$changed);  # No sections changed
+  open (OUT, ">$fname") or return;
+  foreach (@kplist) {
+    %tempSection = split(/$FS2/, $_, -1);
+    $sectName = $tempSection{'name'};
+    if ($sectName =~ /^(text_)/) {
+      %Text = split(/$FS3/, $tempSection{'data'}, -1);
+      $newText = &SubstituteTextLinks($old, $new, $Text{'text'});
+      $Text{'text'} = $newText;
+      $tempSection{'data'} = join($FS3, %Text);
+      print OUT $FS1, join($FS2, %tempSection);
+    } else {
+      print OUT $FS1, $_;
+    }
+  }
+  close(OUT);
+}
+
+sub RenameTextLinks {
+  my ($old, $new) = @_;
+  my ($changed, $file, $page, $section, $oldText, $newText, $status);
+  my ($oldCanonical, @pageList);
+
+  $old =~ s/ /_/g;
+  $oldCanonical = &FreeToNormal($old);
+  $new =~ s/ /_/g;
+  $status = &ValidId($old);
+  if ($status ne "") {
+    print "Rename-Text: old page $old is invalid, error is: $status
    \n";
+    return;
+  }
+  $status = &ValidId($new);
+  if ($status ne "") {
+    print "Rename-Text: new page $new is invalid, error is: $status
    \n";
+    return;
+  }
+  $old =~ s/_/ /g;
+  $new =~ s/_/ /g;
+  # Note: the LinkIndex must be built prior to this routine
+  return  if (!defined($LinkIndex{$oldCanonical}));
+  @pageList = split(' ', $LinkIndex{$oldCanonical});
+  foreach $page (@pageList) {
+    $changed = 0;
+    &OpenPage($page);
+    foreach $section (keys %Page) {
+      if ($section =~ /^text_/) {
+        &OpenSection($section);
+        %Text = split(/$FS3/, $Section{'data'}, -1);
+        $oldText = $Text{'text'};
+        $newText = &SubstituteTextLinks($old, $new, $oldText);
+        if ($oldText ne $newText) {
+          $Text{'text'} = $newText;
+          $Section{'data'} = join($FS3, %Text);
+          $Page{$section} = join($FS2, %Section);
+          $changed = 1;
+        }
+      } elsif ($section =~ /^cache_diff/) {
+        $oldText = $Page{$section};
+        $newText = &SubstituteTextLinks($old, $new, $oldText);
+        if ($oldText ne $newText) {
+          $Page{$section} = $newText;
+          $changed = 1;
+        }
+      }
+      # Add other text-sections (categories) here
+    }
+    if ($changed) {
+      $file = &GetPageFile($page);
+      &WriteStringToFile($file, join($FS1, %Page));
+    }
+    &RenameKeepText($page, $old, $new);
+  }
+}
+
+sub RenamePage {
+  my ($old, $new, $doRC, $doText) = @_;
+  my ($oldfname, $newfname, $oldkeep, $newkeep, $status);
+
+  $old =~ s/ /_/g;
+  $new = &FreeToNormal($new);
+  $status = &ValidId($old);
+  if ($status ne "") {
+    print "Rename: old page $old is invalid, error is: $status
    \n";
+    return;
+  }
+  $status = &ValidId($new);
+  if ($status ne "") {
+    print "Rename: new page $new is invalid, error is: $status
    \n";
+    return;
+  }
+  $newfname = &GetPageFile($new);
+  if (-f $newfname) {
+    print "Rename: new page $new already exists--not renamed.
    \n";
+    return;
+  }
+  $oldfname = &GetPageFile($old);
+  if (!(-f $oldfname)) {
+    print "Rename: old page $old does not exist--nothing done.
    \n";
+    return;
+  }
+  &CreatePageDir($PageDir, $new);  # It might not exist yet
+  rename($oldfname, $newfname);
+  &CreatePageDir($KeepDir, $new);
+  $oldkeep = $KeepDir . "/" . &GetPageDirectory($old) .  "/$old.kp";
+  $newkeep = $KeepDir . "/" . &GetPageDirectory($new) .  "/$new.kp";
+  unlink($newkeep)  if (-f $newkeep);  # Clean up if needed.
+  rename($oldkeep,  $newkeep);
+  unlink($IndexFile)  if ($UseIndex);
+  &EditRecentChanges(2, $old, $new)  if ($doRC);
+  if ($doText) {
+    &BuildLinkIndexPage($new);  # Keep index up-to-date
+    &RenameTextLinks($old, $new);
+  }
+}
+
+sub DoShowVersion {
+  print &GetHeader("", "Displaying Wiki Version", "");
+  print "
    UseModWiki version 1.0
    \n";
+  print &GetCommonFooter();
+}
+
+# Admin bar contributed by ElMoro (with some changes)
+sub GetPageLockLink {
+  my ($id, $status, $name) = @_;
+
+  if ($FreeLinks) {
+    $id = &FreeToNormal($id);
+  }
+  return &ScriptLink("action=pagelock&set=$status&id=$id", $name);
+}
+
+sub GetAdminBar {
+  my ($id) = @_;
+  my ($result);
+
+  $result = T('Administration') . ': ';
+  if (-f &GetLockedPageFile($id))   { 
+    $result .= &GetPageLockLink($id, 0, T('Unlock page'));
+  }
+  else  {
+    $result .= &GetPageLockLink($id, 1, T('Lock page'));
+  }
+  $result .= " | " . &GetDeleteLink($id, T('Delete this page'), 0);
+  $result .= " | " . &ScriptLink("action=editbanned", T("Edit Banned List"));
+  $result .= " | " . &ScriptLink("action=maintain", T("Run Maintenance"));
+  $result .= " | " . &ScriptLink("action=editlinks", T("Edit/Rename pages")); 
+  if (-f "$DataDir/noedit") {
+    $result .= " | " . &ScriptLink("action=editlock&set=0", T("Unlock site")); 
+  } else {
+    $result .= " | " . &ScriptLink("action=editlock&set=1", T("Lock site"));
+  }
+  return $result;
+}
+
+# Thanks to Phillip Riley for original code
+sub DoDeletePage {
+  my ($id) = @_;
+
+  return  if (!&ValidIdOrDie($id));
+  return  if (!&UserIsAdminOrError());
+  if ($ConfirmDel && !&GetParam('confirm', 0)) {
+    print &GetHeader('', Ts('Confirm Delete %s', $id), '');
+    print '
    ';
+    print Ts('Confirm deletion of %s by following this link:', $id);
+    print '
    ' . &GetDeleteLink($id, T('Confirm Delete'), 1);
+    print '
    ';
+    print &GetCommonFooter();
+    return;
+  }
+  print &GetHeader('', Ts('Delete %s', $id), '');
+  print '
    ';
+  if ($id eq $HomePage)  {
+    print Ts('%s can not be deleted.', $HomePage);
+  } else {
+    if (-f &GetLockedPageFile($id))   {
+      print Ts('%s can not be deleted because it is locked.', $id);
+    } else {
+      # Must lock because of RC-editing
+      &RequestLock() or die(T('Could not get editing lock'));
+      DeletePage($id, 1, 1);
+      &ReleaseLock();
+      print Ts('%s has been deleted.', $id);
+    }
+  }
+  print '
    ';
+  print &GetCommonFooter();
+}
+
+# Thanks to Ross Kowalski and Iliyan Jeliazkov for original uploading code
+sub DoUpload {
+  print &GetHeader('', T('File Upload Page'), '');
+  if (!$AllUpload) {
+    return if (!&UserIsEditorOrError());
+  }
+  print '
    ' . Ts('The current upload size limit is %s.', $MaxPost) . ' '
+        . Ts('Change the %s variable to increase this limit.', '$MaxPost');
+  print '

    ';
+  print '
    ';
+  print '';
+  print 'File to Upload: 

    ';
+  print '';
+  print '
    ';
+  print &GetCommonFooter(); 
+}
+
+sub SaveUpload {
+  my ($filename, $printFilename, $uploadFilehandle);
+ 
+  print &GetHeader('', T('Upload Finished'), '');
+  if (!$AllUpload) {
+    return  if (!&UserIsEditorOrError());
+  }
+  $UploadDir .= '/'  if (substr($UploadDir, -1, 1) ne '/');  # End with /
+  $UploadUrl .= '/'  if (substr($UploadUrl, -1, 1) ne '/');  # End with /
+  $filename = $q->param('file');
+  $filename =~ s/.*[\/\\](.*)/$1/;  # Only name after last \ or /
+  $uploadFilehandle = $q->upload('file');
+  open UPLOADFILE, ">$UploadDir$filename";
+  while (<$uploadFilehandle>) { print UPLOADFILE; }
+  close UPLOADFILE;
+  print T('The wiki link to your file is:') . "\n

    ";
+  $printFilename = $filename;
+  $printFilename =~ s/ /\%20/g;  # Replace spaces with escaped spaces
+  print "upload:" . $printFilename . "

    \n";
+  if ($filename =~ /${ImageExtensions}$/) {
+    print '
    ' . "\n";
+  }
+  print &GetCommonFooter();
+}
+
+sub ConvertFsFile {
+  my ($oldFS, $newFS, $fname) = @_;
+  my ($oldData, $newData, $status);
+
+  return  if (!-f $fname);  # Convert only existing regular files
+  ($status, $oldData) = &ReadFile($fname);
+  if (!$status) {
+    print '
    ' . Ts('Could not open file %s', $fname)
+          . ':' . T('Error was') . ":\n
    $!
    \n" . '
    ';
+    return;
+  }
+  $newData = $oldData;
+  $newData =~ s/$oldFS(\d)/$newFS . $1/ge;
+  return  if ($oldData eq $newData);  # Do not write if the same
+  &WriteStringToFile($fname, $newData);
+# print $fname . '
    ';    # progress report
+}
+
+# Converts up to 3 dirs deep  (like page/A/Apple/subpage.db)
+# Note that top level directory (page/keep/user) contains only dirs
+sub ConvertFsDir {
+  my ($oldFS, $newFS, $topDir) = @_;
+  my (@dirs, @files, @subFiles, $dir, $file, $subFile, $fname, $subFname);
+
+  opendir(DIRLIST, $topDir);
+  @dirs = readdir(DIRLIST);
+  closedir(DIRLIST);
+  @dirs = sort(@dirs);
+  foreach $dir (@dirs) {
+    next  if (substr($dir, 0, 1) eq '.');   # No ., .., or .dirs
+    next  if (!-d "$topDir/$dir");          # Top level directories only
+    next  if (-f "$topDir/$dir.cvt");       # Skip if already converted
+    opendir(DIRLIST, "$topDir/$dir");
+    @files = readdir(DIRLIST);
+    closedir(DIRLIST);
+    foreach $file (@files) {
+      next  if (($file eq '.') || ($file eq '..'));
+      $fname = "$topDir/$dir/$file";
+      if (-f $fname) {
+#       print $fname . '
    ';   # progress
+        &ConvertFsFile($oldFS, $newFS, $fname);
+      } elsif (-d $fname) {
+        opendir(DIRLIST, $fname);
+        @subFiles = readdir(DIRLIST);
+        closedir(DIRLIST);
+        foreach $subFile (@subFiles) {
+          next  if (($subFile eq '.') || ($subFile eq '..'));
+          $subFname = "$fname/$subFile";
+          if (-f $subFname) {
+#           print $subFname . '
    ';   # progress
+            &ConvertFsFile($oldFS, $newFS, $subFname);
+          }
+        }
+      }
+    }
+  &WriteStringToFile("$topDir/$dir.cvt", 'converted');
+  }
+}
+
+sub ConvertFsCleanup {
+  my ($topDir) = @_;
+  my (@dirs, $dir);
+
+  opendir(DIRLIST, $topDir);
+  @dirs = readdir(DIRLIST);
+  closedir(DIRLIST);
+  foreach $dir (@dirs) {
+    next  if (substr($dir, 0, 1) eq '.');   # No ., .., or .dirs
+    next  if (!-f "$topDir/$dir");          # Remove only files...
+    next  unless ($dir =~ m/\.cvt$/);       # ...that end with .cvt
+    unlink "$topDir/$dir";
+  }
+}
+
+sub DoConvert {
+  my $oldFS = "\xb3";
+  my $newFS = "\x1e\xff\xfe\x1e";
+
+  print &GetHeader('', T('Convert wiki DB'), '');
+  return if (!&UserIsAdminOrError());
+  if ($FS ne $newFS) {
+    print Ts('You must change the %s option before converting the wiki DB.',
+             '$NewFS') . '
    ';
+    return;
+  }
+  &WriteStringToFile("$DataDir/noedit", 'editing locked.');
+  print T('Wiki DB locked for conversion.') . '
    ';
+  print T('Converting Wiki DB...') . '
    ';
+  &ConvertFsFile($oldFS, $newFS, "$DataDir/rclog");
+  &ConvertFsFile($oldFS, $newFS, "$DataDir/rclog.old");
+  &ConvertFsFile($oldFS, $newFS, "$DataDir/oldrclog");
+  &ConvertFsFile($oldFS, $newFS, "$DataDir/oldrclog.old");
+  &ConvertFsDir($oldFS, $newFS, $PageDir);
+  &ConvertFsDir($oldFS, $newFS, $KeepDir);
+  &ConvertFsDir($oldFS, $newFS, $UserDir);
+  &ConvertFsCleanup($PageDir);
+  &ConvertFsCleanup($KeepDir);
+  &ConvertFsCleanup($UserDir);
+  print T('Finished converting wiki DB.') . '
    ';
+  print Ts('Remove file %s to unlock wiki for editing.', "$DataDir/noedit")
+        . '
    ';
+  print &GetCommonFooter();
+}
+
+# Remove user-id files if no useful preferences set
+sub DoTrimUsers {
+  my (%Data, $status, $data, $maxID, $id, $removed, $keep);
+  my (@dirs, @files, $dir, $file, $item);
+
+  print &GetHeader('', T('Trim wiki users'), '');
+  return if (!&UserIsAdminOrError());
+  $removed = 0;
+  $maxID = 1001;
+  opendir(DIRLIST, $UserDir);
+  @dirs = readdir(DIRLIST);
+  closedir(DIRLIST);
+  foreach $dir (@dirs) {
+    next  if (substr($dir, 0, 1) eq '.');   # No ., .., or .dirs
+    next  if (!-d "$UserDir/$dir");         # Top level directories only
+    opendir(DIRLIST, "$UserDir/$dir");
+    @files = readdir(DIRLIST);
+    closedir(DIRLIST);
+    foreach $file (@files) {
+      if ($file =~ m/(\d+).db/) {  # Only numeric ID files
+        $id = $1;
+        $maxID = $id  if ($id > $maxID);
+        %Data = ();
+        ($status, $data) = &ReadFile("$UserDir/$dir/$file");
+        if ($status) {
+          %Data = split(/$FS1/, $data, -1);  # -1 keeps trailing null fields
+          $keep = 0;
+          foreach $item (qw(username password adminpw stylesheet)) {
+            $keep = 1  if (defined($Data{$item}) && ($Data{$item} ne ''));
+          }
+          if (!$keep) {
+            unlink "$UserDir/$dir/$file";
+#           print "$UserDir/$dir/$file" . '
    ';  # progress
+            $removed += 1;
+          }
+        }
+      }
+    }
+  }
+  print Ts('Removed %s files.', $removed) . '
    ';
+  print Ts('Recommended $StartUID setting is %s.', $maxID + 100) . '
    ';
+  print &GetCommonFooter();
+}
+#END_OF_OTHER_CODE
+
+&DoWikiRequest()  if ($RunCGI && ($_ ne 'nocgi'));   # Do everything.
+1; # In case we are loaded from elsewhere
+# == End of UseModWiki script. ===========================================