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45b04036bed17127cf5868d76fc2fdf3a8be37d3
archived-web-php/error.php
Hannes Magnusson 45b04036be Add & shortcut
2006-09-28 15:15:03 +00:00

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<?php
// $Id$
/*
This script handles all 401, 403 and 404 error redirects,
and some directory requests (like /images). Uses the
preferred language setting and the REQUEST_URI to guess what
page should be displayed. In case there is no page that can
be displayed, the user is redirected to a search page.
*/
// Ensure that our environment is set up
include_once $_SERVER['DOCUMENT_ROOT'] . '/include/prepend.inc';
include_once $_SERVER['DOCUMENT_ROOT'] . '/include/loadavg.inc';
include_once $_SERVER['DOCUMENT_ROOT'] . '/include/errors.inc';
// Get URI for this request, strip leading slash
// See langchooser.inc for more info on STRIPPED_URI
$URI = substr($_SERVER['STRIPPED_URI'], 1);
// ============================================================================
// Mozilla Search Sidebar plugin resource file handling (need to be mirror
// dependent, so the search results will show up in the sidebar)
if ($URI == 'phpnetsearch.src') {
status_header(200);
include_once $_SERVER['DOCUMENT_ROOT'] . '/include/mozsearch.inc';
exit;
}
// ============================================================================
// BC: handle bugs.php moved completely to bugs.php.net
if (preg_match("!^bugs.php\\?(.+)$!", $URI, $array)) {
mirror_redirect("http://bugs.php.net/?$array[1]");
}
// ============================================================================
// Omit query string from URL and urldecode special chars
$URI = urldecode(preg_replace("!(\\?.*$)!", "", $URI));
// ============================================================================
// Perform a redirect for manual figures, other images display a 404 automatically
if (preg_match("!^manual/(\\w+)/(print|printwn)/figures/(.+)$!", $URI, $parts)) {
mirror_redirect("/manual/$parts[1]/figures/$parts[3]");
} elseif (preg_match("!\\.(pdf|gif|jpg|png)$!i", $URI)) {
error_404();
}
// ============================================================================
// BC: handle .php3 files that were renamed to .php
if (preg_match("!(.*\\.php)3$!", $URI, $array)) {
mirror_redirect("/$array[1]");
}
// ============================================================================
// BC: handle moving english manual down into its own directory (also supports
// default language manual accessibilty on mirror sites through /manual/filename)
if (preg_match("!^manual(/[^/]*)$!", $URI, $array)) {
mirror_redirect("/manual/$LANG$array[1]");
} elseif (preg_match("!^manual/html/([^/]+)$!", $URI, $array)) {
$array[1] = preg_replace("!.html$!", ".php", $array[1]);
mirror_redirect("/manual/$LANG/$array[1]");
}
// ============================================================================
// BC: News archive moved to subfolder
if (preg_match("!^news-(\\d+)(\\.|$)!", $URI, $array)) {
mirror_redirect("/archive/$array[1].php");
}
// ============================================================================
// BC: Release files moved to subfolder
if (preg_match("!^release_([^\\.]+)(\\.php$|$)!", $URI, $array)) {
mirror_redirect("/releases/$array[1].php");
}
// ============================================================================
// BC: handle documentation howto moved to the doc.php.net server
// (redirect to index page)
if (preg_match("!^manual/howto/!", $URI, $array)) {
mirror_redirect("http://doc.php.net/php/dochowto/");
}
// ============================================================================
// BC: Printer friendly manual page handling was separate previously, but we
// only need to redirect the old URLs now. Our pages are now printer friendly
// by design.
if (preg_match("!^manual/(\\w+)/(print|printwn|html)((/.+)|$)!", $URI, $array)) {
$array[3] = preg_replace("!.html$!", ".php", $array[3]);
mirror_redirect("/manual/$array[1]$array[3]");
}
// ============================================================================
// The trailing slash only causes problems from now on
$URI = preg_replace('!/+$!', '', $URI);
// ============================================================================
// Some nice URLs for getting something for download
if (preg_match("!^get/([^/]+)$!", $URI, $what)) {
switch ($what[1]) {
case "php" : $URI = "downloads"; break;
case "docs" : // intentional
case "documentation" : $URI = "download-docs"; break;
case "dochowto" : // intentional
case "phpdochowto" : $URI = "getdochowto"; break;
}
}
// ============================================================================
// Nice URLs for download files, so wget works completely well with download links
if (preg_match("!^get/([^/]+)/from/([^/]+)(/mirror)?$!", $URI, $dlinfo)) {
$df = $dlinfo[1];
// Mirror selection page
if ($dlinfo[2] == "a") {
status_header(200);
include_once $_SERVER['DOCUMENT_ROOT'] . "/include/get-download.inc";
exit;
}
// The same mirror is selected
if ($dlinfo[2] == "this") { $mr = $MYSITE; }
// Some other mirror is selected
else { $mr = "http://{$dlinfo[2]}/"; }
// Start the download process
status_header(200);
include $_SERVER['DOCUMENT_ROOT'] . "/include/do-download.inc";
download_file($mr, $df);
exit;
}
// Work with lowercased URI from now
$URI = strtolower($URI);
// ============================================================================
// Major manual page modifications (need to handle shortcuts and pages in all languages)
// Used permanent HTTP redirects, so search engines will be able to pick up the correct
// new URLs for these pages.
$manual_page_moves = array(
// entry point changed
'installation' => 'install',
// was splitted among platforms (don't know where to redirect)
'install.apache' => 'install',
'install.apache2' => 'install',
'install.netscape-enterprise'=> 'install',
'install.otherhttpd' => 'install',
// moved to platform sections
'install.caudium' => 'install.unix.caudium',
'install.commandline' => 'install.unix.commandline',
'install.fhttpd' => 'install.unix.fhttpd',
'install.hpux' => 'install.unix.hpux',
'install.iis' => 'install.windows.iis',
'install.linux' => 'install.unix',
'install.omnihttpd' => 'install.windows.omnihttpd',
'install.openbsd' => 'install.unix.openbsd',
'install.sambar' => 'install.windows.sambar',
'install.solaris' => 'install.unix.solaris',
'install.xitami' => 'install.windows.xitami',
);
if (isset($manual_page_moves[$URI])) {
status_header(301);
mirror_redirect("/" . $manual_page_moves[$URI]);
} elseif (preg_match("!^manual/([^/]+)/([^/]+).php$!", $URI, $match) &&
isset($manual_page_moves[$match[2]])) {
status_header(301);
mirror_redirect("/manual/$match[1]/" . $manual_page_moves[$match[2]] . ".php");
}
// ============================================================================
// Define shortcuts for PHP files, manual pages and external redirects
$uri_aliases = array (
# PHP page shortcuts
"download" => "downloads",
"getphp" => "downloads",
"getdocs" => "download-docs",
"documentation" => "docs",
"mailinglists" => "mailing-lists",
"mailinglist" => "mailing-lists",
"changelog" => "ChangeLog-4",
"gethelp" => "support",
"help" => "support",
"unsubscribe" => "unsub",
"subscribe" => "mailing-lists",
"logos" => "download-logos",
# manual shortcuts
"ini" => "configuration",
"intro" => "introduction",
"whatis" => "introduction",
"whatisphp" => "introduction",
"what_is_php" => "introduction",
"windows" => "install.windows",
"win32" => "install.windows",
"globals" => "language.variables.predefined",
"register_globals" => "security.globals",
"registerglobals" => "security.globals",
"manual/en/security.registerglobals.php" => "security.globals", // fix for 4.3.8 configure
"magic_quotes" => "security.magicquotes",
"magicquotes" => "security.magicquotes",
"gd" => "image",
"callback" => "language.pseudo-types",
"number" => "language.pseudo-types",
"mixed" => "language.pseudo-types",
"bool" => "language.types.boolean",
"boolean" => "language.types.boolean",
"int" => "language.types.integer",
"integer" => "language.types.integer",
"float" => "language.types.float",
"string" => "language.types.string",
"heredoc" => "language.types.string",
"<<<" => "language.types.string",
"object" => "language.types.object",
"null" => "language.types.null",
"htaccess" => "configuration.changes",
"php_value" => "configuration.changes",
"ternary" => "language.operators.comparison",
"instanceof" => "language.operators.type",
"if" => "language.control-structures",
"static" => "language.variables.scope",
"global" => "language.variables.scope",
"@" => "language.operators.errorcontrol",
"&" => "language.references",
"tut" => "tutorial",
"tut.php" => "tutorial", // BC
"faq.php" => "faq", // BC
"bugs.php" => "bugs", // BC
"bugstats.php" => "bugstats", // BC
"icap" => "mcal", // mcal is the successor of icap
"odbc" => "uodbc", // BC
"_" => "function.gettext",
"class" => "language.oop5.basic",
"new" => "language.oop5.basic",
"extends" => "language.oop5.basic",
"construct" => "language.oop5.decon",
"destruct" => "language.oop5.decon",
"public" => "language.oop5.visibility",
"private" => "language.oop5.visibility",
"protected" => "language.oop5.visibility",
"abstract" => "language.oop5.abstract",
"interface" => "language.oop5.interfaces",
"interfaces" => "language.oop5.interfaces",
"autoload" => "language.oop5.autoload",
"__autoload" => "language.oop5.autoload",
"reflection" => "language.oop5.reflection",
"::" => "language.oop5.paamayim-nekudotayim",
"throw" => "language.exceptions",
"try" => "language.exceptions",
"catch" => "language.exceptions",
"factory" => "language.oop5.patterns",
"singleton" => "language.oop5.patterns",
"news.php" => "archive/index", // BC
"readme.mirror" => "mirroring", // BC
"php5" => "language.oop5",
"zend_changes.txt" => "language.oop5", // BC
"zend2_example.phps" => "language.oop5", // BC
"zend_changes_php_5_0_0b2.txt" => "language.oop5", // BC
"zend-engine-2" => "language.oop5", // BC
"zend-engine-2.php" => "language.oop5", // BC
"news_php_5_0_0b2.txt" => "ChangeLog-5", // BC
"news_php_5_0_0b3.txt" => "ChangeLog-5", // BC
"manual/about-notes.php" => "manual/add-note", // BC
"software/index.php" => "software", // BC
"releases.php" => "releases/index", // BC
# external shortcut aliases ;)
"dochowto" => "phpdochowto",
"projects.php" => "projects", // BC
);
$external_redirects = array(
"php4news" => "http://cvs.php.net/viewcvs.cgi/php-src/NEWS?view=markup&pathrev=PHP_4_4",
"php5news" => "http://cvs.php.net/viewcvs.cgi/php-src/NEWS?view=markup&pathrev=PHP_5_2",
"php6news" => "http://cvs.php.net/viewcvs.cgi/php-src/NEWS?view=markup&pathrev=HEAD",
"projects" => "http://freshmeat.net/browse/183/",
"pear" => "http://pear.php.net/",
"bugs" => "http://bugs.php.net/",
"bugstats" => "http://bugs.php.net/bugstats.php",
"phpdochowto" => "http://doc.php.net/php/dochowto/",
"getdochowto" => "http://doc.php.net/php/dochowto/howto.html.tar.gz",
"rev" => "http://doc.php.net/php/$LANG/revcheck.php",
//"blog" => "/manual/$LANG/build.log.gz",
"functions.js.txt" => "http://cvs.php.net/cvs.php/phpdoc/scripts/quickref",
);
// ============================================================================
// "Rewrite" the URL, if it was a shortcut
if (isset($uri_aliases[$URI])) {
$URI = $uri_aliases[$URI];
}
// ============================================================================
// Redirect if the entered URI was a PHP page name (except some pages,
// which we display in the mirror's language or the explicitly specified
// language [see below])
if (!in_array($URI, array('mirror-info', 'error')) &&
file_exists($_SERVER['DOCUMENT_ROOT'] . "/$URI.php")) {
mirror_redirect("/$URI.php");
}
// ============================================================================
// Execute external redirect if a rule exists for the URI
if (isset($external_redirects[$URI])) {
mirror_redirect($external_redirects[$URI]);
}
// Temporary hack for mirror-info, until all the pages
// will be capable of being included from anywhere
if ($URI=='mirror-info') {
status_header(200);
include_once $_SERVER['DOCUMENT_ROOT'] . "/$URI.php";
}
// ============================================================================
// Try to find the page using the preferred language as a manual page
include_once $_SERVER['DOCUMENT_ROOT'] . "/include/manual-lookup.inc";
$try = find_manual_page($LANG, $URI);
if ($try) {
status_header(200);
include_once $_SERVER['DOCUMENT_ROOT'] . $try;
exit;
}
// ============================================================================
// 404 page for manual pages (eg. not built language)
if (strpos($URI, "manual/") === 0) {
error_404_manual();
}
// ============================================================================
// If no match was found till this point, the last action is to start a
// search with the URI the user typed in
$fallback = (myphpnet_urlsearch() === MYPHPNET_URL_MANUAL ? "manual" : "quickref");
mirror_redirect(
'/search.php?show=' . $fallback . '&lang=' . urlencode($LANG) .
'&pattern=' . urlencode(substr($_SERVER['REQUEST_URI'], 1))
);
/*
* vim:et
*/
?>
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