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fa33a05da967702933770ab6fb3274a28ee86bf3
archived-web-php/error.php
Sobak 66139c0377 Remove link to old HOWTO in favor of new guide 
Maybe it's not complete yet, but it provides more info than previous
resource. Suggestions and contributions are welcome.
2014-06-20 14:02:03 +02:00

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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/languages.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 $_SERVER['DOCUMENT_ROOT'] . '/include/mozsearch.inc';
exit;
}
// FIXME: Nuke the old firefox search plugin
if ($URI == 'phpnetimprovedsearch.src') {
status_header(200);
include_once $_SERVER['DOCUMENT_ROOT'] . '/include/mozopensearch.inc';
exit;
}
// ============================================================================
// BC: handle bugs.php moved completely to bugs.php.net
if (preg_match("!^bugs.php\\?(.+)$!", $URI, $array)) {
mirror_redirect("http://bugs.php.net/?$array[1]");
}
// ============================================================================
// FC: handle advisories
if (preg_match("!^security/advisories/PHPSA-(\\d+)\\.php$!", $URI, $array)) {
status_header(200);
$_GET["id"] = $array[1];
include_once $_SERVER['DOCUMENT_ROOT'] . '/security/index.php';
exit;
}
// ============================================================================
// Omit query string from URL and urldecode special chars
$URI = urldecode(preg_replace("!(\\?.*$)!", "", $URI));
// ============================================================================
// An empty URI is useless at this point, so let's give them the search page
if (empty($URI)) {
mirror_redirect("/search.php");
}
// ============================================================================
// 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 accessibility on mirror sites through /manual/filename)
// @todo do we rely on this? how about removing it...
if (preg_match("!^manual/([^/]*)$!", $URI, $array)) {
if (!isset($INACTIVE_ONLINE_LANGUAGES[$array[1]])) {
mirror_redirect("/manual/$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, $array)) {
mirror_redirect("https://wiki.php.net/doc/howto");
}
// ============================================================================
// BC: Printer friendly manual page handling was separate previously, but we
// only need to redirect the old URLs now. Our pages are now printer friendly
// by design.
if (preg_match("!^manual/(\\w+)/(print|printwn|html)((/.+)|$)!", $URI, $array)) {
$array[3] = preg_replace("!.html$!", ".php", $array[3]);
mirror_redirect("/manual/$array[1]$array[3]");
}
// ============================================================================
// If someone is looking for something in distributions/* and it isn't there,
// send them to the /releases page since that is likely to be most helpful.
if (preg_match("!^distributions/.*!", $URI, $array)) {
status_header(404);
include_once $_SERVER['DOCUMENT_ROOT'] . "/releases/index.php";
}
// ============================================================================
// 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" : $URI = "download-docs"; break;
}
}
// ============================================================================
// Nice URLs for download files, so wget works completely well with download links
if (preg_match("!^get/([^/]+)/from/([^/]+)(/mirror)?$!", $URI, $dlinfo)) {
$df = $dlinfo[1];
if(strpos($df, "5-LATEST") !== false) {
include_once $_SERVER['DOCUMENT_ROOT'] . "/include/version.inc";
$df = str_replace("5-LATEST", $PHP_5_VERSION, $df);
} elseif(strpos($df, "4-LATEST") !== false) {
include_once $_SERVER['DOCUMENT_ROOT'] . "/include/version.inc";
$df = str_replace("4-LATEST", $PHP_4_VERSION, $df);
}
// Mirror selection page
if ($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]}/"; }
// Check if that mirror really exists if not, bail out
if(!isset($MIRRORS[$mr])) {
error_nomirror($mr);
exit;
}
// Start the download process
include $_SERVER['DOCUMENT_ROOT'] . "/include/do-download.inc";
$filename = get_actual_download_file($df);
if ($filename) {
status_header(200);
download_file($mr, $filename);
} else {
status_header(404);
/* The file didn't exist on this server.. ask the user to pick another mirror */
include $_SERVER['DOCUMENT_ROOT'] . "/include/get-download.inc";
}
exit;
}
// php.net/42 --> likely a bug number
if (is_numeric($URI)) {
mirror_redirect("http://bugs.php.net/bug.php?id=$URI");
}
// Work with lowercased URI from now
$URI = strtolower($URI);
// Redirection hack, see error.inc for detailed description
// These expect -foo not _foo
$term = str_replace('_', '-', $URI);
if ($path = is_known_ini($term)) {
status_header(301);
mirror_redirect("/manual/$LANG/$path");
exit;
}
if ($path = is_known_variable($term)) {
status_header(301);
mirror_redirect("/manual/$LANG/$path");
exit;
}
if ($path = is_known_term($term)) {
status_header(301);
mirror_redirect("/manual/$LANG/$path");
exit;
}
// ============================================================================
// 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.
$manual_page_moves = array(
// entry point changed
'installation' => 'install',
// was split among platforms (don't know where to redirect)
'install.apache' => 'install',
'install.apache2' => 'install',
'install.netscape-enterprise'=> 'install',
'install.otherhttpd' => 'install',
// moved to platform sections
'install.caudium' => 'install.unix.caudium',
'install.commandline' => 'install.unix.commandline',
'install.fhttpd' => 'install.unix.fhttpd',
'install.hpux' => 'install.unix.hpux',
'install.iis' => 'install.windows.iis',
'install.linux' => 'install.unix',
'install.omnihttpd' => 'install.windows.omnihttpd',
'install.openbsd' => 'install.unix.openbsd',
'install.sambar' => 'install.windows.sambar',
'install.solaris' => 'install.unix.solaris',
'install.xitami' => 'install.windows.xitami',
'install.windows.installer.msi' => 'install.windows',
'install.windows.installer' => 'install.windows',
// Internals docs where moved
'zend' => 'internals2.ze1.zendapi',
'zend-api' => 'internals2.ze1.zendapi',
'internals.pdo' => 'internals2.pdo',
'phpdevel' => 'internals2.ze1.php3devel',
'tsrm' => 'internals2.ze1.tsrm',
// Replaced extensions
'aspell' => 'pspell',
// Refactored
'regexp.reference' => 'regexp.introduction',
);
if (isset($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-5",
"gethelp" => "support",
"help" => "support",
"unsubscribe" => "unsub",
"subscribe" => "mailing-lists",
"logos" => "download-logos",
# manual shortcuts
"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",
"bcmath" => "bc",
'streams' => 'book.stream',
"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",
"dowhile" => "control-structures.do.while",
"tut" => "tutorial",
"tut.php" => "tutorial", // BC
"faq.php" => "faq", // BC
"bugs.php" => "bugs", // BC
"bugstats.php" => "bugstats", // BC
"docs-echm.php"=> "download-docs", // BC
"odbc" => "uodbc", // BC
"links" => "support", // BC
"links.php" => "support", // BC
"oracle" => "oci8",
"_" => "function.gettext",
"cli" => "features.commandline",
"oop4" => "language.oop",
"oop" => "language.oop5",
"const" => "language.constants.syntax",
"class" => "language.oop5.basic",
"new" => "language.oop5.basic",
"extends" => "language.oop5.basic",
"clone" => "language.oop5.cloning",
"construct" => "language.oop5.decon",
"destruct" => "language.oop5.decon",
"public" => "language.oop5.visibility",
"private" => "language.oop5.visibility",
"protected" => "language.oop5.visibility",
"var" => "language.oop5.visibility",
"abstract" => "language.oop5.abstract",
"interface" => "language.oop5.interfaces",
"interfaces" => "language.oop5.interfaces",
"autoload" => "language.oop5.autoload",
"__autoload" => "language.oop5.autoload",
"language.oop5.reflection" => "book.reflection", // BC
"::" => "language.oop5.paamayim-nekudotayim",
"__construct" => "language.oop5.decon",
"__destruct" => "language.oop5.decon",
"__call" => "language.oop5.overloading",
"__callstatic" => "language.oop5.overloading",
"__get" => "language.oop5.overloading",
"__set" => "language.oop5.overloading",
"__isset" => "language.oop5.overloading",
"__unset" => "language.oop5.overloading",
"__sleep" => "language.oop5.magic",
"__wakeup" => "language.oop5.magic",
"__tostring" => "language.oop5.magic",
"__set_state" => "language.oop5.magic",
"__clone" => "language.oop5.cloning",
"throw" => "language.exceptions",
"try" => "language.exceptions",
"catch" => "language.exceptions",
"lsb" => "language.oop5.late-static-bindings",
"namespace" => "language.namespaces",
"use" => "language.namespaces.using",
"iterator" => "language.oop5.iterations",
"factory" => "language.oop5.patterns",
"singleton" => "language.oop5.patterns",
"trait" => "language.oop5.traits",
"traits" => "language.oop5.traits",
"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
"update_5_2.txt" => "migration52", // BC
"readme_upgrade_51.php" => "migration51", // BC
"internals" => "internals2", // BC
"configuration.directives" => "ini.core", // BC
# regexp. BC
"regexp.reference.backslash" => "regexp.reference.escape",
"regexp.reference.circudollar" => "regexp.reference.anchors",
"regexp.reference.squarebrackets" => "regexp.reference.character-classes",
"regexp.reference.verticalbar" => "regexp.reference.alternation",
# external shortcut aliases ;)
"dochowto" => "phpdochowto",
"projects.php" => "projects", // BC
# CVS -> SVN
"anoncvs.php" => "git",
"cvs-php.php" => "git-php",
# SVN -> Git
"svn" => "git",
"svn.php" => "git",
"svn-php" => "git-php",
"svn-php.php" => "git-php",
# CVSUp -> Nada
"cvsup" => "mirroring",
# Other items
"security/crypt" => "security/crypt_blowfish",
# Bugfixes
"array_sort" => "sort", // #64743
"array-sort" => "sort", // #64743
# Removed pages
"tips.php" => "urlhowto",
"tips" => "urlhowto",
);
$external_redirects = array(
"php4news" => "https://git.php.net/?p=php-src.git;a=blob_plain;f=NEWS;hb=refs/heads/PHP-4.4",
"php5news" => "https://git.php.net/?p=php-src.git;a=blob_plain;f=NEWS;hb=refs/heads/PHP-5.4",
"php53news" => "https://git.php.net/?p=php-src.git;a=blob_plain;f=NEWS;hb=refs/heads/PHP-5.3",
"php54news" => "https://git.php.net/?p=php-src.git;a=blob_plain;f=NEWS;hb=refs/heads/PHP-5.4",
"php55news" => "https://git.php.net/?p=php-src.git;a=blob_plain;f=NEWS;hb=refs/heads/PHP-5.5",
"php56news" => "https://git.php.net/?p=php-src.git;a=blob_plain;f=NEWS;hb=refs/heads/PHP-5.6",
"phptrunknews"=> "https://git.php.net/?p=php-src.git;a=blob_plain;f=NEWS;hb=refs/heads/master",
"projects" => "http://freshmeat.net/tags/php",
"pear" => "http://pear.php.net/",
"bugs" => "http://bugs.php.net/",
"bugstats" => "http://bugs.php.net/bugstats.php",
"phpdochowto" => "http://doc.php.net/tutorial/",
"rev" => "http://doc.php.net/revcheck.php?p=graph&lang=$LANG",
"release/5_3_0.php" => "/releases/5_3_0.php", // PHP 5.3.0 release announcement had a typo
"ideas.php" => "http://wiki.php.net/ideas", // BC
"releases.atom" => "/releases/feed.php", // BC, No need to pre-generate it
// We used to do reST rendering of README files
"rest/readme.release_process" => "http://git.php.net/?p=php-src.git;a=blob_plain;f=README.RELEASE_PROCESS;hb=HEAD",
"rest/readme.mailinglist_rules" => "http://git.php.net/?p=php-src.git;a=blob_plain;f=README.MAILINGLIST_RULES;hb=HEAD",
"rest/readme.git-rules" => "http://git.php.net/?p=php-src.git;a=blob_plain;f=README.GIT-RULES;hb=HEAD",
"rest/coding_standards" => "http://git.php.net/?p=php-src.git;a=blob_plain;f=CODING_STANDARDS;hb=HEAD",
"sunglasses" => "https://www.youtube.com/watch?v=dQw4w9WgXcQ", // Temporary easter egg for bug#66144
);
// ============================================================================
// "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($URI, array('mirror-info', 'error', 'mod')) &&
file_exists($_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";
exit;
}
// ============================================================================
// 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'] . $try;
exit;
}
// BC. The class methods are now classname.methodname
if (preg_match("!^manual/(.+)/function\.(.+)-(.+).php$!", $URI, $array)) {
$try = find_manual_page($array[1], $array[2]. "." .$array[3]);
if ($try) {
status_header(301);
mirror_redirect($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 ? "404manual" : "404quickref");
mirror_redirect(
'/search.php?show=' . $fallback . '&lang=' . urlencode($LANG) .
'&pattern=' . urlencode(substr($_SERVER['REQUEST_URI'], 1))
);
/*
* vim: set et ts=4 sw=4 ft=php: :
*/
?>
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