176 lines
7.3 KiB
PHP
176 lines
7.3 KiB
PHP
<?php
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register_module([
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"name" => "Page viewer",
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"version" => "0.16.6",
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"author" => "Starbeamrainbowlabs",
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"description" => "Allows you to view pages. You really should include this one.",
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"id" => "page-view",
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"code" => function() {
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/**
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* @api {get} ?action=view[&page={pageName}][&revision=rid][&printable=yes] View a page
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* @apiName View
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* @apiGroup Page
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* @apiPermission Anonymous
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*
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* @apiUse PageParameter
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* @apiParam {number} revision The revision number to display.
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* @apiParam {string} mode Optional. The display mode to use. Can hld the following values: 'normal' - The default. Sends a normal page. 'printable' - Sends a printable version of the page. 'contentonly' - Sends only the content of the page, not the extra stuff around it. 'parsedsourceonly' - Sends only the raw rendered source of the page, as it appears just after it has come out of the page parser. Useful for writing external tools (see also the `raw` action).
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*
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* @apiError NonExistentPageError The page doesn't exist and editing is disabled in the wiki's settings. If editing isn't disabled, you will be redirected to the edit page instead.
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* @apiError NonExistentRevisionError The specified revision was not found.
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*/
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/*
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* ██ ██ ██ ███████ ██ ██
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* ██ ██ ██ ██ ██ ██
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* ██ ██ ██ █████ ██ █ ██
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* ██ ██ ██ ██ ██ ███ ██
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* ████ ██ ███████ ███ ███
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*/
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add_action("view", function() {
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global $pageindex, $settings, $env;
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// Check to make sure that the page exists
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$page = $env->page;
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if(!isset($pageindex->$page))
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{
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// todo make this intelligent so we only redirect if the user is actually able to create the page
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if($settings->editing)
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{
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// Editing is enabled, redirect to the editing page
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http_response_code(307); // Temporary redirect
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header("location: index.php?action=edit&newpage=yes&page=" . rawurlencode($env->page));
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exit();
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}
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else
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{
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// Editing is disabled, show an error message
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http_response_code(404);
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exit(page_renderer::render_main("404: Page not found - $env->page - $settings->sitename", "<p>$env->page does not exist.</p><p>Since editing is currently disabled on this wiki, you may not create this page. If you feel that this page should exist, try contacting this wiki's Administrator.</p>"));
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}
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}
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header("last-modified: " . gmdate('D, d M Y H:i:s T', $pageindex->{$env->page}->lastmodified));
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// Perform a redirect if the requested page is a redirect page
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if(isset($pageindex->$page->redirect) &&
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$pageindex->$page->redirect === true)
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{
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$send_redirect = true;
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if(isset($_GET["redirect"]) && $_GET["redirect"] == "no")
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$send_redirect = false;
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if($send_redirect)
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{
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// Todo send an explanatory page along with the redirect
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http_response_code(307);
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$redirectUrl = "?action=$env->action&redirected_from=" . rawurlencode($env->page);
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$hashCode = "";
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$newPage = $pageindex->$page->redirect_target;
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if(strpos($newPage, "#") !== false)
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{
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// Extract the part after the hash symbol
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$hashCode = substr($newPage, strpos($newPage, "#") + 1);
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// Remove the hash from the new page name
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$newPage = substr($newPage, 0, strpos($newPage, "#"));
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}
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$redirectUrl .= "&page=" . rawurlencode($newPage);
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if(!empty($pageindex->$newPage->redirect))
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$redirectUrl .= "&redirect=no";
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if(strlen($hashCode) > 0)
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$redirectUrl .= "#$hashCode";
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header("location: $redirectUrl");
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exit();
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}
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}
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$title = "$env->page - $settings->sitename";
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if(isset($pageindex->$page->protect) && $pageindex->$page->protect === true)
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$title = $settings->protectedpagechar . $title;
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$content = "";
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if(!$env->is_history_revision)
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$content .= "<h1>$env->page</h1>\n";
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else
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{
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$content .= "<h1>Revision #{$env->history->revision_number} of $env->page</h1>\n";
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$content .= "<p class='revision-note'><em>(Revision saved by {$env->history->revision_data->editor} " . render_timestamp($env->history->revision_data->timestamp) . ". <a href='?page=" . rawurlencode($env->page) . "'>Jump to the current revision</a> or see a <a href='?action=history&page=" . rawurlencode($env->page) . "'>list of all revisions</a> for this page.)</em></p>\n";
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}
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// Add an extra message if the requester was redirected from another page
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if(isset($_GET["redirected_from"]))
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$content .= "<p><em>Redirected from <a href='?page=" . rawurlencode($_GET["redirected_from"]) . "&redirect=no'>" . $_GET["redirected_from"] . "</a>.</em></p>";
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$parsing_start = microtime(true);
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$rawRenderedSource = parse_page_source(file_get_contents($env->page_filename));
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$content .= $rawRenderedSource;
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if(!empty($pageindex->$page->tags))
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{
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$content .= "<ul class='page-tags-display'>\n";
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foreach($pageindex->$page->tags as $tag)
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{
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$content .= "<li><a href='?action=list-tags&tag=" . rawurlencode($tag) . "'>$tag</a></li>\n";
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}
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$content .= "\n</ul>\n";
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}
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/*else
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{
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$content .= "<aside class='page-tags-display'><small><em>(No tags yet! Add some by <a href='?action=edit&page=" . rawurlencode($env->page) . "'>editing this page</a>!)</em></small></aside>\n";
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}*/
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if($settings->show_subpages)
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{
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$subpages = get_object_vars(get_subpages($pageindex, $env->page));
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if(count($subpages) > 0)
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{
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$content .= "<hr />";
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$content .= "Subpages: ";
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foreach($subpages as $subpage => $times_removed)
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{
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if($times_removed <= $settings->subpages_display_depth)
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{
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$content .= "<a href='?action=view&page=" . rawurlencode($subpage) . "'>$subpage</a>, ";
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}
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}
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// Remove the last comma from the content
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$content = substr($content, 0, -2);
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}
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}
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$content .= "\n\t\t<!-- Took " . round((microtime(true) - $parsing_start) * 1000, 2) . "ms to parse page source -->\n";
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// Prevent indexing of this page if it's still within the noindex
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// time period
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if(isset($settings->delayed_indexing_time) and
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time() - $pageindex->{$env->page}->lastmodified < $settings->delayed_indexing_time)
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header("x-robots-tag: noindex");
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$settings->footer_message = "$env->page was last edited by {$pageindex->{$env->page}->lasteditor} at " . date('h:ia T \o\n j F Y', $pageindex->{$env->page}->lastmodified) . ".</p>\n<p>" . $settings->footer_message; // Add the last edited time to the footer
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$mode = isset($_GET["mode"]) ? strtolower(trim($_GET["mode"])) : "normal";
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switch($mode)
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{
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case "contentonly":
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// Content only mode: Send only the content of the page
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exit($content);
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case "parsedsourceonly":
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// Parsed source only mode: Send only the raw rendered source
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exit($rawRenderedSource);
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case "printable":
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// Printable mode: Sends a printable version of the page
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exit(page_renderer::render_minimal($title, $content));
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case "normal":
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default:
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// Normal mode: Send a normal page
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exit(page_renderer::render_main($title, $content));
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}
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});
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}
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]);
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?>
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