mirror of
https://github.com/sbrl/Pepperminty-Wiki.git
synced 2024-12-27 03:14:56 +00:00
225 lines
8.9 KiB
PHP
225 lines
8.9 KiB
PHP
<?php
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register_module([
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"name" => "Page editor",
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"version" => "0.13",
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"author" => "Starbeamrainbowlabs",
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"description" => "Allows you to edit pages by adding the edit and save actions. You should probably include this one.",
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"id" => "page-edit",
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"code" => function() {
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global $settings;
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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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* %edit%
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*/
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add_action("edit", function() {
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global $pageindex, $settings, $env;
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$filename = "$env->storage_prefix$env->page.md";
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$page = $env->page;
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$creatingpage = !isset($pageindex->$page);
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if((isset($_GET["newpage"]) and $_GET["newpage"] == "true") or $creatingpage)
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{
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$title = "Creating $env->page";
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}
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else
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{
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$title = "Editing $env->page";
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}
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$pagetext = "";
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if(isset($pageindex->$page))
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{
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$pagetext = file_get_contents($filename);
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}
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if((!$env->is_logged_in and !$settings->anonedits) or // if we aren't logged in and anonymous edits are disbled
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!$settings->editing or// or editing is disabled
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(
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isset($pageindex->$page) and // the page exists
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isset($pageindex->$page->protect) and // the protect property exists
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$pageindex->$page->protect and // the protect property is true
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!$env->is_admin // the user isn't an admin
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)
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)
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{
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if(!$creatingpage)
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{
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// The page already exists - let the user view the page source
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exit(page_renderer::render_main("Viewing source for $env->page", "<p>$settings->sitename does not allow anonymous users to make edits. If you are in fact logged in, then this page is probably protected, and you aren't an administrator or moderator. You can view the source of $env->page below, but you can't edit it.</p><textarea name='content' readonly>$pagetext</textarea>"));
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}
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else
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{
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http_response_code(404);
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exit(page_renderer::render_main("404 - $env->page", "<p>The page <code>$env->page</code> does not exist, but you do not have permission to create it.</p><p>If you haven't already, perhaps you should try <a href='index.php?action=login&returnto=" . rawurlencode($_SERVER["REQUEST_URI"]) . "'>logging in</a>.</p>"));
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}
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}
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$content = "<h1>$title</h1>";
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$page_tags = implode(", ", (!empty($pageindex->{$env->page}->tags)) ? $pageindex->{$env->page}->tags : []);
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if(!$env->is_logged_in and $settings->anonedits)
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{
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$content .= "<p><strong>Warning: You are not logged in! Your IP address <em>may</em> be recorded.</strong></p>";
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}
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$content .= "<form method='post' action='index.php?action=save&page=" . rawurlencode($page) . "&action=save' class='editform'>
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<textarea name='content'>$pagetext</textarea>
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<input type='text' name='tags' value='$page_tags' placeholder='Enter some tags for the page here. Separate them with commas.' title='Enter some tags for the page here. Separate them with commas.' />
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<p>$settings->editing_message</p>
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<input type='submit' value='Save Page' />
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</form>";
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exit(page_renderer::render_main("$title - $settings->sitename", $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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* \__ \ (_| |\ V / __/
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* |___/\__,_| \_/ \___|
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* %save%
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*/
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add_action("save", function() {
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global $pageindex, $settings, $env, $save_preprocessors, $paths;
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if(!$settings->editing)
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{
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header("location: index.php?page=$env->page");
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exit(page_renderer::render_main("Error saving edit", "<p>Editing is currently disabled on this wiki.</p>"));
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}
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if(!$env->is_logged_in and !$settings->anonedits)
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{
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http_response_code(403);
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header("refresh: 5; url=index.php?page=$env->page");
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exit("You are not logged in, so you are not allowed to save pages on $settings->sitename. Redirecting in 5 seconds....");
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}
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$page = $env->page;
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if((
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isset($pageindex->$page) and
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isset($pageindex->page->protect) and
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$pageindex->$page->protect
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) and !$env->is_admin)
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{
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http_response_code(403);
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header("refresh: 5; url=index.php?page=$env->page");
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exit("$env->page is protected, and you aren't logged in as an administrator or moderator. Your edit was not saved. Redirecting in 5 seconds...");
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}
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if(!isset($_POST["content"]))
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{
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http_response_code(400);
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header("refresh: 5; url=index.php?page=$env->page");
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exit("Bad request: No content specified.");
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}
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// Make sure that the directory in which the page needs to be saved exists
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if(!is_dir(dirname("$env->storage_prefix$env->page.md")))
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{
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// Recursively create the directory if needed
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mkdir(dirname("$env->storage_prefix$env->page.md"), null, true);
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}
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// Read in the new page content
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$pagedata = $_POST["content"];
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// Santise it if necessary
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if($settings->clean_raw_html)
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$pagedata = htmlentities($pagedata, ENT_QUOTES);
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// Read in the new page tags, so long as there are actually some tags to read in
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$page_tags = [];
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if(strlen(trim($_POST["tags"])) > 0)
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{
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$page_tags = explode(",", $_POST["tags"]);
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// Trim off all the whitespace
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foreach($page_tags as &$tag)
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$tag = trim($tag);
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}
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// Update the inverted search index
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// Construct an index for the old and new page content
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$oldindex = [];
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$oldpagedata = ""; // We need the old page data in order to pass it to the preprocessor
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if(file_exists("$env->page.md"))
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{
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$oldpagedata = file_get_contents("$env->page.md");
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$oldindex = search::index($oldpagedata);
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}
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$newindex = search::index($pagedata);
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// Compare the indexes of the old and new content
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$additions = [];
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$removals = [];
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search::compare_indexes($oldindex, $newindex, $additions, $removals);
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// Load in the inverted index
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$invindex = search::load_invindex("./invindex.json");
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// Merge the changes into the inverted index
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search::merge_into_invindex($invindex, ids::getid($env->page), $additions, $removals);
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// Save the inverted index back to disk
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search::save_invindex("invindex.json", $invindex);
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if(file_put_contents("$env->storage_prefix$env->page.md", $pagedata) !== false)
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{
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$page = $env->page;
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// Make sure that this page's parents exist
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check_subpage_parents($page);
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// Update the page index
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if(!isset($pageindex->$page))
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{
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$pageindex->$page = new stdClass();
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$pageindex->$page->filename = "$env->page.md";
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}
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$pageindex->$page->size = strlen($_POST["content"]);
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$pageindex->$page->lastmodified = time();
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if($env->is_logged_in)
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$pageindex->$page->lasteditor = utf8_encode($env->user);
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else
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$pageindex->$page->lasteditor = utf8_encode("anonymous");
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$pageindex->$page->tags = $page_tags;
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// A hack to resave the pagedata if the preprocessors have
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// changed it. We need this because the preprocessors *must*
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// run _after_ the pageindex has been updated.
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$pagedata_orig = $pagedata;
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// Execute all the preprocessors
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foreach($save_preprocessors as $func)
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{
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$func($pageindex->$page, $pagedata, $oldpagedata);
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}
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if($pagedata !== $pagedata_orig)
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file_put_contents("$env->storage_prefix$env->page.md", $pagedata);
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file_put_contents($paths->pageindex, json_encode($pageindex, JSON_PRETTY_PRINT));
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if(isset($_GET["newpage"]))
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http_response_code(201);
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else
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http_response_code(200);
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// header("content-type: text/plain");
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header("location: index.php?page=$env->page&edit_status=success&redirect=no");
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exit();
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}
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else
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{
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http_response_code(507);
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exit(page_renderer::render_main("Error saving page - $settings->sitename", "<p>$settings->sitename failed to write your changes to the server's disk. Your changes have not been saved, but you might be able to recover your edit by pressing the back button in your browser.</p>
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<p>Please tell the administrator of this wiki (" . $settings->admindetails["name"] . ") about this problem.</p>"));
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}
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});
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add_help_section("15-editing", "Editing", "<p>To edit a page on $settings->sitename, click the edit button on the top bar. Note that you will probably need to be logged in. If you do not already have an account you will need to ask $settings->sitename's administrator for an account since there is no registration form. Note that the $settings->sitename's administrator may have changed these settings to allow anonymous edits.</p>
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<p>Editing is simple. The edit page has a sizeable box that contains a page's current contents. Once you are done altering it, add or change the comma separated list of tags in the field below the editor and then click save page.</p>
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<p>A reference to the syntax that $settings->sitename supports can be found below.</p>");
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}
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]);
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?>
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