406 lines
15 KiB
PHP
406 lines
15 KiB
PHP
<?php
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/**
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* Name: [Beta] Forum
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* Author: Sein Kraft <mail@seinkraft.info>
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* Alpha <alpha@furries.com.ar>
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* License: GPLv2
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* Description: Rough forum extension
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* Documentation:
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*/
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/*
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Todo:
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*Quote buttons on posts
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*Move delete and quote buttons away from each other
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*Bring us on par with comment extension(post linking, image linking, thumb links, URL autolink)
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*Smiley filter, word filter, etc should work with our extension
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*/
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class Forum extends Extension
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{
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public function onInitExt(InitExtEvent $event)
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{
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global $config, $database;
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// shortcut to latest
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if ($config->get_int("forum_version") < 1) {
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$database->create_table("forum_threads", "
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id SCORE_AIPK,
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sticky SCORE_BOOL NOT NULL DEFAULT SCORE_BOOL_N,
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title VARCHAR(255) NOT NULL,
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user_id INTEGER NOT NULL,
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date SCORE_DATETIME NOT NULL,
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uptodate SCORE_DATETIME NOT NULL,
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FOREIGN KEY (user_id) REFERENCES users(id) ON UPDATE CASCADE ON DELETE RESTRICT
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");
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$database->execute("CREATE INDEX forum_threads_date_idx ON forum_threads(date)", []);
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$database->create_table("forum_posts", "
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id SCORE_AIPK,
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thread_id INTEGER NOT NULL,
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user_id INTEGER NOT NULL,
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date SCORE_DATETIME NOT NULL,
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message TEXT,
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FOREIGN KEY (user_id) REFERENCES users(id) ON UPDATE CASCADE ON DELETE RESTRICT,
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FOREIGN KEY (thread_id) REFERENCES forum_threads (id) ON UPDATE CASCADE ON DELETE CASCADE
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");
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$database->execute("CREATE INDEX forum_posts_date_idx ON forum_posts(date)", []);
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$config->set_int("forum_version", 2);
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$config->set_int("forumTitleSubString", 25);
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$config->set_int("forumThreadsPerPage", 15);
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$config->set_int("forumPostsPerPage", 15);
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$config->set_int("forumMaxCharsPerPost", 512);
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log_info("forum", "extension installed");
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}
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if ($config->get_int("forum_version") < 2) {
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$database->execute("ALTER TABLE forum_threads ADD FOREIGN KEY (user_id) REFERENCES users(id) ON UPDATE CASCADE ON DELETE RESTRICT");
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$database->execute("ALTER TABLE forum_posts ADD FOREIGN KEY (user_id) REFERENCES users(id) ON UPDATE CASCADE ON DELETE RESTRICT");
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$config->set_int("forum_version", 2);
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}
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}
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public function onSetupBuilding(SetupBuildingEvent $event)
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{
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$sb = new SetupBlock("Forum");
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$sb->add_int_option("forumTitleSubString", "Title max long: ");
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$sb->add_int_option("forumThreadsPerPage", "<br>Threads per page: ");
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$sb->add_int_option("forumPostsPerPage", "<br>Posts per page: ");
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$sb->add_int_option("forumMaxCharsPerPost", "<br>Max chars per post: ");
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$event->panel->add_block($sb);
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}
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public function onUserPageBuilding(UserPageBuildingEvent $event)
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{
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global $database;
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$threads_count = $database->get_one("SELECT COUNT(*) FROM forum_threads WHERE user_id=?", [$event->display_user->id]);
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$posts_count = $database->get_one("SELECT COUNT(*) FROM forum_posts WHERE user_id=?", [$event->display_user->id]);
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$days_old = ((time() - strtotime($event->display_user->join_date)) / 86400) + 1;
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$threads_rate = sprintf("%.1f", ($threads_count / $days_old));
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$posts_rate = sprintf("%.1f", ($posts_count / $days_old));
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$event->add_stats("Forum threads: $threads_count, $threads_rate per day");
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$event->add_stats("Forum posts: $posts_count, $posts_rate per day");
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}
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public function onPageRequest(PageRequestEvent $event)
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{
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global $page, $user;
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if ($event->page_matches("forum")) {
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switch ($event->get_arg(0)) {
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case "index":
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$this->show_last_threads($page, $event, $user->is_admin());
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if (!$user->is_anonymous()) {
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$this->theme->display_new_thread_composer($page);
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}
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break;
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case "view":
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$threadID = int_escape($event->get_arg(1));
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$pageNumber = int_escape($event->get_arg(2));
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list($errors) = $this->sanity_check_viewed_thread($threadID);
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if ($errors!=null) {
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$this->theme->display_error(500, "Error", $errors);
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break;
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}
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$this->show_posts($event, $user->is_admin());
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if ($user->is_admin()) {
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$this->theme->add_actions_block($page, $threadID);
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}
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if (!$user->is_anonymous()) {
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$this->theme->display_new_post_composer($page, $threadID);
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}
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break;
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case "new":
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global $page;
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$this->theme->display_new_thread_composer($page);
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break;
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case "create":
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$redirectTo = "forum/index";
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if (!$user->is_anonymous()) {
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list($errors) = $this->sanity_check_new_thread();
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if ($errors!=null) {
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$this->theme->display_error(500, "Error", $errors);
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break;
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}
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$newThreadID = $this->save_new_thread($user);
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$this->save_new_post($newThreadID, $user);
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$redirectTo = "forum/view/".$newThreadID."/1";
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}
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link($redirectTo));
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break;
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case "delete":
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$threadID = int_escape($event->get_arg(1));
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$postID = int_escape($event->get_arg(2));
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if ($user->is_admin()) {
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$this->delete_post($postID);
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}
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("forum/view/".$threadID));
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break;
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case "nuke":
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$threadID = int_escape($event->get_arg(1));
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if ($user->is_admin()) {
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$this->delete_thread($threadID);
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}
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("forum/index"));
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break;
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case "answer":
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$threadID = int_escape($_POST["threadID"]);
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$total_pages = $this->get_total_pages_for_thread($threadID);
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if (!$user->is_anonymous()) {
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list($errors) = $this->sanity_check_new_post();
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if ($errors!=null) {
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$this->theme->display_error(500, "Error", $errors);
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break;
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}
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$this->save_new_post($threadID, $user);
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}
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("forum/view/".$threadID."/".$total_pages));
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break;
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default:
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$page->set_mode(PageMode::REDIRECT);
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$page->set_redirect(make_link("forum/index"));
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//$this->theme->display_error(400, "Invalid action", "You should check forum/index.");
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break;
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}
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}
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}
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private function get_total_pages_for_thread(int $threadID)
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{
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global $database, $config;
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$result = $database->get_row("SELECT COUNT(1) AS count FROM forum_posts WHERE thread_id = ?", [$threadID]);
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return ceil($result["count"] / $config->get_int("forumPostsPerPage"));
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}
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private function sanity_check_new_thread()
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{
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$errors = null;
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if (!array_key_exists("title", $_POST)) {
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$errors .= "<div id='error'>No title supplied.</div>";
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} elseif (strlen($_POST["title"]) == 0) {
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$errors .= "<div id='error'>You cannot have an empty title.</div>";
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} elseif (strlen(html_escape($_POST["title"])) > 255) {
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$errors .= "<div id='error'>Your title is too long.</div>";
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}
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if (!array_key_exists("message", $_POST)) {
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$errors .= "<div id='error'>No message supplied.</div>";
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} elseif (strlen($_POST["message"]) == 0) {
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$errors .= "<div id='error'>You cannot have an empty message.</div>";
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}
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return [$errors];
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}
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private function sanity_check_new_post()
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{
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$errors = null;
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if (!array_key_exists("threadID", $_POST)) {
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$errors = "<div id='error'>No thread ID supplied.</div>";
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} elseif (strlen($_POST["threadID"]) == 0) {
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$errors = "<div id='error'>No thread ID supplied.</div>";
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} elseif (is_numeric($_POST["threadID"])) {
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if (!array_key_exists("message", $_POST)) {
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$errors .= "<div id='error'>No message supplied.</div>";
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} elseif (strlen($_POST["message"]) == 0) {
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$errors .= "<div id='error'>You cannot have an empty message.</div>";
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}
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}
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return [$errors];
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}
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private function sanity_check_viewed_thread(int $threadID)
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{
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$errors = null;
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if (!$this->threadExists($threadID)) {
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$errors = "<div id='error'>Inexistent thread.</div>";
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}
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return [$errors];
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}
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private function get_thread_title(int $threadID)
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{
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global $database;
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$result = $database->get_row("SELECT t.title FROM forum_threads AS t WHERE t.id = ? ", [$threadID]);
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return $result["title"];
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}
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private function show_last_threads(Page $page, PageRequestEvent $event, $showAdminOptions = false)
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{
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global $config, $database;
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$pageNumber = $event->get_arg(1);
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$threadsPerPage = $config->get_int('forumThreadsPerPage', 15);
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$totalPages = ceil($database->get_one("SELECT COUNT(*) FROM forum_threads") / $threadsPerPage);
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if (is_null($pageNumber) || !is_numeric($pageNumber)) {
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$pageNumber = 0;
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} elseif ($pageNumber <= 0) {
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$pageNumber = 0;
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} elseif ($pageNumber >= $totalPages) {
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$pageNumber = $totalPages - 1;
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} else {
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$pageNumber--;
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}
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$threads = $database->get_all(
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"SELECT f.id, f.sticky, f.title, f.date, f.uptodate, u.name AS user_name, u.email AS user_email, u.class AS user_class, sum(1) - 1 AS response_count ".
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"FROM forum_threads AS f ".
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"INNER JOIN users AS u ".
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"ON f.user_id = u.id ".
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"INNER JOIN forum_posts AS p ".
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"ON p.thread_id = f.id ".
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"GROUP BY f.id, f.sticky, f.title, f.date, u.name, u.email, u.class ".
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"ORDER BY f.sticky ASC, f.uptodate DESC LIMIT :limit OFFSET :offset",
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["limit"=>$threadsPerPage, "offset"=>$pageNumber * $threadsPerPage]
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);
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$this->theme->display_thread_list($page, $threads, $showAdminOptions, $pageNumber + 1, $totalPages);
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}
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private function show_posts(PageRequestEvent $event, $showAdminOptions = false)
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{
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global $config, $database;
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$threadID = $event->get_arg(1);
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$pageNumber = $event->get_arg(2);
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$postsPerPage = $config->get_int('forumPostsPerPage', 15);
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$totalPages = ceil($database->get_one("SELECT COUNT(*) FROM forum_posts WHERE thread_id = ?", [$threadID]) / $postsPerPage);
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$threadTitle = $this->get_thread_title($threadID);
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if (is_null($pageNumber) || !is_numeric($pageNumber)) {
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$pageNumber = 0;
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} elseif ($pageNumber <= 0) {
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$pageNumber = 0;
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} elseif ($pageNumber >= $totalPages) {
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$pageNumber = $totalPages - 1;
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} else {
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$pageNumber--;
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}
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$posts = $database->get_all(
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"SELECT p.id, p.date, p.message, u.name as user_name, u.email AS user_email, u.class AS user_class ".
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"FROM forum_posts AS p ".
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"INNER JOIN users AS u ".
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"ON p.user_id = u.id ".
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"WHERE thread_id = :thread_id ".
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"ORDER BY p.date ASC ".
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"LIMIT :limit OFFSET :offset",
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["thread_id"=>$threadID, "offset"=>$pageNumber * $postsPerPage, "limit"=>$postsPerPage]
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);
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$this->theme->display_thread($posts, $showAdminOptions, $threadTitle, $threadID, $pageNumber + 1, $totalPages);
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}
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private function save_new_thread(User $user)
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{
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$title = html_escape($_POST["title"]);
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$sticky = !empty($_POST["sticky"]) ? html_escape($_POST["sticky"]) : "N";
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if ($sticky == "") {
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$sticky = "N";
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}
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global $database;
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$database->execute(
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"
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INSERT INTO forum_threads
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(title, sticky, user_id, date, uptodate)
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VALUES
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(?, ?, ?, now(), now())",
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[$title, $sticky, $user->id]
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);
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$threadID = $database->get_last_insert_id("forum_threads_id_seq");
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log_info("forum", "Thread {$threadID} created by {$user->name}");
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return $threadID;
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}
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private function save_new_post(int $threadID, User $user)
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{
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global $config;
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$userID = $user->id;
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$message = html_escape($_POST["message"]);
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$max_characters = $config->get_int('forumMaxCharsPerPost');
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$message = substr($message, 0, $max_characters);
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global $database;
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$database->execute("INSERT INTO forum_posts
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(thread_id, user_id, date, message)
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VALUES
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(?, ?, now(), ?)", [$threadID, $userID, $message]);
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$postID = $database->get_last_insert_id("forum_posts_id_seq");
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log_info("forum", "Post {$postID} created by {$user->name}");
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$database->execute("UPDATE forum_threads SET uptodate=now() WHERE id=?", [$threadID]);
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}
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private function retrieve_posts(int $threadID, int $pageNumber)
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{
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global $database, $config;
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$postsPerPage = $config->get_int('forumPostsPerPage', 15);
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return $database->get_all(
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"SELECT p.id, p.date, p.message, u.name as user_name, u.email AS user_email, u.class AS user_class ".
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"FROM forum_posts AS p ".
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"INNER JOIN users AS u ".
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"ON p.user_id = u.id ".
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"WHERE thread_id = :thread_id ".
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"ORDER BY p.date ASC ".
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"LIMIT :limit OFFSET :offset ",
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["thread_id"=>$threadID, "offset"=>($pageNumber - 1) * $postsPerPage, "limit"=>$postsPerPage]
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);
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}
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private function delete_thread(int $threadID)
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{
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global $database;
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$database->execute("DELETE FROM forum_threads WHERE id = ?", [$threadID]);
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$database->execute("DELETE FROM forum_posts WHERE thread_id = ?", [$threadID]);
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}
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private function delete_post(int $postID)
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{
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global $database;
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$database->execute("DELETE FROM forum_posts WHERE id = ?", [$postID]);
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}
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private function threadExists(int $threadID)
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{
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global $database;
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$result=$database->get_one("SELECT EXISTS (SELECT * FROM forum_threads WHERE id= ?)", [$threadID]);
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if ($result==1) {
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return true;
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} else {
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return false;
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}
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}
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}
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