Parametrizable json_export for bbs topics

export/bbs.php

@@ -0,0 +1,142 @@
+<?php
+/*
+ *  Simple json export for bbs topics and comments
+ *
+ *  Usage: /export/bbs.php?topic_id=<TOPIC_ID>&from=<DATETIME>&to=<DATETIME>&limit=<LIMIT>&offset=<OFFSET>
+ *
+ *  If dates (from/to) are omitted - the whole thread is exported
+ *
+ */
+
+// TODO: add hash to check if a bbs has been updated and just export updated information
+// TODO: zip/gzip the exported data to speed up transfer
+
+header("Content-type: text/json");
+include('../include/auth.php');
+
+// TODO: dry (copied from include/misc.php)
+$thread_categories = array(
+    0 => "general",
+    2 => "gfx",
+    3 => "code",
+    4 => "music",
+    5 => "parties",
+    6 => "offtopic",
+    1 => "residue",
+);
+
+// get GET parameters
+$from = (isset($_GET['from'])? $_GET['from'] : FALSE); // default: last week
+$to = (isset($_GET['to'])? $_GET['to'] : FALSE); // default: today
+
+$limit = (isset($_GET['limit'])? $_GET['limit'] : 1000);
+$offset = (isset($_GET['offset'])? $_GET['offset'] : 0);
+$topic_id = (isset($_GET['topic_id'])? $_GET['topic_id'] : FALSE);
+
+// Limit every request to a maximum of 100 exported comments
+if ((int)$limit > 1000)
+{
+    $limit = 1000;
+}
+
+// opening DB
+$dbl = mysql_connect($db['host'], $db['user'], $db['password']);
+
+if (!$dbl)
+{
+	die('SQL error... sorry ! ^^; I\'m on it !');
+}
+
+mysql_select_db($db['database'], $dbl);
+
+// prepare data
+$output = new stdClass();
+$output->info = new stdClass();
+$output->info->title = 'pouet.net prod export';
+$output->info->date = date('Y-m-d H:i:s');
+$output->info->search_params = new stdClass();
+
+$output->info->search_params->topic_id = $topic_id;
+$output->info->search_params->limit = $limit;
+$output->info->search_params->offset = $offset;
+$output->info->search_params->from = $from;
+$output->info->search_params->to = $to;
+
+if (!$topic_id)
+{
+    echo json_encode($output);
+    exit;
+}
+
+$query = "SELECT * FROM bbs_topics WHERE id=".(int)$topic_id;
+$result = mysql_query($query);
+$topic = mysql_fetch_object($result);
+
+$output->topic = new stdClass();
+$output->topic->name = $topic->topic;
+
+if (array_key_exists($topic->category, $thread_categories))
+{
+    $output->topic->category = $thread_categories[$topic->category];
+}
+else
+{
+    $output->topic->category = FALSE;
+}
+$output->topic->closed = $topic->closed;
+$output->topic->first_post = $topic->firstpost;
+$output->topic->last_post = $topic->lastpost;
+
+// get author
+$query = "SELECT nickname, avatar, id FROM users WHERE id=".$topic->userfirstpost;
+$r = mysql_query($query);
+
+if ($r && $author = mysql_fetch_object($r))
+{
+    $output->topic->author = new stdClass();
+    $output->topic->author->nickname = $author->nickname;
+    $output->topic->author->scene_id = $author->id;
+}
+
+$query = "SELECT bbs_posts.id, bbs_posts.post as post, bbs_posts.author as scene_id, bbs_posts.added as date, users.nickname as nickname, users.avatar, users.level FROM bbs_posts, users WHERE bbs_posts.author = users.id AND bbs_posts.topic=".(int)$topic_id;
+
+// add start point
+if ($from) {
+    $query .= " AND added >= '".mysql_real_escape_string($from)."'";
+}
+
+// add end point
+if ($to) {
+    $query .= " AND added <= '".mysql_real_escape_string($to)."'";
+}
+
+// add order and limit
+$query .= " ORDER BY bbs_posts.added ASC LIMIT ".(int)$limit.' OFFSET '.(int)$offset;
+
+$result = mysql_query($query);
+
+$output->comments = array();
+
+$output->topic->total_comments = (int)$topic->count;
+$output->topic->exported_comments = mysql_num_rows($result);
+
+while (is_resource($result) && $row = mysql_fetch_object($result))
+{
+    $comment = new stdClass();
+    $comment->post = $row->post;
+    $comment->date = $row->date;
+    $comment->author = new stdClass();
+    $comment->author->nickname = $row->nickname;
+    $comment->author->scene_id = $row->scene_id;
+
+    $output->comments[] = $comment;
+}
+
+// closing DB
+if (isset($dbl))
+{
+	mysql_close($dbl);
+}
+
+echo json_encode($output);
+?>