add experimental JSON api

diff --git a/api/index.php b/api/index.php
new file mode 100644 (file)
index 0000000..ce30b28
--- /dev/null
+++ b/api/index.php
@@ -0,0 +1,180 @@
+<?php
+
+       /* This is experimental JSON-based API. It has to be manually enabled:
+        * 
+        * Add define('_JSON_API_ENABLED', true) to config.php
+        */
+
+       error_reporting(E_ERROR | E_PARSE);
+
+       require_once "../config.php";
+       
+       require_once "../db.php";
+       require_once "../db-prefs.php";
+       require_once "../functions.php";
+
+       if (!defined('_JSON_API_ENABLED')) {
+               print json_encode(array("error" => "API_DISABLED"));
+               return;
+       }
+
+       $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME); 
+
+       $session_expire = SESSION_EXPIRE_TIME; //seconds
+       $session_name = (!defined('TTRSS_SESSION_NAME')) ? "ttrss_sid_api" : TTRSS_SESSION_NAME . "_api";
+
+       session_start();
+
+       if (!$link) {
+               if (DB_TYPE == "mysql") {
+                       print mysql_error();
+               }
+               // PG seems to display its own errors just fine by default.             
+               return;
+       }
+
+       init_connection($link);
+
+       $op = db_escape_string($_REQUEST["op"]);
+
+//     header("Content-Type: application/json");
+
+       if (!$_SESSION["uid"] && $op != "login" && $op != "isLoggedIn") {
+               print json_encode(array("error" => 'NOT_LOGGED_IN'));
+               return;
+       }
+
+/*     TODO: add pref key to disable/enable API
+       if ($_SESSION["uid"] && !get_pref($link, 'API_ENABLED')) {
+               print json_encode(array("error" => 'API_DISABLED'));
+               return;
+       } */
+
+       switch ($op) {
+               case "getVersion":
+                       $rv = array("version" => VERSION);
+                       print json_encode($rv);
+               break;
+               case "login":
+                       $login = db_escape_string($_REQUEST["user"]);
+                       $password = db_escape_string($_REQUEST["password"]);
+
+                       if (authenticate_user($link, $login, $password)) {
+                               print json_encode(array("uid" => $_SESSION["uid"]));
+                       } else {
+                               print json_encode(array("uid" => 0));
+                       }
+
+                       break;
+               case "logout":
+                       logout_user();
+                       print json_encode(array("uid" => 0));
+                       break;
+               case "isLoggedIn":
+                       print json_encode(array("status" => $_SESSION["uid"] != ''));
+                       break;
+               case "getFeeds":
+                       $cat_id = db_escape_string($_REQUEST["cat_id"]);
+                       $unread_only = (bool)db_escape_string($_REQUEST["unread_only"]);
+
+                       if (!$cat_id) {
+                               $result = db_query($link, "SELECT 
+                                       id, feed_url, cat_id, title, ".
+                                               SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
+                                               FROM ttrss_feeds WHERE owner_uid = " . $_SESSION["uid"]);
+                       } else {
+                               $result = db_query($link, "SELECT 
+                                       id, feed_url, cat_id, title, ".
+                                               SUBSTRING_FOR_DATE."(last_updated,1,19) AS last_updated
+                                               FROM ttrss_feeds WHERE 
+                                                       cat_id = '$cat_id' AND owner_uid = " . $_SESSION["uid"]);
+                       }
+
+                       $feeds = array();
+
+                       while ($line = db_fetch_assoc($result)) {
+
+                               $unread = getFeedUnread($link, $line["id"]);
+
+                               if ($unread || !$unread_only) {
+
+                                       $line_struct = array(
+                                                       "feed_url" => $line["feed_url"],
+                                                       "title" => $line["title"],
+                                                       "id" => (int)$line["id"],
+                                                       "unread" => (int)$unread,
+                                                       "cat_id" => (int)$line["cat_id"],
+                                                       "last_updated" => strtotime($line["last_updated"])
+                                               );
+       
+                                       array_push($feeds, $line_struct);
+                               }
+                       }
+
+                       print json_encode($feeds);
+
+                       break;
+               case "getCategories":
+                       $result = db_query($link, "SELECT 
+                                       id, title FROM ttrss_feed_categories 
+                               WHERE owner_uid = " . 
+                               $_SESSION["uid"]);
+
+                       $cats = array();
+
+                       while ($line = db_fetch_assoc($result)) {
+                               $unread = getFeedUnread($link, $line["id"], true);
+                               array_push($cats, array($line["id"] => 
+                                       array("title" => $line["title"], "unread" => $unread)));
+                       }
+
+                       print json_encode($cats);
+                       break;
+               case "getHeadlines":
+                       $feed_id = db_escape_string($_REQUEST["feed_id"]);
+                       $limit = (int)db_escape_string($_REQUEST["limit"]);
+                       $filter = db_escape_string($_REQUEST["filter"]);
+                       $is_cat = (bool)db_escape_string($_REQUEST["is_cat"]);
+                       $show_except = (bool)db_escape_string($_REQUEST["show_excerpt"]);
+
+                       /* do not rely on params below */
+
+                       $search = db_escape_string($_REQUEST["search"]);
+                       $search_mode = db_escape_string($_REQUEST["search_mode"]);
+                       $match_on = db_escape_string($_REQUEST["match_on"]);
+                       
+                       $qfh_ret = queryFeedHeadlines($link, $feed_id, $limit, 
+                               $view_mode, $is_cat, $search, $search_mode, $match_on);
+
+                       $result = $qfh_ret[0];
+                       $feed_title = $qfh_ret[1];
+
+                       $headlines = array();
+
+                       while ($line = db_fetch_assoc($result)) {
+                               $is_updated = ($line["last_read"] == "" && 
+                                       ($line["unread"] != "t" && $line["unread"] != "1"));
+
+                               $headline_row = array(
+                                               "id" => (int)$line["id"],
+                                               "unread" => sql_bool_to_bool($line["unread"]),
+                                               "marked" => sql_bool_to_bool($line["marked"]),
+                                               "updated" => strtotime($line["updated"]),
+                                               "is_updated" => $is_updated,
+                                               "title" => $line["title"],
+                                               "feed_id" => $line["feed_id"],
+                                       );
+
+                               if ($show_except) $headline_row["excerpt"] = $line["content_preview"];
+                       
+                               array_push($headlines, $headline_row);
+                       }
+
+                       print json_encode($headlines);
+
+                       break;
+       }
+
+       db_close($link);
+       
+?>