include/api.php

   1 <?php
   2         require_once("bbcode.php");
   3         require_once("datetime.php");
   4
   5         /*
   6          * Twitter-Like API
   7          *
   8          */
   9
  10         $API = Array();
  11
  12
  13
  14         function api_date($str){
  15                 //Wed May 23 06:01:13 +0000 2007
  16                 return datetime_convert('UTC', 'UTC', $str, "D M d h:i:s +0000 Y" );
  17         }
  18
  19
  20         function api_register_func($path, $func, $auth=false){
  21                 global $API;
  22                 $API[$path] = array('func'=>$func,
  23                                                         'auth'=>$auth);
  24         }
  25
  26         /**
  27          * Simple HTTP Login
  28          */
  29         function api_login(&$a){
  30                 if (!isset($_SERVER['PHP_AUTH_USER'])) {
  31                     header('WWW-Authenticate: Basic realm="Friendika"');
  32                     header('HTTP/1.0 401 Unauthorized');
  33                     die('This api require login');
  34                 }
  35
  36                 $user = $_SERVER['PHP_AUTH_USER'];
  37                 $encrypted = hash('whirlpool',trim($_SERVER['PHP_AUTH_PW']));
  38
  39
  40                         /**
  41                          *  next code from mod/auth.php. needs better solution
  42                          */
  43
  44                 // process normal login request
  45
  46                 $r = q("SELECT * FROM `user` WHERE ( `email` = '%s' OR `nickname` = '%s' )
  47                         AND `password` = '%s' AND `blocked` = 0 AND `verified` = 1 LIMIT 1",
  48                         dbesc(trim($user)),
  49                         dbesc(trim($user)),
  50                         dbesc($encrypted)
  51                 );
  52                 if(count($r)){
  53                         $record = $r[0];
  54                 } else {
  55                     header('WWW-Authenticate: Basic realm="Friendika"');
  56                     header('HTTP/1.0 401 Unauthorized');
  57                     die('This api require login');
  58                 }
  59                 $_SESSION['uid'] = $record['uid'];
  60                 $_SESSION['theme'] = $record['theme'];
  61                 $_SESSION['authenticated'] = 1;
  62                 $_SESSION['page_flags'] = $record['page-flags'];
  63                 $_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $record['nickname'];
  64                 $_SESSION['addr'] = $_SERVER['REMOTE_ADDR'];
  65
  66                 //notice( t("Welcome back ") . $record['username'] . EOL);
  67                 $a->user = $record;
  68
  69                 if(strlen($a->user['timezone'])) {
  70                         date_default_timezone_set($a->user['timezone']);
  71                         $a->timezone = $a->user['timezone'];
  72                 }
  73
  74                 $r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1",
  75                         intval($_SESSION['uid']));
  76                 if(count($r)) {
  77                         $a->contact = $r[0];
  78                         $a->cid = $r[0]['id'];
  79                         $_SESSION['cid'] = $a->cid;
  80                 }
  81                 q("UPDATE `user` SET `login_date` = '%s' WHERE `uid` = %d LIMIT 1",
  82                         dbesc(datetime_convert()),
  83                         intval($_SESSION['uid'])
  84                 );
  85
  86                 call_hooks('logged_in', $a->user);
  87
  88                 header('X-Account-Management-Status: active; name="' . $a->user['username'] . '"; id="' . $a->user['nickname'] .'"');
  89         }
  90
  91         /**************************
  92          *  MAIN API ENTRY POINT  *
  93          **************************/
  94         function api_call(&$a){
  95                 GLOBAL $API;
  96                 foreach ($API as $p=>$info){
  97                         if (strpos($a->query_string, $p)===0){
  98                                 #unset($_SERVER['PHP_AUTH_USER']);
  99                                 if ($info['auth']===true && local_user()===false) {
 100                                                 api_login($a);
 101                                 }
 102
 103                                 $type="json";
 104                                 if (strpos($a->query_string, ".xml")>0) $type="xml";
 105                                 if (strpos($a->query_string, ".json")>0) $type="json";
 106                                 if (strpos($a->query_string, ".rss")>0) $type="rss";
 107                                 if (strpos($a->query_string, ".atom")>0) $type="atom";
 108
 109                                 $r = call_user_func($info['func'], $a, $type);
 110                                 if ($r===false) return;
 111
 112                                 switch($type){
 113                                         case "xml":
 114                                                 $r = mb_convert_encoding($r, "UTF-8",mb_detect_encoding($r));
 115                                                 header ("Content-Type: text/xml");
 116                                                 return '<?xml version="1.0" encoding="UTF-8"?>'."\n".$r;
 117                                                 break;
 118                                         case "json":
 119                                                 header ("Content-Type: application/json");
 120                                                 return json_encode($r);
 121                                                 break;
 122                                         case "rss":
 123                                                 header ("Content-Type: application/rss+xml");
 124                                                 return '<?xml version="1.0" encoding="UTF-8"?>'."\n".$r;
 125                                                 break;
 126                                         case "atom":
 127                                                 #header ("Content-Type: application/atom+xml");
 128                                                 return '<?xml version="1.0" encoding="UTF-8"?>'."\n".$r;
 129                                                 break;
 130
 131                                 }
 132                                 //echo "<pre>"; var_dump($r); die();
 133                         }
 134                 }
 135                 return false;
 136         }
 137
 138         /**
 139          * RSS extra info
 140          */
 141         function api_rss_extra(&$a, $arr, $user_info){
 142                 if (is_null($user_info)) $user_info = api_get_user($a);
 143                 $arr['$rss'] = array(
 144                         'alternate' => $user_info['url'],
 145                         'self' => $a->get_baseurl(). "/". $a->query_string,
 146                         'updated' => api_date(null),
 147                         'language' => $user_info['language'],
 148                         'logo'  => $a->get_baseurl()."/images/friendika-32.png",
 149                 );
 150
 151                 return $arr;
 152         }
 153
 154         /**
 155          * Returns user info array.
 156          */
 157         function api_get_user(&$a){
 158                 $user = null;
 159                 $extra_query = "";
 160                 if(x($_GET, 'user_id')) {
 161                         $user = intval($_GET['user_id']);
 162                         $extra_query = "AND `contact`.`id` = %d ";
 163                 }
 164                 if(x($_GET, 'screen_name')) {
 165                         $user = dbesc($_GET['screen_name']);
 166                         $extra_query = "AND `contact`.`nick` = '%s' ";
 167                 }
 168
 169                 if ($user===null){
 170                         list($user, $null) = explode(".",$a->argv[3]);
 171                         if(is_numeric($user)){
 172                                 $user = intval($user);
 173                                 $extra_query = "AND `contact`.`id` = %d ";
 174                         } else {
 175                                 $user = dbesc($user);
 176                                 $extra_query = "AND `contact`.`nick` = '%s' ";
 177                         }
 178                 }
 179
 180                 if ($user==='') {
 181                         if (local_user()===false) {
 182                                 api_login($a); return False;
 183                         } else {
 184                                 $user = $_SESSION['uid'];
 185                                 $extra_query = "AND `user`.`uid` = %d ";
 186                         }
 187
 188                 }
 189
 190
 191                 // user info
 192                 $uinfo = q("SELECT *, `contact`.`id` as `cid` FROM `user`, `contact`
 193                                 WHERE `user`.`uid`=`contact`.`uid` AND `contact`.`self`=1
 194                                 $extra_query",
 195                                 $user
 196                 );
 197                 if (count($uinfo)==0) {
 198                         return False;
 199                 }
 200
 201                 // count public wall messages
 202                 $r = q("SELECT COUNT(`id`) as `count` FROM `item`
 203                                 WHERE  `uid` = %d
 204                                 AND `type`='wall'
 205                                 AND `allow_cid`='' AND `allow_gid`='' AND `deny_cid`='' AND `deny_gid`=''",
 206                                 intval($uinfo[0]['uid'])
 207                 );
 208                 $countitms = $r[0]['count'];
 209
 210                 // count friends
 211                 $r = q("SELECT COUNT(`id`) as `count` FROM `contact`
 212                                 WHERE  `uid` = %d
 213                                 AND `self`=0 AND `blocked`=0",
 214                                 intval($uinfo[0]['uid'])
 215                 );
 216                 $countfriends = $r[0]['count'];
 217
 218
 219                 $ret = Array(
 220                         'id' => $uinfo[0]['cid'],
 221                         'name' => $uinfo[0]['username'],
 222                         'screen_name' => $uinfo[0]['nickname'],
 223                         'location' => $uinfo[0]['default-location'],
 224                         'profile_image_url' => $uinfo[0]['micro'],
 225                         'url' => $uinfo[0]['url'],
 226                         'protected' => false,   #
 227                         'friends_count' => $countfriends,
 228                         'created_at' => api_date($uinfo[0]['created']),
 229                         'utc_offset' => 0, #XXX: fix me
 230                         'time_zone' => $uinfo[0]['timezone'],
 231                         'geo_enabled' => false,
 232                         'statuses_count' => $countitms, #XXX: fix me
 233                         'lang' => 'en', #XXX: fix me
 234                         'description' => '',
 235                         'followers_count' => $countfriends, #XXX: fix me
 236                         'favourites_count' => 0,
 237                         'contributors_enabled' => false,
 238                         'follow_request_sent' => false,
 239                         'profile_background_color' => 'cfe8f6',
 240                         'profile_text_color' => '000000',
 241                         'profile_link_color' => 'FF8500',
 242                         'profile_sidebar_fill_color' =>'AD0066',
 243                         'profile_sidebar_border_color' => 'AD0066',
 244                         'profile_background_image_url' => '',
 245                         'profile_background_tile' => false,
 246                         'profile_use_background_image' => false,
 247                         'notifications' => false,
 248                         'verified' => true, #XXX: fix me
 249                         'followers' => '', #XXX: fix me
 250                         #'status' => null
 251                 );
 252
 253                 return $ret;
 254
 255         }
 256
 257         /**
 258          * apply xmlify() to all values of array $val, recursively
 259          */
 260         function api_xmlify($val){
 261                 if (is_bool($val)) return $val?"true":"false";
 262                 if (is_array($val)) return array_map('api_xmlify', $val);
 263                 return xmlify($val);
 264         }
 265
 266         /**
 267          *  load api $templatename for $type and replace $data array
 268          */
 269         function api_apply_template($templatename, $type, $data){
 270                 switch($type){
 271                         case "rss":
 272                         case "atom":
 273                         case "xml":
 274                                 $data = api_xmlify($data);
 275                                 $tpl = get_markup_template("api_".$templatename."_".$type.".tpl");
 276                                 $ret = replace_macros($tpl, $data);
 277                                 break;
 278                         case "json":
 279                                 $ret = $data;
 280                                 break;
 281                 }
 282                 return $ret;
 283         }
 284
 285         /**
 286          ** TWITTER API
 287          */
 288
 289         /**
 290          * Returns an HTTP 200 OK response code and a representation of the requesting user if authentication was successful;
 291          * returns a 401 status code and an error message if not.
 292          * http://developer.twitter.com/doc/get/account/verify_credentials
 293          */
 294         function api_account_verify_credentials(&$a, $type){
 295                 if (local_user()===false) return false;
 296                 $user_info = api_get_user($a);
 297
 298                 return api_apply_template("user", $type, array('$user' => $user_info));
 299
 300         }
 301         api_register_func('api/account/verify_credentials','api_account_verify_credentials', true);
 302
 303
 304         // TODO - media uploads and alternate 'source'
 305
 306         function api_post_message(&$a, $type) {
 307                 if (local_user()===false) return false;
 308                 $user_info = api_get_user($a);
 309
 310                 // convert $_POST array items to the form we use for web posts.
 311
 312                 $_POST['body'] = urldecode($_POST['status']);
 313                 $_POST['parent'] = $_POST['in_reply_to_status_id'];
 314                 if($_POST['lat'] && $_POST['long'])
 315                         $_POST['coord'] = sprintf("%s %s",$_POST['lat'],$_POST['long']);
 316                 $_POST['profile_uid'] = local_user();
 317                 if($_POST['parent'])
 318                         $_POST['type'] = 'net-comment';
 319                 else
 320                         $_POST['type'] = 'wall';
 321
 322                 // set this so that the item_post() function is quiet and doesn't redirect or emit json
 323
 324                 $_POST['api_source'] = true;
 325
 326                 // call out normal post function
 327
 328                 require_once('mod/item.php');
 329                 item_post($a);
 330
 331                 // this should output the last post (the one we just posted).
 332                 return api_users_show();
 333         }
 334         api_register_func('api/statuses/update','api_statuses_update', true);
 335
 336
 337         /**
 338          * Returns extended information of a given user, specified by ID or screen name as per the required id parameter.
 339          * The author's most recent status will be returned inline.
 340          * http://developer.twitter.com/doc/get/users/show
 341          */
 342         function api_users_show(&$a, $type){
 343                 $user_info = api_get_user($a);
 344                 // get last public wall message
 345                 $lastwall = q("SELECT `item`.*, `i`.`contact-id` as `reply_uid`, `i`.`nick` as `reply_author`
 346                                 FROM `item`, `contact`,
 347                                         (SELECT `item`.`id`, `item`.`contact-id`, `contact`.`nick` FROM `item`,`contact` WHERE `contact`.`id`=`item`.`contact-id`) as `i`
 348                                 WHERE `item`.`contact-id` = %d
 349                                         AND `i`.`id` = `item`.`parent`
 350                                         AND `contact`.`id`=`item`.`contact-id` AND `contact`.`self`=1
 351                                         AND `type`!='activity'
 352                                         AND `item`.`allow_cid`='' AND `item`.`allow_gid`='' AND `item`.`deny_cid`='' AND `item`.`deny_gid`=''
 353                                 ORDER BY `created` DESC
 354                                 LIMIT 1",
 355                                 intval($user_info['id'])
 356                 );
 357
 358                 if (count($lastwall)>0){
 359                         $lastwall = $lastwall[0];
 360
 361                         $in_reply_to_status_id = '';
 362                         $in_reply_to_user_id = '';
 363                         $in_reply_to_screen_name = '';
 364                         if ($lastwall['parent']!=$lastwall['id']) {
 365                                 $in_reply_to_status_id=$lastwall['parent'];
 366                                 $in_reply_to_user_id = $lastwall['reply_uid'];
 367                                 $in_reply_to_screen_name = $lastwall['reply_author'];
 368                         }
 369                         $user_info['status'] = array(
 370                                 'created_at' => api_date($lastwall['created']),
 371                                 'id' => $lastwall['contact-id'],
 372                                 'text' => strip_tags(bbcode($lastwall['body'])),
 373                                 'source' => 'web',
 374                                 'truncated' => false,
 375                                 'in_reply_to_status_id' => $in_reply_to_status_id,
 376                                 'in_reply_to_user_id' => $in_reply_to_user_id,
 377                                 'favorited' => false,
 378                                 'in_reply_to_screen_name' => $in_reply_to_screen_name,
 379                                 'geo' => '',
 380                                 'coordinates' => $lastwall['coord'],
 381                                 'place' => $lastwall['location'],
 382                                 'contributors' => ''
 383                         );
 384                 }
 385                 return  api_apply_template("user", $type, array('$user' => $user_info));
 386
 387         }
 388         api_register_func('api/users/show','api_users_show');
 389
 390         /**
 391          *
 392          * http://developer.twitter.com/doc/get/statuses/home_timeline
 393          *
 394          * TODO: Optional parameters
 395          * TODO: Add reply info
 396          */
 397         function api_statuses_home_timeline(&$a, $type){
 398                 if (local_user()===false) return false;
 399
 400                 $user_info = api_get_user($a);
 401
 402                 // get last newtork messages
 403                 $sql_extra = " AND `item`.`parent` IN ( SELECT `parent` FROM `item` WHERE `id` = `parent` ) ";
 404
 405                 $r = q("SELECT `item`.*, `item`.`id` AS `item_id`,
 406                         `contact`.`name`, `contact`.`photo`, `contact`.`url`, `contact`.`rel`,
 407                         `contact`.`network`, `contact`.`thumb`, `contact`.`dfrn-id`, `contact`.`self`,
 408                         `contact`.`id` AS `cid`, `contact`.`uid` AS `contact-uid`
 409                         FROM `item`, `contact`, `user`
 410                         WHERE `item`.`contact-id` = %d AND `user`.`uid` = `item`.`uid`
 411                         AND `item`.`visible` = 1 AND `item`.`deleted` = 0
 412                         AND `contact`.`id` = `item`.`contact-id`
 413                         AND `contact`.`blocked` = 0 AND `contact`.`pending` = 0
 414                         $sql_extra
 415                         ORDER BY `item`.`created` DESC LIMIT %d ,%d ",
 416                         intval($user_info['id']),
 417                         0,20
 418                 );
 419                 $ret = Array();
 420
 421                 foreach($r as $item) {
 422                         $status = array(
 423                                 'created_at'=> api_date($item['created']),
 424                                 'id'            => $item['id'],
 425                                 'text'          => strip_tags(bbcode($item['body'])),
 426                                 'html'          => bbcode($item['body']),
 427                                 'source'        => 'web',
 428                                 'url'           => ($item['plink']!=''?$item['plink']:$item['author-link']),
 429                                 'truncated' => False,
 430                                 'in_reply_to_status_id' => ($item['parent']!=$item['id']?$item['parent']:''),
 431                                 'in_reply_to_user_id' => '',
 432                                 'favorited' => false,
 433                                 'in_reply_to_screen_name' => '',
 434                                 'geo' => '',
 435                                 'coordinates' => $item['coord'],
 436                                 'place' => $item['location'],
 437                                 'contributors' => '',
 438                                 'annotations'  => '',
 439                                 'entities'  => '',
 440                                 'user' =>  $user_info,
 441                                 'objecttype' => $item['object-type'],
 442                                 'verb' => $item['verb'],
 443                                 'self' => $a->get_baseurl()."/api/statuses/show/".$ite['id'].".".$type,
 444                                 'edit' => $a->get_baseurl()."/api/statuses/show/".$ite['id'].".".$type,
 445                         );
 446                         $ret[]=$status;
 447                 };
 448
 449                 $data = array('$statuses' => $ret);
 450                 switch($type){
 451                         case "atom":
 452                         case "rss":
 453                                 $data = api_rss_extra($a, $data, $user_info);
 454                 }
 455
 456                 return  api_apply_template("timeline", $type, $data);
 457         }
 458         api_register_func('api/statuses/home_timeline','api_statuses_home_timeline', true);
 459         api_register_func('api/statuses/friends_timeline','api_statuses_home_timeline', true);
 460         api_register_func('api/statuses/user_timeline','api_statuses_home_timeline', true);
 461         # TODO: user_timeline should be profile view
 462