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Twitter-compatible API - Error handling that better matches Twitter's 

darcs-hash:20080720070905-ca946-dda57dd92210461361fd58b7a3244bf24c01e801.gz
This commit is contained in:
zach 2008-07-20 03:09:05 -04:00
parent 00a6f3d015
commit 140689800b
4 changed files with 73 additions and 22 deletions
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15
actions/api.php
View File

@ -45,9 +45,7 @@ class ApiAction extends Action {
$this->api_method = $cmdext[0];
$this->content_type = strtolower($cmdext[1]);
}
# common_debug("apiaction = $this->api_action, method = $this->api_method, argument = $this->api_arg, ctype = $this->content_type");
# XXX Maybe check to see if the command actually exists first?
if($this->requires_auth()) {
if (!isset($_SERVER['PHP_AUTH_USER'])) {
@ -56,7 +54,7 @@ class ApiAction extends Action {
header('WWW-Authenticate: Basic realm="Laconica API"');
# if the user hits cancel -- bam!
common_show_basic_auth_error();
$this->show_basic_auth_error();
} else {
$nickname = $_SERVER['PHP_AUTH_USER'];
$password = $_SERVER['PHP_AUTH_PW'];
@ -67,7 +65,7 @@ class ApiAction extends Action {
$this->process_command();
} else {
# basic authentication failed
common_show_basic_auth_error();
$this->show_basic_auth_error();
}
}
} else {
@ -123,5 +121,12 @@ class ApiAction extends Action {
return true;
}
}
function show_basic_auth_error() {
header('HTTP/1.1 401 Unauthorized');
header('Content-type: text/plain');
print("Could not authenticate you."); # exactly what Twitter says - no \n
exit();
}
}

23
actions/twitapifriendships.php
View File

@ -31,7 +31,7 @@ class TwitapifriendshipsAction extends TwitterapiAction {
$other = $this->get_user($id);
if (!$other) {
$this->client_error(_('No such user'));
$this->client_error(_('Could not follow user: User not found.'), 403, $apidata['content-type']);
exit();
return;
}
@ -39,7 +39,7 @@ class TwitapifriendshipsAction extends TwitterapiAction {
$user = $apidata['user'];
if ($user->isSubscribed($other)) {
$this->client_error(_('Already subscribed.'));
$this->client_error("Could not follow user: $other->nickname is already on your list.", 403, $apidata['content-type']);
exit();
return;
}
@ -55,7 +55,7 @@ class TwitapifriendshipsAction extends TwitterapiAction {
$result = $sub->insert();
if (!$result) {
$this->server_error(_('Could not subscribe'));
$this->client_error("Could not follow user: $other->nickname.", 400, $apidata['content-type']);
exit();
return;
}
@ -101,7 +101,7 @@ class TwitapifriendshipsAction extends TwitterapiAction {
$sub->delete();
$sub->query('COMMIT');
} else {
$this->client_error(_('Not subscribed'));
$this->client_error(_('You are not friends with the specified user.'), 403, $apidata['content-type']);
exit();
}
@ -127,14 +127,21 @@ class TwitapifriendshipsAction extends TwitterapiAction {
function exists($args, $apidata) {
parent::handle($args);
$user_a_id = $this->trimmed('user_a');
$user_b_id = $this->trimmed('user_b');
$user_a = $this->get_profile($user_a_id);
$user_b = $this->get_profile($user_b_id);
if($user_a) { print "got user a profile";}
if($user_b) { print "got user b profile";}
if (!$user_a || !$user_b) {
$this->client_error(_('No such user'));
return;
$this->client_error(_('Two user ids or screen_names must be supplied.'), 400, $apidata['content-type']);
exit();
}
if ($user_a->isSubscribed($user_b)) {
@ -151,20 +158,20 @@ class TwitapifriendshipsAction extends TwitterapiAction {
break;
case 'json':
print json_encode($result);
print "\n";
break;
default:
print $result;
break;
}
exit();
}
function get_profile($id) {
if (is_numeric($id)) {
return Profile::staticGet($id);
} else {
$user = User::staticGet('nickname', $id);
$user = User::staticGet('nickname', $id);
if ($user) {
return $user->getProfile();
} else {

49
lib/twitterapi.php
View File

@ -280,7 +280,54 @@ class TwitterapiAction extends Action {
break;
}
}
function client_error($msg, $code = 400, $content_type = 'json') {
static $status = array(400 => 'Bad Request',
401 => 'Unauthorized',
402 => 'Payment Required',
403 => 'Forbidden',
404 => 'Not Found',
405 => 'Method Not Allowed',
406 => 'Not Acceptable',
407 => 'Proxy Authentication Required',
408 => 'Request Timeout',
409 => 'Conflict',
410 => 'Gone',
411 => 'Length Required',
412 => 'Precondition Failed',
413 => 'Request Entity Too Large',
414 => 'Request-URI Too Long',
415 => 'Unsupported Media Type',
416 => 'Requested Range Not Satisfiable',
417 => 'Expectation Failed');
$action = $this->trimmed('action');
common_debug("User error '$code' on '$action': $msg", __FILE__);
if (!array_key_exists($code, $status)) {
$code = 400;
}
$status_string = $status[$code];
header('HTTP/1.1 '.$code.' '.$status_string);
if ($content_type == 'xml') {
common_start_xml();
common_element_start('hash');
common_element('error', NULL, $msg);
common_element('request', NULL, $_SERVER['REQUEST_URI']);
common_element_end('hash');
common_end_xml();
} else {
$error_array = array('error' => $msg, 'request' => $_SERVER['REQUEST_URI']);
print(json_encode($error_array));
}
exit();
}
function init_twitter_rss() {
common_start_xml();
common_element_start('rss', array('version' => '2.0'));

8
lib/util.php
View File

@ -223,14 +223,6 @@ function common_show_header($pagetitle, $callable=NULL, $data=NULL, $headercall=
common_element_start('div', array('id' => 'content'));
}
# XXX: Refactor w/common_user_error() ?
function common_show_basic_auth_error() {
header('HTTP/1.1 401 Unauthorized');
header('Content-type: text/plain');
print("Could not authenticate you."); # exactly what Twitter says - no \n
exit();
}
function common_show_footer() {
global $xw, $config;
common_element_end('div'); # content div