add standard directories

Added some of the standard directories

darcs-hash:20080506151729-84dde-563da8505e06a7302041c93ab157ced31165876c.gz

1 files changed, 579 insertions, 0 deletions

diff --git a/_darcs/pristine/actions/userauthorization.php b/_darcs/pristine/actions/userauthorization.php
new file mode 100644
index 000000000..ac0a0728c
--- /dev/null
+++ b/_darcs/pristine/actions/userauthorization.php
@@ -0,0 +1,579 @@
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, Inc.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+if (!defined('LACONICA')) { exit(1); }
+
+require_once(INSTALLDIR.'/lib/omb.php');
+define('TIMESTAMP_THRESHOLD', 300);
+
+class UserauthorizationAction extends Action {
+
+	function handle($args) {
+		parent::handle($args);
+
+		if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+			# CSRF protection
+			$token = $this->trimmed('token');
+			if (!$token || $token != common_session_token()) {
+				$req = $this->get_stored_request();
+				$this->show_form(_('There was a problem with your session token. Try again, please.'), $req);
+				return;
+			}
+			# We've shown the form, now post user's choice
+			$this->send_authorization();
+		} else {
+			if (!common_logged_in()) {
+				# Go log in, and then come back
+				common_debug('saving URL for returnto', __FILE__);
+				common_set_returnto($_SERVER['REQUEST_URI']);
+
+				common_debug('redirecting to login', __FILE__);
+				common_redirect(common_local_url('login'));
+				return;
+			}
+			try {
+				# this must be a new request
+				common_debug('getting new request', __FILE__);
+				$req = $this->get_new_request();
+				if (!$req) {
+					$this->client_error(_('No request found!'));
+				}
+				common_debug('validating request', __FILE__);
+				# XXX: only validate new requests, since nonce is one-time use
+				$this->validate_request($req);
+				common_debug('showing form', __FILE__);
+				$this->store_request($req);
+				$this->show_form($req);
+			} catch (OAuthException $e) {
+				$this->clear_request();
+				$this->client_error($e->getMessage());
+				return;
+			}
+
+		}
+	}
+
+	function show_form($req) {
+
+		$nickname = $req->get_parameter('omb_listenee_nickname');
+		$profile = $req->get_parameter('omb_listenee_profile');
+		$license = $req->get_parameter('omb_listenee_license');
+		$fullname = $req->get_parameter('omb_listenee_fullname');
+		$homepage = $req->get_parameter('omb_listenee_homepage');
+		$bio = $req->get_parameter('omb_listenee_bio');
+		$location = $req->get_parameter('omb_listenee_location');
+		$avatar = $req->get_parameter('omb_listenee_avatar');
+
+		common_show_header(_('Authorize subscription'));
+		common_element('p', NULL, _('Please check these details to make sure '.
+									 'that you want to subscribe to this user\'s notices. '.
+									 'If you didn\'t just ask to subscribe to someone\'s notices, '.
+									 'click "Cancel".'));
+		common_element_start('div', 'profile');
+		if ($avatar) {
+			common_element('img', array('src' => $avatar,
+										'class' => 'avatar profile',
+										'width' => AVATAR_PROFILE_SIZE,
+										'height' => AVATAR_PROFILE_SIZE,
+										'alt' => $nickname));
+		}
+		common_element('a', array('href' => $profile,
+								  'class' => 'external profile nickname'),
+					   $nickname);
+		if ($fullname) {
+			common_element_start('div', 'fullname');
+			if ($homepage) {
+				common_element('a', array('href' => $homepage),
+							   $fullname);
+			} else {
+				common_text($fullname);
+			}
+			common_element_end('div');
+		}
+		if ($location) {
+			common_element('div', 'location', $location);
+		}
+		if ($bio) {
+			common_element('div', 'bio', $bio);
+		}
+		common_element_start('div', 'license');
+		common_element('a', array('href' => $license,
+								  'class' => 'license'),
+					   $license);
+		common_element_end('div');
+		common_element_end('div');
+		common_element_start('form', array('method' => 'post',
+										   'id' => 'userauthorization',
+										   'name' => 'userauthorization',
+										   'action' => common_local_url('userauthorization')));
+		common_hidden('token', common_session_token());
+		common_submit('accept', _('Accept'));
+		common_submit('reject', _('Reject'));
+		common_element_end('form');
+		common_show_footer();
+	}
+
+	function send_authorization() {
+		$req = $this->get_stored_request();
+
+		if (!$req) {
+			common_user_error(_('No authorization request!'));
+			return;
+		}
+
+		$callback = $req->get_parameter('oauth_callback');
+
+		if ($this->arg('accept')) {
+			if (!$this->authorize_token($req)) {
+				$this->client_error(_('Error authorizing token'));
+			}
+			if (!$this->save_remote_profile($req)) {
+				$this->client_error(_('Error saving remote profile'));
+			}
+			if (!$callback) {
+				$this->show_accept_message($req->get_parameter('oauth_token'));
+			} else {
+				$params = array();
+				$params['oauth_token'] = $req->get_parameter('oauth_token');
+				$params['omb_version'] = OMB_VERSION_01;
+				$user = User::staticGet('uri', $req->get_parameter('omb_listener'));
+				$profile = $user->getProfile();
+				if (!$profile) {
+					common_log_db_error($user, 'SELECT', __FILE__);
+					$this->server_error(_('User without matching profile'));
+					return;
+				}
+				$params['omb_listener_nickname'] = $user->nickname;
+				$params['omb_listener_profile'] = common_local_url('showstream',
+																   array('nickname' => $user->nickname));
+				if ($profile->fullname) {
+					$params['omb_listener_fullname'] = $profile->fullname;
+				}
+				if ($profile->homepage) {
+					$params['omb_listener_homepage'] = $profile->homepage;
+				}
+				if ($profile->bio) {
+					$params['omb_listener_bio'] = $profile->bio;
+				}
+				if ($profile->location) {
+					$params['omb_listener_location'] = $profile->location;
+				}
+				$avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
+				if ($avatar) {
+					$params['omb_listener_avatar'] = $avatar->url;
+				}
+				$parts = array();
+				foreach ($params as $k => $v) {
+					$parts[] = $k . '=' . OAuthUtil::urlencodeRFC3986($v);
+				}
+				$query_string = implode('&', $parts);
+				$parsed = parse_url($callback);
+				$url = $callback . (($parsed['query']) ? '&' : '?') . $query_string;
+				common_redirect($url, 303);
+			}
+		} else {
+			if (!$callback) {
+				$this->show_reject_message();
+			} else {
+				# XXX: not 100% sure how to signal failure... just redirect without token?
+				common_redirect($callback, 303);
+			}
+		}
+	}
+
+	function authorize_token(&$req) {
+		$consumer_key = $req->get_parameter('oauth_consumer_key');
+		$token_field = $req->get_parameter('oauth_token');
+		common_debug('consumer key = "'.$consumer_key.'"', __FILE__);
+		common_debug('token field = "'.$token_field.'"', __FILE__);
+		$rt = new Token();
+		$rt->consumer_key = $consumer_key;
+		$rt->tok = $token_field;
+		$rt->type = 0;
+		$rt->state = 0;
+		common_debug('request token to look up: "'.print_r($rt,TRUE).'"');
+		if ($rt->find(true)) {
+			common_debug('found request token to authorize', __FILE__);
+			$orig_rt = clone($rt);
+			$rt->state = 1; # Authorized but not used
+			if ($rt->update($orig_rt)) {
+				common_debug('updated request token so it is authorized', __FILE__);
+				return true;
+			}
+		}
+		return FALSE;
+	}
+
+	# XXX: refactor with similar code in finishremotesubscribe.php
+
+	function save_remote_profile(&$req) {
+		# FIXME: we should really do this when the consumer comes
+		# back for an access token. If they never do, we've got stuff in a
+		# weird state.
+
+		$nickname = $req->get_parameter('omb_listenee_nickname');
+		$fullname = $req->get_parameter('omb_listenee_fullname');
+		$profile_url = $req->get_parameter('omb_listenee_profile');
+		$homepage = $req->get_parameter('omb_listenee_homepage');
+		$bio = $req->get_parameter('omb_listenee_bio');
+		$location = $req->get_parameter('omb_listenee_location');
+		$avatar_url = $req->get_parameter('omb_listenee_avatar');
+
+		$listenee = $req->get_parameter('omb_listenee');
+		$remote = Remote_profile::staticGet('uri', $listenee);
+
+		if ($remote) {
+			$exists = true;
+			$profile = Profile::staticGet($remote->id);
+			$orig_remote = clone($remote);
+			$orig_profile = clone($profile);
+		} else {
+			$exists = false;
+			$remote = new Remote_profile();
+			$remote->uri = $listenee;
+			$profile = new Profile();
+		}
+
+		$profile->nickname = $nickname;
+		$profile->profileurl = $profile_url;
+
+		if ($fullname) {
+			$profile->fullname = $fullname;
+		}
+		if ($homepage) {
+			$profile->homepage = $homepage;
+		}
+		if ($bio) {
+			$profile->bio = $bio;
+		}
+		if ($location) {
+			$profile->location = $location;
+		}
+
+		if ($exists) {
+			$profile->update($orig_profile);
+		} else {
+			$profile->created = DB_DataObject_Cast::dateTime(); # current time
+			$id = $profile->insert();
+			if (!$id) {
+				return FALSE;
+			}
+			$remote->id = $id;
+		}
+
+		if ($exists) {
+			if (!$remote->update($orig_remote)) {
+				return FALSE;
+			}
+		} else {
+			$remote->created = DB_DataObject_Cast::dateTime(); # current time
+			if (!$remote->insert()) {
+				return FALSE;
+			}
+		}
+
+		if ($avatar_url) {
+			if (!$this->add_avatar($profile, $avatar_url)) {
+				return FALSE;
+			}
+		}
+
+		$user = common_current_user();
+		$datastore = omb_oauth_datastore();
+		$consumer = $this->get_consumer($datastore, $req);
+		$token = $this->get_token($datastore, $req, $consumer);
+
+		$sub = new Subscription();
+		$sub->subscriber = $user->id;
+		$sub->subscribed = $remote->id;
+		$sub->token = $token->key; # NOTE: request token, not valid for use!
+		$sub->created = DB_DataObject_Cast::dateTime(); # current time
+
+		if (!$sub->insert()) {
+			return FALSE;
+		}
+
+		return TRUE;
+	}
+
+	function add_avatar($profile, $url) {
+		$temp_filename = tempnam(sys_get_temp_dir(), 'listenee_avatar');
+		copy($url, $temp_filename);
+		return $profile->setOriginal($temp_filename);
+	}
+
+	function show_accept_message($tok) {
+		common_show_header(_('Subscription authorized'));
+		common_element('p', NULL,
+					   _('The subscription has been authorized, but no '.
+						  'callback URL was passed. Check with the site\'s instructions for '.
+						  'details on how to authorize the subscription. Your subscription token is:'));
+		common_element('blockquote', 'token', $tok);
+		common_show_footer();
+	}
+
+	function show_reject_message($tok) {
+		common_show_header(_('Subscription rejected'));
+		common_element('p', NULL,
+					   _('The subscription has been rejected, but no '.
+						  'callback URL was passed. Check with the site\'s instructions for '.
+						  'details on how to fully reject the subscription.'));
+		common_show_footer();
+	}
+
+	function store_request($req) {
+		common_ensure_session();
+		$_SESSION['userauthorizationrequest'] = $req;
+	}
+
+	function clear_request() {
+		common_ensure_session();
+		unset($_SESSION['userauthorizationrequest']);
+	}
+
+	function get_stored_request() {
+		common_ensure_session();
+		$req = $_SESSION['userauthorizationrequest'];
+		return $req;
+	}
+
+	function get_new_request() {
+		common_remove_magic_from_request();
+		$req = OAuthRequest::from_request();
+		return $req;
+	}
+
+	# Throws an OAuthException if anything goes wrong
+
+	function validate_request(&$req) {
+		# OAuth stuff -- have to copy from OAuth.php since they're
+		# all private methods, and there's no user-authentication method
+		common_debug('checking version', __FILE__);
+		$this->check_version($req);
+		common_debug('getting datastore', __FILE__);
+		$datastore = omb_oauth_datastore();
+		common_debug('getting consumer', __FILE__);
+		$consumer = $this->get_consumer($datastore, $req);
+		common_debug('getting token', __FILE__);
+		$token = $this->get_token($datastore, $req, $consumer);
+		common_debug('checking timestamp', __FILE__);
+		$this->check_timestamp($req);
+		common_debug('checking nonce', __FILE__);
+		$this->check_nonce($datastore, $req, $consumer, $token);
+		common_debug('checking signature', __FILE__);
+		$this->check_signature($req, $consumer, $token);
+		common_debug('validating omb stuff', __FILE__);
+		$this->validate_omb($req);
+		common_debug('done validating', __FILE__);
+		return true;
+	}
+
+	function validate_omb(&$req) {
+		foreach (array('omb_version', 'omb_listener', 'omb_listenee',
+					   'omb_listenee_profile', 'omb_listenee_nickname',
+					   'omb_listenee_license') as $param)
+		{
+			if (!$req->get_parameter($param)) {
+				throw new OAuthException("Required parameter '$param' not found");
+			}
+		}
+		# Now, OMB stuff
+		$version = $req->get_parameter('omb_version');
+		if ($version != OMB_VERSION_01) {
+			throw new OAuthException("OpenMicroBlogging version '$version' not supported");
+		}
+		$listener =	$req->get_parameter('omb_listener');
+		$user = User::staticGet('uri', $listener);
+		if (!$user) {
+			throw new OAuthException("Listener URI '$listener' not found here");
+		}
+		$cur = common_current_user();
+		if ($cur->id != $user->id) {
+			throw new OAuthException("Can't add for another user!");
+		}
+		$listenee = $req->get_parameter('omb_listenee');
+		if (!Validate::uri($listenee) &&
+			!common_valid_tag($listenee)) {
+			throw new OAuthException("Listenee URI '$listenee' not a recognizable URI");
+		}
+		if (strlen($listenee) > 255) {
+			throw new OAuthException("Listenee URI '$listenee' too long");
+		}
+
+		$other = User::staticGet('uri', $listenee);
+		if ($other) {
+			throw new OAuthException("Listenee URI '$listenee' is local user");
+		}
+
+		$remote = Remote_profile::staticGet('uri', $listenee);
+		if ($remote) {
+			$sub = new Subscription();
+			$sub->subscriber = $user->id;
+			$sub->subscribed = $remote->id;
+			if ($sub->find(TRUE)) {
+				throw new OAuthException("Already subscribed to user!");
+			}
+		}
+		$nickname = $req->get_parameter('omb_listenee_nickname');
+		if (!Validate::string($nickname, array('min_length' => 1,
+											   'max_length' => 64,
+											   'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
+			throw new OAuthException('Nickname must have only letters and numbers and no spaces.');
+		}
+		$profile = $req->get_parameter('omb_listenee_profile');
+		if (!common_valid_http_url($profile)) {
+			throw new OAuthException("Invalid profile URL '$profile'.");
+		}
+
+		if ($profile == common_local_url('showstream', array('nickname' => $nickname))) {
+			throw new OAuthException("Profile URL '$profile' is for a local user.");
+		}
+
+		$license = $req->get_parameter('omb_listenee_license');
+		if (!common_valid_http_url($license)) {
+			throw new OAuthException("Invalid license URL '$license'.");
+		}
+		$site_license = common_config('license', 'url');
+		if (!common_compatible_license($license, $site_license)) {
+			throw new OAuthException("Listenee stream license '$license' not compatible with site license '$site_license'.");
+		}
+		# optional stuff
+		$fullname = $req->get_parameter('omb_listenee_fullname');
+		if ($fullname && strlen($fullname) > 255) {
+			throw new OAuthException("Full name '$fullname' too long.");
+		}
+		$homepage = $req->get_parameter('omb_listenee_homepage');
+		if ($homepage && (!common_valid_http_url($homepage) || strlen($homepage) > 255)) {
+			throw new OAuthException("Invalid homepage '$homepage'");
+		}
+		$bio = $req->get_parameter('omb_listenee_bio');
+		if ($bio && strlen($bio) > 140) {
+			throw new OAuthException("Bio too long '$bio'");
+		}
+		$location = $req->get_parameter('omb_listenee_location');
+		if ($location && strlen($location) > 255) {
+			throw new OAuthException("Location too long '$location'");
+		}
+		$avatar = $req->get_parameter('omb_listenee_avatar');
+		if ($avatar) {
+			if (!common_valid_http_url($avatar) || strlen($avatar) > 255) {
+				throw new OAuthException("Invalid avatar URL '$avatar'");
+			}
+			$size = @getimagesize($avatar);
+			if (!$size) {
+				throw new OAuthException("Can't read avatar URL '$avatar'");
+			}
+			if ($size[0] != AVATAR_PROFILE_SIZE || $size[1] != AVATAR_PROFILE_SIZE) {
+				throw new OAuthException("Wrong size image at '$avatar'");
+			}
+			if (!in_array($size[2], array(IMAGETYPE_GIF, IMAGETYPE_JPEG,
+										  IMAGETYPE_PNG))) {
+				throw new OAuthException("Wrong image type for '$avatar'");
+			}
+		}
+		$callback = $req->get_parameter('oauth_callback');
+		if ($callback && !common_valid_http_url($callback)) {
+			throw new OAuthException("Invalid callback URL '$callback'");
+		}
+		if ($callback && $callback == common_local_url('finishremotesubscribe')) {
+			throw new OAuthException("Callback URL '$callback' is for local site.");
+		}
+	}
+
+	# Snagged from OAuthServer
+
+	function check_version(&$req) {
+		$version = $req->get_parameter("oauth_version");
+		if (!$version) {
+			$version = 1.0;
+		}
+		if ($version != 1.0) {
+			throw new OAuthException("OAuth version '$version' not supported");
+		}
+		return $version;
+	}
+
+	# Snagged from OAuthServer
+
+	function get_consumer($datastore, $req) {
+		$consumer_key = @$req->get_parameter("oauth_consumer_key");
+		if (!$consumer_key) {
+			throw new OAuthException("Invalid consumer key");
+		}
+
+		$consumer = $datastore->lookup_consumer($consumer_key);
+		if (!$consumer) {
+			throw new OAuthException("Invalid consumer");
+		}
+		return $consumer;
+	}
+
+	# Mostly cadged from OAuthServer
+
+	function get_token($datastore, &$req, $consumer) {/*{{{*/
+		$token_field = @$req->get_parameter('oauth_token');
+		$token = $datastore->lookup_token($consumer, 'request', $token_field);
+		if (!$token) {
+			throw new OAuthException("Invalid $token_type token: $token_field");
+		}
+		return $token;
+	}
+
+	function check_timestamp(&$req) {
+		$timestamp = @$req->get_parameter('oauth_timestamp');
+		$now = time();
+		if ($now - $timestamp > TIMESTAMP_THRESHOLD) {
+			throw new OAuthException("Expired timestamp, yours $timestamp, ours $now");
+		}
+	}
+
+	# NOTE: don't call twice on the same request; will fail!
+	function check_nonce(&$datastore, &$req, $consumer, $token) {
+		$timestamp = @$req->get_parameter('oauth_timestamp');
+		$nonce = @$req->get_parameter('oauth_nonce');
+		$found = $datastore->lookup_nonce($consumer, $token, $nonce, $timestamp);
+		if ($found) {
+			throw new OAuthException("Nonce already used");
+		}
+		return true;
+	}
+
+	function check_signature(&$req, $consumer, $token) {
+		$signature_method = $this->get_signature_method($req);
+		$signature = $req->get_parameter('oauth_signature');
+		$valid_sig = $signature_method->check_signature($req,
+														$consumer,
+														$token,
+														$signature);
+		if (!$valid_sig) {
+			throw new OAuthException("Invalid signature");
+		}
+	}
+
+	function get_signature_method(&$req) {
+		$signature_method = @$req->get_parameter("oauth_signature_method");
+		if (!$signature_method) {
+			$signature_method = "PLAINTEXT";
+		}
+		if ($signature_method != 'HMAC-SHA1') {
+			throw new OAuthException("Signature method '$signature_method' not supported.");
+		}
+		return omb_hmac_sha1();
+	}
+}