diff options
Diffstat (limited to 'mod')
-rwxr-xr-x | mod/events.php | 23 | ||||
-rw-r--r-- | mod/match.php | 12 | ||||
-rw-r--r-- | mod/post.php | 239 |
3 files changed, 260 insertions, 14 deletions
diff --git a/mod/events.php b/mod/events.php index f43a99cba..77756fb13 100755 --- a/mod/events.php +++ b/mod/events.php @@ -11,7 +11,7 @@ function events_post(&$a) { return; $event_id = ((x($_POST,'event_id')) ? intval($_POST['event_id']) : 0); - $cid = ((x($_POST,'cid')) ? intval($_POST['cid']) : 0); + $xchan = ((x($_POST,'xchan')) ? dbesc($_POST['xchan']) : ''); $uid = local_user(); $startyear = intval($_POST['startyear']); $startmonth = intval($_POST['startmonth']); @@ -28,6 +28,11 @@ function events_post(&$a) { $adjust = intval($_POST['adjust']); $nofinish = intval($_POST['nofinish']); + // only allow editing your own events. + + if(($xchan) && ($xchan !== get_observer_hash())) + return; + // The default setting for the `private` field in event_store() is false, so mirror that $private_event = false; @@ -389,11 +394,9 @@ function events_content(&$a) { else $sh_checked = (($orig_event['allow_cid'] === '<' . $channel['channel_hash'] . '>' && (! $orig_event['allow_gid']) && (! $orig_event['deny_cid']) && (! $orig_event['deny_gid'])) ? '' : ' checked="checked" ' ); - if($cid) + if($orig_event['event_xchan']) $sh_checked .= ' disabled="disabled" '; - - $tpl = get_markup_template('event_form.tpl'); $sdt = ((x($orig_event)) ? $orig_event['start'] : 'now'); @@ -426,6 +429,15 @@ function events_content(&$a) { require_once('include/acl_selectors.php'); + $perm_defaults = array( + 'allow_cid' => $channel['channel_allow_cid'], + 'allow_gid' => $channel['channel_allow_gid'], + 'deny_cid' => $channel['channel_deny_cid'], + 'deny_gid' => $channel['channel_deny_gid'] + ); + + + $o .= replace_macros($tpl,array( '$post' => $a->get_baseurl() . '/events', '$eid' => $eid, @@ -453,8 +465,7 @@ function events_content(&$a) { '$t_orig' => $t_orig, '$sh_text' => t('Share this event'), '$sh_checked' => $sh_checked, -// FIXME - '$acl' => (($cid) ? '' : populate_acl(((x($orig_event)) ? $orig_event : $a->user),false)), + '$acl' => (($orig_event['event_xchan']) ? '' : populate_acl(((x($orig_event)) ? $orig_event : $perm_defaults))), '$submit' => t('Submit') )); diff --git a/mod/match.php b/mod/match.php index 23eeb9370..5447f755d 100644 --- a/mod/match.php +++ b/mod/match.php @@ -1,5 +1,9 @@ <?php +// FIXME - this has never been properly ported from Friendica +// It takes keywords from your profile and queries the directory server for +// matching keywords from other profiles. + function match_content(&$a) { @@ -30,10 +34,10 @@ function match_content(&$a) { if($a->pager['page'] != 1) $params['p'] = $a->pager['page']; - if(strlen(get_config('system','directory_submit_url'))) - $x = post_url('http://dir.friendica.com/msearch', $params); - else - $x = post_url($a->get_baseurl() . '/msearch', $params); +// if(strlen(get_config('system','directory_submit_url'))) +// $x = post_url('http://dir.friendica.com/msearch', $params); +// else +// $x = post_url($a->get_baseurl() . '/msearch', $params); $j = json_decode($x); diff --git a/mod/post.php b/mod/post.php index 0ce58ec9f..2422afa8c 100644 --- a/mod/post.php +++ b/mod/post.php @@ -14,6 +14,72 @@ function post_init(&$a) { // Here we will pick out the magic auth params which arrive // as a get request, and the only communications to arrive this way. +/** + * Magic Auth + * ========== + * + * So-called "magic auth" takes place by a special exchange. On the remote computer, a redirection is made to the zot endpoint with special GET parameters. + * + * Endpoint: https://example.com/post/name (name is now optional - we are authenticating to a site, not a channel) + * + * where 'name' is the left hand side of the channel webbie, for instance 'mike' where the webbie is 'mike@zothub.com' + * + * Additionally four GET parameters are supplied: + * + ** auth => the webbie of the person requesting access + ** dest => the desired destination URL (urlencoded) + ** sec => a random string which is also stored locally for use during the verification phase. + ** version => the zot revision + * + * When this packet is received, a zot message is sent to the site hosting the request auth identity. + * (e.g. if $_GET['auth'] is foobar@podunk.edu, a zot packet is sent to the podunk.edu zot endpoint, which is typically /post) + * If no information has been recorded about the requesting identity a zot information packet will be retrieved before + * continuing. + * + * The sender of this packet is the name attached to the request endpoint. e.g. 'mike' in this example. If this channel + * cannot be located, we will choose any local channel as the sender. The recipients will be a single recipient corresponding + * to the guid and guid_sig we have associated with the auth identity + * + * + * { + * "type":"auth_check", + * "sender":{ + * "guid":"kgVFf_...", + * "guid_sig":"PT9-TApz...", + * "url":"http:\/\/podunk.edu", + * "url_sig":"T8Bp7j..." + * }, + * "recipients":{ + * { + * "guid":"ZHSqb...", + * "guid_sig":"JsAAXi..." + * } + * } + * "callback":"\/post", + * "version":1, + * "secret":"1eaa661", + * "secret_sig":"eKV968b1..." + * } + * + * + * auth_check messages MUST use encapsulated encryption. This message is sent to the origination site, which checks the 'secret' to see + * if it is the same as the 'sec' which it passed originally. It also checks the secret_sig which is the secret signed by the + * destination channel's private key and base64url encoded. If everything checks out, a json packet is returned: + * + * { + * "success":1, + * "confirm":"q0Ysovd1u..." + * } + * + * 'confirm' in this case is the base64url encoded RSA signature of the concatenation of 'secret' with the + * base64url encoded whirlpool hash of the source guid and guid_sig; signed with the source channel private key. + * This prevents a man-in-the-middle from inserting a rogue success packet. Upon receipt and successful + * verification of this packet, the destination site will redirect to the original destination URL and indicate a successful remote login. + * + * + * + */ + if(argc() > 1) { $webbie = argv(1); } @@ -45,11 +111,23 @@ function post_init(&$a) { $c = q("select * from channel where channel_address = '%s' limit 1", dbesc($webbie) ); + } + if(! $c) { + + // They are authenticating ultimately to the site and not to a particular channel. + // Any channel will do, providing it's currently active. We just need to have an + // identity to attach to the packet we send back. So find one. + + $c = q("select * from channel where not ( channel_pageflags & %d ) limit 1", + intval(PAGE_REMOVED) + ); + if(! $c) { + + // nobody here + logger('mod_zot: auth: unable to find channel ' . $webbie); - // They'll get a notice when they hit the page, we don't need two of them. - // In fact we only need the name to map the destination, auth can proceed - // without it. + goaway($desturl); } } @@ -153,7 +231,160 @@ function post_init(&$a) { } - +/** + * @function post_post(&$a) + * zot communications and messaging + * + * Sender HTTP posts to this endpoint ($site/post typically) with 'data' parameter set to json zot message packet. + * This packet is optionally encrypted, which we will discover if the json has an 'iv' element. + * $contents => array( 'alg' => 'aes256cbc', 'iv' => initialisation vector, 'key' => decryption key, 'data' => encrypted data); + * $contents->iv and $contents->key are random strings encrypted with this site's RSA public key and then base64url encoded. + * Currently only 'aes256cbc' is used, but this is extensible should that algorithm prove inadequate. + * + * Once decrypted, one will find the normal json_encoded zot message packet. + * + * Defined packet types are: notify, purge, refresh, auth_check, ping, and pickup + * + * Standard packet: (used by notify, purge, refresh, and auth_check) + * + * { + * "type": "notify", + * "sender":{ + * "guid":"kgVFf_1...", + * "guid_sig":"PT9-TApzp...", + * "url":"http:\/\/podunk.edu", + * "url_sig":"T8Bp7j5...", + * }, + * "recipients": { optional recipient array }, + * "callback":"\/post", + * "version":1, + * "secret":"1eaa...", + * "secret_sig": "df89025470fac8..." + * } + * + * Signature fields are all signed with the sender channel private key and base64url encoded. + * Recipients are arrays of guid and guid_sig, which were previously signed with the recipients private + * key and base64url encoded and later obtained via channel discovery. Absence of recipients indicates + * a public message or visible to all potential listeners on this site. + * + * "pickup" packet: + * The pickup packet is sent in response to a notify packet from another site + * + * { + * "type":"pickup", + * "url":"http:\/\/example.com", + * "callback":"http:\/\/example.com\/post", + * "callback_sig":"teE1_fLI...", + * "secret":"1eaa...", + * "secret_sig":"O7nB4_..." + * } + * + * In the pickup packet, the sig fields correspond to the respective data element signed with this site's system + * private key and then base64url encoded. + * The "secret" is the same as the original secret from the notify packet. + * + * If verification is successful, a json structure is returned + * containing a success indicator and an array of type 'pickup'. + * Each pickup element contains the original notify request and a message field whose contents are + * dependent on the message type + * + * This JSON array is AES encapsulated using the site public key of the site that sent the initial zot pickup packet. + * Using the above example, this would be example.com. + * + * + * { + * "success":1, + * "pickup":{ + * "notify":{ + * "type":"notify", + * "sender":{ + * "guid":"kgVFf_...", + * "guid_sig":"PT9-TApz...", + * "url":"http:\/\/z.podunk.edu", + * "url_sig":"T8Bp7j5D..." + * }, + * "callback":"\/post", + * "version":1, + * "secret":"1eaa661..." + * }, + * "message":{ + * "type":"activity", + * "message_id":"10b049ce384cbb2da9467319bc98169ab36290b8bbb403aa0c0accd9cb072e76@podunk.edu", + * "message_top":"10b049ce384cbb2da9467319bc98169ab36290b8bbb403aa0c0accd9cb072e76@podunk.edu", + * "message_parent":"10b049ce384cbb2da9467319bc98169ab36290b8bbb403aa0c0accd9cb072e76@podunk.edu", + * "created":"2012-11-20 04:04:16", + * "edited":"2012-11-20 04:04:16", + * "title":"", + * "body":"Hi Nickordo", + * "app":"", + * "verb":"post", + * "object_type":"", + * "target_type":"", + * "permalink":"", + * "location":"", + * "longlat":"", + * "owner":{ + * "name":"Indigo", + * "address":"indigo@podunk.edu", + * "url":"http:\/\/podunk.edu", + * "photo":{ + * "mimetype":"image\/jpeg", + * "src":"http:\/\/podunk.edu\/photo\/profile\/m\/5" + * }, + * "guid":"kgVFf_...", + * "guid_sig":"PT9-TAp...", + * }, + * "author":{ + * "name":"Indigo", + * "address":"indigo@podunk.edu", + * "url":"http:\/\/podunk.edu", + * "photo":{ + * "mimetype":"image\/jpeg", + * "src":"http:\/\/podunk.edu\/photo\/profile\/m\/5" + * }, + * "guid":"kgVFf_...", + * "guid_sig":"PT9-TAp..." + * } + * } + * } + *} + * + * Currently defined message types are 'activity', 'mail', 'profile' and 'channel_sync', which each have + * different content schemas. + * + * Ping packet: + * A ping packet does not require any parameters except the type. It may or may not be encrypted. + * + * { + * "type": "ping" + * } + * + * On receipt of a ping packet a ping response will be returned: + * + * { + * "success" : 1, + * "site" { + * "url":"http:\/\/podunk.edu", + * "url_sig":"T8Bp7j5...", + * "sitekey": "-----BEGIN PUBLIC KEY----- + * MIICIjANBgkqhkiG9w0BAQE..." + * } + * } + * + * The ping packet can be used to verify that a site has not been re-installed, and to + * initiate corrective action if it has. The url_sig is signed with the site private key + * and base64url encoded - and this should verify with the enclosed sitekey. Failure to + * verify indicates the site is corrupt or otherwise unable to communicate using zot. + * This return packet is not otherwise verified, so should be compared with other + * results obtained from this site which were verified prior to taking action. For instance + * if you have one verified result with this signature and key, and other records for this + * url which have different signatures and keys, it indicates that the site was re-installed + * and corrective action may commence (remove or mark invalid any entries with different + * signatures). + * If you have no records which match this url_sig and key - no corrective action should + * be taken as this packet may have been returned by an imposter. + * + */ function post_post(&$a) { |