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authorzotlabs <mike@macgirvin.com>2019-02-18 18:16:50 -0800
committerzotlabs <mike@macgirvin.com>2019-02-18 18:16:50 -0800
commit175f78fa844ca196a02a441c9270c5b1e34c6c27 (patch)
tree621e3bf477d1d358b8a21a5e5a6f692f593b4f48 /Zotlabs/Module
parentb5109d2a1ae6056ec845c66ad89ccb02b4de0a05 (diff)
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support zot location independent urls
Diffstat (limited to 'Zotlabs/Module')
-rw-r--r--Zotlabs/Module/Id.php186
1 files changed, 186 insertions, 0 deletions
diff --git a/Zotlabs/Module/Id.php b/Zotlabs/Module/Id.php
new file mode 100644
index 000000000..9addd673f
--- /dev/null
+++ b/Zotlabs/Module/Id.php
@@ -0,0 +1,186 @@
+<?php
+
+namespace Zotlabs\Module;
+
+/**
+ *
+ * Controller for responding to x-zot: protocol requests
+ * x-zot:_jkfRG85nJ-714zn-LW_VbTFW8jSjGAhAydOcJzHxqHkvEHWG2E0RbA_pbch-h4R63RG1YJZifaNzgccoLa3MQ/453c1678-1a79-4af7-ab65-6b012f6cab77
+ *
+ */
+
+use Zotlabs\Lib\Activity;
+use Zotlabs\Lib\ActivityStreams;
+use Zotlabs\Lib\LDSignatures;
+use Zotlabs\Zot6\HTTPSig;
+use Zotlabs\Web\Controller;
+use Zotlabs\Lib\Libzot;
+use Zotlabs\Lib\ThreadListener;
+use Zotlabs\Lib\IConfig;
+use Zotlabs\Lib\Enotify;
+use App;
+
+require_once('include/attach.php');
+require_once('include/bbcode.php');
+require_once('include/security.php');
+
+
+class Id extends Controller {
+
+ function init() {
+
+ if(Libzot::is_zot_request()) {
+
+ $conversation = false;
+
+ $request_portable_id = argv(1);
+ if(argc() > 2) {
+ $item_id = argv(2);
+ }
+
+ $portable_id = EMPTY_STR;
+
+ $sigdata = HTTPSig::verify(EMPTY_STR);
+ if($sigdata['portable_id'] && $sigdata['header_valid']) {
+ $portable_id = $sigdata['portable_id'];
+ }
+
+ $r = q("select channel_id, channel_address from channel where channel_hash = '%s' limit 1",
+ dbesc($request_portable_id)
+ );
+ if($r) {
+ $channel_id = $r[0]['channel_id'];
+ if(! $item_id) {
+ $handler = new Channel();
+ App::$argc = 2;
+ App::$argv[0] = 'channel';
+ App::$argv[1] = $r[0]['channel_address'];
+ $handler->init();
+ }
+ }
+ else {
+ http_status_exit(404, 'Not found');
+ }
+
+
+ $item_normal = " and item.item_hidden = 0 and item.item_type = 0 and item.item_unpublished = 0 and item.item_delayed = 0 and item.item_blocked = 0 ";
+
+ $sql_extra = item_permissions_sql(0);
+
+ $r = q("select * from item where mid like '%s' $item_normal $sql_extra and uid = %d limit 1",
+ dbesc('%/' . $item_id),
+ intval($channel_id)
+ );
+ if(! $r) {
+
+ $r = q("select * from item where mid like '%s' $item_normal and uid = %d limit 1",
+ dbesc('%/' . $item_id),
+ intval($channel_id)
+ );
+ if($r) {
+ http_status_exit(403, 'Forbidden');
+ }
+ http_status_exit(404, 'Not found');
+ }
+
+
+ $items = q("select parent as item_id from item where mid = '%s' and uid = %d $item_normal $sql_extra ",
+ dbesc($r[0]['parent_mid']),
+ intval($r[0]['uid'])
+ );
+ if(! $items) {
+ http_status_exit(404, 'Not found');
+ }
+
+ $r = $items;
+
+ $parents_str = ids_to_querystr($r,'item_id');
+
+ $items = q("SELECT item.*, item.id AS item_id FROM item WHERE item.parent IN ( %s ) $item_normal $sql_extra ",
+ dbesc($parents_str)
+ );
+
+ if(! $items) {
+ http_status_exit(404, 'Not found');
+ }
+
+ $r = $items;
+ xchan_query($r,true);
+ $items = fetch_post_tags($r,true);
+
+ $observer = App::get_observer();
+ $parent = $items[0];
+ $recips = (($parent['owner']['xchan_network'] === 'activitypub') ? get_iconfig($parent['id'],'activitypub','recips', []) : []);
+ $to = (($recips && array_key_exists('to',$recips) && is_array($recips['to'])) ? $recips['to'] : null);
+ $nitems = [];
+ foreach($items as $i) {
+
+ $mids = [];
+
+ if(intval($i['item_private'])) {
+ if(! $observer) {
+ continue;
+ }
+ // ignore private reshare, possibly from hubzilla
+ if($i['verb'] === 'Announce') {
+ if(! in_array($i['thr_parent'],$mids)) {
+ $mids[] = $i['thr_parent'];
+ }
+ continue;
+ }
+ // also ignore any children of the private reshares
+ if(in_array($i['thr_parent'],$mids)) {
+ continue;
+ }
+
+ if((! $to) || (! in_array($observer['xchan_url'],$to))) {
+ continue;
+ }
+
+ }
+ $nitems[] = $i;
+ }
+
+ if(! $nitems)
+ http_status_exit(404, 'Not found');
+
+ $chan = channelx_by_n($nitems[0]['uid']);
+
+ if(! $chan)
+ http_status_exit(404, 'Not found');
+
+ if(! perm_is_allowed($chan['channel_id'],get_observer_hash(),'view_stream'))
+ http_status_exit(403, 'Forbidden');
+
+ $i = Activity::encode_item_collection($nitems,'conversation/' . $item_id,'OrderedCollection',( defined('NOMADIC') ? false : true));
+ if($portable_id) {
+ ThreadListener::store(z_root() . '/item/' . $item_id,$portable_id);
+ }
+
+ if(! $i)
+ http_status_exit(404, 'Not found');
+
+ $x = array_merge(['@context' => [
+ ACTIVITYSTREAMS_JSONLD_REV,
+ 'https://w3id.org/security/v1',
+ z_root() . ZOT_APSCHEMA_REV
+ ]], $i);
+
+ $headers = [];
+ $headers['Content-Type'] = 'application/x-zot+json' ;
+ $x['signature'] = LDSignatures::sign($x,$chan);
+ $ret = json_encode($x, JSON_UNESCAPED_SLASHES);
+ $headers['Digest'] = HTTPSig::generate_digest_header($ret);
+ $headers['(request-target)'] = strtolower($_SERVER['REQUEST_METHOD']) . ' ' . $_SERVER['REQUEST_URI'];
+ $h = HTTPSig::create_sig($headers,$chan['channel_prvkey'],channel_url($chan));
+ HTTPSig::set_headers($h);
+ echo $ret;
+ killme();
+
+ }
+
+ }
+
+}
+
+