3 * StatusNet - the distributed open-source microblogging tool
4 * Copyright (C) 2010, StatusNet, Inc.
6 * Some utilities for generating hint data
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU Affero General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU Affero General Public License for more details.
18 * You should have received a copy of the GNU Affero General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 class DiscoveryHints {
24 static function fromXRD($xrd)
28 foreach ($xrd->links as $link) {
29 switch ($link['rel']) {
30 case Discovery::PROFILEPAGE:
31 $hints['profileurl'] = $link['href'];
33 case Salmon::NS_REPLIES:
34 $hints['salmon'] = $link['href'];
36 case Discovery::UPDATESFROM:
37 $hints['feedurl'] = $link['href'];
39 case Discovery::HCARD:
40 $hints['hcardurl'] = $link['href'];
50 static function fromHcardUrl($url)
52 $client = new HTTPClient();
53 $client->setHeader('Accept', 'text/html,application/xhtml+xml');
54 $response = $client->get($url);
56 if (!$response->isOk()) {
60 return self::hcardHints($response->getBody(),
64 static function hcardHints($body, $url)
66 $hcard = self::_hcard($body, $url);
70 // XXX: don't copy stuff into an array and then copy it again
72 if (array_key_exists('nickname', $hcard)) {
73 $hints['nickname'] = $hcard['nickname'];
76 if (array_key_exists('fn', $hcard)) {
77 $hints['fullname'] = $hcard['fn'];
78 } else if (array_key_exists('n', $hcard)) {
79 $hints['fullname'] = implode(' ', $hcard['n']);
82 if (array_key_exists('photo', $hcard)) {
83 $hints['avatar'] = $hcard['photo'][0];
86 if (array_key_exists('note', $hcard)) {
87 $hints['bio'] = $hcard['note'];
90 if (array_key_exists('adr', $hcard)) {
91 if (is_string($hcard['adr'])) {
92 $hints['location'] = $hcard['adr'];
93 } else if (is_array($hcard['adr'])) {
94 $hints['location'] = implode(' ', $hcard['adr']);
98 if (array_key_exists('url', $hcard)) {
99 if (is_string($hcard['url'])) {
100 $hints['homepage'] = $hcard['url'];
101 } else if (is_array($hcard['url'])) {
102 // HACK get the last one; that's how our hcards look
103 $hints['homepage'] = $hcard['url'][count($hcard['url'])-1];
110 static function _hcard($body, $url)
112 // DOMDocument::loadHTML may throw warnings on unrecognized elements.
114 $old = error_reporting(error_reporting() & ~E_WARNING);
116 $doc = new DOMDocument();
117 $doc->loadHTML($body);
119 error_reporting($old);
121 $xp = new DOMXPath($doc);
123 $hcardNodes = self::_getChildrenByClass($doc->documentElement, 'vcard', $xp);
127 for ($i = 0; $i < $hcardNodes->length; $i++) {
129 $hcardNode = $hcardNodes->item($i);
131 $hcard = self::_hcardFromNode($hcardNode, $xp, $url);
138 foreach ($hcards as $hcard) {
139 if (in_array($url, $hcard['url'])) {
145 if (!is_null($repr)) {
147 } else if (count($hcards) > 0) {
154 function _getChildrenByClass($el, $cls, $xp)
156 // borrowed from hkit. Thanks dudes!
158 $qry = ".//*[contains(concat(' ',normalize-space(@class),' '),' $cls ')]";
160 $nodes = $xp->query($qry, $el);
165 function _hcardFromNode($hcardNode, $xp, $base)
169 $hcard['url'] = array();
171 $urlNodes = self::_getChildrenByClass($hcardNode, 'url', $xp);
173 for ($j = 0; $j < $urlNodes->length; $j++) {
175 $urlNode = $urlNodes->item($j);
177 if ($urlNode->hasAttribute('href')) {
178 $url = $urlNode->getAttribute('href');
180 $url = $urlNode->textContent;
183 $hcard['url'][] = self::_rel2abs($url, $base);
186 $hcard['photo'] = array();
188 $photoNodes = self::_getChildrenByClass($hcardNode, 'photo', $xp);
190 for ($j = 0; $j < $photoNodes->length; $j++) {
191 $photoNode = $photoNodes->item($j);
192 if ($photoNode->hasAttribute('src')) {
193 $url = $photoNode->getAttribute('src');
194 } else if ($photoNode->hasAttribute('href')) {
195 $url = $photoNode->getAttribute('href');
197 $url = $photoNode->textContent;
199 $hcard['photo'][] = self::_rel2abs($url, $base);
202 $singles = array('nickname', 'note', 'fn', 'n', 'adr');
204 foreach ($singles as $single) {
206 $nodes = self::_getChildrenByClass($hcardNode, $single, $xp);
208 if ($nodes->length > 0) {
209 $node = $nodes->item(0);
210 $hcard[$single] = $node->textContent;
217 // XXX: this is a first pass; we probably need
218 // to handle things like ../ and ./ and so on
220 static function _rel2abs($rel, $wrt)
222 $parts = parse_url($rel);
224 if ($parts === false) {
228 // If it's got a scheme, use it
230 if ($parts['scheme'] != '') {
234 $w = parse_url($wrt);
236 $base = $w['scheme'].'://'.$w['host'];
238 if ($rel[0] == '/') {
242 $wp = explode('/', $w['path']);
246 return $base.implode('/', $wp).'/'.$rel;