aboutsummaryrefslogtreecommitdiffstats
path: root/include/network.php
diff options
context:
space:
mode:
Diffstat (limited to 'include/network.php')
-rw-r--r--include/network.php244
1 files changed, 149 insertions, 95 deletions
diff --git a/include/network.php b/include/network.php
index 66bba5b38..1a974a681 100644
--- a/include/network.php
+++ b/include/network.php
@@ -337,101 +337,6 @@ function convert_xml_element_to_array($xml_element, &$recursion_depth=0) {
}
}
-// Given an email style address, perform webfinger lookup and
-// return the resulting DFRN profile URL, or if no DFRN profile URL
-// is located, returns an OStatus subscription template (prefixed
-// with the string 'stat:' to identify it as on OStatus template).
-// If this isn't an email style address just return $s.
-// Return an empty string if email-style addresses but webfinger fails,
-// or if the resultant personal XRD doesn't contain a supported
-// subscription/friend-request attribute.
-
-// amended 7/9/2011 to return an hcard which could save potentially loading
-// a lengthy content page to scrape dfrn attributes
-
-
-function webfinger_dfrn($s,&$hcard) {
- if(! strstr($s,'@')) {
- return $s;
- }
- $profile_link = '';
-
- $links = webfinger($s);
- logger('webfinger_dfrn: ' . $s . ':' . print_r($links,true), LOGGER_DATA);
- if(count($links)) {
- foreach($links as $link) {
- if($link['@attributes']['rel'] === NAMESPACE_DFRN)
- $profile_link = $link['@attributes']['href'];
- if($link['@attributes']['rel'] === NAMESPACE_OSTATUSSUB)
- $profile_link = 'stat:' . $link['@attributes']['template'];
- if($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
- $hcard = $link['@attributes']['href'];
- }
- }
- return $profile_link;
-}
-
-// Given an email style address, perform webfinger lookup and
-// return the array of link attributes from the personal XRD file.
-// On error/failure return an empty array.
-
-
-
-function webfinger($s, $debug = false) {
- $host = '';
- if(strstr($s,'@')) {
- $host = substr($s,strpos($s,'@') + 1);
- }
- if(strlen($host)) {
- $tpl = fetch_lrdd_template($host);
- logger('webfinger: lrdd template: ' . $tpl);
- if(strlen($tpl)) {
- $pxrd = str_replace('{uri}', urlencode('acct:' . $s), $tpl);
- logger('webfinger: pxrd: ' . $pxrd);
- $links = fetch_xrd_links($pxrd);
- if(! count($links)) {
- // try with double slashes
- $pxrd = str_replace('{uri}', urlencode('acct://' . $s), $tpl);
- logger('webfinger: pxrd: ' . $pxrd);
- $links = fetch_xrd_links($pxrd);
- }
- return $links;
- }
- }
- return array();
-}
-
-
-
-
-// Given a host name, locate the LRDD template from that
-// host. Returns the LRDD template or an empty string on
-// error/failure.
-
-
-function fetch_lrdd_template($host) {
- $tpl = '';
-
- $url1 = 'https://' . $host . '/.well-known/host-meta' ;
- $url2 = 'http://' . $host . '/.well-known/host-meta' ;
- $links = fetch_xrd_links($url1);
- logger('fetch_lrdd_template from: ' . $url1);
- logger('template (https): ' . print_r($links,true));
- if(! count($links)) {
- logger('fetch_lrdd_template from: ' . $url2);
- $links = fetch_xrd_links($url2);
- logger('template (http): ' . print_r($links,true));
- }
- if(count($links)) {
- foreach($links as $link)
- if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd')
- $tpl = $link['@attributes']['template'];
- }
- if(! strpos($tpl,'{uri}'))
- $tpl = '';
- return $tpl;
-}
-
// Take a URL from the wild, prepend http:// if necessary
// and check DNS to see if it's real (or check if is a valid IP address)
// return true if it's OK, false if something is wrong with it
@@ -912,3 +817,152 @@ function email_send($addr, $subject, $headers, $item) {
logger('notifier: email delivery to ' . $addr);
mail($addr, $subject, $body, $headers);
}
+
+
+function discover_by_webbie($webbie) {
+
+ $x = webfinger_rfc7033($webbie);
+ if($x && array_key_exists('links',$x) && $x['links']) {
+ foreach($x['links'] as $link) {
+ if(array_key_exists('rel',$link) && $link['rel'] == 'http://purl.org/zot/protocol') {
+ logger('discover_by_webbie: zot found for ' . $webbie);
+ $z = z_fetch_url($link['href']);
+ if($z['success']) {
+ $j = json_decode($z['body'],true);
+ $i = import_xchan($j);
+ return true;
+ }
+ }
+ }
+ }
+
+ $x = old_webfinger($webbie);
+ if($x) {
+ logger('old_webfinger: ' . print_r($x,true));
+ }
+}
+
+
+function webfinger_rfc7033($webbie) {
+
+
+ if(! strpos($webbie,'@'))
+ return false;
+ $lhs = substr($webbie,0,strpos($webbie,'@'));
+ $rhs = substr($webbie,strpos($webbie,'@')+1);
+
+ $resource = 'acct:' . $webbie;
+
+ $s = z_fetch_url('https://' . $rhs . '/.well-known/webfinger?resource=' . $resource);
+
+ if($s['success'])
+ $j = json_decode($s['body'],true);
+ else
+ return false;
+ return($j);
+}
+
+
+function old_webfinger($webbie) {
+
+ $host = '';
+ if(strstr($webbie,'@'))
+ $host = substr($webbie,strpos($webbie,'@') + 1);
+
+ if(strlen($host)) {
+ $tpl = fetch_lrdd_template($host);
+ logger('old_webfinger: lrdd template: ' . $tpl,LOGGER_DATA);
+ if(strlen($tpl)) {
+ $pxrd = str_replace('{uri}', urlencode('acct:' . $webbie), $tpl);
+ logger('old_webfinger: pxrd: ' . $pxrd,LOGGER_DATA);
+ $links = fetch_xrd_links($pxrd);
+ if(! count($links)) {
+ // try with double slashes
+ $pxrd = str_replace('{uri}', urlencode('acct://' . $webbie), $tpl);
+ logger('old_webfinger: pxrd: ' . $pxrd,LOGGER_DATA);
+ $links = fetch_xrd_links($pxrd);
+ }
+ return $links;
+ }
+ }
+ return array();
+}
+
+
+function fetch_lrdd_template($host) {
+ $tpl = '';
+
+ $url1 = 'https://' . $host . '/.well-known/host-meta' ;
+ $url2 = 'http://' . $host . '/.well-known/host-meta' ;
+ $links = fetch_xrd_links($url1);
+ logger('fetch_lrdd_template from: ' . $url1, LOGGER_DEBUG);
+ logger('template (https): ' . print_r($links,true),LOGGER_DEBUG);
+ if(! count($links)) {
+ logger('fetch_lrdd_template from: ' . $url2);
+ $links = fetch_xrd_links($url2);
+ logger('template (http): ' . print_r($links,true),LOGGER_DEBUG);
+ }
+ if(count($links)) {
+ foreach($links as $link)
+ if($link['@attributes']['rel'] && $link['@attributes']['rel'] === 'lrdd' && (!$link['@attributes']['type'] || $link['@attributes']['type'] === 'application/xrd+xml'))
+ $tpl = $link['@attributes']['template'];
+ }
+ if(! strpos($tpl,'{uri}'))
+ $tpl = '';
+ return $tpl;
+
+}
+
+
+function fetch_xrd_links($url) {
+
+logger('fetch_xrd_links: ' . $url);
+
+ $redirects = 0;
+ $x = z_fetch_url($url,false,$redirects,array('timeout' => 20));
+
+ if(! $x['success'])
+ return array();
+
+ $xml = $x['body'];
+ logger('fetch_xrd_links: ' . $xml, LOGGER_DATA);
+
+ if ((! $xml) || (! stristr($xml,'<xrd')))
+ return array();
+
+ // fix diaspora's bad xml
+ $xml = str_replace(array('href=&quot;','&quot;/>'),array('href="','"/>'),$xml);
+
+ $h = parse_xml_string($xml);
+ if(! $h)
+ return array();
+
+ $arr = convert_xml_element_to_array($h);
+
+ $links = array();
+
+ if(isset($arr['xrd']['link'])) {
+ $link = $arr['xrd']['link'];
+
+ if(! isset($link[0]))
+ $links = array($link);
+ else
+ $links = $link;
+ }
+ if(isset($arr['xrd']['alias'])) {
+ $alias = $arr['xrd']['alias'];
+ if(! isset($alias[0]))
+ $aliases = array($alias);
+ else
+ $aliases = $alias;
+ if(is_array($aliases) && count($aliases)) {
+ foreach($aliases as $alias) {
+ $links[]['@attributes'] = array('rel' => 'alias' , 'href' => $alias);
+ }
+ }
+ }
+
+ logger('fetch_xrd_links: ' . print_r($links,true), LOGGER_DATA);
+
+ return $links;
+} \ No newline at end of file