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Remove obsolote functions

This commit is contained in:
Michael Vogel 2016-07-09 20:09:09 +02:00
parent 058c93a64c
commit f27bc00464
8 changed files with 117 additions and 333 deletions
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104
include/Probe.php
View File

@ -75,6 +75,7 @@ class Probe {
return false;
$xrd_data = array();
foreach ($links["xrd"]["link"] AS $value => $link) {
if (isset($link["@attributes"]))
$attributes = $link["@attributes"];
@ -95,6 +96,109 @@ class Probe {
return $xrd_data;
}
/**
* @brief Perform Webfinger lookup and return DFRN data
*
* 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 $webbie.
* 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
*
* @param string $webbie Address that should be probed
* @param string $hcard Link to the hcard - is returned by reference
*
* @return string profile link
*/
public static function webfinger_dfrn($webbie, &$hcard) {
if (!strstr($webbie, '@'))
return $webbie;
$profile_link = '';
$links = self::webfinger($webbie);
logger('webfinger_dfrn: '.$webbie.':'.print_r($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;
}
/**
* @brief Check an URI for LRDD data
*
* this is a replacement for the "lrdd" function in include/network.php.
* It isn't used in this class and has some redundancies in the code.
* When time comes we can check the existing calls for "lrdd" if we can rework them.
*
* @param string $uri Address that should be probed
*
* @return array uri data
*/
public static function lrdd($uri) {
$lrdd = self::xrd($uri);
if (!$lrdd) {
$parts = @parse_url($uri);
if (!$parts)
return array();
$host = $parts["host"];
$path_parts = explode("/", trim($parts["path"], "/"));
do {
$lrdd = self::xrd($host);
$host .= "/".array_shift($path_parts);
} while (!$lrdd AND (sizeof($path_parts) > 0));
}
if (!$lrdd)
return array();
foreach ($lrdd AS $key => $link) {
if ($webfinger)
continue;
if (!in_array($key, array("lrdd", "lrdd-xml", "lrdd-json")))
continue;
$path = str_replace('{uri}', urlencode($uri), $link);
$webfinger = self::webfinger($path);
}
if (!is_array($webfinger["links"]))
return false;
$data = array();
foreach ($webfinger["links"] AS $link)
$data[] = array("@attributes" => $link);
if (is_array($webfinger["aliases"]))
foreach ($webfinger["aliases"] AS $alias)
$data[] = array("@attributes" =>
array("rel" => "alias",
"href" => $alias));
return $data;
}
/**
* @brief Fetch information about a given uri
*

320
include/network.php
View File

@ -5,7 +5,7 @@
*/
require_once("include/xml.php");
require_once('include/Probe.php');
/**
* @brief Curl wrapper
@ -371,324 +371,6 @@ function http_status_exit($val, $description = array()) {
}
// 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 $webbie.
// Return an empty string if email-style addresses but webfinger fails,
// or if the resultant personal XRD doesn't contain a supported
// subscription/friend-request attribute.
// amended 7/9/2011 to return an hcard which could save potentially loading
// a lengthy content page to scrape dfrn attributes
function webfinger_dfrn($webbie,&$hcard) {
if(! strstr($webbie,'@')) {
return $webbie;
}
$profile_link = '';
$links = webfinger($webbie);
logger('webfinger_dfrn: ' . $webbie . ':' . print_r($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;
}
/**
* @brief Perform webfinger lookup on an email style address
*
* @param string $webbi An email style address
* @param boolean $debug
*
* @return array of link attributes from the personal XRD file
* empty array on error/failure
*/
function webfinger($webbie, $debug = false) {
$host = '';
if(strstr($webbie,'@')) {
$host = substr($webbie,strpos($webbie,'@') + 1);
}
if(strlen($host)) {
$tpl = fetch_lrdd_template($host);
logger('webfinger: lrdd template: ' . $tpl);
if(strlen($tpl)) {
$pxrd = str_replace('{uri}', urlencode('acct:' . $webbie), $tpl);
logger('webfinger: pxrd: ' . $pxrd);
$links = fetch_xrd_links($pxrd);
if(! count($links)) {
// try with double slashes
$pxrd = str_replace('{uri}', urlencode('acct://' . $webbie), $tpl);
logger('webfinger: pxrd: ' . $pxrd);
$links = fetch_xrd_links($pxrd);
}
return $links;
}
}
return array();
}
function lrdd($uri, $debug = false) {
$a = get_app();
// default priority is host priority, host-meta first
$priority = 'host';
// All we have is an email address. Resource-priority is irrelevant
// because our URI isn't directly resolvable.
if(strstr($uri,'@')) {
return(webfinger($uri));
}
// get the host meta file
$host = @parse_url($uri);
if($host) {
$url = ((x($host,'scheme')) ? $host['scheme'] : 'http') . '://';
$url .= $host['host'] . '/.well-known/host-meta' ;
}
else
return array();
logger('lrdd: constructed url: ' . $url);
$xml = fetch_url($url);
$headers = $a->get_curl_headers();
if (! $xml)
return array();
logger('lrdd: host_meta: ' . $xml, LOGGER_DATA);
if(! stristr($xml,'<xrd'))
return array();
$h = parse_xml_string($xml);
if(! $h)
return array();
$arr = xml::element_to_array($h);
if(isset($arr['xrd']['property'])) {
$property = $arr['crd']['property'];
if(! isset($property[0]))
$properties = array($property);
else
$properties = $property;
foreach($properties as $prop)
if((string) $prop['@attributes'] === 'http://lrdd.net/priority/resource')
$priority = 'resource';
}
// save the links in case we need them
$links = array();
if(isset($arr['xrd']['link'])) {
$link = $arr['xrd']['link'];
if(! isset($link[0]))
$links = array($link);
else
$links = $link;
}
// do we have a template or href?
if(count($links)) {
foreach($links as $link) {
if($link['@attributes']['rel'] && attribute_contains($link['@attributes']['rel'],'lrdd')) {
if(x($link['@attributes'],'template'))
$tpl = $link['@attributes']['template'];
elseif(x($link['@attributes'],'href'))
$href = $link['@attributes']['href'];
}
}
}
if((! isset($tpl)) || (! strpos($tpl,'{uri}')))
$tpl = '';
if($priority === 'host') {
if(strlen($tpl))
$pxrd = str_replace('{uri}', urlencode($uri), $tpl);
elseif(isset($href))
$pxrd = $href;
if(isset($pxrd)) {
logger('lrdd: (host priority) pxrd: ' . $pxrd);
$links = fetch_xrd_links($pxrd);
return $links;
}
$lines = explode("\n",$headers);
if(count($lines)) {
foreach($lines as $line) {
if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
return(fetch_xrd_links($matches[1]));
break;
}
}
}
}
// priority 'resource'
$html = fetch_url($uri);
$headers = $a->get_curl_headers();
logger('lrdd: headers=' . $headers, LOGGER_DEBUG);
// don't try and parse raw xml as html
if(! strstr($html,'<?xml')) {
require_once('library/HTML5/Parser.php');
try {
$dom = HTML5_Parser::parse($html);
} catch (DOMException $e) {
logger('lrdd: parse error: ' . $e);
}
if(isset($dom) && $dom) {
$items = $dom->getElementsByTagName('link');
foreach($items as $item) {
$x = $item->getAttribute('rel');
if($x == "lrdd") {
$pagelink = $item->getAttribute('href');
break;
}
}
}
}
if(isset($pagelink))
return(fetch_xrd_links($pagelink));
// next look in HTTP headers
$lines = explode("\n",$headers);
if(count($lines)) {
foreach($lines as $line) {
/// @TODO Alter the following regex to support multiple relations (space separated)
if((stristr($line,'link:')) && preg_match('/<([^>].*)>.*rel\=[\'\"]lrdd[\'\"]/',$line,$matches)) {
$pagelink = $matches[1];
break;
}
// don't try and run feeds through the html5 parser
if(stristr($line,'content-type:') && ((stristr($line,'application/atom+xml')) || (stristr($line,'application/rss+xml'))))
return array();
if(stristr($html,'<rss') || stristr($html,'<feed'))
return array();
}
}
if(isset($pagelink))
return(fetch_xrd_links($pagelink));
// If we haven't found any links, return the host xrd links (which we have already fetched)
if(isset($links))
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'] && $link['@attributes']['rel'] === 'lrdd' && (!$link['@attributes']['type'] || $link['@attributes']['type'] === 'application/xrd+xml'))
$tpl = $link['@attributes']['template'];
}
if(! strpos($tpl,'{uri}'))
$tpl = '';
return $tpl;
}
/**
* @brief Given a URL, retrieve the page as an XRD document.
*
* @param string $url An url
* @return array of links
* return empty array on error/failure
*/
function fetch_xrd_links($url) {
$xrd_timeout = intval(get_config('system','xrd_timeout'));
$redirects = 0;
$xml = fetch_url($url,false,$redirects,(($xrd_timeout) ? $xrd_timeout : 20), "application/xrd+xml");
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();
$arr = xml::element_to_array($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;
}
/**
* @brief Check URL to se if ts's real
*

5
include/salmon.php
View File

@ -1,15 +1,14 @@
<?php
require_once('include/crypto.php');
require_once('include/Probe.php');
function get_salmon_key($uri,$keyhash) {
$ret = array();
logger('Fetching salmon key for '.$uri);
$arr = lrdd($uri);
$arr = Probe::lrdd($uri);
if(is_array($arr)) {
foreach($arr as $a) {

3
mod/dfrn_confirm.php
View File

@ -16,6 +16,7 @@
require_once('include/enotify.php');
require_once('include/group.php');
require_once('include/Probe.php');
function dfrn_confirm_post(&$a,$handsfree = null) {
@ -356,7 +357,7 @@ function dfrn_confirm_post(&$a,$handsfree = null) {
$poll = (($contact['poll']) ? $contact['poll'] : '');
if((! $contact['notify']) || (! $contact['poll'])) {
$arr = lrdd($contact['url']);
$arr = Probe::lrdd($contact['url']);
if(count($arr)) {
foreach($arr as $link) {
if($link['@attributes']['rel'] === 'salmon')

2
mod/dfrn_request.php
View File

@ -448,7 +448,7 @@ function dfrn_request_post(&$a) {
$network = $data["network"];
// Canonicalise email-style profile locator
$url = webfinger_dfrn($url,$hcard);
$url = Probe::webfinger_dfrn($url,$hcard);
if (substr($url,0,5) === 'stat:') {

3
mod/photos.php
View File

@ -8,6 +8,7 @@ require_once('include/security.php');
require_once('include/redir.php');
require_once('include/tags.php');
require_once('include/threads.php');
require_once('include/Probe.php');
function photos_init(&$a) {
@ -552,7 +553,7 @@ function photos_post(&$a) {
$name = substr($tag,1);
if((strpos($name,'@')) || (strpos($name,'http://'))) {
$newname = $name;
$links = @lrdd($name);
$links = @Probe::lrdd($name);
if(count($links)) {
foreach($links as $link) {
if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')

3
mod/profiles.php
View File

@ -1,5 +1,6 @@
<?php
require_once("include/Contact.php");
require_once('include/Probe.php');
function profiles_init(&$a) {
@ -251,7 +252,7 @@ function profiles_post(&$a) {
$lookup = str_replace('_',' ', $lookup);
if(strpos($lookup,'@') || (strpos($lookup,'http://'))) {
$newname = $lookup;
$links = @lrdd($lookup);
$links = @Probe::lrdd($lookup);
if(count($links)) {
foreach($links as $link) {
if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page') {

10
mod/webfinger.php
View File

@ -1,6 +1,5 @@
<?php
require_once("include/Probe.php");
function webfinger_content(&$a) {
@ -8,16 +7,13 @@ function webfinger_content(&$a) {
$o .= '<form action="webfinger" method="get">';
$o .= 'Lookup address: <input type="text" style="width: 250px;" name="addr" value="' . $_GET['addr'] .'" />';
$o .= '<input type="submit" name="submit" value="Submit" /></form>';
$o .= '<input type="submit" name="submit" value="Submit" /></form>';
$o .= '<br /><br />';
if(x($_GET,'addr')) {
$addr = trim($_GET['addr']);
if(strpos($addr,'@' !== false))
$res = webfinger($addr);
else
$res = lrdd($addr);
$res = Probe::lrdd($addr);
$o .= '<pre>';
$o .= str_replace("\n",'<br />',print_r($res,true));
$o .= '</pre>';