two-way subscriptions working with federated social accounts

boot.php

@@ -409,7 +409,7 @@ function fetch_url($url,$binary = false, &$redirects = 0) {
 // post request to $url. $params is an array of post variables.
 
 if(! function_exists('post_url')) {
-function post_url($url,$params, &$redirects = 0) {
+function post_url($url,$params, $headers = null, &$redirects = 0) {
 	$ch = curl_init($url);
 	if(($redirects > 8) || (! $ch)) 
 		return false;
@@ -419,6 +419,9 @@ function post_url($url,$params, &$redirects = 0) {
 	curl_setopt($ch, CURLOPT_POST,1);
 	curl_setopt($ch, CURLOPT_POSTFIELDS,$params);
 
+	if(is_array($headers))
+		curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
+
 	$check_cert = get_config('system','verifyssl');
 	curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, (($check_cert) ? true : false));
 	$prx = get_config('system','proxy');
@@ -446,7 +449,7 @@ function post_url($url,$params, &$redirects = 0) {
         $url_parsed = parse_url($url);
         if (isset($url_parsed)) {
             $redirects++;
-            return post_url($url,$binary,$redirects);
+            return post_url($url,$binary,$headers,$redirects);
         }
     }
 	$a = get_app();
@@ -1256,4 +1259,20 @@ function load_view_file($s) {
 	return file_get_contents($s);
 }}
 
+// for html,xml parsing - let's say you've got
+// an attribute foobar="class1 class2 class3"
+// and you want to find out if it contains 'class3'.
+// you can't use a normal sub string search because you
+// might match 'notclass3' and a regex to do the job is 
+// possible but a bit complicated. 
+// pass the attribute string as $attr and the attribute you 
+// are looking for as $s - returns true if found, otherwise false
+
+if(! function_exists('attribute_contains')) {
+function attribute_contains($attr,$s) {
+	$a = explode(' ', $attr);
+	if(count($a) && in_array($s,$a))
+		return true;
+	return false;
+}}
 

include/Scrape.php

@@ -2,15 +2,6 @@
 
 require_once('library/HTML5/Parser.php');
 
-if(! function_exists('attribute_contains')) {
-function attribute_contains($attr,$s) {
-	$a = explode(' ', $attr);
-	if(count($a) && in_array($s,$a))
-		return true;
-	return false;
-}}
-
-
 if(! function_exists('scrape_dfrn')) {
 function scrape_dfrn($url) {
 
@@ -107,3 +98,40 @@ function scrape_meta($url) {
 
 	return $ret;
 }}
+
+
+if(! function_exists('scrape_vcard')) {
+function scrape_vcard($url) {
+
+	$ret = array();
+	$s = fetch_url($url);
+
+	if(! $s) 
+		return $ret;
+
+	$dom = HTML5_Parser::parse($s);
+
+	if(! $dom)
+		return $ret;
+
+	// Pull out hCard profile elements
+
+	$items = $dom->getElementsByTagName('*');
+	foreach($items as $item) {
+		if(attribute_contains($item->getAttribute('class'), 'vcard')) {
+			$level2 = $item->getElementsByTagName('*');
+			foreach($level2 as $x) {
+				if(attribute_contains($x->getAttribute('class'),'fn'))
+					$ret['fn'] = $x->textContent;
+				if((attribute_contains($x->getAttribute('class'),'photo'))
+					|| (attribute_contains($x->getAttribute('class'),'avatar')))
+					$ret['photo'] = $x->getAttribute('src');
+				if((attribute_contains($x->getAttribute('class'),'nickname'))
+					|| (attribute_contains($x->getAttribute('class'),'uid')))
+					$ret['nick'] = $x->textContent;
+			}
+		}
+	}
+
+	return $ret;
+}}

include/auth.php

@@ -41,7 +41,7 @@ if((x($_SESSION,'authenticated')) && (! ($_POST['auth-params'] === 'login'))) {
 
 		$_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $a->user['nickname'];
 
-		$r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1",
+		$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `self` = 1 LIMIT 1",
 			intval($_SESSION['uid']));
 		if(count($r)) {
 			$a->contact = $r[0];
@@ -91,6 +91,7 @@ else {
 		$r = q("SELECT * FROM `contact` WHERE `uid` = %s AND `self` = 1 LIMIT 1",
 			intval($_SESSION['uid']));
 		if(count($r)) {
+			$a->contact = $r[0];
 			$a->cid = $r[0]['id'];
 			$_SESSION['cid'] = $a->cid;
 		}

include/salmon.php

@@ -105,7 +105,8 @@ $namespaces = <<< EOT
       xmlns:media="http://purl.org/syndication/atommedia"
       xmlns:dfrn="http://purl.org/macgirvin/dfrn/1.0" 
       xmlns:as="http://activitystrea.ms/spec/1.0/"
-      xmlns:georss="http://www.georss.org/georss" >
+      xmlns:georss="http://www.georss.org/georss" 
+      xmlns:poco="http://portablecontacts.net/spec/1.0" >
 EOT;
 
 	$slap = str_replace('<entry>',$namespaces,$slap);
@@ -129,7 +130,7 @@ EOT;
     $rsa->setHash('sha256');
 	$rsa->loadKey($owner['sprvkey']);
 
-    $signature = $rsa->sign($data);
+    $signature = base64url_encode($rsa->sign($data));
 
 	$salmon_tpl = load_view_file('view/magicsig.tpl');
 	$salmon = replace_macros($salmon_tpl,array(
@@ -141,7 +142,13 @@ EOT;
 	));
 
 	// slap them 
-	post_url($contact['notify'],$salmon);
+	post_url($contact['notify'],$salmon, array(
+		'Content-type: application/magic-envelope+xml',
+		'Content-length: ' . strlen($salmon)
+	));
+
+	$a = get_app();
+	echo "CURL returned: " . $a->get_curl_code() . "\n";
  
 	return;
 }

mod/contacts.php

@@ -8,6 +8,14 @@ function contacts_init(&$a) {
 
 	if($a->config['register_policy'] != REGISTER_CLOSED)
 		$a->page['aside'] .= '<div class="side-invite-link-wrapper" id="side-invite-link-wrapper" ><a href="invite" class="side-invite-link" id="side-invite-link">' . t("Invite Friends") . '</a></div>';
+
+	$tpl = load_view_file('view/follow.tpl');
+	$a->page['aside'] .= replace_macros($tpl,array(
+		'$label' => t('Connect/Follow [profile address]'),
+		'$hint' => t('Example: bob@example.com, http://example.com/barbara'),
+		'$follow' => t('Follow')
+	));
+
 }
 
 function contacts_post(&$a) {
@@ -150,6 +158,8 @@ function contacts_content(&$a) {
 			return;
 		}
 
+		$_SESSION['return_url'] = $a->get_baseurl() . '/' . $a->cmd;
+
 		require_once('view/contact_selectors.php');
 
 		$tpl = load_view_file("view/contact_edit.tpl");

mod/dfrn_request.php

@@ -472,13 +472,17 @@ function dfrn_request_content(&$a) {
 		return; // NOTREACHED
 	}
 	else {
-
+		$myaddr = ((x($_GET,'address')) ? urldecode($_GET['address']) : '');
 		// Normal web request. Display our user's introduction form. 
 		if($a->profile['page-flags'] == PAGE_NORMAL)
 			$tpl = load_view_file('view/dfrn_request.tpl');
 		else
 			$tpl = load_view_file('view/auto_request.tpl');
-		$o .= replace_macros($tpl,array('$nickname' => $a->argv[1]));
+		$o .= replace_macros($tpl,array(
+			'$nickname' => $a->argv[1],
+			'$name' => $a->profile['name'],
+			'$myaddr' => $myaddr
+		));
 		return $o;
 	}
 

mod/follow.php

@@ -0,0 +1,200 @@
+<?php
+
+require_once('Scrape.php');
+
+function follow_post(&$a) {
+
+	if(! local_user()) {
+		notice( t('Permission denied.') . EOL);
+		goaway($_SESSION['return_url']);
+		// NOTREACHED
+	}
+
+	$url = notags(trim($_POST['url']));
+
+	if($url) {
+		$links = lrdd($url);
+		if(count($links)) {
+			foreach($links as $link) {
+				if($link['@attributes']['rel'] === NAMESPACE_DFRN)
+					$dfrn = $link['@attributes']['href'];
+				if($link['@attributes']['rel'] === 'salmon')
+					$notify = $link['@attributes']['href'];
+				if($link['@attributes']['rel'] === NAMESPACE_FEED)
+					$poll = $link['@attributes']['href'];
+				if($link['@attributes']['rel'] === 'http://microformats.org/profile/hcard')
+					$hcard = $link['@attributes']['href'];
+				if($link['@attributes']['rel'] === 'http://webfinger.net/rel/profile-page')
+					$profile = $link['@attributes']['href'];
+
+			}
+		}
+	}	
+
+	// If we find a DFRN site, send our subscriber to the other person's
+	// dfrn_request page and all the other details will get sorted.
+
+	if(strlen($dfrn)) {
+		$ret = scrape_dfrn($dfrn);
+		if(is_array($ret) && x($ret,'dfrn-request')) {
+			if(strlen($a->path))
+				$myaddr = urlencode($a->get_baseurl() . '/profile/' . $a->user['nickname']);
+			else
+				$myaddr = urlencode($a->user['nickname'] . '@' . $a->get_hostname());
+ 
+			goaway($ret['dfrn-request'] . "&address=$myaddr");
+		
+			// NOTREACHED
+		}
+	}
+
+	if($hcard) {
+		$vcard = scrape_vcard($hcard);
+	}
+
+	if(! $profile)
+		$profile = $url;
+
+	// do we have enough information?
+
+	if(! x($vcard,'fn'))
+		if(x($vcard,'nick'))
+			$vcard['fn'] = $vcard['nick'];
+
+	if(! ((x($vcard['fn'])) && ($poll) && ($notify) && ($profile))) {
+		notice( t('The profile address specified does not provide adequate information.') . EOL);
+		goaway($_SESSION['return_url']);
+	} 
+
+	if(! x($vcard,'photo'))
+		$vcard['photo'] = $a->get_baseurl() . '/images/default-profile.jpg' ; 
+
+	// check if we already have a contact
+
+	$r = q("SELECT * FROM `contact` WHERE `uid` = %d AND `poll` = '%s' LIMIT 1",
+		intval(local_user()),
+		dbesc($poll)
+	);			
+	if($r) {
+		// update contact
+		if($r[0]['rel'] == REL_VIP) {
+			q("UPDATE `contact` SET `rel` = %d WHERE `id` = %d AND `uid` = %d LIMIT 1",
+				intval(REL_BUD),
+				intval($r[0]['id']),
+				intval(local_user())
+			);
+		}
+	}
+	else {
+		// create contact record 
+		$r = q("INSERT INTO `contact` ( `uid`, `created`, `url`, `notify`, `poll`, `name`, `nick`, `photo`, `network`, `rel`, 
+			`blocked`, `readonly`, `pending` )
+			VALUES ( %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%s', %d, 0, 0, 0 ) ",
+			intval(local_user()),
+			dbesc(datetime_convert()),
+			dbesc($profile),
+			dbesc($notify),
+			dbesc($poll),
+			dbesc($vcard['fn']),
+			dbesc($vcard['nick']),
+			dbesc($vcard['photo']),
+			dbesc('stat'),
+			intval(REL_FAN)
+		);
+	}
+	$r = q("SELECT * FROM `contact` WHERE `url` = '%s' AND `uid` = %d LIMIT 1",
+		dbesc($profile),
+		intval(local_user())
+	);
+	if(! count($r)) {
+		notice( t('Unable to retrieve contact information.') . EOL);
+		goaway($_SESSION['return_url']);
+		// NOTREACHED
+	}
+
+	$contact = $r[0];
+	$contact_id  = $r[0]['id'];
+
+	require_once("Photo.php");
+
+	$photo_failure = false;
+
+	$filename = basename($vcard['photo']);
+	$img_str = fetch_url($vcard['photo'],true);
+	$img = new Photo($img_str);
+	if($img->is_valid()) {
+
+		$img->scaleImageSquare(175);
+					
+		$hash = photo_new_resource();
+
+		$r = $img->store(local_user(), $contact_id, $hash, $filename, t('Contact Photos'), 4 );
+
+		if($r === false)
+			$photo_failure = true;
+
+		$img->scaleImage(80);
+
+		$r = $img->store(local_user(), $contact_id, $hash, $filename, t('Contact Photos'), 5 );
+
+		if($r === false)
+			$photo_failure = true;
+
+		$photo = $a->get_baseurl() . '/photo/' . $hash . '-4.jpg';
+		$thumb = $a->get_baseurl() . '/photo/' . $hash . '-5.jpg';
+	}
+	else
+		$photo_failure = true;
+
+	if($photo_failure) {
+		$photo = $a->get_baseurl() . '/images/default-profile.jpg';
+		$thumb = $a->get_baseurl() . '/images/default-profile-sm.jpg';
+	}
+
+	$r = q("UPDATE `contact` SET `photo` = '%s', 
+			`thumb` = '%s', 
+			`name-date` = '%s', 
+			`uri-date` = '%s', 
+			`avatar-date` = '%s'
+			WHERE `id` = %d LIMIT 1
+		",
+			dbesc($photo),
+			dbesc($thumb),
+			dbesc(datetime_convert()),
+			dbesc(datetime_convert()),
+			dbesc(datetime_convert()),
+			intval($contact_id)
+		);			
+
+
+	// pull feed and consume it, which should subscribe to the hub.
+
+
+	// create a follow slap
+
+	$tpl = load_view_file('view/follow_slap.tpl');
+	$slap = replace_macros($tpl, array(
+		'$name' => $a->user['username'],
+		'$profile_page' => $a->get_baseurl() . '/profile/' . $a->user['nickname'],
+		'$photo' => $a->contact['photo'],
+		'$thumb' => $a->contact['thumb'],
+		'$published' => datetime_convert('UTC','UTC', 'now', ATOM_TIME),
+		'$item_id' => 'urn:X-dfrn:' . $a->get_hostname() . ':follow:' . random_string(),
+		'$title' => '',
+		'$type' => 'text',
+		'$content' => t('following'),
+		'$nick' => $a->user['nickname'],
+		'$verb' => ACTIVITY_FOLLOW
+	));
+
+	$r = q("SELECT `contact`.*, `user`.* FROM `contact` LEFT JOIN `user` ON `contact`.`uid` = `user`.`uid` 
+			WHERE `user`.`uid` = %d AND `contact`.`self` = 1 LIMIT 1",
+			intval(local_user())
+	);
+
+	require_once('include/salmon.php');
+	slapper($r[0],$contact,$slap);
+
+	goaway($_SESSION['return_url']);
+	// NOTREACHED
+}

mod/xrd.php

@@ -5,11 +5,16 @@ require_once('salmon.php');
 function xrd_content(&$a) {
 
 	$uri = urldecode(notags(trim($_GET['uri'])));
+
+	if(substr($uri,0,4) === 'http')
+		$name = basename($uri);
+	else {
 		$local = str_replace('acct:', '', $uri);
 		if(substr($local,0,2) == '//')
 			$local = substr($local,2);
 
 		$name = substr($local,0,strpos($local,'@'));
+	}
 
 	$r = q("SELECT * FROM `user` WHERE `nickname` = '%s' LIMIT 1",
 		dbesc($name)

view/atom_feed.tpl

@@ -5,7 +5,8 @@
       xmlns:media="http://purl.org/syndication/atommedia"
       xmlns:dfrn="http://purl.org/macgirvin/dfrn/1.0" 
       xmlns:as="http://activitystrea.ms/spec/1.0/"
-      xmlns:georss="http://www.georss.org/georss" >
+      xmlns:georss="http://www.georss.org/georss" 
+      xmlns:poco="http://portablecontacts.net/spec/1.0" >
 
   <id>$feed_id</id>
   <title>$feed_title</title>

view/auto_request.tpl

@@ -5,7 +5,7 @@
 Please enter your profile address from one of the following supported social networks:<br />
 <ul id="dfrn-request-networks">
 <li><a href="http://dfrn.org">Mistpark/DFRN</a> (fully supported)</li>
-<li><a href="http://ostatus.org">Federation/OStatus/Diaspora/GNU-social</a> (limited - experimental)</li>
+<li><a href="http://ostatus.org">StatusNet/GNU-social/Federation</a> (limited - experimental)</li>
 </ul>
 </p>
 
@@ -13,7 +13,7 @@ Please enter your profile address from one of the following supported social net
 
 <div id="dfrn-request-url-wrapper" >
 	<label id="dfrn-url-label" for="dfrn-url" >Your profile address:</label>
-	<input type="text" name="dfrn_url" id="dfrn-url" size="32" />
+	<input type="text" name="dfrn_url" id="dfrn-url" size="32" value="$myaddr" />
 	<div id="dfrn-request-url-end"></div>
 </div>
 

view/dfrn_request.tpl

@@ -6,7 +6,7 @@ You may request a connection with this member if you have a valid profile addres
 on one of the following social networks:<br />
 <ul id="dfrn-request-networks">
 <li><a href="http://dfrn.org">Mistpark/DFRN</a> (fully supported)</li>
-<li><a href="http://ostatus.org">Federation/OStatus/Diaspora/GNU-social</a> (limited - experimental)</li>
+<li><a href="http://ostatus.org">StatusNet/GNU-social/Federation</a> (limited - experimental)</li>
 </ul>
 </p>
 
@@ -14,7 +14,7 @@ on one of the following social networks:<br />
 
 <div id="dfrn-request-url-wrapper" >
 	<label id="dfrn-url-label" for="dfrn-url" >Your profile address:</label>
-	<input type="text" name="dfrn_url" id="dfrn-url" size="32" />
+	<input type="text" name="dfrn_url" id="dfrn-url" size="32" value="$myaddr" />
 	<div id="dfrn-request-url-end"></div>
 </div>
 
@@ -25,7 +25,7 @@ Please answer the following:
 <div id="dfrn-request-info-wrapper" >
 
 <p id="doiknowyou">
-Do I know you?
+Does $name know you?
 </p>
 
 		<div id="dfrn-request-know-yes-wrapper">

view/follow.tpl

@@ -0,0 +1,10 @@
+<div class="side-follow-wrapper" id="side-follow-wrapper" >
+<form action="follow" method="post" />
+<label id="side-follow-label" for="side-follow-url" >$label</label>
+<input id="side-follow-url" type="text" name="url" size="24" title="$hint" />
+<div class="side-follow-input-end"></div>
+<input id="side-follow-submit" type="submit" name="submit" value="$follow" />
+</form>
+</div>
+<div class="side-follow-end"></div>
+

view/follow_slap.tpl

@@ -0,0 +1,24 @@
+	<entry>
+		<author>
+			<name>$name</name>
+			<uri>$profile_page</uri>
+			<link rel="photo"  type="image/jpeg" media:width="80" media:height="80" href="$thumb" />
+			<link rel="avatar" type="image/jpeg" media:width="80" media:height="80" href="$thumb" />
+		</author>
+
+		<id>$item_id</id>
+		<title>$title</title>
+		<published>$published</published>
+		<content type="$type" >$content</content>
+
+		<as:actor>
+		<as:object-type>http://activitystrea.ms/schema/1.0/person</as:object-type>
+		<id>$profile_page</id>
+		<title></title>
+ 		<link rel="avatar" type="image/jpeg" media:width="175" media:height="175" href="$photo"/>
+		<link rel="avatar" type="image/jpeg" media:width="80" media:height="80" href="$thumb"/>
+		<poco:preferredUsername>$nick</poco:preferredUsername>
+		<poco:displayName>$name</poco:displayName>
+		</as:actor>
+ 		<as:verb>$verb</as:verb>
+	</entry>

view/magicsig.tpl

@@ -1,9 +1,9 @@
-<?xml version='1.0' encoding='UTF-8'?>
-<me:env xmlns:me='http://salmon-protocol.org/ns/magic-env'>
-<me:data type='application/atom+xml'>
+<?xml version="1.0" encoding="UTF-8"?>
+<me:env xmlns:me="http://salmon-protocol.org/ns/magic-env">
+<me:data type="application/atom+xml">
 $data
 </me:data>
 <me:encoding>$encoding</me:encoding>
-<me:alg>$algorithm</me:/alg>
+<me:alg>$algorithm</me:alg>
 <me:sig keyash="$keyhash">$signature</me:sig>
 </me:env>

view/theme/default/style.css

@@ -32,9 +32,12 @@ input, select {
 	border: 1px solid #858585;
 }
 input:hover {
+
 	background-color: #29BBF2;
-	color: #F5F6FB;
-	border: 1px solid #F5F6FB;
+/*	background-color: #49dbFa; */
+	color: black;
+/*	color: #F5F6FB; */
+/*	border: 1px solid #F5F6FB; */
 	cursor: pointer;
 }
 option {
@@ -1550,6 +1553,16 @@ a.mail-list-link:hover {
 	margin-top: 10px;
 }
 
+#side-follow-wrapper {
+	margin-top: 20px;
+}
+#side-follow-url {
+	margin-top: 5px;
+}
+#side-follow-submit {
+	margin-top: 15px;
+}
+
 .photo-album-image-wrapper {
 	float: left;
 	margin-top: 15px;