From 766b31707037a82ffd9140bfe599c27f4ef01495 Mon Sep 17 00:00:00 2001
From: Mike Macgirvin <mike@macgirvin.com>
Date: Sun, 4 Jul 2010 20:45:56 -0700
Subject: some changes

---
 include/auth.php    |  79 ++++++++++
 include/nav.php     |  23 +++
 mod/dfrn_notify.php |  77 +++++++++
 wip/atom.php        | 440 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 619 insertions(+)
 create mode 100644 include/auth.php
 create mode 100644 include/nav.php
 create mode 100644 mod/dfrn_notify.php
 create mode 100644 wip/atom.php

diff --git a/include/auth.php b/include/auth.php
new file mode 100644
index 000000000..e22651cdd
--- /dev/null
+++ b/include/auth.php
@@ -0,0 +1,79 @@
+<?php
+
+// login/logout 
+
+if((x($_SESSION,'authenticated')) && (! ($_POST['auth-params'] == 'login'))) {
+	if($_POST['auth-params'] == 'logout' || $a->module == "logout") {
+		unset($_SESSION['authenticated']);
+		unset($_SESSION['uid']);
+		unset($_SESSION['visitor_id']);
+		unset($_SESSION['administrator']);
+		$_SESSION['sysmsg'] = "Logged out." . EOL;
+		goaway($a->get_baseurl());
+	}
+	if(x($_SESSION,'uid')) {
+		$r = q("SELECT * FROM `user` WHERE `uid` = %d LIMIT 1",
+			intval($_SESSION['uid']));
+		if($r === NULL || (! count($r))) {
+			goaway($a->get_baseurl());
+		}
+		$a->user = $r[0];
+		if(strlen($a->user['timezone']))
+			date_default_timezone_set($a->user['timezone']);
+
+	}
+}
+else {
+	unset($_SESSION['authenticated']);
+	unset($_SESSION['uid']);
+	unset($_SESSION['visitor_id']);
+	unset($_SESSION['administrator']);
+	$encrypted = hash('whirlpool',trim($_POST['password']));
+
+	if((x($_POST,'auth-params')) && $_POST['auth-params'] == 'login') {
+		$r = q("SELECT * FROM `user` 
+			WHERE `email` = '%s' AND `password` = '%s' LIMIT 1",
+			dbesc(trim($_POST['login-name'])),
+			dbesc($encrypted));
+		if(($r === false) || (! count($r))) {
+			$_SESSION['sysmsg'] = 'Login failed.' . EOL ;
+			goaway($a->get_baseurl());
+  		}
+		$_SESSION['uid'] = $r[0]['uid'];
+		$_SESSION['admin'] = $r[0]['admin'];
+		$_SESSION['authenticated'] = 1;
+		if(x($r[0],'nickname'))
+			$_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['nickname'];
+		else
+			$_SESSION['my_url'] = $a->get_baseurl() . '/profile/' . $r[0]['uid'];
+
+		$_SESSION['sysmsg'] = "Welcome back " . $r[0]['username'] . EOL;
+		$a->user = $r[0];
+		if(strlen($a->user['timezone']))
+			date_default_timezone_set($a->user['timezone']);
+
+	}
+}
+
+// Returns an array of group names this contact is a member of.
+// Since contact-id's are unique and each "belongs" to a given user uid,
+// this array will only contain group names related to the uid of this
+// DFRN contact. They are *not* neccessarily unique across the entire site. 
+
+
+if(! function_exists('init_groups_visitor')) {
+function init_groups_visitor($contact_id) {
+	$groups = array();
+	$r = q("SELECT `group_member`.`gid`, `group`.`name` 
+		FROM `group_member` LEFT JOIN `group` ON `group_member`.`gid` = `group`.`id` 
+		WHERE `group_member`.`contact-id` = %d ",
+		intval($contact_id)
+	);
+	if(count($r)) {
+		foreach($r as $rr)
+			$groups[] = $rr['name'];
+	}
+	return $groups;
+}}
+
+
diff --git a/include/nav.php b/include/nav.php
new file mode 100644
index 000000000..c51c56ad2
--- /dev/null
+++ b/include/nav.php
@@ -0,0 +1,23 @@
+
+<?php
+	$a->page['nav'] .= "<span id=\"nav-link-wrapper\" >\r\n";
+
+	if(x($_SESSION,'uid')) {
+
+		$a->page['nav'] .= "<a id=\"nav-notify-link\" class=\"nav-commlink\" href=\"notifications\">Notifications</a>\r\n";
+
+		$a->page['nav'] .= "<a id=\"nav-messages-link\" class=\"nav-commlink\" href=\"Messages\">Messages</a>\r\n";
+
+
+		$a->page['nav'] .= "<a id=\"nav-logout-link\" class=\"nav-link\" href=\"logout\">Logout</a>\r\n";
+
+		$a->page['nav'] .= "<a id=\"nav-settings-link\" class=\"nav-link\" href=\"settings\">Settings</a>\r\n";
+
+		$a->page['nav'] .= "<a id=\"nav-profiles-link\" class=\"nav-link\" href=\"profiles\">Profiles</a>\r\n";
+
+		$a->page['nav'] .= "<a id=\"nav-contacts-link\" class=\"nav-link\" href=\"contacts\">Contacts</a>\r\n";
+
+		$a->page['nav'] .= "<a id=\"nav-home-link\" class=\"nav-link\" href=\"profile/{$_SESSION['uid']}\">Home</a>\r\n";
+		
+	}
+	$a->page['nav'] .= "</span>\r\n<span id=\"nav-end\"></span>\r\n";
diff --git a/mod/dfrn_notify.php b/mod/dfrn_notify.php
new file mode 100644
index 000000000..c078afe38
--- /dev/null
+++ b/mod/dfrn_notify.php
@@ -0,0 +1,77 @@
+<?php
+
+
+
+
+
+function dfrn_notify_post(&$a) {
+
+	$dfrn_id = notags(trim($_POST['dfrn_id']));
+	$challenge = notags(trim($_POST['challenge']));
+	$data = $_POST['data'];
+
+	$r = q("SELECT * FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+		dbesc($dfrn_id),
+		dbesc($challenge)
+	);
+	if(! count($r))
+		xml_status(3);
+
+	$r = q("DELETE FROM `challenge` WHERE `dfrn-id` = '%s' AND `challenge` = '%s' LIMIT 1",
+		dbesc($dfrn_id),
+		dbesc($challenge)
+	);
+
+
+
+
+
+
+
+}
+
+
+
+
+
+
+
+
+
+
+
+
+function dfrn_notify_content(&$a) {
+
+	if(x($_GET,'dfrn_id')) {
+		// initial communication from external contact
+		$hash = random_string();
+
+		$status = 0;
+
+		$r = q("DELETE FROM `challenge` WHERE `expire` < " . intval(time()));
+
+		$r = q("INSERT INTO `challenge` ( `challenge`, `dfrn-id`, `expire` )
+			VALUES( '%s', '%s', '%s') ",
+			dbesc($hash),
+			dbesc(notags(trim($_GET['dfrn_id']))),
+			intval(time() + 60 )
+		);
+
+		$r = q("SELECT * FROM `contact` WHERE `issued-id` = '%s' AND `blocked` = 0 LIMIT 1",
+			dbesc($_GET['dfrn_id']));
+		if((! count($r)) || (! strlen($r[0]['prvkey'])))
+			$status = 1;
+
+		$challenge = '';
+
+		openssl_private_encrypt($hash,$challenge,$r[0]['prvkey']);
+
+		echo '<?xml version=1.0" encoding="UTF-8"?><dfrn_notify><status>' .$status . '</status><dfrn_id>' . $_GET['dfrn_id'] . '</dfrn_id>'
+			. '<challenge>' . $challenge . '</challenge></dfrn_notify>' . "\r\n" ;
+		session_write_close();
+		exit;
+		
+	}
+
+}
\ No newline at end of file
diff --git a/wip/atom.php b/wip/atom.php
new file mode 100644
index 000000000..5e1c6662e
--- /dev/null
+++ b/wip/atom.php
@@ -0,0 +1,440 @@
+<?php 
+
+$month = 0;
+$year = 0;
+$sort='';
+$category='';
+$category_id = 0;
+$author = '';
+$dest = '';
+$rums = false;
+$blgs = false;
+
+$q = '';
+$glbs = false;
+
+$pagenum = 1;
+$articles_page = 20;
+$startrecord = 0;
+
+  $query_saved = substr($_SERVER['QUERY_STRING'],2); // strip '?=', save
+  
+
+
+
+
+
+  $query_original = substr($query_saved,4);      // strip 'atom'
+
+  $query_original = trim($query_original,'/');
+
+  ereg("[/]?page=([0-9]*)",$query_original,$va);
+  
+  if(((count($va)) > 1) && ($va[1] > 0)) {
+    $pagenum = $va[1];
+    $query_original = ereg_replace("([/]?page=[0-9]*)","",$query_original);
+    $startrecord = ($pagenum * $articles_page) - $articles_page;
+  }
+
+
+  if(substr($query_original,-4,4) == 'text') {
+    $type = 'text';
+    $query_original = substr($query_original,0,-4);
+  }
+
+  $query_original = trim($query_original,'/');
+  
+  if(substr($query_original,0,5) == 'forum') {
+    $rums = true;
+    $query_original = substr($query_original,5);
+  }
+
+  $query_original = trim($query_original,'/');
+  
+  $cmd = explode('/',$query_original);
+
+  if($rums) {
+    if($cmd[0] == 'category') {
+      $category = $cmd[1];       
+    }
+    else
+      $dest = $cmd[0];
+  }
+  else {
+    switch (count($cmd)) {
+      case 2:
+        if($cmd[0] == 'share') {
+          $share = $cmd[1];
+          break;
+        }
+        if(strlen($cmd[1])) {
+          $blgs     = true;
+          $category = $cmd[1];
+        }
+
+        $author     = $cmd[0];
+        break;
+
+      case 1:
+        if(strlen($cmd[0])) {
+          $blgs       = true;
+          $author     = $cmd[0];
+        }
+        break;
+
+      default:
+        break;
+
+    }
+  }
+
+// build the return link
+
+$href = $SITE_URL;
+if($blgs)
+  $href .= preg_replace("@^atom@","/weblog",$query_saved);
+else
+  $href .= preg_replace("@^atom@","",$query_saved);
+$href = preg_replace("@/text$@","",$href);
+$href = preg_replace("@/share/@","/view/",$href);
+
+session_start();
+session_write_close();
+
+if((xint($SITE_RESTRICTED)) && (! xint($_SESSION['authenticated'])))
+  exit;
+
+if($type == "text")
+  header("Content-type: text/plain");
+else
+  header("Content-type: application/atom+xml");
+echo '<?xml version="1.0" encoding="utf-8" ?>'."\r\n"; 
+
+include("globs.php");
+include("sql.php");
+
+$sitesubs = get_default_subs();
+
+// system defaults
+$blog_url    = $SITE_URL;
+$blog_title  = xmlificator($SITE_TITLE);
+$blog_desc   = xmlificator($BLOG_DESC);
+$blog_author = xmlificator($BLOG_AUTHOR);
+$blog_email  = xmlificator($BLOG_EMAIL);
+$blog_logo   = $BLOG_LOGO;
+if((strlen($blog_logo)) && (! strstr($blog_logo,"://")))
+  $blog_logo = $SITE_URL.'/'.$blog_logo;
+
+$category = dbesc($category);
+$author = dbesc($author);
+$dest = dbesc($dest);
+
+if(strlen($category) && (! ($category_id = category::get_cat_id($category,$author))))
+  $category = '';
+
+if(strlen($author)) {
+  $author_info = get_author($author);
+  if(count($author_info)) {
+    $blog_url = xmlificator($SITE_URL.'/weblog/'.$author);
+    if(strlen($author_info[0]['blogname']))
+      $blog_title = xmlificator($author_info[0]['blogname']);
+    if(strlen($author_info[0]['blogdesc']))
+      $blog_desc = xmlificator($author_info[0]['blogdesc']);
+    if(strlen($author_info[0]['fullname']))
+      $blog_author = xmlificator($author_info[0]['fullname']);
+    if(strlen($author_info[0]['email']))
+      $blog_email = xmlificator($author_info[0]['email']);
+    if(strlen($author_info[0]['bloglogo'])) {
+      $blog_logo = xmlificator($author_info[0]['bloglogo']);
+    if((strlen($blog_logo)) && (! strstr($blog_logo,"://")))
+        $blog_logo = $SITE_URL.'/'.$blog_logo;
+    }
+  }
+}
+
+if(strlen($share)) {
+  $x = get_user($share);
+  if(count($x) 
+    && ($x[0]['share']) 
+    && (! $x[0]['lurker'])
+    && (! $x[0]['sharecensor'])
+    && (! $x[0]['sharemutual'])) {
+
+    if(xstr($x[0]['sitetitle']))
+      $blog_title = $x[0]['sitetitle'];
+    if(xstr($x[0]['sitedesc']))
+      $blog_desc = $x[0]['sitedesc'];
+    if(xstr($x[0]['sitelogo']))
+      $blog_logo = $x[0]['sitelogo'];
+
+    $newsubs = get_subs($x[0]['name']);
+    $groups = groupsinit();
+    unset($sitesubs);
+    $sitesubs = array();
+    foreach($newsubs as $sub) {
+      $p = fetch_permissions('forum',$sub);
+      if(check_access($_SESSION['username'], $groups, '',$p))
+        $sitesubs[] = $sub;
+    }
+
+  }
+
+}
+
+
+$media = getmediamap();
+$build_date = gmdate('c');
+$copyright = 'Copyright '.date('Y').' '.$blog_author;
+$canonical = $SITE_URL;
+if(substr($canonical,0,-1) != '/')
+  $canonical .= '/';
+
+$self = $canonical;
+if(substr($query_saved,0,1) == '/')
+ $self .= substr($query_saved,1);
+else
+ $self .= $query_saved;
+
+$subtitle = '';
+if(strlen($blog_desc))
+  $subtitle = "<subtitle>$blog_desc</subtitle>";
+
+echo <<< EOT
+<feed xmlns="http://www.w3.org/2005/Atom"
+      xmlns:thr="http://purl.org/syndication/thread/1.0" >
+
+ <id>$canonical</id>
+ <title>$blog_title</title>
+ <link rel="alternate" href="$href" />
+ <updated>$build_date</updated>
+ $subtitle
+
+EOT;
+
+if(strlen($blog_logo)) {
+echo <<< EOT
+ <logo>$blog_logo</logo>
+
+EOT;
+}
+
+  $article_id_list = array();
+
+    $ss = array();
+
+    $ss['tolerance'] = 0;
+
+    if($category_id)
+      $ss['category_id'] = $category_id;
+
+    if($blgs) {
+      $ss['type'] = 'weblog';
+      $ss['author'] = $author;
+    }
+
+    if($rums) {
+      $ss['type'] = 'forum';
+      $ss['forum'] = $dest;
+    }
+
+
+    $ss['countonly'] = true;
+
+    $rt = article_query($ss);
+    $totalarticles = $rt[0]['total'];
+
+    echo " <link rel=\"self\" href=\"$self\" />\r\n";
+
+    $self = ereg_replace("([/]?page=[0-9]*)","",$self);
+
+    if($totalarticles > $articles_page) {
+
+      if($pagenum != 1) {
+        $ppage = $pagenum - 1;
+        echo " <link rel=\"previous\" href=\"$self/page=$ppage\" />\r\n";
+      }
+      echo " <link rel=\"first\" href=\"$self/".'page=1'."\" />\r\n";
+
+      $numpages = $totalarticles / $articles_page;
+
+      $lastpage = (($numpages > intval($numpages)) 
+         ? intval($numpages)+1 
+         : $numpages);
+
+      echo " <link rel=\"last\" href=\"$self/page=$lastpage\" />\r\n";
+
+      if(($totalarticles - ($articles_page * $pagenum)) > 0) {
+        $npage = $pagenum + 1;
+        echo " <link rel=\"next\" href=\"$self/page=$npage\" />\r\n";
+      }
+    }
+
+
+    unset($ss['countonly']);
+
+    $ss['startat'] = $startrecord;
+    $ss['articles_page'] = $articles_page;
+
+    $r = article_query($ss);    
+
+  if(count($r)) {
+    foreach($r as $rr) {
+      $article_id_list[] = "'".$rr['id']."'";
+    }
+  }
+
+  if(count($article_id_list)) {
+    $rcc = fetch_comments_by_list($article_id_list,'article');
+    $ratt = fetch_attachments_by_list($article_id_list);
+  }
+
+  foreach($r as $rr) {
+
+    $link = "{$SITE_URL}/article/{$rr['guid']}";
+    $datestr = $rr['created'];    
+    $pubdate = gmdate('c',strtotime($datestr.' +0000'));
+    $datestr = $rr['edited'];    
+    $editdate = gmdate('c',strtotime($datestr.' +0000'));
+    if(strstr($rr['type'],'news')) {
+      if(strlen($rr['ext_author']))
+        $authorstr = "<author><name>{$rr['ext_author']}</name></author>\r\n";
+      else
+        $authorstr = "<author><name>External Author</name></author>\r\n";
+       
+    }
+    else {
+      if(strlen($rr['fullname']))
+        $authorstr = "<author><name>{$rr['fullname']}</name></author>\r\n";
+      else
+        $authorstr = "<author><name>{$rr['author']}</name></author>\r\n";
+    }
+    $guid = "urn:uuid:{$rr[guid]}";
+    $comments = "{$SITE_URL}/comments/{$rr['guid']}";
+
+    $contents = $rr['body'];
+
+    if((! $rr['approved']) && (! strstr($rr['type'], 'news')))
+      $contents = filter_images($contents);
+
+    $contents = macro_youtube($contents);
+    $contents = reltoabs($contents,$SITE_URL.'/');
+
+    $title = xmlificator($rr['title']);
+    if(! strlen($title)) {
+      $title = xmlificator(substr($datestr,0,11));
+
+      // Use the first 28 chars of text for the title-summary. Watch that 
+      // we don't end up with a  _partial_ escape sequence at the end.
+
+      $stripped = xmlificator(strip_tags($contents));
+
+      $len = 28;
+      $ok = 0;
+      while(! $ok) {
+        $summary=substr($stripped,0,$len);
+        if(($teststr = strrchr($summary,"&")) && (! strchr($teststr,";"))) {
+          $len --;
+        }
+        else {
+          $ok = 1;
+          break;
+        }
+      }
+
+      // Chopped off words don't look pretty in an RSS title
+ 
+      if(strrpos($summary,' ') > 10)
+        $title .= ' '.substr($summary,0,(strrpos($summary,' ')));
+    }
+
+    $contents .= feed_attachments($ratt,$rr['id']);
+    $contents .= feed_comments($rcc,$rr['id'],$rr['guid'],$rr['rank']);
+
+    $contents = reltoabs($contents,$SITE_URL.'/');
+
+    $contents = xmlificator($contents);
+
+    // output the item
+
+echo <<< EOT
+
+<entry>
+ <id>$guid</id>
+ <title type="html">$title</title>
+ <published>$pubdate</published>
+ <updated>$editdate</updated>
+ <link rel="alternate" href="$link" />
+ <content type="html">$contents</content>
+ $authorstr
+
+EOT;
+
+    $rc = category::categories_by_article($rr['id']);
+    if(count($rc))
+      for($x = 0; $x < count($rc); $x ++)
+        echo ' <category term="'.xmlificator($rc[$x]).'"/>'."\r\n";
+
+    $rat = attachments_fetch($rr['id']);
+    if(count($rat)) {
+      foreach($rat as $att) {
+        $filename = $att['filename'];
+        $ext = substr($filename,strrpos($filename,'.'));
+        $type = 'application/octet-stream';
+        foreach($media as $m) {
+          if($m[0] != $ext)
+            continue;
+          $type = $m[2];
+            break;
+        }
+        echo ' <link rel="enclosure" href="'.$SITE_URL.'/'.xmlificator($filename).'" length="'.$att['size'].'" type="'.$type.'" />'."\r\n";
+        
+      }
+    }
+    echo "</entry>\r\n\r\n";
+
+//    if(($ALLOW_COMMENTS == "1") && (count($rcc))) {
+//      foreach($rcc as $c) { 
+//        if($c['tid'] != $rr['id'])
+//          continue;
+//        $cguid = "urn:uuid:{$c['guid']}";
+//        $datestr = $c['created'];    
+//        $cpubdate = date(c,strtotime($datestr));
+//        
+//        $ccontents = format_avatar($c['avatar'],$c['author'],$c['userid'],
+//                                   $c['censored'],0,'',64).'<br />';
+//        $ccontents .= $c['body'];
+//
+//        $ccontents = filter_images($ccontents);
+//        $ccontents = reltoabs($ccontents,$SITE_URL.'/');
+//        $ccontents = xmlificator($ccontents);
+//        if(strlen($c['fullname']))
+//          $cauthor = xmlificator($c['fullname']);
+//        else
+//          $cauthor = xmlificator($c['author']);        
+//        $cauthorstr = '<author><name>'.$cauthor.'</name>';
+//        if(strlen($c['url']))
+//          $cauthorstr .= '<uri>'.xmlificator($c['url']).'</uri>';
+//        $cauthorstr .= '</author>';
+//
+//echo <<< EOT
+//<entry>
+//<thr:in-reply-to ref="$guid" />
+//<id>$cguid</id>
+//<title type="html">Re: $title</title>
+//<link rel="related" href="$link" />
+//<published>$cpubdate</published>
+//<updated>$cpubdate</updated>
+//<content type="html">$ccontents</content>
+//$cauthorstr
+//</entry>
+//
+//EOT;
+//}
+//}
+
+
+  }
+
+  echo "</feed>\r\n";
+
+?>
-- 
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