From 011ca56e93eae186667adbf9957a82115e5f762e Mon Sep 17 00:00:00 2001
From: friendica <info@friendica.com>
Date: Fri, 16 Nov 2012 16:13:02 -0800
Subject: remove include/salmon

---
 include/delivery.php |   1 -
 include/salmon.php   | 195 ---------------------------------------------------
 2 files changed, 196 deletions(-)
 delete mode 100644 include/salmon.php

diff --git a/include/delivery.php b/include/delivery.php
index ed624e79f..89511bfa2 100644
--- a/include/delivery.php
+++ b/include/delivery.php
@@ -210,7 +210,6 @@ function delivery_run($argv, $argc){
 
 		logger('notifier: slaps: ' . print_r($slaps,true), LOGGER_DATA);
 
-		require_once('include/salmon.php');
 
 		if($contact['self'])
 			continue;
diff --git a/include/salmon.php b/include/salmon.php
deleted file mode 100644
index ae885dcab..000000000
--- a/include/salmon.php
+++ /dev/null
@@ -1,195 +0,0 @@
-<?php
-
-require_once('include/crypto.php');
-
-
-
-function get_salmon_key($uri,$keyhash) {
-	$ret = array();
-
-	logger('Fetching salmon key');
-
-	$arr = lrdd($uri);
-
-	if(is_array($arr)) {
-		foreach($arr as $a) {
-			if($a['@attributes']['rel'] === 'magic-public-key') {
-				$ret[] = $a['@attributes']['href'];
-			}
-		}
-	}
-	else {
-		return '';
-	}
-
-	// We have found at least one key URL
-	// If it's inline, parse it - otherwise get the key
-
-	if(count($ret)) {
-		for($x = 0; $x < count($ret); $x ++) {
-			if(substr($ret[$x],0,5) === 'data:') {
-				if(strstr($ret[$x],','))
-					$ret[$x] = substr($ret[$x],strpos($ret[$x],',')+1);
-				else
-					$ret[$x] = substr($ret[$x],5);
-			}
-			else
-				$ret[$x] = fetch_url($ret[$x]);
-		}
-	}
-
-
-	logger('Key located: ' . print_r($ret,true));
-
-	if(count($ret) == 1) {
-
-		// We only found one one key so we don't care if the hash matches.
-		// If it's the wrong key we'll find out soon enough because 
-		// message verification will fail. This also covers some older 
-		// software which don't supply a keyhash. As long as they only
-		// have one key we'll be right. 
-
-		return $ret[0];
-	}
-	else {
-		foreach($ret as $a) {
-			$hash = base64url_encode(hash('sha256',$a));
-			if($hash == $keyhash)
-				return $a;
-		}
-	}
-
-	return '';
-}
-
-	
-		
-function slapper($owner,$url,$slap) {
-
-	logger('slapper called. Data: ' . $slap);
-
-	// does contact have a salmon endpoint? 
-
-	if(! strlen($url))
-		return;
-
-
-	if(! $owner['prvkey']) {
-		logger(sprintf("slapper: user '%s' (%d) does not have a salmon private key. Send failed.",
-		$owner['username'],$owner['uid']));
-		return;
-	}
-
-	// add all namespaces to item
-
-$namespaces = <<< EOT
-<entry xmlns="http://www.w3.org/2005/Atom"
-      xmlns:thr="http://purl.org/syndication/thread/1.0"
-      xmlns:at="http://purl.org/atompub/tombstones/1.0"
-      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:poco="http://portablecontacts.net/spec/1.0" 
-      xmlns:ostatus="http://ostatus.org/schema/1.0" 
-	  xmlns:statusnet="http://status.net/schema/api/1/" >													>
-EOT;
-
-	$slap = str_replace('<entry>',$namespaces,$slap);
-	
-	// create a magic envelope
-
-	$data      = base64url_encode($slap);
-	$data_type = 'application/atom+xml';
-	$encoding  = 'base64url';
-	$algorithm = 'RSA-SHA256';
-	$keyhash   = base64url_encode(hash('sha256',salmon_key($owner['pubkey'])),true);
-
-	// precomputed base64url encoding of data_type, encoding, algorithm concatenated with periods
-
-	$precomputed = '.YXBwbGljYXRpb24vYXRvbSt4bWw=.YmFzZTY0dXJs.UlNBLVNIQTI1Ng==';
-
-	$signature   = base64url_encode(rsa_sign(str_replace('=','',$data . $precomputed),$owner['prvkey']));
-
-	$signature2  = base64url_encode(rsa_sign($data . $precomputed,$owner['prvkey']));
-
-	$signature3  = base64url_encode(rsa_sign($data,$owner['prvkey']));
-
-	$salmon_tpl = get_markup_template('magicsig.tpl');
-
-	$salmon = replace_macros($salmon_tpl,array(
-		'$data'      => $data,
-		'$encoding'  => $encoding,
-		'$algorithm' => $algorithm,
-		'$keyhash'   => $keyhash,
-		'$signature' => $signature
-	));
-
-	// slap them 
-	post_url($url,$salmon, array(
-		'Content-type: application/magic-envelope+xml',
-		'Content-length: ' . strlen($salmon)
-	));
-
-	$a = get_app();
-	$return_code = $a->get_curl_code();
-
-	// check for success, e.g. 2xx
-
-	if($return_code > 299) {
-
-		logger('slapper: compliant salmon failed. Falling back to status.net hack2');
-
-		// Entirely likely that their salmon implementation is
-		// non-compliant. Let's try once more, this time only signing
-		// the data, without stripping '=' chars
-
-		$salmon = replace_macros($salmon_tpl,array(
-			'$data'      => $data,
-			'$encoding'  => $encoding,
-			'$algorithm' => $algorithm,
-			'$keyhash'   => $keyhash,
-			'$signature' => $signature2
-		));
-
-		// slap them 
-		post_url($url,$salmon, array(
-			'Content-type: application/magic-envelope+xml',
-			'Content-length: ' . strlen($salmon)
-		));
-		$return_code = $a->get_curl_code();
-
-
-		if($return_code > 299) {
-
-			logger('slapper: compliant salmon failed. Falling back to status.net hack3');
-
-			// Entirely likely that their salmon implementation is
-			// non-compliant. Let's try once more, this time only signing
-			// the data, without the precomputed blob 
-
-			$salmon = replace_macros($salmon_tpl,array(
-				'$data'      => $data,
-				'$encoding'  => $encoding,
-				'$algorithm' => $algorithm,
-				'$keyhash'   => $keyhash,
-				'$signature' => $signature3
-			));
-
-			// slap them 
-			post_url($url,$salmon, array(
-				'Content-type: application/magic-envelope+xml',
-				'Content-length: ' . strlen($salmon)
-			));
-			$return_code = $a->get_curl_code();
-		}
-	}
-	logger('slapper returned ' . $return_code); 
-	if(! $return_code)
-		return(-1);
-	if(($return_code == 503) && (stristr($a->get_curl_headers(),'retry-after')))
-		return(-1);
-
-	return ((($return_code >= 200) && ($return_code < 300)) ? 0 : 1);
-}
-
-- 
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