X-Git-Url: http://git.pjr.cc/?p=gwvp-mini.git;a=blobdiff_plain;f=gwvpmini%2Fgwvpmini_gitbackend.php;h=fb577f5336022c01e78d6775b05d397a916125c3;hp=4cb53b844e944b366bb4fa689dae9b7082b4cdd7;hb=cedd983dbbfcea17f6b3f5448009bd3175b37aa5;hpb=eaa989c5b3d6534276be3c32e089d4ec2b45e395

diff --git a/gwvpmini/gwvpmini_gitbackend.php b/gwvpmini/gwvpmini_gitbackend.php
index 4cb53b8..fb577f5 100644
--- a/gwvpmini/gwvpmini_gitbackend.php
+++ b/gwvpmini/gwvpmini_gitbackend.php
@@ -26,16 +26,15 @@ function gwvpmini_gitControlCallMe()
 }
 
 
-function gwvpmini_CreateRepoHooks($repopath, $cmdpath)
+function gwvpmini_CreateRepoHooks($repopath, $cmdpath, $reponame)
 {
 	$fp = fopen("$repopath/hooks/pre-receive", "w");
 	
-	if(!$fp) // error_log("could not create pre-receive hook");
+	if(!$fp) error_log("could not create pre-receive hook");
 	
 	// TODO: think about this one
-	$script = '#!/bin/bash'."\n\n".'DCOMMIT=`cat`'."\n".'START=`echo $DCOMMIT|cut -d " " -f 1`'."\n".'END=`echo $DCOMMIT|cut -d " " -f 2`'."\n".'REF=`echo $DCOMMIT|cut -d " " -f 3`'."\n\n";
-	$script .= "php $cmdpath pre-receive ";
-	$script .= '$START $END $REF'."\n\n";
+	//$script = '#!/bin/bash'."\n\n".'DCOMMIT=`cat`'."\n".'START=`echo $DCOMMIT|cut -d " " -f 1`'."\n".'END=`echo $DCOMMIT|cut -d " " -f 2`'."\n".'REF=`echo $DCOMMIT|cut -d " " -f 3`'."\n\n";
+	$script = "#!/bin/bash\n\nDCOMMIT=".'`cat`'."\n\nphp $cmdpath $reponame \$REMOTE_USER pre-receive \$DCOMMIT\n\n";
 	fwrite($fp, $script);
 	
 	fclose($fp);
@@ -45,12 +44,11 @@ function gwvpmini_CreateRepoHooks($repopath, $cmdpath)
 
 	$fp = fopen("$repopath/hooks/update", "w");
 	
-	if(!$fp) // error_log("could not create update hook");
+	if(!$fp) error_log("could not create update hook");
 	
 	// TODO: think about this one
-	$script = "#!/bin/bash\n\n";
-	$script .= "php $cmdpath update ";
-	$script .= '$1 $2 $3'."\n\n";
+	unset($script);
+	$script = "#!/bin/bash\n\nphp $cmdpath $reponame \$REMOTE_USER update \$1 \$2 \$3\n\n";
 	fwrite($fp, $script);
 	
 	fclose($fp);
@@ -68,7 +66,8 @@ function gwvpmini_gitBackendInterface()
 	header_remove("Set-Cookie");
 	header_remove("Expires");
 	header_remove("X-Powered-By");
-	header_remove("Vary");
+	header_remove("Vary");
+	//header("Content-Encoding: none");
 	
 	
 	$repo_base = gwvpmini_getConfigVal("repodir");
@@ -86,7 +85,7 @@ function gwvpmini_gitBackendInterface()
 		// error_log("FLAP: donut hole");
 	}*/
 	
-
+	error_log("REQUESTINBACKEND: ".print_r($_REQUEST, true));
 	
 	$repo = "";
 	$repoid = false;
@@ -109,11 +108,12 @@ function gwvpmini_gitBackendInterface()
 	
 	// we do an update server cause its weird and i cant figure out when it actually needs to happen
 	chdir("$repo_base/$repo.git");
-	exec("/usr/bin/git update-server-info");
+	// dont believe i have to do this
+	//exec("/usr/bin/git update-server-info");
 	
 	if(!file_exists("$repo_base/$repo.git/hooks/pre-receive") || !file_exists("$repo_base/$repo.git/hooks/update")) {
 		// error_log("WRITING HOOKS");
-		gwvpmini_CreateRepoHooks("$repo_base/$repo.git", $cmd_line_tool);
+		gwvpmini_CreateRepoHooks("$repo_base/$repo.git", $cmd_line_tool, $repo);
 	}
 	
 	
@@ -128,7 +128,7 @@ function gwvpmini_gitBackendInterface()
 			$write = true;
 		}
 	}
-	
+	if(preg_match("/.*git-receive-pack$/", $_REQUEST["q"])) $write = true;
 	//$write = true;
 	// THIS MAY CAUSE ISSUES LATER ON but we do it cause the git client ignores our 403 when it uses git-receive-pack after an auth
 	// no, this isnt a solution cause auth'd read attempts will come up as writes...
@@ -182,8 +182,11 @@ function gwvpmini_gitBackendInterface()
 	}
 	
 	// if its a write, we check (before and after) the branch/tag info to see if they were updated
-	//if($write) {
-	//}
+	if($write) {
+		error_log("REQUESTINBACKEND: processed as write");
+	} else {
+		error_log("REQUESTINBACKEND: processed as read");
+	}
 	
 	gwvpmini_callGitBackend($person, $repo);
 	
@@ -219,6 +222,8 @@ function gwvpmini_canManageRepo($userid, $repoid)
 	return false;
 }
 
+
+// TODO: this whole bit needs a re-write
 function gwvpmini_callGitBackend($username, $repo)
 {
 	// this is where things become a nightmare
@@ -279,12 +284,11 @@ function gwvpmini_callGitBackend($username, $repo)
 		if(isset($_SERVER["CONTENT_LENGTH"])) { 
 			$procenv["CONTENT_LENGTH"] = $_SERVER["CONTENT_LENGTH"];
 		}
+
+		$headers = getallheaders();
 		
-		// error_log("path trans'd is /$repo_base/$repo.git/$euri from $ruri with ".$_REQUEST["q"]." $strrem");
-		
-		
+		error_log("path trans'd is /$repo_base/$repo.git/$euri from $ruri with ".$_REQUEST["q"]." $strrem pre is ".print_r($_REQUEST,true)." and foff ".print_r($headers, true));
 		
-
 		$pwd = "/$repo_base/";
 		
 		$proc = proc_open("/usr/lib/git-core/git-http-backend", array(array("pipe","rb"),array("pipe","wb"),array("file","/tmp/err", "a")), $pipes, $pwd, $procenv);
@@ -320,11 +324,31 @@ function gwvpmini_callGitBackend($username, $repo)
 		
 		$stlimit = 0;
 		$fp = fopen("/tmp/gitup.".rand(0,4000000), "w");
+		$from_client_data = "";
 		// i was going to use stream_select, but i feel this works better like this
 		while($continue) {
 			// do client
+			
+			// lets start again....
+				
 			if(!feof($fh)) {
-				$from_client_data = fread($fh,8192);
+				if(isset($headers["Content-Length"])) {
+					$cl = $headers["Content-Length"];
+					while(strlen($from_client_data) < $cl) {
+						error_log("re-read ".strlen($from_client_data));
+						$from_client_data .= fread($fh, $cl);
+					}
+				} else 	$from_client_data = fread($fh,8192);
+				
+				// TODO: BIG TODO: must rewrite this bit. its ugly as sin, it works, but it probably shouldnt.
+				
+				if(isset($headers["Content-Encoding"])) {
+					if($headers["Content-Encoding"] == "gzip") {
+						//error_log("DAM YOU GIT CLIENT and your retarded gzip encoding");
+						$from_client_data = gzinflate(substr($from_client_data, 10));
+						//$from_client_data = gzdecode($from_client_data);
+					}
+				}
 				if($from_client_data !== false) {
 					fwrite($pipes[0], $from_client_data);
 					fwrite($fp, $from_client_data);
@@ -333,11 +357,14 @@ function gwvpmini_callGitBackend($username, $repo)
 				//fwrite($fl, $from_client_data);
 				$client_len = strlen($from_client_data);
 			} else {
-				// error_log("client end");
+				error_log("client end");
 				$client_len = 0;
 				//$continue = false;
 			}
 			
+				
+			
+
 			// do cgi
 			// sometimes, we get a \r\n from the cgi, i do not know why she swallowed the fly,
 			// but i do know that the fgets for the headers above should have comsued that
@@ -355,15 +382,16 @@ function gwvpmini_callGitBackend($username, $repo)
 						// TODO: find out why this happens
 						$from_cgi_data = preg_replace("/^\r\n/", "", $from_cgi_data_t);
 						if(strlen($from_cgi_data)!=strlen($from_cgi_data_t)) {
-							// error_log("MOOOKS - we did trunc");
+							error_log("MOOOKS - we did trunc");
 						} else {
-							// error_log("MOOOKS - we did not trunc");
+							error_log("MOOOKS - we did not trunc");
 						}
 						$firstline = false;
 					}
 				}
 				
 				if($from_cgi_data !== false) {
+					error_log("send to client");
 					echo $from_cgi_data;
 					flush();
 				}
@@ -373,18 +401,20 @@ function gwvpmini_callGitBackend($username, $repo)
 				$cgi_len = 0;
 			}
 			
+			flush();
+			
 			if(feof($pipes[1])) $continue = false;
 			else {
 				if($client_len == 0 && $cgi_len == 0) {
 					usleep(200000);
-					// error_log("sleep tick");
+					error_log("sleep tick");
 					$stlimit++;
-					if($stlimit > 2) $continue = false;
+					if($stlimit > 5000) $continue = false;
 				} else {
 					$stlimit = 0;
-					// error_log("sizes: $client_len, $cgi_len");
+					error_log("sizes: $client_len, $cgi_len");
 					if($cgi_len > 0) {
-						// error_log("from cgi: \"$from_cgi_data\"");
+						//error_log("from cgi: \"$from_cgi_data\"");
 					}
 				}
 			}
@@ -392,10 +422,15 @@ function gwvpmini_callGitBackend($username, $repo)
 		}
 		
 		
+		flush();
+		error_log("and im done...");
+		
 		//fclose($fl);
 		fclose($fh);
 		fclose($pipes[1]);
 		fclose($pipes[0]);	
+		
+		exit(0);
 }
 
 
@@ -412,21 +447,153 @@ function gwvpmini_repoExists($name)
 // 0 - anyone can clone/read, only owner can write
 // 1 - noone can clone/read, repo is visible (i.e. name), only owner can read/write repo
 // 2 - only owner can see anything
-function gwvpmini_createGitRepo($name, $ownerid, $desc)
+function gwvpmini_createGitRepo($name, $ownerid, $desc, $defperms, $clonefrom, $isremoteclone)
 {
+	global $cmd_line_tool;
+	
 	$repo_base = gwvpmini_getConfigVal("repodir");
 	
+	if($clonefrom !== false) {
+		error_log("how did i end up in clonefrom? $clonefrom");
+		if(!$isremoteclone) {
+			exec("/usr/bin/git clone --bare $repo_base/$clonefrom.git $repo_base/$name.git >> /tmp/gitlog 2>&1");
+			gwvpmini_AddRepo($name, $desc, $ownerid, $defperms, $clonefrom);
+		} else {
+			// we do this from an outside call in the background
+			$cmd = "/usr/bin/php $cmd_line_tool $clonefrom $name backgroundclone >> /tmp/gitlog 2>&1 &";
+			error_log("cmd called as $cmd");
+			exec($cmd);
+			gwvpmini_AddRepo($name, $desc, $ownerid, $defperms, $clonefrom);
+			$rn = gwvpmini_getRepo(null, $name, null);
+			$rid = $rn["id"];
+			gwvpmini_SetRepoCloning($rid);
+			gwvpmini_SendMessageByDb("info", "Background clone initiated for $name ($rid) from $clonefrom... your repo will be available once the background clone is finished", $ownerid);
+			return false;
+		}
+	} else {
+	
 	// phew, this works, but i tell you this - bundles arent quite as nice as they should be
 	// error_log("would create $repo_base/$name.git");
-	exec("/usr/bin/git init $repo_base/$name.git --bare > /tmp/gitlog 2>&1");
-	chdir("$repo_base/$name.git");
-	exec("/usr/bin/git update-server-info");
-
-	// gwvpmini_AddRepo($reponame, $repodesc, $repoowner, $defaultperms = 0)
-	gwvpmini_AddRepo($name, $desc, $ownerid);
+		exec("/usr/bin/git init $repo_base/$name.git --bare >> /tmp/gitlog 2>&1");
+		chdir("$repo_base/$name.git");
+		exec("/usr/bin/git update-server-info");
+	
+		// gwvpmini_AddRepo($reponame, $repodesc, $repoowner, $defaultperms = 0)
+		gwvpmini_AddRepo($name, $desc, $ownerid, $defperms, $clonefrom);
+	}
 	
 	return true;
 }
 
-
+function gzdecode($data,&$filename='',&$error='',$maxlength=null)
+{
+	$len = strlen($data);
+	if ($len < 18 || strcmp(substr($data,0,2),"\x1f\x8b")) {
+		$error = "Not in GZIP format.";
+		return null;  // Not GZIP format (See RFC 1952)
+	}
+	$method = ord(substr($data,2,1));  // Compression method
+	$flags  = ord(substr($data,3,1));  // Flags
+	if ($flags & 31 != $flags) {
+		$error = "Reserved bits not allowed.";
+		return null;
+	}
+	// NOTE: $mtime may be negative (PHP integer limitations)
+	$mtime = unpack("V", substr($data,4,4));
+	$mtime = $mtime[1];
+	$xfl   = substr($data,8,1);
+	$os    = substr($data,8,1);
+	$headerlen = 10;
+	$extralen  = 0;
+	$extra     = "";
+	if ($flags & 4) {
+		// 2-byte length prefixed EXTRA data in header
+		if ($len - $headerlen - 2 < 8) {
+			return false;  // invalid
+		}
+		$extralen = unpack("v",substr($data,8,2));
+		$extralen = $extralen[1];
+		if ($len - $headerlen - 2 - $extralen < 8) {
+			return false;  // invalid
+		}
+		$extra = substr($data,10,$extralen);
+		$headerlen += 2 + $extralen;
+	}
+	$filenamelen = 0;
+	$filename = "";
+	if ($flags & 8) {
+		// C-style string
+		if ($len - $headerlen - 1 < 8) {
+			return false; // invalid
+		}
+		$filenamelen = strpos(substr($data,$headerlen),chr(0));
+		if ($filenamelen === false || $len - $headerlen - $filenamelen - 1 < 8) {
+			return false; // invalid
+		}
+		$filename = substr($data,$headerlen,$filenamelen);
+		$headerlen += $filenamelen + 1;
+	}
+	$commentlen = 0;
+	$comment = "";
+	if ($flags & 16) {
+		// C-style string COMMENT data in header
+		if ($len - $headerlen - 1 < 8) {
+			return false;    // invalid
+		}
+		$commentlen = strpos(substr($data,$headerlen),chr(0));
+		if ($commentlen === false || $len - $headerlen - $commentlen - 1 < 8) {
+			return false;    // Invalid header format
+		}
+		$comment = substr($data,$headerlen,$commentlen);
+		$headerlen += $commentlen + 1;
+	}
+	$headercrc = "";
+	if ($flags & 2) {
+		// 2-bytes (lowest order) of CRC32 on header present
+		if ($len - $headerlen - 2 < 8) {
+			return false;    // invalid
+		}
+		$calccrc = crc32(substr($data,0,$headerlen)) & 0xffff;
+		$headercrc = unpack("v", substr($data,$headerlen,2));
+		$headercrc = $headercrc[1];
+		if ($headercrc != $calccrc) {
+			$error = "Header checksum failed.";
+			return false;    // Bad header CRC
+		}
+		$headerlen += 2;
+	}
+	// GZIP FOOTER
+	$datacrc = unpack("V",substr($data,-8,4));
+	$datacrc = sprintf('%u',$datacrc[1] & 0xFFFFFFFF);
+	$isize = unpack("V",substr($data,-4));
+	$isize = $isize[1];
+	// decompression:
+	$bodylen = $len-$headerlen-8;
+	if ($bodylen < 1) {
+		// IMPLEMENTATION BUG!
+		return null;
+	}
+	$body = substr($data,$headerlen,$bodylen);
+	$data = "";
+	if ($bodylen > 0) {
+		switch ($method) {
+			case 8:
+				// Currently the only supported compression method:
+				$data = gzinflate($body,$maxlength);
+				break;
+			default:
+				$error = "Unknown compression method.";
+				return false;
+		}
+	}  // zero-byte body content is allowed
+	// Verifiy CRC32
+	$crc   = sprintf("%u",crc32($data));
+	$crcOK = $crc == $datacrc;
+	$lenOK = $isize == strlen($data);
+	if (!$lenOK || !$crcOK) {
+		$error = ( $lenOK ? '' : 'Length check FAILED. ') . ( $crcOK ? '' : 'Checksum FAILED.');
+		return false;
+	}
+	return $data;
+}
 ?>
\ No newline at end of file