index.php

   1 <?php
   2 error_reporting(E_ALL);
   3
   4 require_once('inc/config.php');
   5
   6 function get_project_info($name)
   7 {
   8         global $conf;
   9
  10         $info = $conf['projects'][$name];
  11         $info['name'] = $name;
  12         $info['description'] = file_get_contents($info['repo'] .'/description');
  13
  14         return $info;
  15 }
  16
  17 /**
  18  * Get details of a commit: tree, parent, author/committer (name, mail, date), message
  19  */
  20 function git_get_commit_info($project, $hash)
  21 {
  22         $info = array();
  23         $info['h'] = $hash;
  24         $info['message_full'] = '';
  25
  26         $output = run_git($project, "git rev-list --header --max-count=1 $hash");
  27         // tree <h>
  28         // parent <h>
  29         // author <name> "<"<mail>">" <stamp> <timezone>
  30         // committer
  31         // <empty>
  32         //     <message>
  33         $pattern = '/^(author|committer) ([^<]+) <([^>]*)> ([0-9]+) (.*)$/';
  34         foreach ($output as $line) {
  35                 if (substr($line, 0, 4) === 'tree') {
  36                         $info['tree'] = substr($line, 5);
  37                 }
  38                 elseif (substr($line, 0, 6) === 'parent') {
  39                         $info['parent']  = substr($line, 7);
  40                 }
  41                 elseif (preg_match($pattern, $line, $matches) > 0) {
  42                         $info[$matches[1] .'_name'] = $matches[2];
  43                         $info[$matches[1] .'_mail'] = $matches[3];
  44                         $info[$matches[1] .'_stamp'] = $matches[4];
  45                         $info[$matches[1] .'_timezone'] = $matches[5];
  46                         $info[$matches[1] .'_utcstamp'] = $matches[4] - ((intval($matches[5]) / 100.0) * 3600);
  47                 }
  48                 elseif (substr($line, 0, 4) === '    ') {
  49                         $info['message_full'] .= substr($line, 4) ."\n";
  50                         if (!isset($info['message'])) {
  51                                 $info['message'] = substr($line, 4, 40);
  52                         }
  53                 }
  54         }
  55
  56         return $info;
  57 }
  58
  59 function git_get_heads($project)
  60 {
  61         $heads = array();
  62
  63         $output = run_git($project, 'git show-ref --heads');
  64         foreach ($output as $line) {
  65                 $fullname = substr($line, 41);
  66                 $name = array_pop(explode('/', $fullname));
  67                 $heads[] = array('h' => substr($line, 0, 40), 'fullname' => "$fullname", 'name' => "$name");
  68         }
  69
  70         return $heads;
  71 }
  72
  73 function git_get_rev_list($project, $max_count = null)
  74 {
  75         $cmd = 'git rev-list HEAD';
  76         if (!is_null($max_count)) {
  77                 $cmd = "git rev-list --max-count=$max_count HEAD";
  78         }
  79
  80         return run_git($project, $cmd);
  81 }
  82
  83 function git_get_tags($project)
  84 {
  85         $tags = array();
  86
  87         $output = run_git($project, 'git show-ref --tags');
  88         foreach ($output as $line) {
  89                 $fullname = substr($line, 41);
  90                 $name = array_pop(explode('/', $fullname));
  91                 $tags[] = array('h' => substr($line, 0, 40), 'fullname' => $fullname, 'name' => $name);
  92         }
  93         return $tags;
  94 }
  95
  96 function git_ls_tree($project, $tree)
  97 {
  98         $entries = array();
  99         $output = run_git($project, "git ls-tree $tree");
 100         // 100644 blob 493b7fc4296d64af45dac64bceac2d9a96c958c1    .gitignore
 101         // 040000 tree 715c78b1011dc58106da2a1af2fe0aa4c829542f    doc
 102         foreach ($output as $line) {
 103                 $parts = preg_split('/\s+/', $line, 4);
 104                 $entries[] = array('name' => $parts[3], 'mode' => $parts[0], 'type' => $parts[1], 'hash' => $parts[2]);
 105         }
 106
 107         return $entries;
 108 }
 109
 110 function makelink($dict)
 111 {
 112         $params = array();
 113         foreach ($dict as $k => $v) {
 114                 $params[] = rawurlencode($k) .'='. str_replace('%2F', '/', rawurlencode($v));
 115         }
 116         if (count($params) > 0) {
 117                 return '?'. htmlentities(join('&', $params));
 118         }
 119         return '';
 120 }
 121
 122 /**
 123  * Executes a git command in the project repo.
 124  * @return array of output lines
 125  */
 126 function run_git($project, $command)
 127 {
 128         global $conf;
 129
 130         $output = array();
 131         $cmd = "GIT_DIR=". $conf['projects'][$project]['repo'] ." $command";
 132         exec($cmd, &$output);
 133         return $output;
 134 }
 135
 136 /**
 137  * Executes a git command in the project repo, sending output directly to the
 138  * client.
 139  */
 140 function run_git_passthru($project, $command)
 141 {
 142         global $conf;
 143
 144         $cmd = "GIT_DIR=". $conf['projects'][$project]['repo'] ." $command";
 145         $result = 0;
 146         passthru($cmd, &$result);
 147         return $result;
 148 }
 149
 150 /**
 151  * Makes sure the given project is valid. If it's not, this function will
 152  * die().
 153  * @return the project
 154  */
 155 function validate_project($project)
 156 {
 157         global $conf;
 158
 159         if (!in_array($project, array_keys($conf['projects']))) {
 160                 die('Invalid project');
 161         }
 162         return $project;
 163 }
 164
 165 /**
 166  * Makes sure the given hash is valid. If it's not, this function will die().
 167  * @return the hash
 168  */
 169 function validate_hash($hash)
 170 {
 171         if (strlen($hash) != 40 || !preg_match('/^[0-9a-z]*$/', $hash)) {
 172                 die('Invalid hash');
 173
 174         }
 175         return $hash;
 176 }
 177
 178 $action = 'index';
 179 $template = '';
 180 $page['title'] = 'ViewGit';
 181
 182 if (isset($_REQUEST['a'])) {
 183         $action = strtolower($_REQUEST['a']);
 184 }
 185 $page['action'] = $action;
 186
 187 if ($action === 'index') {
 188         $template = 'index';
 189         $page['title'] = 'List of projects - ViewGit';
 190
 191         foreach (array_keys($conf['projects']) as $p) {
 192                 $page['projects'][] = get_project_info($p);
 193         }
 194 }
 195 elseif ($action === 'archive') {
 196         $project = validate_project($_REQUEST['p']);
 197         $tree = validate_hash($_REQUEST['h']);
 198         $type = $_REQUEST['t'];
 199
 200         // TODO check that the data passed is really valid
 201         if ($type === 'targz') {
 202                 header("Content-Type: application/x-tar-gz");
 203                 header("Content-Transfer-Encoding: binary");
 204                 header("Content-Disposition: attachment; filename=\"$project-tree-$tree.tar.gz\";");
 205                 /*
 206                 $data = join("\n", run_git($project, "git archive --format=tar $tree |gzip"));
 207                 header("Content-Length: ". strlen($data));
 208                 echo $data;
 209                 */
 210                 run_git_passthru($project, "git archive --format=tar $tree |gzip");
 211         }
 212         elseif ($type === 'zip') {
 213                 header("Content-Type: application/x-zip");
 214                 header("Content-Transfer-Encoding: binary");
 215                 header("Content-Disposition: attachment; filename=\"$project-tree-$tree.zip\";");
 216                 /*
 217                 $data = join("\n", run_git($project, "git archive --format=zip $tree"));
 218                 header("Content-Length: ". strlen($data));
 219                 echo $data;
 220                 */
 221                 run_git_passthru($project, "git archive --format=zip $tree");
 222         }
 223         else {
 224                 die('Invalid archive type requested');
 225         }
 226
 227         die();
 228 }
 229 elseif ($action === 'blob') {
 230         $page['project'] = validate_project($_REQUEST['p']);
 231         $page['hash'] = validate_hash($_REQUEST['h']);
 232
 233         header('Content-type: text/plain');
 234
 235         run_git_passthru($page['project'], "git cat-file blob $page[hash]");
 236         die();
 237 }
 238 elseif ($action === 'commit') {
 239         $template = 'commit';
 240         $page['project'] = validate_project($_REQUEST['p']);
 241         $page['commit_id'] = validate_hash($_REQUEST['h']);
 242
 243         $info = git_get_commit_info($page['project'], $page['commit_id']);
 244
 245         $page['author_name'] = $info['author_name'];
 246         $page['author_mail'] = $info['author_mail'];
 247         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 248         $page['committer_name'] = $info['committer_name'];
 249         $page['committer_mail'] = $info['committer_mail'];
 250         $page['committer_datetime'] = strftime($conf['datetime'], $info['committer_utcstamp']);
 251         $page['tree'] = $info['tree'];
 252         $page['parent'] = $info['parent'];
 253         $page['message'] = $info['message'];
 254         $page['message_full'] = $info['message_full'];
 255
 256 }
 257 elseif ($action === 'summary') {
 258         $template = 'summary';
 259         $page['project'] = validate_project($_REQUEST['p']);
 260         $page['title'] = "$page[project] - Summary - ViewGit";
 261
 262         $revs = git_get_rev_list($page['project'], $conf['summary_shortlog']);
 263         foreach ($revs as $rev) {
 264                 $info = git_get_commit_info($page['project'], $rev);
 265                 $page['shortlog'][] = array(
 266                         'author' => $info['author_name'],
 267                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 268                         'message' => $info['message'],
 269                         'commit_id' => $rev,
 270                         'tree' => $info['tree'],
 271                 );
 272         }
 273
 274         $tags = git_get_tags($page['project']);
 275         $page['tags'] = array();
 276         foreach ($tags as $tag) {
 277                 $info = git_get_commit_info($page['project'], $tag['h']);
 278                 $page['tags'][] = array(
 279                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 280                         'h' => $tag['h'],
 281                         'fullname' => $tag['fullname'],
 282                         'name' => $tag['name'],
 283                 );
 284         }
 285
 286         $heads = git_get_heads($page['project']);
 287         $page['heads'] = array();
 288         foreach ($heads as $h) {
 289                 $info = git_get_commit_info($page['project'], $h['h']);
 290                 $page['heads'][] = array(
 291                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 292                         'h' => $h['h'],
 293                         'fullname' => $h['fullname'],
 294                         'name' => $h['name'],
 295                 );
 296         }
 297 }
 298 elseif ($action === 'tree') {
 299         $template = 'tree';
 300         $page['project'] = validate_project($_REQUEST['p']);
 301         $page['tree'] = validate_hash($_REQUEST['h']);
 302         $page['title'] = "$page[project] - Tree - ViewGit";
 303
 304         $page['entries'] = git_ls_tree($page['project'], $page['tree']);
 305 }
 306 else {
 307         die('Invalid action');
 308 }
 309
 310 require 'templates/header.php';
 311 require "templates/$template.php";
 312 require 'templates/footer.php';