index.php

   1 <?php
   2 /** @file
   3  * The main "controller" file of ViewGit.
   4  *
   5  * All requests come to this file. You can think of it as the controller in the
   6  * Model-View-Controller pattern. It reads config, processes user input,
   7  * fetches required data using git commandline, and finally passes the data to
   8  * templates to be shown to the user.
   9  */
  10 error_reporting(E_ALL);
  11
  12 require_once('inc/config.php');
  13 require_once('inc/functions.php');
  14
  15 if (isset($conf['projects_glob'])) {
  16         foreach ($conf['projects_glob'] as $glob) {
  17                 foreach (glob($glob) as $path) {
  18                         // Get the last part of the path before .git
  19                         $name = preg_replace(array('#/?\.git$#', '#^.*/#'), array('', ''), $path);
  20
  21                         // Workaround against name collisions; proj, proj1, proj2, ...
  22                         $i = '';
  23                         while (in_array($name . $i, array_keys($conf['projects']))) {
  24                                 @$i++;
  25                         }
  26                         $name = $name . $i;
  27                         $conf['projects'][$name] = array('repo' => $path);
  28                 }
  29         }
  30 }
  31
  32 $action = 'index';
  33 $template = 'index';
  34 $page['title'] = 'ViewGit';
  35
  36 if (isset($_REQUEST['a'])) {
  37         $action = strtolower($_REQUEST['a']);
  38 }
  39 $page['action'] = $action;
  40
  41 /*
  42  * index - list of projects
  43  */
  44 if ($action === 'index') {
  45         $template = 'index';
  46         $page['title'] = 'List of projects - ViewGit';
  47
  48         foreach (array_keys($conf['projects']) as $p) {
  49                 $page['projects'][] = get_project_info($p);
  50         }
  51 }
  52
  53 /*
  54  * archive - send a tree as an archive to client
  55  * @param p project
  56  * @param h tree hash
  57  * @param t type, "targz" or "zip"
  58  * @param n OPTIONAL name suggestion
  59  */
  60 elseif ($action === 'archive') {
  61         $project = validate_project($_REQUEST['p']);
  62         $tree = validate_hash($_REQUEST['h']);
  63         $type = $_REQUEST['t'];
  64
  65         $basename = "$project-tree-". substr($tree, 0, 7);
  66         if (isset($_REQUEST['n'])) {
  67                 $basename = "$project-$_REQUEST[n]-". substr($tree, 0, 6);
  68         }
  69
  70         if ($type === 'targz') {
  71                 header("Content-Type: application/x-tar-gz");
  72                 header("Content-Transfer-Encoding: binary");
  73                 header("Content-Disposition: attachment; filename=\"$basename.tar.gz\";");
  74                 run_git_passthru($project, "git archive --format=tar $tree |gzip");
  75         }
  76         elseif ($type === 'zip') {
  77                 header("Content-Type: application/x-zip");
  78                 header("Content-Transfer-Encoding: binary");
  79                 header("Content-Disposition: attachment; filename=\"$basename.zip\";");
  80                 run_git_passthru($project, "git archive --format=zip $tree");
  81         }
  82         else {
  83                 die('Invalid archive type requested');
  84         }
  85
  86         die();
  87 }
  88
  89 /*
  90  * blob - send a blob to browser with filename suggestion
  91  * @param p project
  92  * @param h blob hash
  93  * @param n filename
  94  */
  95 elseif ($action === 'blob') {
  96         $project = validate_project($_REQUEST['p']);
  97         $hash = validate_hash($_REQUEST['h']);
  98         $name = $_REQUEST['n'];
  99
 100         header('Content-type: application/octet-stream');
 101         header("Content-Disposition: attachment; filename=$name"); // FIXME needs quotation
 102
 103         run_git_passthru($project, "git cat-file blob $hash");
 104         die();
 105 }
 106
 107 /*
 108  * co - git checkout. These requests come from mod_rewrite, see the .htaccess file.
 109  * @param p project
 110  * @param r path
 111  */
 112 elseif ($action === 'co') {
 113         if (!$conf['allow_checkout']) { die('Checkout not allowed'); }
 114
 115         // For debugging
 116         debug("Project: $_REQUEST[p] Request: $_REQUEST[r]");
 117
 118         // eg. info/refs, HEAD
 119         $p = validate_project($_REQUEST['p']); // project
 120         $r = $_REQUEST['r']; // path
 121
 122         $gitdir = $conf['projects'][$p]['repo'];
 123         $filename = $gitdir .'/'. $r;
 124
 125         // make sure the request is legit (no reading of other files besides those under git projects)
 126         if ($r === 'HEAD' || $r === 'info/refs' || preg_match('!^objects/info/(packs|http-alternates|alternates)$!', $r) > 0 || preg_match('!^objects/[0-9a-f]{2}/[0-9a-f]{38}$!', $r) > 0) {
 127                 if (file_exists($filename)) {
 128                         debug('OK, sending');
 129                         readfile($filename);
 130                 } else {
 131                         debug('Not found');
 132                         header('HTTP/1.0 404 Not Found');
 133                 }
 134         } else {
 135                 debug("Denied");
 136         }
 137
 138         die();
 139 }
 140
 141 /*
 142  * commit - view commit information
 143  * @param p project
 144  * @param h commit hash
 145  */
 146 elseif ($action === 'commit') {
 147         $template = 'commit';
 148         $page['project'] = validate_project($_REQUEST['p']);
 149         $page['title'] = "$page[project] - Commit - ViewGit";
 150         $page['commit_id'] = validate_hash($_REQUEST['h']);
 151
 152         $info = git_get_commit_info($page['project'], $page['commit_id']);
 153
 154         $page['author_name'] = $info['author_name'];
 155         $page['author_mail'] = $info['author_mail'];
 156         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 157         $page['author_datetime_local'] = strftime($conf['datetime'], $info['author_stamp']) .' '. $info['author_timezone'];
 158         $page['committer_name'] = $info['committer_name'];
 159         $page['committer_mail'] = $info['committer_mail'];
 160         $page['committer_datetime'] = strftime($conf['datetime'], $info['committer_utcstamp']);
 161         $page['committer_datetime_local'] = strftime($conf['datetime'], $info['committer_stamp']) .' '. $info['committer_timezone'];
 162         $page['tree_id'] = $info['tree'];
 163         $page['parents'] = $info['parents'];
 164         $page['message'] = $info['message'];
 165         $page['message_firstline'] = $info['message_firstline'];
 166         $page['message_full'] = $info['message_full'];
 167
 168 }
 169
 170 /*
 171  * commitdiff - view diff of a commit
 172  * @param p project
 173  * @param h commit hash
 174  */
 175 elseif ($action === 'commitdiff') {
 176         $template = 'commitdiff';
 177         $page['project'] = validate_project($_REQUEST['p']);
 178         $page['title'] = "$page[project] - Commitdiff - ViewGit";
 179         $hash = validate_hash($_REQUEST['h']);
 180         $page['commit_id'] = $hash;
 181
 182         $info = git_get_commit_info($page['project'], $hash);
 183
 184         $page['tree_id'] = $info['tree'];
 185
 186         $page['message'] = $info['message'];
 187         $page['message_firstline'] = $info['message_firstline'];
 188         $page['message_full'] = $info['message_full'];
 189         $page['author_name'] = $info['author_name'];
 190         $page['author_mail'] = $info['author_mail'];
 191         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 192
 193         $text = join("\n", run_git($page['project'], "git diff $hash^..$hash"));
 194         list($page['files'], $page['diffdata']) = format_diff($text);
 195         //$page['diffdata'] = format_diff($text);
 196 }
 197
 198 /*
 199  * rss-log - RSS feed of project changes
 200  * @param p project
 201  */
 202 elseif ($action === 'rss-log') {
 203         $page['project'] = validate_project($_REQUEST['p']);
 204
 205         $ext_url = 'http://'. $_SERVER['HTTP_HOST'] . dirname($_SERVER['SCRIPT_NAME']) .'/';
 206
 207         $page['rss_title'] = "Log for $page[project]";
 208         $page['rss_link'] = $ext_url . makelink(array('a' => 'summary', 'p' => $page['project']));
 209         $page['rss_description'] = "Git log for project $page[project], generated by ViewGit.";
 210         $page['rss_pubDate'] = rss_pubdate(time());
 211         $page['rss_ttl'] = $conf['rss_ttl'];
 212
 213         $page['rss_items'] = array();
 214
 215         $diffstat = strstr($conf['rss_item_description'], '{DIFFSTAT}');
 216
 217         $revs = git_get_rev_list($page['project'], $conf['rss_max_items']);
 218         foreach ($revs as $rev) {
 219                 $info = git_get_commit_info($page['project'], $rev);
 220                 $link = $ext_url . makelink(array('a' => 'commit', 'p' => $page['project'], 'h' => $rev));
 221                 if ($diffstat) {
 222                         $info['diffstat'] = git_diffstat($page['project'], $rev);
 223                 }
 224
 225                 $page['rss_items'][] = array(
 226                         'title' => rss_item_format($conf['rss_item_title'], $info),
 227                         'guid' => $link,
 228                         'link' => $link,
 229                         'description' => rss_item_format($conf['rss_item_description'], $info),
 230                         'pubdate' => rss_pubdate($info['author_stamp']),
 231                 );
 232         }
 233
 234         require('templates/rss.php');
 235         die();
 236 }
 237
 238 /*
 239  * shortlog - project shortlog entries
 240  * @param p project
 241  * @param h OPTIONAL commit id to start showing log from
 242  */
 243 elseif ($action === 'shortlog') {
 244         $template = 'shortlog';
 245         $page['project'] = validate_project($_REQUEST['p']);
 246         $page['title'] = "$page[project] - Shortlog - ViewGit";
 247         if (isset($_REQUEST['h'])) {
 248                 $page['ref'] = validate_hash($_REQUEST['h']);
 249         } else {
 250                 $page['ref'] = 'HEAD';
 251         }
 252
 253         $info = git_get_commit_info($page['project'], $page['ref']);
 254         $page['commit_id'] = $info['h'];
 255         $page['tree_id'] = $info['tree'];
 256
 257         $page['shortlog'] = handle_shortlog($page['project'], $page['ref']);
 258 }
 259 elseif ($action === 'summary') {
 260         $template = 'summary';
 261         $page['project'] = validate_project($_REQUEST['p']);
 262         $page['title'] = "$page[project] - Summary - ViewGit";
 263
 264         $info = git_get_commit_info($page['project']);
 265         $page['commit_id'] = $info['h'];
 266         $page['tree_id'] = $info['tree'];
 267
 268         $page['shortlog'] = handle_shortlog($page['project']);
 269
 270         $page['tags'] = handle_tags($page['project'], $conf['summary_tags']);
 271
 272         $heads = git_get_heads($page['project']);
 273         $page['heads'] = array();
 274         foreach ($heads as $h) {
 275                 $info = git_get_commit_info($page['project'], $h['h']);
 276                 $page['heads'][] = array(
 277                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 278                         'h' => $h['h'],
 279                         'fullname' => $h['fullname'],
 280                         'name' => $h['name'],
 281                 );
 282         }
 283 }
 284 elseif ($action === 'tags') {
 285         $template = 'tags';
 286         $page['project'] = validate_project($_REQUEST['p']);
 287         $page['title'] = "$page[project] - Tags - ViewGit";
 288
 289         $info = git_get_commit_info($page['project']);
 290         $page['commit_id'] = $info['h'];
 291         $page['tree_id'] = $info['tree'];
 292
 293         $page['tags'] = handle_tags($page['project']);
 294 }
 295 /*
 296  * Shows a tree, with list of directories/files, links to them and download
 297  * links to archives.
 298  *
 299  * @param p project
 300  * @param h tree hash
 301  * @param hb OPTIONAL base commit (trees can be part of multiple commits, this
 302  * one denotes which commit the user navigated from)
 303  * @param f OPTIONAL path the user has followed to view this tree
 304  */
 305 elseif ($action === 'tree') {
 306         $template = 'tree';
 307         $page['project'] = validate_project($_REQUEST['p']);
 308         if (isset($_REQUEST['h'])) {
 309                 $page['tree_id'] = validate_hash($_REQUEST['h']);
 310         }
 311         /*
 312         else {
 313                 // TODO walk the tree
 314                 $page['tree_id'] = 'HEAD';
 315         }
 316         */
 317         $page['title'] = "$page[project] - Tree - ViewGit";
 318
 319         // 'hb' optionally contains the commit_id this tree is related to
 320         if (isset($_REQUEST['hb'])) {
 321                 $page['commit_id'] = validate_hash($_REQUEST['hb']);
 322         }
 323         else {
 324                 // for the header
 325                 $info = git_get_commit_info($page['project']);
 326                 $page['commit_id'] = $info['h'];
 327         }
 328
 329         $page['path'] = '';
 330         if (isset($_REQUEST['f'])) {
 331                 $page['path'] = $_REQUEST['f']; // TODO validate?
 332         }
 333
 334         // get path info for the header
 335         $page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], $page['path']);
 336         if (!isset($page['tree_id'])) {
 337                 // Take the last hash from the tree
 338                 if (count($page['pathinfo']) > 0) {
 339                         $page['tree_id'] = $page['pathinfo'][count($page['pathinfo']) - 1]['hash'];
 340                 } else {
 341                         $page['tree_id'] = 'HEAD';
 342                 }
 343         }
 344
 345         $page['entries'] = git_ls_tree($page['project'], $page['tree_id']);
 346 }
 347 /*
 348  * View a blob as inline, embedded on the page.
 349  * @param p project
 350  * @param h blob hash
 351  * @param hb OPTIONAL base commit
 352  */
 353 elseif ($action === 'viewblob') {
 354         $template = 'blob';
 355         $page['project'] = validate_project($_REQUEST['p']);
 356         $page['hash'] = validate_hash($_REQUEST['h']);
 357         $page['title'] = "$page[project] - Blob - ViewGit";
 358         if (isset($_REQUEST['hb'])) {
 359                 $page['commit_id'] = validate_hash($_REQUEST['hb']);
 360         }
 361         else {
 362                 $page['commit_id'] = 'HEAD';
 363         }
 364
 365         $page['path'] = '';
 366         if (isset($_REQUEST['f'])) {
 367                 $page['path'] = $_REQUEST['f']; // TODO validate?
 368         }
 369
 370         // For the header's pagenav
 371         $info = git_get_commit_info($page['project'], $page['commit_id']);
 372         $page['commit_id'] = $info['h'];
 373         $page['tree_id'] = $info['tree'];
 374
 375         $page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], $page['path']);
 376
 377         $page['data'] = join("\n", run_git($page['project'], "git cat-file blob $page[hash]"));
 378
 379         // GeSHi support
 380         if ($conf['geshi'] && strpos($page['path'], '.')) {
 381                 error_reporting(E_ALL ^ E_NOTICE);
 382                 require_once($conf['geshi_path']);
 383                 $ext = array_pop(explode('.', $page['path']));
 384                 $lang = Geshi::get_language_name_from_extension($ext);
 385                 $geshi =& new Geshi($page['data'], $lang);
 386                 if (is_int($conf['geshi_line_numbers'])) {
 387                         if ($conf['geshi_line_numbers'] == 0) {
 388                                 $geshi->enable_line_numbers(GESHI_NORMAL_LINE_NUMBERS);
 389                         }
 390                         else {
 391                                 $geshi->enable_line_numbers(GESHI_FANCY_LINE_NUMBERS, $conf['geshi_line_numbers']);
 392                         }
 393                 }
 394                 $page['html_data'] = $geshi->parse_code();
 395                 error_reporting(E_ALL);
 396         }
 397 }
 398 else {
 399         die('Invalid action');
 400 }
 401
 402 require 'templates/header.php';
 403 require "templates/$template.php";
 404 require 'templates/footer.php';