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 $action = 'index';
  16 $template = 'index';
  17 $page['title'] = 'ViewGit';
  18
  19 if (isset($_REQUEST['a'])) {
  20         $action = strtolower($_REQUEST['a']);
  21 }
  22 $page['action'] = $action;
  23
  24 if ($action === 'index') {
  25         $template = 'index';
  26         $page['title'] = 'List of projects - ViewGit';
  27
  28         foreach (array_keys($conf['projects']) as $p) {
  29                 $page['projects'][] = get_project_info($p);
  30         }
  31 }
  32 elseif ($action === 'archive') {
  33         $project = validate_project($_REQUEST['p']);
  34         $tree = validate_hash($_REQUEST['h']);
  35         $type = $_REQUEST['t'];
  36
  37         $basename = "$project-tree-". substr($tree, 0, 7);
  38         if (isset($_REQUEST['n'])) {
  39                 $basename = "$project-$_REQUEST[n]-". substr($tree, 0, 6);
  40         }
  41
  42         if ($type === 'targz') {
  43                 header("Content-Type: application/x-tar-gz");
  44                 header("Content-Transfer-Encoding: binary");
  45                 header("Content-Disposition: attachment; filename=\"$basename.tar.gz\";");
  46                 run_git_passthru($project, "git archive --format=tar $tree |gzip");
  47         }
  48         elseif ($type === 'zip') {
  49                 header("Content-Type: application/x-zip");
  50                 header("Content-Transfer-Encoding: binary");
  51                 header("Content-Disposition: attachment; filename=\"$basename.zip\";");
  52                 run_git_passthru($project, "git archive --format=zip $tree");
  53         }
  54         else {
  55                 die('Invalid archive type requested');
  56         }
  57
  58         die();
  59 }
  60 // blob: send a blob to browser with filename suggestion
  61 elseif ($action === 'blob') {
  62         $project = validate_project($_REQUEST['p']);
  63         $hash = validate_hash($_REQUEST['h']);
  64         $name = $_REQUEST['n'];
  65
  66         header('Content-type: application/octet-stream');
  67         header("Content-Disposition: attachment; filename=$name"); // FIXME needs quotation
  68
  69         run_git_passthru($project, "git cat-file blob $hash");
  70         die();
  71 }
  72 /**
  73  * git checkout.
  74  */
  75 elseif ($action === 'co') {
  76         if (!$conf['allow_checkout']) { die('Checkout not allowed'); }
  77
  78         // For debugging
  79         debug("Project: $_REQUEST[p] Request: $_REQUEST[r]");
  80
  81         // eg. info/refs, HEAD
  82         $p = validate_project($_REQUEST['p']); // project
  83         $r = $_REQUEST['r']; // path
  84
  85         $gitdir = $conf['projects'][$p]['repo'];
  86         $filename = $gitdir .'/'. $r;
  87
  88         // make sure the request is legit (no reading of other files besides those under git projects)
  89         if ($r === 'HEAD' || $r === 'info/refs' || preg_match('!^objects/info/(packs|http-alternates|alternates)$!', $r) > 0 || preg_match('!^objects/[0-9a-f]{2}/[0-9a-f]{38}$!', $r) > 0) {
  90                 if (file_exists($filename)) {
  91                         debug('OK, sending');
  92                         readfile($filename);
  93                 } else {
  94                         debug('Not found');
  95                         header('404');
  96                 }
  97         } else {
  98                 debug("Denied");
  99         }
 100
 101         die();
 102 }
 103 elseif ($action === 'commit') {
 104         $template = 'commit';
 105         $page['project'] = validate_project($_REQUEST['p']);
 106         $page['title'] = "$page[project] - Commit - ViewGit";
 107         $page['commit_id'] = validate_hash($_REQUEST['h']);
 108
 109         $info = git_get_commit_info($page['project'], $page['commit_id']);
 110
 111         $page['author_name'] = $info['author_name'];
 112         $page['author_mail'] = $info['author_mail'];
 113         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 114         $page['author_datetime_local'] = strftime($conf['datetime'], $info['author_stamp']) .' '. $info['author_timezone'];
 115         $page['committer_name'] = $info['committer_name'];
 116         $page['committer_mail'] = $info['committer_mail'];
 117         $page['committer_datetime'] = strftime($conf['datetime'], $info['committer_utcstamp']);
 118         $page['committer_datetime_local'] = strftime($conf['datetime'], $info['committer_stamp']) .' '. $info['committer_timezone'];
 119         $page['tree_id'] = $info['tree'];
 120         $page['parents'] = $info['parents'];
 121         $page['message'] = $info['message'];
 122         $page['message_firstline'] = $info['message_firstline'];
 123         $page['message_full'] = $info['message_full'];
 124
 125 }
 126 elseif ($action === 'commitdiff') {
 127         $template = 'commitdiff';
 128         $page['project'] = validate_project($_REQUEST['p']);
 129         $page['title'] = "$page[project] - Commitdiff - ViewGit";
 130         $hash = validate_hash($_REQUEST['h']);
 131         $page['commit_id'] = $hash;
 132
 133         $info = git_get_commit_info($page['project'], $hash);
 134
 135         $page['tree_id'] = $info['tree'];
 136
 137         $page['message'] = $info['message'];
 138         $page['message_firstline'] = $info['message_firstline'];
 139         $page['message_full'] = $info['message_full'];
 140         $page['author_name'] = $info['author_name'];
 141         $page['author_mail'] = $info['author_mail'];
 142         $page['author_datetime'] = strftime($conf['datetime'], $info['author_utcstamp']);
 143
 144         $text = join("\n", run_git($page['project'], "git diff $hash^..$hash"));
 145         list($page['files'], $page['diffdata']) = format_diff($text);
 146         //$page['diffdata'] = format_diff($text);
 147 }
 148 elseif ($action === 'rss-log') {
 149         $page['project'] = validate_project($_REQUEST['p']);
 150
 151         $ext_url = 'http://'. $_SERVER['HTTP_HOST'] . dirname($_SERVER['SCRIPT_NAME']) .'/';
 152
 153         $page['rss_title'] = "Log for $page[project]";
 154         $page['rss_link'] = $ext_url . makelink(array('a' => 'summary', 'p' => $page['project']));
 155         $page['rss_description'] = "Git log for project $page[project], generated by ViewGit.";
 156         $page['rss_pubDate'] = rss_pubdate(time());
 157         $page['rss_ttl'] = $conf['rss_ttl'];
 158
 159         $page['rss_items'] = array();
 160
 161         $revs = git_get_rev_list($page['project'], $conf['rss_max_items']);
 162         foreach ($revs as $rev) {
 163                 $info = git_get_commit_info($page['project'], $rev);
 164                 $link = $ext_url . makelink(array('a' => 'commit', 'p' => $page['project'], 'h' => $rev));
 165
 166                 $page['rss_items'][] = array(
 167                         'title' => rss_item_format($conf['rss_item_title'], $info),
 168                         'guid' => $link,
 169                         'link' => $link,
 170                         'description' => rss_item_format($conf['rss_item_description'], $info),
 171                         'pubdate' => rss_pubdate($info['author_stamp']),
 172                 );
 173         }
 174
 175         require('templates/rss.php');
 176         die();
 177 }
 178 elseif ($action === 'shortlog') {
 179         $template = 'shortlog';
 180         $page['project'] = validate_project($_REQUEST['p']);
 181         $page['title'] = "$page[project] - Shortlog - ViewGit";
 182         if (isset($_REQUEST['h'])) {
 183                 $page['ref'] = validate_hash($_REQUEST['h']);
 184         } else {
 185                 $page['ref'] = 'HEAD';
 186         }
 187
 188         $info = git_get_commit_info($page['project'], $page['ref']);
 189         $page['commit_id'] = $info['h'];
 190         $page['tree_id'] = $info['tree'];
 191
 192         // TODO merge the logic with 'summary' below
 193         $revs = git_get_rev_list($page['project'], $conf['summary_shortlog'], $page['ref']); // TODO pass first rev as parameter
 194         foreach ($revs as $rev) {
 195                 $info = git_get_commit_info($page['project'], $rev);
 196                 $page['shortlog'][] = array(
 197                         'author' => $info['author_name'],
 198                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 199                         'message' => $info['message'],
 200                         'commit_id' => $rev,
 201                         'tree' => $info['tree'],
 202                 );
 203         }
 204 }
 205 elseif ($action === 'summary') {
 206         $template = 'summary';
 207         $page['project'] = validate_project($_REQUEST['p']);
 208         $page['title'] = "$page[project] - Summary - ViewGit";
 209
 210         $info = git_get_commit_info($page['project']);
 211         $page['commit_id'] = $info['h'];
 212         $page['tree_id'] = $info['tree'];
 213
 214         $revs = git_get_rev_list($page['project'], $conf['summary_shortlog']);
 215         foreach ($revs as $rev) {
 216                 $info = git_get_commit_info($page['project'], $rev);
 217                 $page['shortlog'][] = array(
 218                         'author' => $info['author_name'],
 219                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 220                         'message' => $info['message'],
 221                         'commit_id' => $rev,
 222                         'tree' => $info['tree'],
 223                 );
 224         }
 225
 226         $tags = git_get_tags($page['project']);
 227         $page['tags'] = array();
 228         foreach ($tags as $tag) {
 229                 $info = git_get_commit_info($page['project'], $tag['h']);
 230                 $page['tags'][] = array(
 231                         'stamp' => $info['author_utcstamp'],
 232                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 233                         'h' => $tag['h'],
 234                         'fullname' => $tag['fullname'],
 235                         'name' => $tag['name'],
 236                 );
 237         }
 238         // sort tags newest first
 239         // aka. two more reasons to hate PHP (figuring those out is your homework:)
 240         $arr = $page['tags'];
 241         usort($arr, create_function(
 242                 '$x, $y',
 243                 '$a = $x["stamp"]; $b = $y["stamp"]; return ($a == $b ? 0 : ($a > $b ? -1 : 1));'
 244         ));
 245         // it's actually three, I lied.
 246         $page['tags'] = $arr;
 247
 248         $heads = git_get_heads($page['project']);
 249         $page['heads'] = array();
 250         foreach ($heads as $h) {
 251                 $info = git_get_commit_info($page['project'], $h['h']);
 252                 $page['heads'][] = array(
 253                         'date' => strftime($conf['datetime'], $info['author_utcstamp']),
 254                         'h' => $h['h'],
 255                         'fullname' => $h['fullname'],
 256                         'name' => $h['name'],
 257                 );
 258         }
 259 }
 260 /*
 261  * Shows a tree, with list of directories/files, links to them and download
 262  * links to archives.
 263  *
 264  * @param p project
 265  * @param h tree hash
 266  * @param hb OPTIONAL base commit (trees can be part of multiple commits, this
 267  * one denotes which commit the user navigated from)
 268  * @param f OPTIONAL path the user has followed to view this tree
 269  */
 270 elseif ($action === 'tree') {
 271         $template = 'tree';
 272         $page['project'] = validate_project($_REQUEST['p']);
 273         $page['tree_id'] = validate_hash($_REQUEST['h']);
 274         $page['title'] = "$page[project] - Tree - ViewGit";
 275
 276         // 'hb' optionally contains the commit_id this tree is related to
 277         if (isset($_REQUEST['hb'])) {
 278                 $page['commit_id'] = validate_hash($_REQUEST['hb']);
 279         }
 280         else {
 281                 // for the header
 282                 $info = git_get_commit_info($page['project']);
 283                 $page['commit_id'] = $info['h'];
 284         }
 285
 286         $page['path'] = '';
 287         if (isset($_REQUEST['f'])) {
 288                 $page['path'] = $_REQUEST['f']; // TODO validate?
 289         }
 290
 291         // get path info for the header
 292         $page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], explode('/', $page['path']));
 293
 294         $page['entries'] = git_ls_tree($page['project'], $page['tree_id']);
 295 }
 296 /*
 297  * View a blob as inline, embedded on the page.
 298  * @param p project
 299  * @param h blob hash
 300  * @param hb OPTIONAL base commit
 301  */
 302 elseif ($action === 'viewblob') {
 303         $template = 'blob';
 304         $page['project'] = validate_project($_REQUEST['p']);
 305         $page['hash'] = validate_hash($_REQUEST['h']);
 306         $page['title'] = "$page[project] - Blob - ViewGit";
 307         if (isset($_REQUEST['hb'])) {
 308                 $page['commit_id'] = validate_hash($_REQUEST['hb']);
 309         }
 310         else {
 311                 $page['commit_id'] = 'HEAD';
 312         }
 313
 314         $page['path'] = '';
 315         if (isset($_REQUEST['f'])) {
 316                 $page['path'] = $_REQUEST['f']; // TODO validate?
 317         }
 318
 319         // For the header's pagenav
 320         $info = git_get_commit_info($page['project'], $page['commit_id']);
 321         $page['commit_id'] = $info['h'];
 322         $page['tree_id'] = $info['tree'];
 323
 324         $page['pathinfo'] = git_get_path_info($page['project'], $page['commit_id'], explode('/', $page['path']));
 325
 326         $page['data'] = join("\n", run_git($page['project'], "git cat-file blob $page[hash]"));
 327 }
 328 else {
 329         die('Invalid action');
 330 }
 331
 332 require 'templates/header.php';
 333 require "templates/$template.php";
 334 require 'templates/footer.php';