blame.php

<?php
// WebSVN - Subversion repository viewing via the web using PHP
// Copyright (C) 2004-2006 Tim Armes
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// --
//
// blame.php
//
// Show the blame information of a file.
//

require_once 'include/setup.php';
require_once 'include/svnlook.php';
require_once 'include/utils.php';
require_once 'include/template.php';

$vars['action'] = $lang['BLAME'];

// Make sure that we have a repository
if ($rep) {
    $svnrep = new SVNRepository($rep);

    // If there's no revision info, go to the lastest revision for this path
    $history = $svnrep->getLog($path, 'HEAD', 1, false, 2, ($path == '/') ? '' : $peg);
    if (!$history) {
        unset($vars['error']);
        $history = $svnrep->getLog($path, '', '', false, 2, ($path == '/') ? '' : $peg);
        if (!$history) {
            header('HTTP/1.x 404 Not Found', true, 404);
            $vars['error'] = $lang['NOPATH'];
        }
    }
    $youngest = ($history && isset($history->entries[0])) ? $history->entries[0]->rev : false;

    if (empty($rev)) {
        $rev = $youngest;
    } else {
        $history = $svnrep->getLog($path, $rev, '', false, 2, $peg);
        if (!$history) {
            header('HTTP/1.x 404 Not Found', true, 404);
            $vars['error'] = $lang['NOPATH'];
        }
    }

    if ($path{0} != '/') {
        $ppath = '/' . $path;
    } else {
        $ppath = $path;
    }

    // Find the parent path (or the whole path if it's already a directory)
    $pos = strrpos($ppath, '/');
    $parent = substr($ppath, 0, $pos + 1);

    $vars['rev'] = $rev;
    $vars['peg'] = $peg;
    $vars['path'] = escape($ppath);

    if (isset($history->entries[0])) {
        $vars['log'] = xml_entities($history->entries[0]->msg);
        $vars['date'] = $history->entries[0]->date;
        $vars['age'] = datetimeFormatDuration(time() - strtotime($history->entries[0]->date));
        $vars['author'] = $history->entries[0]->author;
    }

    createPathLinks($rep, $ppath, $passrev, $peg);
    $passRevString = createRevAndPegString($rev, $peg);

    if ($rev != $youngest) {
        $vars['goyoungesturl'] = $config->getURL($rep, $path, 'blame') . createRevAndPegString('', $peg);
        $vars['goyoungestlink'] = '<a href="' . $vars['goyoungesturl'] . '"' . ($youngest ? ' title="' . $lang['REV'] . ' ' . $youngest . '"' : '') . '>' . $lang['GOYOUNGEST'] . '</a>';
    }

    $revurl = $config->getURL($rep, $path, 'blame');
    if ($rev < $youngest) {
        $history2 = $svnrep->getLog($path, $rev, $youngest, true, 2, $peg);
        if (isset($history2->entries[1])) {
            $nextRev = $history2->entries[1]->rev;
            if ($nextRev != $youngest) {
                $vars['nextrev'] = $nextRev;
                $vars['nextrevurl'] = $revurl . createRevAndPegString($nextRev, $peg);
            }
        }
        unset($vars['error']);
    }

    if (isset($history->entries[1])) {
        $prevRev = $history->entries[1]->rev;
        $prevPath = $history->entries[1]->path;
        $vars['prevrev'] = $prevRev;
        $vars['prevrevurl'] = $revurl . createRevAndPegString($prevRev, $peg);
    }

    $vars['revurl'] = $config->getURL($rep, $path, 'revision') . $passRevString;
    $vars['revlink'] = '<a href="' . $vars['revurl'] . '">' . $lang['LASTMOD'] . '</a>';

    $vars['logurl'] = $config->getURL($rep, $path, 'log') . $passRevString;
    $vars['loglink'] = '<a href="' . $vars['logurl'] . '">' . $lang['VIEWLOG'] . '</a>';

    $vars['filedetailurl'] = $config->getURL($rep, $path, 'file') . $passRevString;
    $vars['filedetaillink'] = '<a href="' . $vars['filedetailurl'] . '">' . $lang['FILEDETAIL'] . '</a>';

    if ($history == null || count($history->entries) > 1) {
        $vars['diffurl'] = $config->getURL($rep, $path, 'diff') . $passRevString;
        $vars['difflink'] = '<a href="' . $vars['diffurl'] . '">' . $lang['DIFFPREV'] . '</a>';
    }

    if ($rep->isRssEnabled()) {
        $vars['rssurl'] = $config->getURL($rep, $path, 'rss') . createRevAndPegString('', $peg);
        $vars['rsslink'] = '<a href="' . $vars['rssurl'] . '">' . $lang['RSSFEED'] . '</a>';
    }

    // Check for binary file type before grabbing blame information.
    $svnMimeType = $svnrep->getProperty($path, 'svn:mime-type', $rev, $peg);

    if (!$rep->getIgnoreSvnMimeTypes() && preg_match('~application/*~', $svnMimeType)) {
        $vars['warning'] = 'Cannot display blame info for binary file. (svn:mime-type = ' . $svnMimeType . ')';
        $vars['javascript'] = '';
    } else {
        // Get the contents of the file
        $tfname = tempnamWithCheck($config->getTempDir(), '');
        $highlighted = $svnrep->getFileContents($path, $tfname, $rev, $peg, '', 'line');

        if ($file = fopen($tfname, 'r')) {
            // Get the blame info
            $tbname = tempnamWithCheck($config->getTempDir(), '');

            $svnrep->getBlameDetails($path, $tbname, $rev, $peg);

            if ($blame = fopen($tbname, 'r')) {
                // Create an array of version/author/line

                $index = 0;
                $seen_rev = array();
                $last_rev = '';
                $row_class = '';

                while (!feof($blame) && !feof($file)) {
                    $blameline = fgets($blame);

                    if ($blameline != '') {
                        list($revision, $author, $remainder) = sscanf($blameline, '%d %s %s');
                        $empty = !$remainder;

                        $listvar = &$listing[$index];
                        $listvar['lineno'] = $index + 1;

                        if ($last_rev != $revision) {
                            $listvar['revision'] = '<a id="l' . $index . '-rev" class="blame-revision" href="' . $config->getURL($rep, $path, 'blame') . createRevAndPegString($revision, $peg ? $peg : $rev) . '">' . $revision . '</a>';
                            $seen_rev[$revision] = 1;
                            $row_class = ($row_class == 'light') ? 'dark' : 'light';
                            $listvar['author'] = $author;
                        } else {
                            $listvar['revision'] = '';
                            $listvar['author'] = '';
                        }

                        $listvar['row_class'] = $row_class;
                        $last_rev = $revision;

                        $line = rtrim(fgets($file));
                        if (!$highlighted) {
                            $line = escape(toOutputEncoding($line));
                        }
                        $listvar['line'] = ($empty) ? '&nbsp;' : wrapInCodeTagIfNecessary($line);
                        $index++;
                    }
                }
                fclose($blame);
            }
            fclose($file);
            @unlink($tbname);
        }
        @unlink($tfname);

        // Build the necessary JavaScript as an array of lines, then join them with \n
        $javascript = array();
        $javascript[] = '<script type="text/javascript" src="' . $locwebsvnhttp . '/javascript/blame-popup.js"></script>';
        $javascript[] = '<script type="text/javascript">';
        $javascript[] = '/* <![CDATA[ */';
        $javascript[] = 'var rev = new Array();';

        // Sort revisions in descending order by key
        ksort($seen_rev);

        if (empty($peg)) {
            $peg = $rev;
        }

        if (!isset($vars['warning'])) {
            foreach ($seen_rev as $key => $val) {
                $history = $svnrep->getLog($path, $key, $key, false, 1, $peg);
                if ($history) {
                    $javascript[] = 'rev[' . $key . '] = \'<div class="date">' . $history->curEntry->date . '</div><div class="msg">' . addslashes(preg_replace('/\n/', ' ', $history->curEntry->msg)) . '</div>\';';
                }
            }
        }

        $javascript[] = '/* ]]> */';
        $javascript[] = '</script>';
        $vars['javascript'] = implode("\n", $javascript);
    }

    if (!$rep->hasReadAccess($path, false)) {
        $vars['error'] = $lang['NOACCESS'];
        checkSendingAuthHeader($rep);
    }

} else {
    header('HTTP/1.x 404 Not Found', true, 404);
}

renderTemplate('blame');