<?php

require_once('common.inc.php');

use mikehaertl\wkhtmlto\Pdf;

define('STEP_COMMIT', 1);

define('STEP_FILES', 2);

define('STEP_DISPLAY', 3);

function isInvisible($path) {

return empty($_REQUEST['ignore_invisible']) || ($_REQUEST['ignore_invisible'] && !preg_match('%^(\..*)|(.*\/\..*)%', $path));

}

function isFiltered($filename) {

return empty($_REQUEST['enable_filter']) || ($_REQUEST['enable_filter'] && preg_match("%{$_REQUEST['regex_filter']}%", $filename));

}

$step = (empty($_REQUEST['step']) ? STEP_COMMIT : $_REQUEST['step']);

$extensions = array(

'tpl' => 'smarty'

);

switch($step) {

case STEP_DISPLAY:

try {

$commit = json_decode(

$github->get($_REQUEST['commit']),

true

);

} catch (Exception $e) {

$smarty->addMessage(

'Problem Retrieving Commit Information',

'There was a problem retrieving the information about your commit. Please make sure that you have given the GitHub user <code>' . $secrets->github->user . '</code> access to your repository.',

NotificationMessage::ERROR

);

$step = STEP_COMMIT;

}

if ($step == STEP_DISPLAY) {

$smarty->assign('title', date('Y-m-d ', strtotime($commit['author']['date'])). strtok($commit['message'], "\n") . " by {$commit['author']['name']}");

$commit['message'] = \Michelf\Markdown::defaultTransform('# ' . $commit['message']);

$smarty->assign('commit', $commit);

$files = array();

foreach ($_REQUEST['files'] as $path => $url) {

$blob = json_decode($github->get($url), true);

$language = preg_replace('/^.*\.(\w+)$/', '$1', $path);

if (array_key_exists($language, $extensions)) {

$language = $extensions[$language];

}

$geshi = new GeSHi(base64_decode($blob['content']), $language);

$geshi->set_header_type(GESHI_HEADER_DIV);

$geshi->enable_line_numbers(GESHI_NORMAL_LINE_NUMBERS);

$geshi->set_line_style('color: lightgray;');

$geshi->set_code_style('color: black;');

$files[$path] = array(

'filename' => basename($path),

'path' => dirname($path),

'content' => '<div class="geshi">' . $geshi->parse_code() . '</div>'

);

}

$smarty->assign('files', $files);

if (empty($_REQUEST['pdf']) || !$_REQUEST['pdf']) {

$smarty->display('display.tpl');

} else {

$pdf = new Pdf([

'print-media-type',

'dpi' => 300, // FIXME may be Mac-specific (cf. https://github.com/wkhtmltopdf/wkhtmltopdf/issues/3241)

'margin-left' => 25.4, // FIXME 25.4mm = 1in

'margin-right' => 25.4,

'margin-top' => 25.4,

'margin-bottom' => 25.4

]);

$pdf->binary = $secrets->wkhtmltopdf;

$pdf->addPage($smarty->fetch('display.tpl'));

$pdf->send($smarty->getTemplateVars('title') . '.pdf');

exit;

}

break;

}

/* flow into STEP_FILES */

case STEP_FILES:

if (empty($_REQUEST['commit_url'])) {

$smarty->addMessage(

'Missing Commit URL',

'You must provide the URL of a specific commit to your repository on GitHub for this to work.',

NotificationMessage::ERROR

);

$step = STEP_COMMIT;

}

if ($step == STEP_FILES) {

/* get the commit information */

try {

$commit = json_decode(

$github->get(

preg_replace(

'%^https://github.com/(.*)/commit/(.*)$%',

'repos/$1/commits/$2',

$_REQUEST['commit_url']

)

),

true

);

} catch (Exception $e) {

$smarty->addMessage(

'Commit URL Problem',

'The URL that your provided for your commit (<a href="' . $_REQUEST['commit_url'] . '">' . $_REQUEST['commit_url'] . '</a>) could not be found on GitHub. Please check to make sure that you are, in fact, providing the URL of a specific commit in your repository (rather than, say, the URL of a particular source file or directory) and that you have given the GitHub user <code>' . $secrets->github->user . '</code> access to your repository.',

NotificationMessage::ERROR

);

$step = STEP_COMMIT;

}

if ($step == STEP_FILES) {

/* get the commit tree */

try {

$commitTree = json_decode(

$github->get(

preg_replace(

'%^https://github.com/(.*)/commit/(.*)$%',

'repos/$1/git/trees/$2',

$_REQUEST['commit_url']

),

array(

'recursive' => true

)

),

true

);

} catch (Exception $e) {

$smarty->addMessage(

'Problem Retrieving File List',

'There was a problem retrieving the list of files changed in <a href="">your commit</a>. Please make sure that you have given the GitHub user <code>' . $secrets->github->user . '</code> access to your repository.',

NotificationMessage::EROR

);

$step = STEP_COMMIT;

}

if ($step == STEP_FILES) {

/* make a list of changed subdirectories of the root (i.e. Eclipse projects) */

$changes = array();

foreach ($commit['files'] as $file) {

if (isInvisible($file['filename'])) {

if(isFiltered(basename($file['filename']))) {

$parts = explode('/', $file['filename']);

if (!in_array($parts[0], $changes)) {

$changes[] = $parts[0];

}

}

}

}

/* make a list of viewable files in the commit tree */

$tree = array();

$currentDir = '@';

foreach ($commitTree['tree'] as $leaf) {

if (isInvisible($leaf['path'])) {

if(isFiltered(basename($leaf['path']))) {

$parts = explode('/', dirname($leaf['path']));

$leaf['changed'] = in_array($parts[0], $changes);

$leaf['filename'] = basename($leaf['path']);

$leaf['path_parts'] = $parts;

$tree[$leaf['path']] = $leaf;

}

}

}

$commit['commit']['message'] = \Michelf\Markdown::defaultTransform('### ' . $commit['commit']['message']);

$smarty->assign('commit', $commit['commit']);

$smarty->assign('tree', $tree);

$smarty->assign('formTemplate', 'files.tpl');

$smarty->assign('formHidden', array('step' => STEP_DISPLAY));

$smarty->display('picker.tpl');

break;

}

}

}

/* flow into STEP_COMMIT */

case STEP_COMMIT:

default;

$smarty->assign('formTemplate', 'commit.tpl');

$smarty->assign('formHidden', array('step' => STEP_FILES));

$smarty->display('picker.tpl');

}

?>