<?php defined("SYSPATH") or die("No direct script access.");
/**
 * Gallery - a web based photo album viewer and editor
 * Copyright (C) 2000-2009 Bharat Mediratta
 *
 * 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., 51 Franklin Street - Fifth Floor, Boston, MA  02110-1301, USA.
 */
class File_Structure_Test extends Unit_Test_Case {
  public function no_trailing_closing_php_tag_test() {
    $dir = new GalleryCodeFilterIterator(
      new RecursiveIteratorIterator(new RecursiveDirectoryIterator(DOCROOT)));
    foreach ($dir as $file) {
      if (!preg_match("|\.html\.php$|", $file->getPathname())) {
        $this->assert_false(
          preg_match('/\?\>\s*$/', file_get_contents($file)),
          "{$file->getPathname()} ends in ?>");
      }
    }
  }

  public function view_files_correct_suffix_test() {
    $dir = new GalleryCodeFilterIterator(
      new RecursiveIteratorIterator(new RecursiveDirectoryIterator(DOCROOT)));
    foreach ($dir as $file) {
      if (strpos($file, "views")) {
        $this->assert_true(
          preg_match("#/views/.*?(\.html|mrss|txt)\.php$#", $file->getPathname()),
          "{$file->getPathname()} should end in .{html,mrss,txt}.php");
      }
    }
  }

  public function no_windows_line_endings_test() {
    $dir = new GalleryCodeFilterIterator(
      new RecursiveIteratorIterator(new RecursiveDirectoryIterator(DOCROOT)));
    foreach ($dir as $file) {
      if (preg_match("/\.(php|css|html|js)$/", $file)) {
        foreach (file($file) as $line) {
          $this->assert_true(substr($line, -2) != "\r\n", "$file has windows style line endings");
        }
      }
    }
  }

  public function code_files_start_with_gallery_preamble_test() {
    $dir = new GalleryCodeFilterIterator(
      new RecursiveIteratorIterator(new RecursiveDirectoryIterator(DOCROOT)));

    $expected = $this->_get_preamble(__FILE__);
    $errors = array();
    foreach ($dir as $file) {
      if (preg_match("/views/", $file->getPathname()) ||
          $file->getPathName() == DOCROOT . "installer/database_config.php" ||
          $file->getPathName() == DOCROOT . "installer/init_var.php") {
        // The preamble for views is a single line that prevents direct script access
        $lines = file($file->getPathname());
        $view_expected = "<?php defined(\"SYSPATH\") or die(\"No direct script access.\") ?>\n";
        if ($view_expected != $lines[0]) {
          $errors[] = "{$file->getPathName()} line 1 expected $view_expected";
        }
      } else if (preg_match("|\.php$|", $file->getPathname())) {
        $actual = $this->_get_preamble($file->getPathname());
        if ($file->getPathName() == DOCROOT . "index.php" ||
            $file->getPathName() == DOCROOT . "installer/index.php") {
          // index.php and installer/index.php allow direct access; modify our expectations for them
          $index_expected = $expected;
          $index_expected[0] = "<?php";
          if ($index_expected != $actual) {
            $errors[] = "{$file->getPathName()} line 1 expected $index_expected";
          }
        } else {
          // We expect the full preamble in regular PHP files
          $actual = $this->_get_preamble($file->getPathname());
          if ($expected != $actual) {
            $errors[] = "{$file->getPathName()} line 1 expected $expected";
          }
        }
      }
    }

    if ($errors) {
      $this->assert_false(true, "Preamble errors:\n" . join("\n", $errors));
    }
  }

  public function no_tabs_in_our_code_test() {
    $dir = new PhpCodeFilterIterator(
      new GalleryCodeFilterIterator(
        new RecursiveIteratorIterator(
          new RecursiveDirectoryIterator(DOCROOT))));
    foreach ($dir as $file) {
      $this->assert_false(
        preg_match('/\t/', file_get_contents($file)),
        "{$file->getPathname()} has tabs in it");
    }
  }

  private function _get_preamble($file) {
    $lines = file($file);
    $copy = array();
    for ($i = 0; $i < count($lines); $i++) {
      $copy[] = rtrim($lines[$i]);
      if (!strncmp($lines[$i], ' */', 3)) {
        return $copy;
      }
    }
    return $copy;
  }

  public function helpers_are_static_test() {
    $dir = new PhpCodeFilterIterator(
      new GalleryCodeFilterIterator(
        new RecursiveIteratorIterator(
          new RecursiveDirectoryIterator(DOCROOT))));
    foreach ($dir as $file) {
      if (basename(dirname($file)) == "helpers") {
        foreach (file($file) as $line) {
          $this->assert_true(
            !preg_match("/\sfunction\s.*\(/", $line) ||
            preg_match("/^\s*(private static function _|static function)/", $line),
            "should be \"static function foo\" or \"private static function _foo\":\n" .
            "$file\n$line\n");
        }
      }
    }
  }
}

class PhpCodeFilterIterator extends FilterIterator {
  public function accept() {
    return substr($this->getInnerIterator()->getPathName(), -4) == ".php";
  }
}

class GalleryCodeFilterIterator extends FilterIterator {
  public function accept() {
    // Skip anything that we didn"t write
    $path_name = $this->getInnerIterator()->getPathName();
    return !(
      strpos($path_name, ".svn") ||
      strpos($path_name, "core/views/kohana_profiler.php") !== false ||
      strpos($path_name, DOCROOT . "test") !== false ||
      strpos($path_name, DOCROOT . "var") !== false ||
      strpos($path_name, MODPATH . "forge") !== false ||
      strpos($path_name, MODPATH . "gallery_unit_test/views/kohana_error_page.php") !== false ||
      strpos($path_name, MODPATH . "gallery_unit_test/views/kohana_unit_test.php") !== false ||
      strpos($path_name, MODPATH . "kodoc") !== false ||
      strpos($path_name, MODPATH . "mptt") !== false ||
      strpos($path_name, MODPATH . "unit_test") !== false ||
      strpos($path_name, MODPATH . "exif/lib") !== false ||
      strpos($path_name, MODPATH . "user/libraries/PasswordHash") !== false ||
      strpos($path_name, DOCROOT . "lib/swfupload") !== false ||
      strpos($path_name, SYSPATH) !== false ||
      substr($path_name, -1, 1) == "~");
  }
}