1 | <?php |
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2 | defined('INSTAG_PATH') or die('Hacking attempt!'); |
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3 | |
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4 | /** |
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5 | * download a remote file |
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6 | * - needs cURL or allow_url_fopen |
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7 | * - take care of SSL urls |
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8 | * |
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9 | * @param: string source url |
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10 | * @param: mixed destination file (if true, file content is returned) |
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11 | */ |
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12 | if (!function_exists('download_remote_file')) |
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13 | { |
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14 | function download_remote_file($src, $dest) |
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15 | { |
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16 | if (empty($src)) |
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17 | { |
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18 | return false; |
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19 | } |
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20 | |
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21 | $return = ($dest === true) ? true : false; |
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22 | |
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23 | /* curl */ |
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24 | if (function_exists('curl_init')) |
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25 | { |
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26 | if (!$return) |
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27 | { |
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28 | $newf = fopen($dest, "wb"); |
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29 | } |
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30 | $ch = curl_init(); |
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31 | |
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32 | curl_setopt($ch, CURLOPT_URL, $src); |
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33 | curl_setopt($ch, CURLOPT_HEADER, false); |
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34 | curl_setopt($ch, CURLOPT_HTTPHEADER, array("Accept-language: en")); |
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35 | curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)'); |
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36 | curl_setopt($ch, CURLOPT_TIMEOUT, 30); |
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37 | if (!ini_get('safe_mode')) |
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38 | { |
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39 | curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); |
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40 | curl_setopt($ch, CURLOPT_MAXREDIRS, 1); |
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41 | } |
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42 | if (strpos($src, 'https://') !== false) |
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43 | { |
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44 | curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, 0); |
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45 | curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, 0); |
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46 | } |
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47 | if (!$return) |
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48 | { |
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49 | curl_setopt($ch, CURLOPT_FILE, $newf); |
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50 | } |
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51 | else |
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52 | { |
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53 | curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); |
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54 | } |
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55 | |
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56 | $out = curl_exec($ch); |
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57 | curl_close($ch); |
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58 | |
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59 | if ($out === false) |
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60 | { |
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61 | return 'file_error'; |
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62 | } |
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63 | else if (!$return) |
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64 | { |
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65 | fclose($newf); |
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66 | return true; |
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67 | } |
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68 | else |
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69 | { |
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70 | return $out; |
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71 | } |
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72 | } |
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73 | /* file get content */ |
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74 | else if (ini_get('allow_url_fopen')) |
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75 | { |
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76 | if (strpos($src, 'https://') !== false and !extension_loaded('openssl')) |
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77 | { |
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78 | return false; |
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79 | } |
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80 | |
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81 | $opts = array( |
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82 | 'http' => array( |
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83 | 'method' => "GET", |
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84 | 'user_agent' => 'Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1)', |
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85 | 'header' => "Accept-language: en", |
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86 | ) |
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87 | ); |
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88 | |
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89 | $context = stream_context_create($opts); |
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90 | |
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91 | if (($file = file_get_contents($src, false, $context)) === false) |
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92 | { |
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93 | return 'file_error'; |
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94 | } |
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95 | |
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96 | if (!$return) |
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97 | { |
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98 | file_put_contents($dest, $file); |
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99 | return true; |
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100 | } |
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101 | else |
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102 | { |
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103 | return $file; |
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104 | } |
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105 | } |
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106 | |
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107 | return false; |
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108 | } |
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109 | } |
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