diff options
Diffstat (limited to 'src/Wallabag/CoreBundle/Helper/Tools.php')
-rwxr-xr-x | src/Wallabag/CoreBundle/Helper/Tools.php | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/Wallabag/CoreBundle/Helper/Tools.php b/src/Wallabag/CoreBundle/Helper/Tools.php new file mode 100755 index 00000000..c773af37 --- /dev/null +++ b/src/Wallabag/CoreBundle/Helper/Tools.php | |||
@@ -0,0 +1,141 @@ | |||
1 | <?php | ||
2 | |||
3 | namespace Wallabag\CoreBundle\Helper; | ||
4 | |||
5 | use \RecursiveIteratorIterator; | ||
6 | use \RecursiveDirectoryIterator; | ||
7 | |||
8 | final class Tools | ||
9 | { | ||
10 | /** | ||
11 | * Download a file (typically, for downloading pictures on web server) | ||
12 | * | ||
13 | * @param $url | ||
14 | * @return bool|mixed|string | ||
15 | */ | ||
16 | public static function getFile($url) | ||
17 | { | ||
18 | $timeout = 15; | ||
19 | $useragent = "Mozilla/5.0 (Windows NT 5.1; rv:18.0) Gecko/20100101 Firefox/18.0"; | ||
20 | |||
21 | if (in_array ('curl', get_loaded_extensions())) { | ||
22 | # Fetch feed from URL | ||
23 | $curl = curl_init(); | ||
24 | curl_setopt($curl, CURLOPT_URL, $url); | ||
25 | curl_setopt($curl, CURLOPT_TIMEOUT, $timeout); | ||
26 | if (!ini_get('open_basedir') && !ini_get('safe_mode')) { | ||
27 | curl_setopt($curl, CURLOPT_FOLLOWLOCATION, true); | ||
28 | } | ||
29 | curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); | ||
30 | curl_setopt($curl, CURLOPT_HEADER, false); | ||
31 | |||
32 | # for ssl, do not verified certificate | ||
33 | curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); | ||
34 | curl_setopt($curl, CURLOPT_AUTOREFERER, TRUE ); | ||
35 | |||
36 | # FeedBurner requires a proper USER-AGENT... | ||
37 | curl_setopt($curl, CURL_HTTP_VERSION_1_1, true); | ||
38 | curl_setopt($curl, CURLOPT_ENCODING, "gzip, deflate"); | ||
39 | curl_setopt($curl, CURLOPT_USERAGENT, $useragent); | ||
40 | |||
41 | $data = curl_exec($curl); | ||
42 | $httpcode = curl_getinfo($curl, CURLINFO_HTTP_CODE); | ||
43 | $httpcodeOK = isset($httpcode) and ($httpcode == 200 or $httpcode == 301); | ||
44 | curl_close($curl); | ||
45 | } else { | ||
46 | # create http context and add timeout and user-agent | ||
47 | $context = stream_context_create( | ||
48 | array( | ||
49 | 'http' => array( | ||
50 | 'timeout' => $timeout, | ||
51 | 'header' => "User-Agent: " . $useragent, | ||
52 | 'follow_location' => true | ||
53 | ), | ||
54 | 'ssl' => array( | ||
55 | 'verify_peer' => false, | ||
56 | 'allow_self_signed' => true | ||
57 | ) | ||
58 | ) | ||
59 | ); | ||
60 | |||
61 | # only download page lesser than 4MB | ||
62 | $data = @file_get_contents($url, false, $context, -1, 4000000); | ||
63 | |||
64 | if (isset($http_response_header) and isset($http_response_header[0])) { | ||
65 | $httpcodeOK = isset($http_response_header) and isset($http_response_header[0]) and ((strpos($http_response_header[0], '200 OK') !== FALSE) or (strpos($http_response_header[0], '301 Moved Permanently') !== FALSE)); | ||
66 | } | ||
67 | } | ||
68 | |||
69 | # if response is not empty and response is OK | ||
70 | if (isset($data) and isset($httpcodeOK) and $httpcodeOK) { | ||
71 | |||
72 | # take charset of page and get it | ||
73 | preg_match('#<meta .*charset=.*>#Usi', $data, $meta); | ||
74 | |||
75 | # if meta tag is found | ||
76 | if (!empty($meta[0])) { | ||
77 | preg_match('#charset="?(.*)"#si', $meta[0], $encoding); | ||
78 | # if charset is found set it otherwise, set it to utf-8 | ||
79 | $html_charset = (!empty($encoding[1])) ? strtolower($encoding[1]) : 'utf-8'; | ||
80 | if (empty($encoding[1])) $encoding[1] = 'utf-8'; | ||
81 | } else { | ||
82 | $html_charset = 'utf-8'; | ||
83 | $encoding[1] = ''; | ||
84 | } | ||
85 | |||
86 | # replace charset of url to charset of page | ||
87 | $data = str_replace('charset=' . $encoding[1], 'charset=' . $html_charset, $data); | ||
88 | |||
89 | return $data; | ||
90 | } | ||
91 | else { | ||
92 | return FALSE; | ||
93 | } | ||
94 | } | ||
95 | |||
96 | /** | ||
97 | * Encode a URL by using a salt | ||
98 | * | ||
99 | * @param $string | ||
100 | * @return string | ||
101 | */ | ||
102 | public static function encodeString($string) | ||
103 | { | ||
104 | return sha1($string . SALT); | ||
105 | } | ||
106 | |||
107 | /** | ||
108 | * Returns the correct header for a status code | ||
109 | * | ||
110 | * @param $status_code | ||
111 | */ | ||
112 | private static function _status($status_code) | ||
113 | { | ||
114 | if (strpos(php_sapi_name(), 'apache') !== false) { | ||
115 | |||
116 | header('HTTP/1.0 '.$status_code); | ||
117 | } | ||
118 | else { | ||
119 | |||
120 | header('Status: '.$status_code); | ||
121 | } | ||
122 | } | ||
123 | |||
124 | public static function generateToken() | ||
125 | { | ||
126 | if (ini_get('open_basedir') === '') { | ||
127 | if (strtoupper(substr(PHP_OS, 0, 3)) === 'WIN') { | ||
128 | // alternative to /dev/urandom for Windows | ||
129 | $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20); | ||
130 | } else { | ||
131 | $token = substr(base64_encode(file_get_contents('/dev/urandom', false, null, 0, 20)), 0, 15); | ||
132 | } | ||
133 | } | ||
134 | else { | ||
135 | $token = substr(base64_encode(uniqid(mt_rand(), true)), 0, 20); | ||
136 | } | ||
137 | |||
138 | return str_replace('+', '', $token); | ||
139 | } | ||
140 | |||
141 | } | ||