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url.php
140 lines
| 1 | <?php |
| 2 | |
| 3 | namespace ProfilePressVendor\Safe; |
| 4 | |
| 5 | use ProfilePressVendor\Safe\Exceptions\UrlException; |
| 6 | /** |
| 7 | * Decodes a base64 encoded data. |
| 8 | * |
| 9 | * @param string $data The encoded data. |
| 10 | * @param bool $strict If the strict parameter is set to TRUE |
| 11 | * then the base64_decode function will return |
| 12 | * FALSE if the input contains character from outside the base64 |
| 13 | * alphabet. Otherwise invalid characters will be silently discarded. |
| 14 | * @return string Returns the decoded data. The returned data may be |
| 15 | * binary. |
| 16 | * @throws UrlException |
| 17 | * |
| 18 | */ |
| 19 | function base64_decode(string $data, bool $strict = \false): string |
| 20 | { |
| 21 | error_clear_last(); |
| 22 | $result = \base64_decode($data, $strict); |
| 23 | if ($result === \false) { |
| 24 | throw UrlException::createFromPhpError(); |
| 25 | } |
| 26 | return $result; |
| 27 | } |
| 28 | /** |
| 29 | * get_headers returns an array with the headers sent |
| 30 | * by the server in response to a HTTP request. |
| 31 | * |
| 32 | * @param string $url The target URL. |
| 33 | * @param int $format If the optional format parameter is set to non-zero, |
| 34 | * get_headers parses the response and sets the |
| 35 | * array's keys. |
| 36 | * @param resource $context A valid context resource created with |
| 37 | * stream_context_create. |
| 38 | * @return array Returns an indexed or associative array with the headers. |
| 39 | * @throws UrlException |
| 40 | * |
| 41 | */ |
| 42 | function get_headers(string $url, int $format = 0, $context = null): array |
| 43 | { |
| 44 | error_clear_last(); |
| 45 | if ($context !== null) { |
| 46 | $result = \get_headers($url, $format, $context); |
| 47 | } else { |
| 48 | $result = \get_headers($url, $format); |
| 49 | } |
| 50 | if ($result === \false) { |
| 51 | throw UrlException::createFromPhpError(); |
| 52 | } |
| 53 | return $result; |
| 54 | } |
| 55 | /** |
| 56 | * This function parses a URL and returns an associative array containing any |
| 57 | * of the various components of the URL that are present. |
| 58 | * The values of the array elements are not URL decoded. |
| 59 | * |
| 60 | * This function is not meant to validate |
| 61 | * the given URL, it only breaks it up into the above listed parts. Partial |
| 62 | * URLs are also accepted, parse_url tries its best to |
| 63 | * parse them correctly. |
| 64 | * |
| 65 | * @param string $url The URL to parse. Invalid characters are replaced by |
| 66 | * _. |
| 67 | * @param int $component Specify one of PHP_URL_SCHEME, |
| 68 | * PHP_URL_HOST, PHP_URL_PORT, |
| 69 | * PHP_URL_USER, PHP_URL_PASS, |
| 70 | * PHP_URL_PATH, PHP_URL_QUERY |
| 71 | * or PHP_URL_FRAGMENT to retrieve just a specific |
| 72 | * URL component as a string (except when |
| 73 | * PHP_URL_PORT is given, in which case the return |
| 74 | * value will be an integer). |
| 75 | * @return mixed On seriously malformed URLs, parse_url. |
| 76 | * |
| 77 | * If the component parameter is omitted, an |
| 78 | * associative array is returned. At least one element will be |
| 79 | * present within the array. Potential keys within this array are: |
| 80 | * |
| 81 | * |
| 82 | * |
| 83 | * scheme - e.g. http |
| 84 | * |
| 85 | * |
| 86 | * |
| 87 | * |
| 88 | * host |
| 89 | * |
| 90 | * |
| 91 | * |
| 92 | * |
| 93 | * port |
| 94 | * |
| 95 | * |
| 96 | * |
| 97 | * |
| 98 | * user |
| 99 | * |
| 100 | * |
| 101 | * |
| 102 | * |
| 103 | * pass |
| 104 | * |
| 105 | * |
| 106 | * |
| 107 | * |
| 108 | * path |
| 109 | * |
| 110 | * |
| 111 | * |
| 112 | * |
| 113 | * query - after the question mark ? |
| 114 | * |
| 115 | * |
| 116 | * |
| 117 | * |
| 118 | * fragment - after the hashmark # |
| 119 | * |
| 120 | * |
| 121 | * |
| 122 | * |
| 123 | * If the component parameter is specified, |
| 124 | * parse_url returns a string (or an |
| 125 | * integer, in the case of PHP_URL_PORT) |
| 126 | * instead of an array. If the requested component doesn't exist |
| 127 | * within the given URL, NULL will be returned. |
| 128 | * @throws UrlException |
| 129 | * |
| 130 | */ |
| 131 | function parse_url(string $url, int $component = -1) |
| 132 | { |
| 133 | error_clear_last(); |
| 134 | $result = \parse_url($url, $component); |
| 135 | if ($result === \false) { |
| 136 | throw UrlException::createFromPhpError(); |
| 137 | } |
| 138 | return $result; |
| 139 | } |
| 140 |