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Diffstat (limited to 'node_modules/media-typer/index.js')
| -rw-r--r-- | node_modules/media-typer/index.js | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/node_modules/media-typer/index.js b/node_modules/media-typer/index.js deleted file mode 100644 index 07f7295..0000000 --- a/node_modules/media-typer/index.js +++ /dev/null @@ -1,270 +0,0 @@ -/*! - * media-typer - * Copyright(c) 2014 Douglas Christopher Wilson - * MIT Licensed - */ - -/** - * RegExp to match *( ";" parameter ) in RFC 2616 sec 3.7 - * - * parameter = token "=" ( token | quoted-string ) - * token = 1*<any CHAR except CTLs or separators> - * separators = "(" | ")" | "<" | ">" | "@" - * | "," | ";" | ":" | "\" | <"> - * | "/" | "[" | "]" | "?" | "=" - * | "{" | "}" | SP | HT - * quoted-string = ( <"> *(qdtext | quoted-pair ) <"> ) - * qdtext = <any TEXT except <">> - * quoted-pair = "\" CHAR - * CHAR = <any US-ASCII character (octets 0 - 127)> - * TEXT = <any OCTET except CTLs, but including LWS> - * LWS = [CRLF] 1*( SP | HT ) - * CRLF = CR LF - * CR = <US-ASCII CR, carriage return (13)> - * LF = <US-ASCII LF, linefeed (10)> - * SP = <US-ASCII SP, space (32)> - * SHT = <US-ASCII HT, horizontal-tab (9)> - * CTL = <any US-ASCII control character (octets 0 - 31) and DEL (127)> - * OCTET = <any 8-bit sequence of data> - */ -var paramRegExp = /; *([!#$%&'\*\+\-\.0-9A-Z\^_`a-z\|~]+) *= *("(?:[ !\u0023-\u005b\u005d-\u007e\u0080-\u00ff]|\\[\u0020-\u007e])*"|[!#$%&'\*\+\-\.0-9A-Z\^_`a-z\|~]+) */g; -var textRegExp = /^[\u0020-\u007e\u0080-\u00ff]+$/ -var tokenRegExp = /^[!#$%&'\*\+\-\.0-9A-Z\^_`a-z\|~]+$/ - -/** - * RegExp to match quoted-pair in RFC 2616 - * - * quoted-pair = "\" CHAR - * CHAR = <any US-ASCII character (octets 0 - 127)> - */ -var qescRegExp = /\\([\u0000-\u007f])/g; - -/** - * RegExp to match chars that must be quoted-pair in RFC 2616 - */ -var quoteRegExp = /([\\"])/g; - -/** - * RegExp to match type in RFC 6838 - * - * type-name = restricted-name - * subtype-name = restricted-name - * restricted-name = restricted-name-first *126restricted-name-chars - * restricted-name-first = ALPHA / DIGIT - * restricted-name-chars = ALPHA / DIGIT / "!" / "#" / - * "$" / "&" / "-" / "^" / "_" - * restricted-name-chars =/ "." ; Characters before first dot always - * ; specify a facet name - * restricted-name-chars =/ "+" ; Characters after last plus always - * ; specify a structured syntax suffix - * ALPHA = %x41-5A / %x61-7A ; A-Z / a-z - * DIGIT = %x30-39 ; 0-9 - */ -var subtypeNameRegExp = /^[A-Za-z0-9][A-Za-z0-9!#$&^_.-]{0,126}$/ -var typeNameRegExp = /^[A-Za-z0-9][A-Za-z0-9!#$&^_-]{0,126}$/ -var typeRegExp = /^ *([A-Za-z0-9][A-Za-z0-9!#$&^_-]{0,126})\/([A-Za-z0-9][A-Za-z0-9!#$&^_.+-]{0,126}) *$/; - -/** - * Module exports. - */ - -exports.format = format -exports.parse = parse - -/** - * Format object to media type. - * - * @param {object} obj - * @return {string} - * @api public - */ - -function format(obj) { - if (!obj || typeof obj !== 'object') { - throw new TypeError('argument obj is required') - } - - var parameters = obj.parameters - var subtype = obj.subtype - var suffix = obj.suffix - var type = obj.type - - if (!type || !typeNameRegExp.test(type)) { - throw new TypeError('invalid type') - } - - if (!subtype || !subtypeNameRegExp.test(subtype)) { - throw new TypeError('invalid subtype') - } - - // format as type/subtype - var string = type + '/' + subtype - - // append +suffix - if (suffix) { - if (!typeNameRegExp.test(suffix)) { - throw new TypeError('invalid suffix') - } - - string += '+' + suffix - } - - // append parameters - if (parameters && typeof parameters === 'object') { - var param - var params = Object.keys(parameters).sort() - - for (var i = 0; i < params.length; i++) { - param = params[i] - - if (!tokenRegExp.test(param)) { - throw new TypeError('invalid parameter name') - } - - string += '; ' + param + '=' + qstring(parameters[param]) - } - } - - return string -} - -/** - * Parse media type to object. - * - * @param {string|object} string - * @return {Object} - * @api public - */ - -function parse(string) { - if (!string) { - throw new TypeError('argument string is required') - } - - // support req/res-like objects as argument - if (typeof string === 'object') { - string = getcontenttype(string) - } - - if (typeof string !== 'string') { - throw new TypeError('argument string is required to be a string') - } - - var index = string.indexOf(';') - var type = index !== -1 - ? string.substr(0, index) - : string - - var key - var match - var obj = splitType(type) - var params = {} - var value - - paramRegExp.lastIndex = index - - while (match = paramRegExp.exec(string)) { - if (match.index !== index) { - throw new TypeError('invalid parameter format') - } - - index += match[0].length - key = match[1].toLowerCase() - value = match[2] - - if (value[0] === '"') { - // remove quotes and escapes - value = value - .substr(1, value.length - 2) - .replace(qescRegExp, '$1') - } - - params[key] = value - } - - if (index !== -1 && index !== string.length) { - throw new TypeError('invalid parameter format') - } - - obj.parameters = params - - return obj -} - -/** - * Get content-type from req/res objects. - * - * @param {object} - * @return {Object} - * @api private - */ - -function getcontenttype(obj) { - if (typeof obj.getHeader === 'function') { - // res-like - return obj.getHeader('content-type') - } - - if (typeof obj.headers === 'object') { - // req-like - return obj.headers && obj.headers['content-type'] - } -} - -/** - * Quote a string if necessary. - * - * @param {string} val - * @return {string} - * @api private - */ - -function qstring(val) { - var str = String(val) - - // no need to quote tokens - if (tokenRegExp.test(str)) { - return str - } - - if (str.length > 0 && !textRegExp.test(str)) { - throw new TypeError('invalid parameter value') - } - - return '"' + str.replace(quoteRegExp, '\\$1') + '"' -} - -/** - * Simply "type/subtype+siffx" into parts. - * - * @param {string} string - * @return {Object} - * @api private - */ - -function splitType(string) { - var match = typeRegExp.exec(string.toLowerCase()) - - if (!match) { - throw new TypeError('invalid media type') - } - - var type = match[1] - var subtype = match[2] - var suffix - - // suffix after last + - var index = subtype.lastIndexOf('+') - if (index !== -1) { - suffix = subtype.substr(index + 1) - subtype = subtype.substr(0, index) - } - - var obj = { - type: type, - subtype: subtype, - suffix: suffix - } - - return obj -} |