Initial commit

node_modules/negotiator/lib/accept.js

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+/*!
+ * negotiator
+ * Copyright(c) 2026 Blake Embrey
+ * MIT Licensed
+ */
+
+'use strict';
+
+var contentType = require('content-type');
+
+/**
+ * Module exports.
+ * @private
+ */
+
+module.exports = parseAccept;
+
+/**
+ * Parse an Accept-style header.
+ * @private
+ */
+
+function parseAccept(header) {
+  var values = [];
+  var index = 0;
+
+  while (index < header.length) {
+    var start = skipOptionalWhitespace(header, index);
+    var parsed = contentType.parse(header, { comma: true, start: start });
+
+    // `content-type` normalizes the type, but accept methods return original casing.
+    parsed.type = header.slice(start, start + parsed.type.length);
+    values.push(parsed);
+
+    index = parsed.index + 1;
+  }
+
+  return values;
+}
+
+/**
+ * Skip optional whitespace.
+ * @private
+ */
+
+function skipOptionalWhitespace(header, index) {
+  var cursor = index;
+
+  while (header.charCodeAt(cursor) === 0x20 || header.charCodeAt(cursor) === 0x09) {
+    cursor++;
+  }
+
+  return cursor;
+}

node_modules/negotiator/lib/charset.js

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+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+var parseAccept = require('./accept');
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredCharsets;
+module.exports.preferredCharsets = preferredCharsets;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+function parseAcceptCharset(accept) {
+  var accepts = parseAccept(accept);
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var charset = formatCharset(accepts[i], i);
+    if (charset) accepts[j++] = charset;
+  }
+
+  accepts.length = j;
+  return accepts;
+}
+
+/**
+ * Format a parsed charset for negotiation.
+ * @private
+ */
+
+function formatCharset(parsed, i) {
+  if (!parsed.type) return null;
+
+  return {
+    charset: parsed.type,
+    q: parsed.parameters.q ? parseFloat(parsed.parameters.q) : 1,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of a charset.
+ * @private
+ */
+
+function getCharsetPriority(charset, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(charset, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the charset.
+ * @private
+ */
+
+function specify(charset, spec, index) {
+  var s = 0;
+  if(spec.charset.toLowerCase() === charset.toLowerCase()){
+    s |= 1;
+  } else if (spec.charset !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+}
+
+/**
+ * Get the preferred charsets from an Accept-Charset header.
+ * @public
+ */
+
+function preferredCharsets(accept, provided) {
+  // RFC 2616 sec 14.2: no header = *
+  var accepts = parseAcceptCharset(accept === undefined ? '*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all charsets
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullCharset);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getCharsetPriority(type, accepts, index);
+  });
+
+  // sorted list of accepted charsets
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getCharset(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full charset string.
+ * @private
+ */
+
+function getFullCharset(spec) {
+  return spec.charset;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}

node_modules/negotiator/lib/encoding.js

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+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+var parseAccept = require('./accept');
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredEncodings;
+module.exports.preferredEncodings = preferredEncodings;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+function parseAcceptEncoding(accept) {
+  var accepts = parseAccept(accept);
+  var hasIdentity = false;
+  var minQuality = 1;
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var encoding = formatEncoding(accepts[i], i);
+
+    if (encoding) {
+      accepts[j++] = encoding;
+      hasIdentity = hasIdentity || specify('identity', encoding);
+      minQuality = Math.min(minQuality, encoding.q || 1);
+    }
+  }
+
+  if (!hasIdentity) {
+    /*
+     * If identity doesn't explicitly appear in the accept-encoding header,
+     * it's added to the list of acceptable encoding with the lowest q
+     */
+    accepts[j++] = {
+      encoding: 'identity',
+      q: minQuality,
+      i: i
+    };
+  }
+
+  accepts.length = j;
+  return accepts;
+}
+
+/**
+ * Format a parsed encoding for negotiation.
+ * @private
+ */
+
+function formatEncoding(parsed, i) {
+  if (!parsed.type) return null;
+
+  return {
+    encoding: parsed.type,
+    q: parsed.parameters.q ? parseFloat(parsed.parameters.q) : 1,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of an encoding.
+ * @private
+ */
+
+function getEncodingPriority(encoding, accepted, index) {
+  var priority = {encoding: encoding, o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(encoding, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the encoding.
+ * @private
+ */
+
+function specify(encoding, spec, index) {
+  var s = 0;
+  if(spec.encoding.toLowerCase() === encoding.toLowerCase()){
+    s |= 1;
+  } else if (spec.encoding !== '*' ) {
+    return null
+  }
+
+  return {
+    encoding: encoding,
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+};
+
+/**
+ * Get the preferred encodings from an Accept-Encoding header.
+ * @public
+ */
+
+function preferredEncodings(accept, provided, preferred) {
+  var accepts = parseAcceptEncoding(accept || '');
+
+  var comparator = preferred ? function comparator (a, b) {
+    if (a.q !== b.q) {
+      return b.q - a.q // higher quality first
+    }
+
+    var aPreferred = preferred.indexOf(a.encoding)
+    var bPreferred = preferred.indexOf(b.encoding)
+
+    if (aPreferred === -1 && bPreferred === -1) {
+      // consider the original specifity/order
+      return (b.s - a.s) || (a.o - b.o) || (a.i - b.i)
+    }
+
+    if (aPreferred !== -1 && bPreferred !== -1) {
+      return aPreferred - bPreferred // consider the preferred order
+    }
+
+    return aPreferred === -1 ? 1 : -1 // preferred first
+  } : compareSpecs;
+
+  if (!provided) {
+    // sorted list of all encodings
+    return accepts
+      .filter(isQuality)
+      .sort(comparator)
+      .map(getFullEncoding);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getEncodingPriority(type, accepts, index);
+  });
+
+  // sorted list of accepted encodings
+  return priorities.filter(isQuality).sort(comparator).map(function getEncoding(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i);
+}
+
+/**
+ * Get full encoding string.
+ * @private
+ */
+
+function getFullEncoding(spec) {
+  return spec.encoding;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}

node_modules/negotiator/lib/language.js

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+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+var contentType = require('content-type');
+var parseAccept = require('./accept');
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredLanguages;
+module.exports.preferredLanguages = preferredLanguages;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+function parseAcceptLanguage(accept) {
+  var accepts = parseAccept(accept);
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var language = formatLanguage(accepts[i], i);
+    if (language) accepts[j++] = language;
+  }
+
+  accepts.length = j;
+  return accepts;
+}
+
+/**
+ * Format a parsed language for negotiation.
+ * @private
+ */
+
+function formatLanguage(parsed, i) {
+  if (!parsed.type) return null;
+
+  var hyphen = parsed.type.indexOf('-');
+  var prefix = hyphen === -1 ? parsed.type : parsed.type.slice(0, hyphen);
+  var suffix = hyphen === -1 ? undefined : parsed.type.slice(hyphen + 1);
+
+  return {
+    prefix: prefix,
+    suffix: suffix,
+    q: parsed.parameters.q ? parseFloat(parsed.parameters.q) : 1,
+    i: i,
+    full: parsed.type
+  };
+}
+
+/**
+ * Get the priority of a language.
+ * @private
+ */
+
+function getLanguagePriority(language, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(language, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the language.
+ * @private
+ */
+
+function specify(language, spec, index) {
+  var p = formatLanguage(contentType.parse(language), 0)
+  if (!p) return null;
+  var s = 0;
+  if(spec.full.toLowerCase() === p.full.toLowerCase()){
+    s |= 4;
+  } else if (spec.prefix.toLowerCase() === p.full.toLowerCase()) {
+    s |= 2;
+  } else if (spec.full.toLowerCase() === p.prefix.toLowerCase()) {
+    s |= 1;
+  } else if (spec.full !== '*' ) {
+    return null
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s
+  }
+};
+
+/**
+ * Get the preferred languages from an Accept-Language header.
+ * @public
+ */
+
+function preferredLanguages(accept, provided) {
+  // RFC 2616 sec 14.4: no header = *
+  var accepts = parseAcceptLanguage(accept === undefined ? '*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all languages
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullLanguage);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getLanguagePriority(type, accepts, index);
+  });
+
+  // sorted list of accepted languages
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getLanguage(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full language string.
+ * @private
+ */
+
+function getFullLanguage(spec) {
+  return spec.full;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}

node_modules/negotiator/lib/mediaType.js

@@ -0,0 +1,176 @@
+/**
+ * negotiator
+ * Copyright(c) 2012 Isaac Z. Schlueter
+ * Copyright(c) 2014 Federico Romero
+ * Copyright(c) 2014-2015 Douglas Christopher Wilson
+ * MIT Licensed
+ */
+
+'use strict';
+
+var contentType = require('content-type');
+var parseAcceptHeader = require('./accept');
+
+/**
+ * Module exports.
+ * @public
+ */
+
+module.exports = preferredMediaTypes;
+module.exports.preferredMediaTypes = preferredMediaTypes;
+
+/**
+ * Module variables.
+ * @private
+ */
+
+function parseAccept(accept) {
+  var accepts = parseAcceptHeader(accept);
+
+  for (var i = 0, j = 0; i < accepts.length; i++) {
+    var mediaType = formatMediaType(accepts[i], i);
+    if (mediaType) accepts[j++] = mediaType;
+  }
+
+  accepts.length = j;
+  return accepts;
+}
+
+/**
+ * Format a parsed content type for negotiation.
+ * @private
+ */
+
+function formatMediaType(parsed, i) {
+  var slash = parsed.type.indexOf('/');
+  if (slash === -1) return null;
+
+  var q = parsed.parameters.q ? parseFloat(parsed.parameters.q) : 1;
+
+  delete parsed.parameters.q;
+
+  return {
+    type: parsed.type.slice(0, slash),
+    subtype: parsed.type.slice(slash + 1),
+    params: parsed.parameters,
+    q: q,
+    i: i
+  };
+}
+
+/**
+ * Get the priority of a media type.
+ * @private
+ */
+
+function getMediaTypePriority(type, accepted, index) {
+  var priority = {o: -1, q: 0, s: 0};
+
+  for (var i = 0; i < accepted.length; i++) {
+    var spec = specify(type, accepted[i], index);
+
+    if (spec && (priority.s - spec.s || priority.q - spec.q || priority.o - spec.o) < 0) {
+      priority = spec;
+    }
+  }
+
+  return priority;
+}
+
+/**
+ * Get the specificity of the media type.
+ * @private
+ */
+
+function specify(type, spec, index) {
+  var p = formatMediaType(contentType.parse(type), 0);
+  var s = 0;
+
+  if (!p) {
+    return null;
+  }
+
+  if(spec.type.toLowerCase() == p.type.toLowerCase()) {
+    s |= 4
+  } else if(spec.type != '*') {
+    return null;
+  }
+
+  if(spec.subtype.toLowerCase() == p.subtype.toLowerCase()) {
+    s |= 2
+  } else if(spec.subtype != '*') {
+    return null;
+  }
+
+  var keys = Object.keys(spec.params);
+  if (keys.length > 0) {
+    if (keys.every(function (k) {
+      return spec.params[k] == '*' || (spec.params[k] || '').toLowerCase() == (p.params[k] || '').toLowerCase();
+    })) {
+      s |= 1
+    } else {
+      return null
+    }
+  }
+
+  return {
+    i: index,
+    o: spec.i,
+    q: spec.q,
+    s: s,
+  }
+}
+
+/**
+ * Get the preferred media types from an Accept header.
+ * @public
+ */
+
+function preferredMediaTypes(accept, provided) {
+  // RFC 2616 sec 14.2: no header = */*
+  var accepts = parseAccept(accept === undefined ? '*/*' : accept || '');
+
+  if (!provided) {
+    // sorted list of all types
+    return accepts
+      .filter(isQuality)
+      .sort(compareSpecs)
+      .map(getFullType);
+  }
+
+  var priorities = provided.map(function getPriority(type, index) {
+    return getMediaTypePriority(type, accepts, index);
+  });
+
+  // sorted list of accepted types
+  return priorities.filter(isQuality).sort(compareSpecs).map(function getType(priority) {
+    return provided[priorities.indexOf(priority)];
+  });
+}
+
+/**
+ * Compare two specs.
+ * @private
+ */
+
+function compareSpecs(a, b) {
+  return (b.q - a.q) || (b.s - a.s) || (a.o - b.o) || (a.i - b.i) || 0;
+}
+
+/**
+ * Get full type string.
+ * @private
+ */
+
+function getFullType(spec) {
+  return spec.type + '/' + spec.subtype;
+}
+
+/**
+ * Check if a spec has any quality.
+ * @private
+ */
+
+function isQuality(spec) {
+  return spec.q > 0;
+}