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-rw-r--r--middleware/node_modules/mime/mime.js108
1 files changed, 108 insertions, 0 deletions
diff --git a/middleware/node_modules/mime/mime.js b/middleware/node_modules/mime/mime.js
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+++ b/middleware/node_modules/mime/mime.js
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+var path = require('path');
+var fs = require('fs');
+
+function Mime() {
+ // Map of extension -> mime type
+ this.types = Object.create(null);
+
+ // Map of mime type -> extension
+ this.extensions = Object.create(null);
+}
+
+/**
+ * Define mimetype -> extension mappings. Each key is a mime-type that maps
+ * to an array of extensions associated with the type. The first extension is
+ * used as the default extension for the type.
+ *
+ * e.g. mime.define({'audio/ogg', ['oga', 'ogg', 'spx']});
+ *
+ * @param map (Object) type definitions
+ */
+Mime.prototype.define = function (map) {
+ for (var type in map) {
+ var exts = map[type];
+ for (var i = 0; i < exts.length; i++) {
+ if (process.env.DEBUG_MIME && this.types[exts[i]]) {
+ console.warn((this._loading || "define()").replace(/.*\//, ''), 'changes "' + exts[i] + '" extension type from ' +
+ this.types[exts[i]] + ' to ' + type);
+ }
+
+ this.types[exts[i]] = type;
+ }
+
+ // Default extension is the first one we encounter
+ if (!this.extensions[type]) {
+ this.extensions[type] = exts[0];
+ }
+ }
+};
+
+/**
+ * Load an Apache2-style ".types" file
+ *
+ * This may be called multiple times (it's expected). Where files declare
+ * overlapping types/extensions, the last file wins.
+ *
+ * @param file (String) path of file to load.
+ */
+Mime.prototype.load = function(file) {
+ this._loading = file;
+ // Read file and split into lines
+ var map = {},
+ content = fs.readFileSync(file, 'ascii'),
+ lines = content.split(/[\r\n]+/);
+
+ lines.forEach(function(line) {
+ // Clean up whitespace/comments, and split into fields
+ var fields = line.replace(/\s*#.*|^\s*|\s*$/g, '').split(/\s+/);
+ map[fields.shift()] = fields;
+ });
+
+ this.define(map);
+
+ this._loading = null;
+};
+
+/**
+ * Lookup a mime type based on extension
+ */
+Mime.prototype.lookup = function(path, fallback) {
+ var ext = path.replace(/^.*[\.\/\\]/, '').toLowerCase();
+
+ return this.types[ext] || fallback || this.default_type;
+};
+
+/**
+ * Return file extension associated with a mime type
+ */
+Mime.prototype.extension = function(mimeType) {
+ var type = mimeType.match(/^\s*([^;\s]*)(?:;|\s|$)/)[1].toLowerCase();
+ return this.extensions[type];
+};
+
+// Default instance
+var mime = new Mime();
+
+// Define built-in types
+mime.define(require('./types.json'));
+
+// Default type
+mime.default_type = mime.lookup('bin');
+
+//
+// Additional API specific to the default instance
+//
+
+mime.Mime = Mime;
+
+/**
+ * Lookup a charset based on mime type.
+ */
+mime.charsets = {
+ lookup: function(mimeType, fallback) {
+ // Assume text types are utf8
+ return (/^text\/|^application\/(javascript|json)/).test(mimeType) ? 'UTF-8' : fallback;
+ }
+};
+
+module.exports = mime;