Last active
August 29, 2015 14:06
-
-
Save gilly3/8653b5cf9622b598625e to your computer and use it in GitHub Desktop.
URL parsing utilities - Provides a shim for IE, where window.URL has a different meaning than in Chrome and Firefox
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| function _URL(url) { | |
| // Naive URL parser. Assumes the input URL is valid. | |
| this.hash = ""; | |
| this.search = ""; | |
| this.pathname = ""; | |
| this.port = ""; | |
| this.hostname = ""; | |
| this.host = ""; | |
| this.password = ""; | |
| this.username = ""; | |
| this.protocol = ""; | |
| this.origin = ""; | |
| this.href = url; | |
| var hashIdx = url.indexOf("#"); | |
| if (hashIdx > -1) { | |
| this.hash = url.slice(hashIdx); | |
| url = url.slice(0, hashIdx); | |
| } | |
| var searchIdx = url.indexOf("?"); | |
| if (searchIdx > -1) { | |
| this.search = url.slice(searchIdx); | |
| url = url.slice(0, searchIdx); | |
| } | |
| var protoIdx = url.indexOf("://") + 1; | |
| this.protocol = url.slice(0, protoIdx); | |
| url = url.slice(protoIdx + 2); | |
| var slashIdx = url.indexOf("/"); | |
| if (slashIdx > -1) { | |
| this.host = url.slice(0, slashIdx); | |
| this.pathname = url.slice(slashIdx); | |
| } | |
| else { | |
| this.host = url; | |
| } | |
| var userIdx = this.host.indexOf("@"); | |
| if (userIdx > -1) { | |
| this.username = this.host.slice(0, userIdx); | |
| this.host = this.host.slice(userIdx + 1); | |
| } | |
| var pwdIdx = this.username.indexOf(":"); | |
| if (pwdIdx > -1) { | |
| this.password = this.username.slice(pwdIdx + 1); | |
| this.username = this.username.slice(0, pwdIdx); | |
| } | |
| var portIdx = this.host.indexOf(":"); | |
| if (portIdx > -1) { | |
| this.hostname = this.host.slice(0, portIdx); | |
| this.port = this.host.slice(portIdx + 1); | |
| } | |
| else { | |
| this.hostname = this.host; | |
| } | |
| this.origin = this.protocol + "//" + this.host; | |
| } | |
| function parseUrlArgs(argString) { | |
| // Decode key value pairs in url.search or url.hash into an Object | |
| // Values are all strings. | |
| // Values for duplicate keys are wrapped in arrays. | |
| // Values for keys with '=' but no value (eg, &key=&) are empty strings. | |
| // Values for keys without '=' (eg, &key&) are null. | |
| // This function expects a URI Encoded string including the leading ? or #. | |
| // So standard strings can be passed, eg, location.search, URI.hash, etc. | |
| var args = {}; | |
| argString.slice(1).split("&").forEach(function (arg) { | |
| if (!arg) return; | |
| var parts = arg.split("="); | |
| var key = decodeURLComponent(parts[0]); | |
| var val = parts.length > 1 ? decodeURLComponent(parts[1]) : null; | |
| if (key in args) { | |
| if (!(args[key] instanceof array)) { | |
| args[key] = [args[key]]; | |
| } | |
| args[key].push(val); | |
| } | |
| else { | |
| args[key] = val; | |
| } | |
| }); | |
| return args; | |
| } | |
| function decodeURLComponent(s) { | |
| // interpret + in URLs as space | |
| return decodeURIComponent(s.replace(/\+/g, " ")); | |
| } | |
| function encodeURLComponent(s) { | |
| // encode space in URLs with + | |
| return encodeURIComponent(s).replace(/%20/g, "+"); | |
| } | |
| // Using typeof because window.URL is defined in IE10+, but as an object, not a function | |
| var URL = typeof window.URL === "function" ? window.URL : _URL; |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment