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Diffstat (limited to 'utils/lib/url.js')
| -rwxr-xr-x | utils/lib/url.js | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/utils/lib/url.js b/utils/lib/url.js deleted file mode 100755 index 897ebc1..0000000 --- a/utils/lib/url.js +++ /dev/null @@ -1,323 +0,0 @@ - -/**** keys - members of a parsed URI object. -*/ -exports.keys = [ - "url", - "protocol", - "authorityRoot", - "authority", - "userInfo", - "user", - "password", - "domain", - "domains", - "port", - "path", - "root", - "directory", - "directories", - "file", - "query", - "anchor" -]; - -/**** expressionKeys - members of a parsed URI object that you get - from evaluting the strict regular expression. -*/ -exports.expressionKeys = [ - "url", - "protocol", - "authorityRoot", - "authority", - "userInfo", - "user", - "password", - "domain", - "port", - "path", - "root", - "directory", - "file", - "query", - "anchor" -]; - -/**** strictExpression -*/ -exports.strictExpression = new RegExp( /* url */ - "^" + - "(?:" + - "([^:/?#]+):" + /* protocol */ - ")?" + - "(?:" + - "(//)" + /* authorityRoot */ - "(" + /* authority */ - "(?:" + - "(" + /* userInfo */ - "([^:@]*)" + /* user */ - ":?" + - "([^:@]*)" + /* password */ - ")?" + - "@" + - ")?" + - "([^:/?#]*)" + /* domain */ - "(?::(\\d*))?" + /* port */ - ")" + - ")?" + - "(" + /* path */ - "(/?)" + /* root */ - "((?:[^?#/]*/)*)" + - "([^?#]*)" + /* file */ - ")" + - "(?:\\?([^#]*))?" + /* query */ - "(?:#(.*))?" /*anchor */ -); - -/**** Parser - returns a URI parser function given - a regular expression that renders - `expressionKeys` and returns an `Object` - mapping all `keys` to values. -*/ -exports.Parser = function (expression) { - return function (url) { - if (typeof url == "undefined") - throw new Error("HttpError: URL is undefined"); - if (typeof url != "string") return new Object(url); - - var items = {}; - var parts = expression.exec(url); - - for (var i = 0; i < parts.length; i++) { - items[exports.expressionKeys[i]] = parts[i] ? parts[i] : ""; - } - - items.root = (items.root || items.authorityRoot) ? '/' : ''; - - items.directories = items.directory.split("/"); - if (items.directories[items.directories.length - 1] == "") { - items.directories.pop(); - } - - /* normalize */ - var directories = []; - for (var i = 0; i < items.directories.length; i++) { - var directory = items.directories[i]; - if (directory == '.') { - } else if (directory == '..') { - if (directories.length && directories[directories.length - 1] != '..') - directories.pop(); - else - directories.push('..'); - } else { - directories.push(directory); - } - } - items.directories = directories; - - items.domains = items.domain.split("."); - - return items; - }; -}; - -/**** parse - a strict URI parser. -*/ -exports.parse = exports.Parser(exports.strictExpression); - -/**** format - accepts a parsed URI object and returns - the corresponding string. -*/ -exports.format = function (object) { - if (typeof(object) == 'undefined') - throw new Error("UrlError: URL undefined for urls#format"); - if (object instanceof String || typeof(object) == 'string') - return object; - var domain = - object.domains ? - object.domains.join(".") : - object.domain; - var userInfo = ( - object.user || - object.password - ) ? - ( - (object.user || "") + - (object.password ? ":" + object.password : "") - ) : - object.userInfo; - var authority = ( - userInfo || - domain || - object.port - ) ? ( - (userInfo ? userInfo + "@" : "") + - (domain || "") + - (object.port ? ":" + object.port : "") - ) : - object.authority; - var directory = - object.directories ? - object.directories.join("/") : - object.directory; - var path = - directory || object.file ? - ( - (directory ? directory + "/" : "") + - (object.file || "") - ) : - object.path; - return ( - (object.protocol ? object.protocol + ":" : "") + - (authority ? "//" + authority : "") + - (object.root || (authority && path) ? "/" : "") + - (path ? path : "") + - (object.query ? "?" + object.query : "") + - (object.anchor ? "#" + object.anchor : "") - ) || object.url || ""; -}; - -/**** resolveObject - returns an object representing a URL resolved from - a relative location and a source location. -*/ -exports.resolveObject = function (source, relative) { - if (!source) - return relative; - - source = exports.parse(source); - relative = exports.parse(relative); - - if (relative.url == "") - return source; - - delete source.url; - delete source.authority; - delete source.domain; - delete source.userInfo; - delete source.path; - delete source.directory; - - if ( - relative.protocol && relative.protocol != source.protocol || - relative.authority && relative.authority != source.authority - ) { - source = relative; - } else { - if (relative.root) { - source.directories = relative.directories; - } else { - - var directories = relative.directories; - for (var i = 0; i < directories.length; i++) { - var directory = directories[i]; - if (directory == ".") { - } else if (directory == "..") { - if (source.directories.length) { - source.directories.pop(); - } else { - source.directories.push('..'); - } - } else { - source.directories.push(directory); - } - } - - if (relative.file == ".") { - relative.file = ""; - } else if (relative.file == "..") { - source.directories.pop(); - relative.file = ""; - } - } - } - - if (relative.root) - source.root = relative.root; - if (relative.protcol) - source.protocol = relative.protocol; - if (!(!relative.path && relative.anchor)) - source.file = relative.file; - source.query = relative.query; - source.anchor = relative.anchor; - - return source; -}; - -/**** relativeObject - returns an object representing a relative URL to - a given target URL from a source URL. -*/ -exports.relativeObject = function (source, target) { - target = exports.parse(target); - source = exports.parse(source); - - delete target.url; - - if ( - target.protocol == source.protocol && - target.authority == source.authority - ) { - delete target.protocol; - delete target.authority; - delete target.userInfo; - delete target.user; - delete target.password; - delete target.domain; - delete target.domains; - delete target.port; - if ( - !!target.root == !!source.root && !( - target.root && - target.directories[0] != source.directories[0] - ) - ) { - delete target.path; - delete target.root; - delete target.directory; - while ( - source.directories.length && - target.directories.length && - target.directories[0] == source.directories[0] - ) { - target.directories.shift(); - source.directories.shift(); - } - while (source.directories.length) { - source.directories.shift(); - target.directories.unshift('..'); - } - - if (!target.root && !target.directories.length && !target.file && source.file) - target.directories.push('.'); - - if (source.file == target.file) - delete target.file; - if (source.query == target.query) - delete target.query; - if (source.anchor == target.anchor) - delete target.anchor; - } - } - - return target; -}; - -/**** resolve - returns a URL resovled to a relative URL from a source URL. -*/ -exports.resolve = function (source, relative) { - return exports.format(exports.resolveObject(source, relative)); -}; - -/**** relative - returns a relative URL to a target from a source. -*/ -exports.relative = function (source, target) { - return exports.format(exports.relativeObject(source, target)); -}; - |