hurt
Version:
HTTP and SPA routing using RFC 6570 URI templates
167 lines (138 loc) • 14.1 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.mixin = undefined;
var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
var _trie = require('./trie');
var _handler2 = require('./handler');
var _handler3 = _interopRequireDefault(_handler2);
var _uriTemplates = require('uri-templates');
var _uriTemplates2 = _interopRequireDefault(_uriTemplates);
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
function templatePrefix(template) {
var index = template.indexOf('{');
var prefix = index < 0 ? template : template.substr(0, index);
return prefix;
}
function templateParams(template) {
var t = (0, _uriTemplates2.default)(template);
return function (url) {
var match = t.fromUri(url);
return match;
};
}
function regExpPrefix(regexp) {
var source = regexp.source.replace(/(^\^|\$$)/g, '');
var match = /(^|[^\\])([[({.]|\\[dDsSwWxu])/.exec(source);
var prefix = match ? source.substr(0, match.index + match[1].length) : source;
return prefix.replace(/\\([/\\().*\[\]])/g, '$1');
}
function regExpParams(regexp) {
return function (url) {
var match = regexp.exec(url);
return match && match[0] === url && match;
};
}
function routeHandler(params, fn) {
return function (req) {
for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
var next = args.pop();
var match = params(req.url);
if (match) {
req.params = _extends({}, req.params, match);
fn.call.apply(fn, [this, req].concat(args, [function (err) {
if (!err) {
req.handled = true;
}
next(err);
}]));
} else {
next();
}
};
}
function mixin() {
var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
_ref$base = _ref.base,
_base = _ref$base === undefined ? '' : _ref$base;
var EMPTY = {};
var tries = [EMPTY];
var _notfound = [];
var handle = (0, _handler3.default)(_notfound);
return {
post: [function (req) {
for (var _len2 = arguments.length, args = Array(_len2 > 1 ? _len2 - 1 : 0), _key2 = 1; _key2 < _len2; _key2++) {
args[_key2 - 1] = arguments[_key2];
}
if (!req.handled) {
handle.call.apply(handle, [this, req].concat(args));
} else {
var next = args[args.length - 1];
next();
}
}],
base: function base(url) {
if (typeof url === 'string') {
_base = url;
return this;
}
return _base;
},
use: function use(options) {
for (var _len3 = arguments.length, stack = Array(_len3 > 1 ? _len3 - 1 : 0), _key3 = 1; _key3 < _len3; _key3++) {
stack[_key3 - 1] = arguments[_key3];
}
var url = void 0;
var prefix = void 0;
var params = void 0;
if (typeof options === 'string' || options instanceof RegExp) {
url = options;
options = { url: url };
} else {
url = options.url;
}
if (typeof url === 'string') {
prefix = templatePrefix(url);
params = templateParams(url);
} else if (url instanceof RegExp) {
prefix = regExpPrefix(url);
params = regExpParams(url);
} else {
if (tries[tries.length - 1] !== EMPTY) {
tries.push(EMPTY);
}
return this.use.apply(this, [options].concat(stack));
}
var route = this.route.apply(this, [options].concat(stack));
var trie = tries.pop();
var index = tries.length;
tries.push((0, _trie.add)(trie, prefix, [routeHandler(params, route)]));
if (trie === EMPTY) {
return this.use(function (req) {
var stack = (0, _trie.match)(tries[index], req.url, []);
for (var _len4 = arguments.length, args = Array(_len4 > 1 ? _len4 - 1 : 0), _key4 = 1; _key4 < _len4; _key4++) {
args[_key4 - 1] = arguments[_key4];
}
if (stack.length) {
var _handler;
(_handler = (0, _handler3.default)(stack)).call.apply(_handler, [this, req].concat(args));
} else {
var next = args[args.length - 1];
next();
}
});
} else {
return this;
}
},
notfound: function notfound() {
_notfound.push.apply(_notfound, arguments);
return this;
}
};
}
exports.mixin = mixin;
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template : template.substr(0, index);\n  return prefix;\n}\n\nfunction templateParams(template) {\n  const t = uriTemplate(template);\n  return url => {\n    const match = t.fromUri(url);\n    return match;\n  };\n}\n\nfunction regExpPrefix(regexp) {\n  const source = regexp.source.replace(/(^\\^|\\$$)/g, '');\n  const match = /(^|[^\\\\])([[({.]|\\\\[dDsSwWxu])/.exec(source);\n  const prefix = match ? source.substr(0, match.index + match[1].length) : source;\n  return prefix.replace(/\\\\([/\\\\().*\\[\\]])/g, '$1');\n}\n\nfunction regExpParams(regexp) {\n  return url => {\n    const match = regexp.exec(url);\n    return match && (match[0] === url) && match;\n  };\n}\n\nfunction routeHandler(params, fn) {\n  return function (req, ...args) {\n    const next = args.pop();\n    const match = params(req.url);\n\n    if (match) {\n      req.params = {\n        ...req.params,\n        ...match\n      };\n\n      fn.call(this, req, ...args, function (err) {\n        if (!err) {\n          req.handled = true;\n        }\n        next(err);\n      });\n    }\n    else {\n      next();\n    }\n  };\n}\n\nexport function mixin({ base = '' } = {}) {\n  const EMPTY = {};\n  const tries = [EMPTY];\n  const notfound = [];\n  const handle = handler(notfound);\n\n  return {\n    post: [\n      function (req, ...args) {\n        if (!req.handled) {\n          handle.call(this, req, ...args);\n        }\n        else {\n          const next = args[ args.length - 1 ];\n          next();\n        }\n      }\n    ],\n    base(url) {\n      if (typeof url === 'string') {\n        base = url;\n        return this;\n      }\n      return base;\n    },\n    use(options, ...stack) {\n      let url;\n      let prefix;\n      let params;\n\n      if (typeof options === 'string' || options instanceof RegExp) {\n        url = options;\n        options = { url };\n      }\n      else {\n        url = options.url;\n      }\n\n      if (typeof url === 'string') {\n        prefix = templatePrefix(url);\n        params = templateParams(url);\n      }\n      else if (url instanceof RegExp) {\n        prefix = regExpPrefix(url);\n        params = regExpParams(url);\n      }\n      else {\n        if (tries[tries.length - 1] !== EMPTY) {\n          tries.push(EMPTY);\n        }\n        return this.use(options, ...stack);\n      }\n\n      const route = this.route(options, ...stack)\n      const trie = tries.pop();\n      const index = tries.length;\n\n      tries.push(add(trie, prefix, [ routeHandler(params, route) ]));\n\n      if (trie === EMPTY) {\n        return this.use(function (req, ...args) {\n          const stack = match(tries[ index ], req.url, []);\n\n          if (stack.length) {\n            handler(stack).call(this, req, ...args);\n          }\n          else {\n            const next = args[ args.length - 1 ];\n            next();\n          }\n        });\n      }\n      else {\n        return this;\n      }\n    },\n    notfound(...stack) {\n      notfound.push(...stack);\n      return this;\n    }\n  };\n}\n"]}