opds-web-client
Version:
152 lines (151 loc) • 6.02 kB
JavaScript
;
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
Object.defineProperty(exports, "__esModule", { value: true });
var opds_feed_parser_1 = require("opds-feed-parser");
var OpenSearchDescriptionParser_1 = require("./OpenSearchDescriptionParser");
var Cookie = require("js-cookie");
require("isomorphic-fetch");
/** Handles requests to OPDS servers. */
var DataFetcher = /** @class */ (function () {
function DataFetcher(config) {
if (config === void 0) { config = {}; }
this.proxyUrl = config.proxyUrl;
this.adapter = config.adapter;
this.authKey = "authCredentials";
}
DataFetcher.prototype.fetchOPDSData = function (url) {
var _this = this;
var parser = new opds_feed_parser_1.default();
if (!this.adapter) {
return Promise.reject({
status: null,
response: "No adapter has been configured in DataFetcher.",
url: url
});
}
return new Promise(function (resolve, reject) {
_this.fetch(url)
.then(function (response) {
response
.text()
.then(function (text) {
if (_this.isErrorCode(response.status)) {
reject({
status: response.status,
response: text,
url: url,
headers: response.headers
});
}
parser
.parse(text)
.then(function (parsedData) {
var _a;
resolve((_a = _this.adapter) === null || _a === void 0 ? void 0 : _a.call(_this, parsedData, url));
})
.catch(function (err) {
reject({
status: null,
response: "Failed to parse OPDS data",
url: url
});
});
})
.catch(function (error) {
reject({
status: response.status,
response: error.message,
url: url,
headers: response.headers
});
});
})
.catch(function (error) { return reject(error); });
});
};
DataFetcher.prototype.fetchSearchDescriptionData = function (searchDescriptionUrl) {
var _this = this;
var parser = new OpenSearchDescriptionParser_1.default();
return new Promise(function (resolve, reject) {
_this.fetch(searchDescriptionUrl)
.then(function (response) {
response.text().then(function (text) {
if (_this.isErrorCode(response.status)) {
reject({
status: response.status,
response: text,
url: searchDescriptionUrl
});
}
parser
.parse(text, searchDescriptionUrl)
.then(function (openSearchDescription) {
resolve(openSearchDescription);
})
.catch(function (err) {
reject({
status: null,
response: "Failed to parse OPDS data",
url: searchDescriptionUrl
});
});
});
})
.catch(reject);
});
};
DataFetcher.prototype.fetch = function (url, options) {
if (options === void 0) { options = {}; }
options = Object.assign({ credentials: "same-origin" }, options);
if (this.proxyUrl) {
var formData = new window.FormData();
formData.append("url", url);
Object.assign(options, {
method: "POST",
body: formData
});
url = this.proxyUrl;
}
options["headers"] = this.prepareAuthHeaders(options["headers"]);
return fetch(url, options);
};
DataFetcher.prototype.setAuthCredentials = function (credentials) {
if (credentials) {
Cookie.set(this.authKey, JSON.stringify(credentials));
}
};
DataFetcher.prototype.getAuthCredentials = function () {
var credentials = Cookie.get(this.authKey);
if (credentials) {
return JSON.parse(credentials);
}
};
DataFetcher.prototype.clearAuthCredentials = function () {
Cookie.remove(this.authKey);
};
DataFetcher.prototype.prepareAuthHeaders = function (headers) {
var _a;
if (headers === void 0) { headers = {}; }
var credentials = this.getAuthCredentials();
return __assign({ Authorization: (_a = credentials === null || credentials === void 0 ? void 0 : credentials.credentials) !== null && _a !== void 0 ? _a : "",
// server needs to know request came from JS in order to omit
// 'Www-Authenticate: Basic' header, which triggers browser's
// ugly basic auth popup
"X-Requested-With": "XMLHttpRequest" }, headers);
};
DataFetcher.prototype.isErrorCode = function (status) {
return status < 200 || status >= 400;
};
return DataFetcher;
}());
exports.default = DataFetcher;