opds-web-client
Version:
114 lines (113 loc) • 4.59 kB
JavaScript
;
var opds_feed_parser_1 = require("opds-feed-parser");
var OpenSearchDescriptionParser_1 = require("./OpenSearchDescriptionParser");
var Cookie = require("js-cookie");
require("isomorphic-fetch");
var DataFetcher = (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;
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) {
resolve(_this.adapter(parsedData, url));
}).catch(function (err) {
reject({
status: null,
response: "Failed to parse OPDS data",
url: url
});
});
});
}).catch(reject);
});
};
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) {
if (headers === void 0) { headers = {}; }
// server needs to know request came from JS in order to omit
// 'Www-Authenticate: Basic' header, which triggers browser's
// ugly basic auth popup
headers["X-Requested-With"] = "XMLHttpRequest";
var credentials = this.getAuthCredentials();
if (credentials) {
headers["Authorization"] = credentials.credentials;
}
return headers;
};
DataFetcher.prototype.isErrorCode = function (status) {
return status < 200 || status >= 400;
};
return DataFetcher;
}());
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = DataFetcher;