298 lines
11 KiB
JavaScript
298 lines
11 KiB
JavaScript
// @flow
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import { NO_AUTH, X_LBRY_AUTH_TOKEN } from 'constants/token';
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require('proxy-polyfill');
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const CHECK_DAEMON_STARTED_TRY_NUMBER = 200;
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//
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// Basic LBRY sdk connection config
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// Offers a proxy to call LBRY sdk methods
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//
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const Lbry = {
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isConnected: false,
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connectPromise: null,
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daemonConnectionString: 'http://localhost:5279',
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alternateConnectionString: '',
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methodsUsingAlternateConnectionString: [],
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apiRequestHeaders: { 'Content-Type': 'application/json-rpc' },
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// Allow overriding daemon connection string (e.g. to `/api/proxy` for lbryweb)
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setDaemonConnectionString: (value: string) => {
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Lbry.daemonConnectionString = value;
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},
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setApiHeader: (key: string, value: string) => {
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Lbry.apiRequestHeaders = Object.assign(Lbry.apiRequestHeaders, { [key]: value });
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},
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unsetApiHeader: (key) => {
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Object.keys(Lbry.apiRequestHeaders).includes(key) && delete Lbry.apiRequestHeaders[key];
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},
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// Allow overriding Lbry methods
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overrides: {},
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setOverride: (methodName, newMethod) => {
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Lbry.overrides[methodName] = newMethod;
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},
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getApiRequestHeaders: () => Lbry.apiRequestHeaders,
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// Returns a human readable media type based on the content type or extension of a file that is returned by the sdk
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getMediaType: (contentType: ?string, fileName: ?string) => {
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if (fileName) {
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const formats = [
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[/\.(mp4|m4v|webm|flv|f4v|ogv)$/i, 'video'],
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[/\.(mp3|m4a|aac|wav|flac|ogg|opus)$/i, 'audio'],
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[/\.(jpeg|jpg|png|gif|svg|webp)$/i, 'image'],
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[/\.(h|go|ja|java|js|jsx|c|cpp|cs|css|rb|scss|sh|php|py)$/i, 'script'],
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[/\.(html|json|csv|txt|log|md|markdown|docx|pdf|xml|yml|yaml)$/i, 'document'],
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[/\.(pdf|odf|doc|docx|epub|org|rtf)$/i, 'e-book'],
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[/\.(stl|obj|fbx|gcode)$/i, '3D-file'],
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[/\.(cbr|cbt|cbz)$/i, 'comic-book'],
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[/\.(lbry)$/i, 'application'],
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];
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const res = formats.reduce((ret, testpair) => {
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switch (testpair[0].test(ret)) {
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case true:
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return testpair[1];
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default:
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return ret;
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}
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}, fileName);
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return res === fileName ? 'unknown' : res;
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} else if (contentType) {
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// $FlowFixMe
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return /^[^/]+/.exec(contentType)[0];
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}
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return 'unknown';
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},
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//
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// Lbry SDK Methods
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// https://lbry.tech/api/sdk
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//
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status: (params = {}) => daemonCallWithResult('status', params),
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stop: () => daemonCallWithResult('stop', {}),
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version: () => daemonCallWithResult('version', {}),
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// Claim fetching and manipulation
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resolve: (params) => daemonCallWithResult('resolve', params, searchRequiresAuth),
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get: (params) => daemonCallWithResult('get', params),
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claim_search: (params) => daemonCallWithResult('claim_search', params, searchRequiresAuth),
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claim_list: (params) => daemonCallWithResult('claim_list', params),
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channel_create: (params) => daemonCallWithResult('channel_create', params),
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channel_update: (params) => daemonCallWithResult('channel_update', params),
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channel_import: (params) => daemonCallWithResult('channel_import', params),
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channel_list: (params) => daemonCallWithResult('channel_list', params),
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stream_abandon: (params) => daemonCallWithResult('stream_abandon', params),
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stream_list: (params) => daemonCallWithResult('stream_list', params),
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channel_abandon: (params) => daemonCallWithResult('channel_abandon', params),
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channel_sign: (params) => daemonCallWithResult('channel_sign', params),
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support_create: (params) => daemonCallWithResult('support_create', params),
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support_list: (params) => daemonCallWithResult('support_list', params),
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stream_repost: (params) => daemonCallWithResult('stream_repost', params),
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collection_resolve: (params) => daemonCallWithResult('collection_resolve', params),
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collection_list: (params) => daemonCallWithResult('collection_list', params),
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collection_create: (params) => daemonCallWithResult('collection_create', params),
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collection_update: (params) => daemonCallWithResult('collection_update', params),
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// File fetching and manipulation
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file_list: (params = {}) => daemonCallWithResult('file_list', params),
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file_delete: (params = {}) => daemonCallWithResult('file_delete', params),
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file_set_status: (params = {}) => daemonCallWithResult('file_set_status', params),
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blob_delete: (params = {}) => daemonCallWithResult('blob_delete', params),
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blob_list: (params = {}) => daemonCallWithResult('blob_list', params),
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file_reflect: (params = {}) => daemonCallWithResult('file_reflect', params),
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// Wallet utilities
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wallet_balance: (params = {}) => daemonCallWithResult('wallet_balance', params),
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wallet_decrypt: () => daemonCallWithResult('wallet_decrypt', {}),
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wallet_encrypt: (params = {}) => daemonCallWithResult('wallet_encrypt', params),
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wallet_unlock: (params = {}) => daemonCallWithResult('wallet_unlock', params),
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wallet_list: (params = {}) => daemonCallWithResult('wallet_list', params),
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wallet_send: (params = {}) => daemonCallWithResult('wallet_send', params),
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wallet_status: (params = {}) => daemonCallWithResult('wallet_status', params),
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address_is_mine: (params = {}) => daemonCallWithResult('address_is_mine', params),
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address_unused: (params = {}) => daemonCallWithResult('address_unused', params),
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address_list: (params = {}) => daemonCallWithResult('address_list', params),
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transaction_list: (params = {}) => daemonCallWithResult('transaction_list', params),
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utxo_release: (params = {}) => daemonCallWithResult('utxo_release', params),
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support_abandon: (params = {}) => daemonCallWithResult('support_abandon', params),
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purchase_list: (params = {}) => daemonCallWithResult('purchase_list', params),
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txo_list: (params = {}) => daemonCallWithResult('txo_list', params),
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account_list: (params = {}) => daemonCallWithResult('account_list', params),
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account_set: (params = {}) => daemonCallWithResult('account_set', params),
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sync_hash: (params = {}) => daemonCallWithResult('sync_hash', params),
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sync_apply: (params = {}) => daemonCallWithResult('sync_apply', params),
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// Preferences
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preference_get: (params = {}) => daemonCallWithResult('preference_get', params),
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preference_set: (params = {}) => daemonCallWithResult('preference_set', params),
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// Comments
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comment_list: (params = {}) => daemonCallWithResult('comment_list', params),
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comment_create: (params = {}) => daemonCallWithResult('comment_create', params),
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comment_hide: (params = {}) => daemonCallWithResult('comment_hide', params),
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comment_abandon: (params = {}) => daemonCallWithResult('comment_abandon', params),
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comment_update: (params = {}) => daemonCallWithResult('comment_update', params),
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// Connect to the sdk
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connect: () => {
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if (Lbry.connectPromise === null) {
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// $FlowFixMe
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Lbry.connectPromise = new Promise((resolve, reject) => {
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let tryNum = 0;
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// Check every half second to see if the daemon is accepting connections
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function checkDaemonStarted() {
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tryNum += 1;
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Lbry.status()
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.then(resolve)
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.catch(() => {
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if (tryNum <= CHECK_DAEMON_STARTED_TRY_NUMBER) {
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setTimeout(checkDaemonStarted, tryNum < 50 ? 400 : 1000);
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} else {
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reject(new Error('Unable to connect to LBRY'));
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}
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});
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}
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checkDaemonStarted();
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});
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}
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// Flow thinks this could be empty, but it will always reuturn a promise
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// $FlowFixMe
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return Lbry.connectPromise;
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},
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publish: (params = {}) =>
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new Promise((resolve, reject) => {
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if (Lbry.overrides.publish) {
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Lbry.overrides.publish(params).then(resolve, reject);
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} else {
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apiCall('publish', params, resolve, reject);
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}
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}),
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};
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function checkAndParse(response: Response, method: string) {
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if (!response.ok) {
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// prettier-ignore
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switch (response.status) {
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case 504: // Gateway timeout
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case 524: // Cloudflare: a timeout occurred
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switch (method) {
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case 'publish':
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throw Error(__('[Publish]: Your action timed out, but may have been completed. Refresh and check your Uploads or Wallet page to confirm after a few minutes.'));
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default:
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throw Error(`${method}: ${response.statusText} (${response.status})`);
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}
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default:
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throw Error(`${method}: ${response.statusText} (${response.status})`);
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}
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}
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if (response.status >= 200 && response.status < 300) {
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return response.json();
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}
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return response
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.json()
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.then((json) => {
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if (json.error) {
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const errorMessage = typeof json.error === 'object' ? json.error.message : json.error;
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return Promise.reject(new Error(errorMessage));
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} else {
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return Promise.reject(new Error('Protocol error with unknown response signature'));
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}
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})
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.catch(() => {
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// If not parsable, throw the initial response rather than letting
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// the json failure ("unexpected token at..") pass through.
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return Promise.reject(new Error(`${method}: ${response.statusText} (${response.status}, JSON)`));
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});
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}
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export function apiCall(method: string, params: ?{}, resolve: Function, reject: Function) {
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let apiRequestHeaders = Lbry.apiRequestHeaders;
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if (params && params[NO_AUTH]) {
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apiRequestHeaders = Object.assign({}, Lbry.apiRequestHeaders);
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delete apiRequestHeaders[X_LBRY_AUTH_TOKEN];
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delete params[NO_AUTH];
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}
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const counter = new Date().getTime();
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const options = {
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method: 'POST',
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headers: apiRequestHeaders,
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body: JSON.stringify({
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jsonrpc: '2.0',
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method,
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params,
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id: counter,
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}),
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};
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const connectionString = Lbry.methodsUsingAlternateConnectionString.includes(method)
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? Lbry.alternateConnectionString
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: Lbry.daemonConnectionString;
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return fetch(connectionString + '?m=' + method, options)
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.then((response) => checkAndParse(response, method))
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.then((response) => {
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const error = response.error || (response.result && response.result.error);
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return error ? reject(error) : resolve(response.result);
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})
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.catch(reject);
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}
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function daemonCallWithResult(
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name: string,
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params: ?{} = {},
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checkAuthNeededFn: ?(?{}) => boolean = undefined
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): Promise<any> {
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return new Promise((resolve, reject) => {
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const skipAuth = checkAuthNeededFn ? !checkAuthNeededFn(params) : false;
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apiCall(
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name,
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skipAuth ? { ...params, [NO_AUTH]: true } : params,
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(result) => {
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resolve(result);
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},
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reject
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);
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});
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}
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// This is only for a fallback
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// If there is a Lbry method that is being called by an app, it should be added to /flow-typed/Lbry.js
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const lbryProxy = new Proxy(Lbry, {
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get(target: LbryTypes, name: string) {
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if (name in target) {
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return target[name];
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}
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return (params = {}) =>
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new Promise((resolve, reject) => {
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apiCall(name, params, resolve, reject);
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});
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},
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});
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/**
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* daemonCallWithResult hook that checks if the search option requires the
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* auth-token. This hook works for 'resolve' and 'claim_search'.
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*
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* @param options
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* @returns {boolean}
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*/
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function searchRequiresAuth(options: any) {
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const KEYS_REQUIRE_AUTH = ['include_purchase_receipt', 'include_is_my_output'];
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return options && KEYS_REQUIRE_AUTH.some((k) => options.hasOwnProperty(k));
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}
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export default lbryProxy;
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