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lbry.js
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lbry.js
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const fetch = require('node-fetch');
const Lbry = {
isConnected: false,
connectPromise: null,
daemonConnectionString: 'http://localhost:5279',
alternateConnectionString: '',
methodsUsingAlternateConnectionString: [],
apiRequestHeaders: { 'Content-Type': 'application/json-rpc' },
// Allow overriding daemon connection string (e.g. to `/api/proxy` for lbryweb)
setDaemonConnectionString: value => {
Lbry.daemonConnectionString = value;
},
setApiHeader: (key, value) => {
Lbry.apiRequestHeaders = Object.assign(Lbry.apiRequestHeaders, { [key]: value });
},
unsetApiHeader: key => {
Object.keys(Lbry.apiRequestHeaders).includes(key) && delete Lbry.apiRequestHeaders['key'];
},
// Allow overriding Lbry methods
overrides: {},
setOverride: (methodName, newMethod) => {
Lbry.overrides[methodName] = newMethod;
},
getApiRequestHeaders: () => Lbry.apiRequestHeaders,
// Returns a human readable media type based on the content type or extension of a file that is returned by the sdk
getMediaType: (contentType, fileName) => {
if (fileName) {
const formats = [[/\.(mp4|m4v|webm|flv|f4v|ogv)$/i, 'video'], [/\.(mp3|m4a|aac|wav|flac|ogg|opus)$/i, 'audio'], [/\.(jpeg|jpg|png|gif|svg|webp)$/i, 'image'], [/\.(h|go|ja|java|js|jsx|c|cpp|cs|css|rb|scss|sh|php|py)$/i, 'script'], [/\.(html|json|csv|txt|log|md|markdown|docx|pdf|xml|yml|yaml)$/i, 'document'], [/\.(pdf|odf|doc|docx|epub|org|rtf)$/i, 'e-book'], [/\.(stl|obj|fbx|gcode)$/i, '3D-file'], [/\.(cbr|cbt|cbz)$/i, 'comic-book'], [/\.(lbry)$/i, 'application']];
const res = formats.reduce((ret, testpair) => {
switch (testpair[0].test(ret)) {
case true:
return testpair[1];
default:
return ret;
}
}, fileName);
return res === fileName ? 'unknown' : res;
} else if (contentType) {
// $FlowFixMe
return (/^[^/]+/.exec(contentType)[0]
);
}
return 'unknown';
},
//
// Lbry SDK Methods
// https://lbry.tech/api/sdk
//
status: (params = {}) => daemonCallWithResult('status', params),
stop: () => daemonCallWithResult('stop', {}),
version: () => daemonCallWithResult('version', {}),
// Claim fetching and manipulation
resolve: params => daemonCallWithResult('resolve', params),
get: params => daemonCallWithResult('get', params),
claim_search: params => daemonCallWithResult('claim_search', params),
claim_list: params => daemonCallWithResult('claim_list', params),
channel_create: params => daemonCallWithResult('channel_create', params),
channel_update: params => daemonCallWithResult('channel_update', params),
channel_import: params => daemonCallWithResult('channel_import', params),
channel_list: params => daemonCallWithResult('channel_list', params),
stream_abandon: params => daemonCallWithResult('stream_abandon', params),
stream_list: params => daemonCallWithResult('stream_list', params),
channel_abandon: params => daemonCallWithResult('channel_abandon', params),
channel_sign: params => daemonCallWithResult('channel_sign', params),
support_create: params => daemonCallWithResult('support_create', params),
support_list: params => daemonCallWithResult('support_list', params),
stream_repost: params => daemonCallWithResult('stream_repost', params),
// File fetching and manipulation
file_list: (params = {}) => daemonCallWithResult('file_list', params),
file_delete: (params = {}) => daemonCallWithResult('file_delete', params),
file_set_status: (params = {}) => daemonCallWithResult('file_set_status', params),
blob_delete: (params = {}) => daemonCallWithResult('blob_delete', params),
blob_list: (params = {}) => daemonCallWithResult('blob_list', params),
// Wallet utilities
wallet_balance: (params = {}) => daemonCallWithResult('wallet_balance', params),
wallet_decrypt: () => daemonCallWithResult('wallet_decrypt', {}),
wallet_encrypt: (params = {}) => daemonCallWithResult('wallet_encrypt', params),
wallet_unlock: (params = {}) => daemonCallWithResult('wallet_unlock', params),
wallet_list: (params = {}) => daemonCallWithResult('wallet_list', params),
wallet_send: (params = {}) => daemonCallWithResult('wallet_send', params),
wallet_status: (params = {}) => daemonCallWithResult('wallet_status', params),
address_is_mine: (params = {}) => daemonCallWithResult('address_is_mine', params),
address_unused: (params = {}) => daemonCallWithResult('address_unused', params),
address_list: (params = {}) => daemonCallWithResult('address_list', params),
transaction_list: (params = {}) => daemonCallWithResult('transaction_list', params),
utxo_release: (params = {}) => daemonCallWithResult('utxo_release', params),
support_abandon: (params = {}) => daemonCallWithResult('support_abandon', params),
purchase_list: (params = {}) => daemonCallWithResult('purchase_list', params),
sync_hash: (params = {}) => daemonCallWithResult('sync_hash', params),
sync_apply: (params = {}) => daemonCallWithResult('sync_apply', params),
// Preferences
preference_get: (params = {}) => daemonCallWithResult('preference_get', params),
preference_set: (params = {}) => daemonCallWithResult('preference_set', params),
// Comments
comment_list: (params = {}) => daemonCallWithResult('comment_list', params),
comment_create: (params = {}) => daemonCallWithResult('comment_create', params),
comment_hide: (params = {}) => daemonCallWithResult('comment_hide', params),
comment_abandon: (params = {}) => daemonCallWithResult('comment_abandon', params),
comment_update: (params = {}) => daemonCallWithResult('comment_update', params),
// Connect to the sdk
connect: () => {
if (Lbry.connectPromise === null) {
Lbry.connectPromise = new Promise((resolve, reject) => {
let tryNum = 0;
const CHECK_DAEMON_STARTED_TRY_NUMBER = 120 // 1 minute
// Check every half second to see if the daemon is accepting connections
function checkDaemonStarted() {
tryNum += 1;
Lbry.status().then(resolve).catch(() => {
if (tryNum <= CHECK_DAEMON_STARTED_TRY_NUMBER) {
setTimeout(checkDaemonStarted, tryNum < 50 ? 400 : 1000);
} else {
reject(new Error('Unable to connect to LBRY'));
}
});
}
checkDaemonStarted();
});
}
// Flow thinks this could be empty, but it will always reuturn a promise
// $FlowFixMe
return Lbry.connectPromise;
},
publish: (params = {}) => new Promise((resolve, reject) => {
if (Lbry.overrides.publish) {
Lbry.overrides.publish(params).then(resolve, reject);
} else {
apiCall('publish', params, resolve, reject);
}
})
};
function checkAndParse(response) {
if (response.status >= 200 && response.status < 300) {
return response.json();
}
return response.json().then(json => {
let error;
if (json.error) {
const errorMessage = typeof json.error === 'object' ? json.error.message : json.error;
error = new Error(errorMessage);
} else {
error = new Error('Protocol error with unknown response signature');
}
return Promise.reject(error);
});
}
function apiCall(method, params, resolve, reject) {
const counter = new Date().getTime();
const options = {
method: 'POST',
headers: Lbry.apiRequestHeaders,
body: JSON.stringify({
jsonrpc: '2.0',
method,
params,
id: counter
})
};
const connectionString = Lbry.methodsUsingAlternateConnectionString.includes(method) ? Lbry.alternateConnectionString : Lbry.daemonConnectionString;
return fetch(connectionString + '?m=' + method, options).then(checkAndParse).then(response => {
const error = response.error || response.result && response.result.error;
if (error) {
return reject(error);
}
return resolve(response.result);
}).catch(reject);
}
function daemonCallWithResult(name, params = {}) {
return new Promise((resolve, reject) => {
apiCall(name, params, result => {
resolve(result);
}, reject);
});
}
module.exports = exports = { Lbry: Lbry };