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client.js
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client.js
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const Chat = require("./chat");
const uuidv4 = require("uuid").v4;
const Parser = require("./parser");
const Requester = require("./requester");
class Client {
#token = undefined;
#isGuest = false;
#authenticated = false;
#guestHeaders = {
"content-type": "application/json",
"user-agent": "CharacterAI/1.0.0 (iPhone; iOS 14.4.2; Scale/3." + Math.random().toFixed(1).split(".")[1] + ")"
}
requester = new Requester();
constructor() {
this.#token = undefined;
}
// api fetching
async fetchCategories() {
const request = await this.requester.request("https://beta.character.ai/chat/character/categories/");
if (request.status() === 200) return await Parser.parseJSON(request);
else throw Error("Failed to fetch categories");
}
async fetchUserConfig() {
const request = await this.requester.request("https://beta.character.ai/chat/config/", {
headers: this.#guestHeaders
});
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response;
} else Error("Failed fetching user configuration.");
}
async fetchUser() {
if (!this.isAuthenticated()) throw Error("You must be authenticated to do this.");
const request = await this.requester.request("https://beta.character.ai/chat/user/", {
headers: this.getHeaders()
});
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response;
} else Error("Failed fetching user.");
}
async fetchFeaturedCharacters() {
if (!this.isAuthenticated()) throw Error("You must be authenticated to do this.");
const request = await this.requester.request("https://beta.character.ai/chat/characters/featured_v2/", {
headers: this.getHeaders()
});
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response;
} else Error("Failed fetching featured characters.");
}
async fetchCharactersByCategory(curated = false) {
if (curated == undefined || typeof(curated) != "boolean") throw Error("Invalid arguments.");
const url = `https://beta.character.ai/chat/${
curated ? "curated_categories" : "categories"
}/characters/`;
const request = await this.requester.request(url, {
headers: this.#guestHeaders
});
const property = curated ? "characters_by_curated_category" : "characters_by_category";
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response[property]
} else Error("Failed fetching characters by category.");
}
async fetchCharacterInfo(characterId) {
if (!this.isAuthenticated()) throw Error("You must be authenticated to do this.");
if (characterId == undefined || typeof(characterId) != "string") throw Error("Invalid arguments.");
const request = await this.requester.request(`https://beta.character.ai/chat/character/info/`, {
headers: this.getHeaders(),
body: Parser.stringify({
external_id: characterId
}),
method: "POST"
});
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response.character;
} else Error("Could not fetch character information.");
}
async searchCharacters(characterName) {
if (!this.isAuthenticated()) throw Error("You must be authenticated to do this.");
if (this.#isGuest) throw Error("Guest accounts cannot use the search feature.");
if (characterName == undefined || typeof(characterName) != "string") throw Error("Invalid arguments.");
const request = await this.requester.request(`https://beta.character.ai/chat/characters/search/?query=${characterName}`, {
headers: this.getHeaders()
});
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response;
} else Error("Could not search for characters.");
}
async getRecentConversations() {
if (!this.isAuthenticated()) throw Error("You must be authenticated to do this.");
const request = await this.requester.request(`https://beta.character.ai/chat/characters/recent/`, {
headers: this.getHeaders()
});
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response;
} else Error("Could not get recent conversations.");
}
// chat
async createOrContinueChat(characterId, externalId = null) {
if (!this.isAuthenticated()) throw Error("You must be authenticated to do this.");
if (characterId == undefined || typeof(characterId) != "string" || typeof(externalId != null ? externalId : "") != "string") throw Error("Invalid arguments.");
let request = await this.requester.request("https://beta.character.ai/chat/history/continue/", {
body: Parser.stringify({
character_external_id: characterId,
history_external_id: externalId,
}),
method: "POST",
headers: this.getHeaders()
});
if (request.status() === 200 || request.status() === 404) {
let response = await request.text();
if (response.startsWith("no character found for"))
throw Error("Character with this id was not found");
if (response === "history not found." || response === "No Such History" || response === "there is no history between user and character") { // Create a new chat
request = await this.requester.request("https://beta.character.ai/chat/history/create/", {
body: Parser.stringify({
character_external_id: characterId,
history_external_id: null,
}),
method: "POST",
headers: this.getHeaders()
});
if (request.status() === 200) response = await Parser.parseJSON(request);
else Error("Could not create a new chat.");
}
// If a text gets returned, we try to parse it to JSON!
try {
response = JSON.parse(response);
} catch (error) {}
// Continue it
const continueBody = response;
return new Chat(this, characterId, continueBody);
} else Error("Could not create or resume a chat.");
}
// Fetch speech from text using provided voice id
async fetchTTS(voiceId, toSpeak) {
if (!this.isAuthenticated()) throw Error("You must be authenticated to do this.");
if (!voiceId || !toSpeak || typeof(voiceId) != "number" || typeof(toSpeak) != "string") throw Error("Invalid arguments.");
let request = await this.requester.request(`https://beta.character.ai/chat/character/preview-voice/?voice_id=${voiceId}&to_speak=${toSpeak}`, {
headers: this.getHeaders()
});
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response.speech;
} else Error("Could not fetch speech");
}
// Fetch character voices
async fetchTTSVoices() {
if (!this.isAuthenticated()) throw Error("You must be authenticated to do this.");
let request = await this.requester.request("https://beta.character.ai/chat/character/voices/", {
headers: this.getHeaders()
});
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
return response.voices;
} else Error("Could not fetch voices");
}
// authentification
async authenticateWithToken(sessionToken) {
if (this.isAuthenticated()) throw Error("Already authenticated");
if (!sessionToken || typeof(sessionToken) != "string") throw Error("You must specify a valid session token");
await this.requester.initialize();
if (sessionToken.length != 40) console.warn(
`===============================================================================
WARNING: CharacterAI has changed its authentication methods again.
For easier development purposes, usage of session tokens will be used.
See: https://github.com/realcoloride/node_characterai/issues/146
===============================================================================`
);
const request = await this.requester.request("https://neo.character.ai/recommendation/v1/user", {
method: "POST",
body: Parser.stringify({}),
headers: {
"Content-Type": "application/json",
"Authorization": `Token ${sessionToken}`
}
});
if (request.status() === 200) {
this.#isGuest = false;
this.#authenticated = true;
this.#token = sessionToken;
return sessionToken;
}
throw Error("Authentication token is invalid");
}
async authenticateAsGuest() {
if (this.isAuthenticated()) throw Error("Already authenticated");
console.log("[node_characterai] Puppeteer - Warning: Guest users can only send up to 10 messages.");
await this.requester.initialize();
let generating = false;
let request;
let uuid = uuidv4();
// This is experimental but forces authentication
for (let i = 0; i < 20; i++) {
generating = true;
uuid = uuidv4();
const payload = JSON.stringify({
lazy_uuid: uuid,
});
const baseRequest = await Promise.race([
this.requester.request("https://beta.character.ai/chat/auth/lazy/", {
method: "POST",
body: payload,
headers: this.#guestHeaders,
}),
new Promise(resolve => setTimeout(() => resolve(null), 2000))
]);
request = baseRequest;
generating = false;
if (request) break;
}
if (request.status() === 200) {
const response = await Parser.parseJSON(request);
if (response.success === true) {
this.#isGuest = true;
this.#authenticated = true;
this.#token = response.token;
this.uuid = uuid;
return response.token;
} else throw Error("Registering failed");
} else throw Error("Failed to fetch a lazy token");
}
unauthenticate() {
if (this.isAuthenticated()) {
this.#authenticated = false;
this.#isGuest = false;
this.#token = undefined;
this.requester.uninitialize();
}
}
// getters
getToken() {
return this.#token;
}
isGuest() {
return this.#isGuest;
}
isAuthenticated() {
return (this.#authenticated);
}
// headers
getHeaders() {
return {
authorization: `Token ${this.#token}`,
"Content-Type": "application/json",
// "user-agent": "CharacterAI/1.0.0 (iPhone; iOS 14.4.2; Scale/3.00)",
// "sec-ch-ua": `"Not_A Brand";v="99", "Google Chrome";v="109", "Chromium";v="109"`,
// "sec-ch-ua-mobile": "?0",
// "sec-ch-ua-platform": "Windows",
// "sec-fetch-dest": "empty",
// "sec-fetch-mode": "cors",
// "sec-fetch-site": "same-origin"
};
}
};
module.exports = Client;