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from __future__ import annotations
import time
try:
from selenium.webdriver.remote.webdriver import WebDriver
except ImportError:
class WebDriver():
pass
from ..typing import CreateResult, Messages
from .base_provider import BaseProvider
from .helper import format_prompt, get_browser
class PerplexityAi(BaseProvider):
url = "https://www.perplexity.ai"
working = True
supports_gpt_4 = True
supports_stream = True
@classmethod
def create_completion(
cls,
model: str,
messages: Messages,
stream: bool,
proxy: str = None,
timeout: int = 120,
browser: WebDriver = None,
copilot: bool = False,
display: bool = True,
**kwargs
) -> CreateResult:
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
if browser:
driver = browser
else:
if display:
driver, display = get_browser("", True, proxy)
else:
driver = get_browser("", False, proxy)
prompt = format_prompt(messages)
driver.get(f"{cls.url}/")
wait = WebDriverWait(driver, timeout)
script = """
window._message = window._last_message = "";
window._message_finished = false;
const _socket_send = WebSocket.prototype.send;
WebSocket.prototype.send = function(...args) {
if (!window.socket_onmessage) {
window._socket_onmessage = this;
this.addEventListener("message", (event) => {
if (event.data.startsWith("42")) {
let data = JSON.parse(event.data.substring(2));
if (data[0] =="query_progress" || data[0] == "query_answered") {
let content = JSON.parse(data[1]["text"]);
if (data[1]["mode"] == "copilot") {
content = content[content.length-1]["content"]["answer"];
content = JSON.parse(content);
}
window._message = content["answer"];
window._message_finished = data[0] == "query_answered";
window._web_results = content["web_results"];
}
}
});
}
return _socket_send.call(this, ...args);
};
"""
driver.execute_script(script)
# Page loaded?
wait.until(EC.visibility_of_element_located((By.CSS_SELECTOR, "textarea[placeholder='Ask anything...']")))
if copilot:
try:
driver.find_element(By.CSS_SELECTOR, "img[alt='User avatar']")
driver.find_element(By.CSS_SELECTOR, "button[data-testid='copilot-toggle']").click()
except:
pass
# Enter question
driver.find_element(By.CSS_SELECTOR, "textarea[placeholder='Ask anything...']").send_keys(prompt)
# Submit question
driver.find_element(By.CSS_SELECTOR, "button.bg-super svg[data-icon='arrow-right']").click()
try:
script = """
if(window._message && window._message != window._last_message) {
try {
return window._message.substring(window._last_message.length);
} finally {
window._last_message = window._message;
}
} else if(window._message_finished) {
return null;
} else {
return '';
}
"""
while True:
chunk = driver.execute_script(script)
if chunk:
yield chunk
elif chunk != "":
break
else:
time.sleep(0.1)
finally:
driver.close()
if not browser:
time.sleep(0.1)
driver.quit()
if display:
display.stop()
|
