mid-api-proxy/api/mj_api.py

from curl_cffi import requests
from api.error import unauthorized_error
from api.error import system_error
import oss2
import random
import string


# 查询历史所有任务列表
def thomas_jobs(cookie, user_id, page_size=50):
    url = f"https://www.midjourney.com/api/pg/thomas-jobs?user_id={user_id}&page_size={page_size}"
    response = requests.get(url, headers=nec_headers(cookie), impersonate="chrome101")
    return response_catch(response)


# 查询指定任务状态
def query_job_status(job_id, cookie):
    url = "https://www.midjourney.com/api/app/job-status"
    response = requests.post(url=url, headers=nec_headers(cookie), impersonate="chrome101", json={"jobIds": [job_id]})
    return response_catch(response)


# 查询任务队列
def query_job_queue(cookie, user_id):
    url = f"https://www.midjourney.com/api/app/users/queue?userId={user_id}"
    response = requests.get(url, headers=nec_headers(cookie), impersonate="chrome101")
    return response_catch(response)


# 提交任务 mode: relaxed/fast
def submit_job(cookie, prompt, user_id, mode):
    mode = mode or "fast"
    request_data = {
        "f": {
            "mode": mode,
            "private": False
        },
        "channelId": f"singleplayer_{user_id}",
        "roomId": None,
        "metadata": {
            "imagePrompts": 1,
            "imageReferences": 0,
            "characterReferences": 0
        },
        "t": "imagine",
        "prompt": prompt
    }
    url = "https://www.midjourney.com/api/app/submit-jobs"
    response = requests.post(url=url, headers=nec_headers(cookie), impersonate="chrome101", json=request_data)
    return response_catch(response)

def generate_random_string(length=15):
    characters = string.ascii_letters + string.digits
    return ''.join(random.choice(characters) for _ in range(length))

def upload_image_to_oss(job_id, image_num=4):
    OSS_ACCESS_KEY_ID = 'LTAI5tEYvefc4U3fyU5du225'
    OSS_ACCESS_KEY_SECRET = 'Z1gZtAGe8NwRtXgPzVgRMkRez4Ex4K'
    OSS_ENDPOINT = 'oss-ap-southeast-1-internal.aliyuncs.com'
    OSS_BUCKET_NAME = 'aigc-admin'

    results = []
    for i in range(image_num):
        object_name = 'saas/mjImage/' + generate_random_string(32) + ".png"
        # 下载网络图片
        response = requests.get(f"https://cdn.midjourney.com/{job_id}/0_{i}.png",
                                headers=nec_headers(""),
                                impersonate="chrome101")
        if response.ok:
            # 连接OSS
            auth = oss2.Auth(OSS_ACCESS_KEY_ID, OSS_ACCESS_KEY_SECRET)
            bucket = oss2.Bucket(auth, OSS_ENDPOINT, OSS_BUCKET_NAME)
            # 上传图片到OSS
            bucket.put_object(object_name, response.content)
            # 构造OSS文件URL
            oss_url = f"https://res.aiddit.com/{object_name}"
            results.append(oss_url)

    return results


def response_catch(response):
    if response.ok:
        return response.json()
    elif response.status_code == 401:
        raise unauthorized_error("unauthorized access (401)")
    else:
        raise system_error(f"system_error ({response.status_code})")


def nec_headers(cookie):
    headers = {
        'accept': '*/*',
        'accept-language': 'zh-CN,zh;q=0.9',
        'cache-control': 'no-cache',
        'cookie': cookie,
        'pragma': 'no-cache',
        'priority': 'u=1, i',
        'referer': 'https://www.midjourney.com/explore',
        'sec-ch-ua': '"Google Chrome";v="129", "Not=A?Brand";v="8", "Chromium";v="129"',
        'sec-ch-ua-mobile': '?0',
        'sec-ch-ua-platform': '"Windows"',
        'sec-fetch-dest': 'empty',
        'sec-fetch-mode': 'cors',
        'sec-fetch-site': 'same-origin',
        'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36',
        'x-requested-with': 'XMLHttpRequest',
        'x-csrf-protection': 1
    }
    return headers