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76b9762 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 | # app/services/chat/api_client.py
from typing import Dict, Any, AsyncGenerator, Optional
import httpx
import random
from abc import ABC, abstractmethod
from app.config.config import settings
from app.log.logger import get_api_client_logger
from app.core.constants import DEFAULT_TIMEOUT
logger = get_api_client_logger()
class ApiClient(ABC):
"""API客户端基类"""
@abstractmethod
async def generate_content(self, payload: Dict[str, Any], model: str, api_key: str) -> Dict[str, Any]:
pass
@abstractmethod
async def stream_generate_content(self, payload: Dict[str, Any], model: str, api_key: str) -> AsyncGenerator[str, None]:
pass
class GeminiApiClient(ApiClient):
"""Gemini API客户端"""
def __init__(self, base_url: str, timeout: int = DEFAULT_TIMEOUT):
self.base_url = base_url
self.timeout = timeout
def _get_real_model(self, model: str) -> str:
if model.endswith("-search"):
model = model[:-7]
if model.endswith("-image"):
model = model[:-6]
if model.endswith("-non-thinking"):
model = model[:-13]
if "-search" in model and "-non-thinking" in model:
model = model[:-20]
return model
async def get_models(self, api_key: str) -> Optional[Dict[str, Any]]:
"""获取可用的 Gemini 模型列表"""
timeout = httpx.Timeout(timeout=5)
proxy_to_use = None
if settings.PROXIES:
if settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY:
proxy_to_use = settings.PROXIES[hash(api_key) % len(settings.PROXIES)]
else:
proxy_to_use = random.choice(settings.PROXIES)
logger.info(f"Using proxy for getting models: {proxy_to_use}")
async with httpx.AsyncClient(timeout=timeout, proxy=proxy_to_use) as client:
url = f"{self.base_url}/models?key={api_key}&pageSize=1000"
try:
response = await client.get(url)
response.raise_for_status()
return response.json()
except httpx.HTTPStatusError as e:
logger.error(f"获取模型列表失败: {e.response.status_code}")
logger.error(e.response.text)
return None
except httpx.RequestError as e:
logger.error(f"请求模型列表失败: {e}")
return None
async def generate_content(self, payload: Dict[str, Any], model: str, api_key: str) -> Dict[str, Any]:
timeout = httpx.Timeout(self.timeout, read=self.timeout)
model = self._get_real_model(model)
proxy_to_use = None
if settings.PROXIES:
if settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY:
proxy_to_use = settings.PROXIES[hash(api_key) % len(settings.PROXIES)]
else:
proxy_to_use = random.choice(settings.PROXIES)
logger.info(f"Using proxy for getting models: {proxy_to_use}")
async with httpx.AsyncClient(timeout=timeout, proxy=proxy_to_use) as client:
url = f"{self.base_url}/models/{model}:generateContent?key={api_key}"
response = await client.post(url, json=payload)
if response.status_code != 200:
error_content = response.text
raise Exception(f"API call failed with status code {response.status_code}, {error_content}")
return response.json()
async def stream_generate_content(self, payload: Dict[str, Any], model: str, api_key: str) -> AsyncGenerator[str, None]:
timeout = httpx.Timeout(self.timeout, read=self.timeout)
model = self._get_real_model(model)
proxy_to_use = None
if settings.PROXIES:
if settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY:
proxy_to_use = settings.PROXIES[hash(api_key) % len(settings.PROXIES)]
else:
proxy_to_use = random.choice(settings.PROXIES)
logger.info(f"Using proxy for getting models: {proxy_to_use}")
async with httpx.AsyncClient(timeout=timeout, proxy=proxy_to_use) as client:
url = f"{self.base_url}/models/{model}:streamGenerateContent?alt=sse&key={api_key}"
async with client.stream(method="POST", url=url, json=payload) as response:
if response.status_code != 200:
error_content = await response.aread()
error_msg = error_content.decode("utf-8")
raise Exception(f"API call failed with status code {response.status_code}, {error_msg}")
async for line in response.aiter_lines():
yield line
class OpenaiApiClient(ApiClient):
"""OpenAI API客户端"""
def __init__(self, base_url: str, timeout: int = DEFAULT_TIMEOUT):
self.base_url = base_url
self.timeout = timeout
async def get_models(self, api_key: str) -> Dict[str, Any]:
timeout = httpx.Timeout(self.timeout, read=self.timeout)
proxy_to_use = None
if settings.PROXIES:
if settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY:
proxy_to_use = settings.PROXIES[hash(api_key) % len(settings.PROXIES)]
else:
proxy_to_use = random.choice(settings.PROXIES)
logger.info(f"Using proxy for getting models: {proxy_to_use}")
async with httpx.AsyncClient(timeout=timeout, proxy=proxy_to_use) as client:
url = f"{self.base_url}/openai/models"
headers = {"Authorization": f"Bearer {api_key}"}
response = await client.get(url, headers=headers)
if response.status_code != 200:
error_content = response.text
raise Exception(f"API call failed with status code {response.status_code}, {error_content}")
return response.json()
async def generate_content(self, payload: Dict[str, Any], api_key: str) -> Dict[str, Any]:
timeout = httpx.Timeout(self.timeout, read=self.timeout)
logger.info(f"settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY: {settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY}")
proxy_to_use = None
if settings.PROXIES:
if settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY:
proxy_to_use = settings.PROXIES[hash(api_key) % len(settings.PROXIES)]
else:
proxy_to_use = random.choice(settings.PROXIES)
logger.info(f"Using proxy for getting models: {proxy_to_use}")
async with httpx.AsyncClient(timeout=timeout, proxy=proxy_to_use) as client:
url = f"{self.base_url}/openai/chat/completions"
headers = {"Authorization": f"Bearer {api_key}"}
response = await client.post(url, json=payload, headers=headers)
if response.status_code != 200:
error_content = response.text
raise Exception(f"API call failed with status code {response.status_code}, {error_content}")
return response.json()
async def stream_generate_content(self, payload: Dict[str, Any], api_key: str) -> AsyncGenerator[str, None]:
timeout = httpx.Timeout(self.timeout, read=self.timeout)
proxy_to_use = None
if settings.PROXIES:
if settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY:
proxy_to_use = settings.PROXIES[hash(api_key) % len(settings.PROXIES)]
else:
proxy_to_use = random.choice(settings.PROXIES)
logger.info(f"Using proxy for getting models: {proxy_to_use}")
async with httpx.AsyncClient(timeout=timeout, proxy=proxy_to_use) as client:
url = f"{self.base_url}/openai/chat/completions"
headers = {"Authorization": f"Bearer {api_key}"}
async with client.stream(method="POST", url=url, json=payload, headers=headers) as response:
if response.status_code != 200:
error_content = await response.aread()
error_msg = error_content.decode("utf-8")
raise Exception(f"API call failed with status code {response.status_code}, {error_msg}")
async for line in response.aiter_lines():
yield line
async def create_embeddings(self, input: str, model: str, api_key: str) -> Dict[str, Any]:
timeout = httpx.Timeout(self.timeout, read=self.timeout)
proxy_to_use = None
if settings.PROXIES:
if settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY:
proxy_to_use = settings.PROXIES[hash(api_key) % len(settings.PROXIES)]
else:
proxy_to_use = random.choice(settings.PROXIES)
logger.info(f"Using proxy for getting models: {proxy_to_use}")
async with httpx.AsyncClient(timeout=timeout, proxy=proxy_to_use) as client:
url = f"{self.base_url}/openai/embeddings"
headers = {"Authorization": f"Bearer {api_key}"}
payload = {
"input": input,
"model": model,
}
response = await client.post(url, json=payload, headers=headers)
if response.status_code != 200:
error_content = response.text
raise Exception(f"API call failed with status code {response.status_code}, {error_content}")
return response.json()
async def generate_images(self, payload: Dict[str, Any], api_key: str) -> Dict[str, Any]:
timeout = httpx.Timeout(self.timeout, read=self.timeout)
proxy_to_use = None
if settings.PROXIES:
if settings.PROXIES_USE_CONSISTENCY_HASH_BY_API_KEY:
proxy_to_use = settings.PROXIES[hash(api_key) % len(settings.PROXIES)]
else:
proxy_to_use = random.choice(settings.PROXIES)
logger.info(f"Using proxy for getting models: {proxy_to_use}")
async with httpx.AsyncClient(timeout=timeout, proxy=proxy_to_use) as client:
url = f"{self.base_url}/openai/images/generations"
headers = {"Authorization": f"Bearer {api_key}"}
response = await client.post(url, json=payload, headers=headers)
if response.status_code != 200:
error_content = response.text
raise Exception(f"API call failed with status code {response.status_code}, {error_content}")
return response.json() |