File size: 9,440 Bytes
447ebeb
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
import asyncio
import traceback
from typing import List

import orjson
from fastapi import APIRouter, Depends, File, HTTPException, Request, Response, status
from fastapi.responses import ORJSONResponse

import litellm
from litellm._logging import verbose_proxy_logger
from litellm.proxy._types import *
from litellm.proxy.auth.user_api_key_auth import UserAPIKeyAuth, user_api_key_auth
from litellm.proxy.common_request_processing import ProxyBaseLLMRequestProcessing
from litellm.proxy.route_llm_request import route_request

router = APIRouter()

import io

from fastapi import UploadFile


async def uploadfile_to_bytesio(upload: UploadFile) -> io.BytesIO:
    """
    Read a FastAPI UploadFile into a BytesIO and set .name so OpenAI SDK
    infers filename/content-type correctly.
    """
    data = await upload.read()
    buffer = io.BytesIO(data)
    buffer.name = upload.filename
    return buffer


async def batch_to_bytesio(
    uploads: Optional[List[UploadFile]],
) -> Optional[List[io.BytesIO]]:
    """
    Convert a list of UploadFiles to a list of BytesIO buffers, or None.
    """
    if not uploads:
        return None
    return [await uploadfile_to_bytesio(u) for u in uploads]


@router.post(
    "/v1/images/generations",
    dependencies=[Depends(user_api_key_auth)],
    response_class=ORJSONResponse,
    tags=["images"],
)
@router.post(
    "/images/generations",
    dependencies=[Depends(user_api_key_auth)],
    response_class=ORJSONResponse,
    tags=["images"],
)
@router.post(
    "/openai/deployments/{model:path}/images/generations",
    dependencies=[Depends(user_api_key_auth)],
    response_class=ORJSONResponse,
    tags=["images"],
)  # azure compatible endpoint
async def image_generation(
    request: Request,
    fastapi_response: Response,
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    model: Optional[str] = None,
):
    from litellm.proxy.proxy_server import (
        add_litellm_data_to_request,
        general_settings,
        llm_router,
        proxy_config,
        proxy_logging_obj,
        user_model,
        version,
    )

    data = {}
    try:
        # Use orjson to parse JSON data, orjson speeds up requests significantly
        body = await request.body()
        data = orjson.loads(body)

        # Include original request and headers in the data
        data = await add_litellm_data_to_request(
            data=data,
            request=request,
            general_settings=general_settings,
            user_api_key_dict=user_api_key_dict,
            version=version,
            proxy_config=proxy_config,
        )

        data["model"] = (
            model
            or general_settings.get("image_generation_model", None)  # server default
            or user_model  # model name passed via cli args
            or data.get("model", None)  # default passed in http request
        )
        if user_model:
            data["model"] = user_model

        ### MODEL ALIAS MAPPING ###
        # check if model name in model alias map
        # get the actual model name
        if data["model"] in litellm.model_alias_map:
            data["model"] = litellm.model_alias_map[data["model"]]

        ### CALL HOOKS ### - modify incoming data / reject request before calling the model
        data = await proxy_logging_obj.pre_call_hook(
            user_api_key_dict=user_api_key_dict, data=data, call_type="image_generation"
        )

        ## ROUTE TO CORRECT ENDPOINT ##
        llm_call = await route_request(
            data=data,
            route_type="aimage_generation",
            llm_router=llm_router,
            user_model=user_model,
        )
        response = await llm_call

        ### ALERTING ###
        asyncio.create_task(
            proxy_logging_obj.update_request_status(
                litellm_call_id=data.get("litellm_call_id", ""), status="success"
            )
        )
        ### RESPONSE HEADERS ###
        hidden_params = getattr(response, "_hidden_params", {}) or {}
        model_id = hidden_params.get("model_id", None) or ""
        cache_key = hidden_params.get("cache_key", None) or ""
        api_base = hidden_params.get("api_base", None) or ""
        response_cost = hidden_params.get("response_cost", None) or ""
        litellm_call_id = hidden_params.get("litellm_call_id", None) or ""

        fastapi_response.headers.update(
            ProxyBaseLLMRequestProcessing.get_custom_headers(
                user_api_key_dict=user_api_key_dict,
                model_id=model_id,
                cache_key=cache_key,
                api_base=api_base,
                version=version,
                response_cost=response_cost,
                model_region=getattr(user_api_key_dict, "allowed_model_region", ""),
                call_id=litellm_call_id,
                request_data=data,
                hidden_params=hidden_params,
            )
        )

        return response
    except Exception as e:
        await proxy_logging_obj.post_call_failure_hook(
            user_api_key_dict=user_api_key_dict, original_exception=e, request_data=data
        )
        verbose_proxy_logger.error(
            "litellm.proxy.proxy_server.image_generation(): Exception occured - {}".format(
                str(e)
            )
        )
        verbose_proxy_logger.debug(traceback.format_exc())
        if isinstance(e, HTTPException):
            raise ProxyException(
                message=getattr(e, "message", str(e)),
                type=getattr(e, "type", "None"),
                param=getattr(e, "param", "None"),
                code=getattr(e, "status_code", status.HTTP_400_BAD_REQUEST),
            )
        else:
            error_msg = f"{str(e)}"
            raise ProxyException(
                message=getattr(e, "message", error_msg),
                type=getattr(e, "type", "None"),
                param=getattr(e, "param", "None"),
                openai_code=getattr(e, "code", None),
                code=getattr(e, "status_code", 500),
            )


@router.post(
    "/v1/images/edits",
    dependencies=[Depends(user_api_key_auth)],
    tags=["images"],
)
@router.post(
    "/images/edits",
    dependencies=[Depends(user_api_key_auth)],
    tags=["images"],
)
@router.post(
    "/openai/deployments/{model:path}/images/edits",
    dependencies=[Depends(user_api_key_auth)],
    response_class=ORJSONResponse,
    tags=["images"],
)  # azure compatible endpoint
async def image_edit_api(
    request: Request,
    fastapi_response: Response,
    image: List[UploadFile] = File(...),
    mask: Optional[List[UploadFile]] = File(None),
    user_api_key_dict: UserAPIKeyAuth = Depends(user_api_key_auth),
    model: Optional[str] = None,
):
    """
    Follows the OpenAI Images API spec: https://platform.openai.com/docs/api-reference/images/create

    ```bash
    curl -s -D >(grep -i x-request-id >&2) \
    -o >(jq -r '.data[0].b64_json' | base64 --decode > gift-basket.png) \
    -X POST "http://localhost:4000/v1/images/edits" \
    -H "Authorization: Bearer sk-1234" \
        -F "model=gpt-image-1" \
        -F "image[][email protected]" \
        -F 'prompt=Create a studio ghibli image of this'
    ```
    """
    from litellm.proxy.proxy_server import (
        _read_request_body,
        general_settings,
        llm_router,
        proxy_config,
        proxy_logging_obj,
        select_data_generator,
        user_api_base,
        user_max_tokens,
        user_model,
        user_request_timeout,
        user_temperature,
        version,
    )

    #########################################################
    # Read request body and convert UploadFiles to BytesIO
    #########################################################
    data = await _read_request_body(request=request)
    image_files = await batch_to_bytesio(image)
    mask_files = await batch_to_bytesio(mask)
    if image_files:
        data["image"] = image_files
    if mask_files:
        data["mask"] = mask_files

    data["model"] = (
        model
        or general_settings.get("image_generation_model", None)  # server default
        or user_model  # model name passed via cli args
        or data.get("model", None)  # default passed in http request
    )
    #########################################################
    # Process request
    #########################################################

    processor = ProxyBaseLLMRequestProcessing(data=data)
    try:
        return await processor.base_process_llm_request(
            request=request,
            fastapi_response=fastapi_response,
            user_api_key_dict=user_api_key_dict,
            route_type="aimage_edit",
            proxy_logging_obj=proxy_logging_obj,
            llm_router=llm_router,
            general_settings=general_settings,
            proxy_config=proxy_config,
            select_data_generator=select_data_generator,
            model=None,
            user_model=user_model,
            user_temperature=user_temperature,
            user_request_timeout=user_request_timeout,
            user_max_tokens=user_max_tokens,
            user_api_base=user_api_base,
            version=version,
        )
    except Exception as e:
        raise await processor._handle_llm_api_exception(
            e=e,
            user_api_key_dict=user_api_key_dict,
            proxy_logging_obj=proxy_logging_obj,
            version=version,
        )