Add ImageGen exaple (Using DALL-E)

examples/pipelines/providers/openai_dalle_manifold_pipeline.py

@@ -0,0 +1,86 @@
+"""A manifold to integrate OpenAI's ImageGen models into Open-WebUI"""
+
+from typing import List, Union, Generator, Iterator
+
+from pydantic import BaseModel
+
+from openai import OpenAI
+
+class Pipeline:
+    """OpenAI ImageGen pipeline"""
+
+    class Valves(BaseModel):
+        """Options to change from the WebUI"""
+
+        OPENAI_API_BASE_URL: str = "https://api.openai.com/v1"
+        OPENAI_API_KEY: str = ""
+        IMAGE_SIZE: str = "1024x1024"
+        NUM_IMAGES: int = 1
+
+    def __init__(self):
+        self.type = "manifold"
+        self.name = "ImageGen: "
+
+        self.valves = self.Valves()
+        self.client = OpenAI(
+            base_url=self.valves.OPENAI_API_BASE_URL,
+            api_key=self.valves.OPENAI_API_KEY,
+        )
+
+        self.pipelines = self.get_openai_assistants()
+
+    async def on_startup(self) -> None:
+        """This function is called when the server is started."""
+        print(f"on_startup:{__name__}")
+
+    async def on_shutdown(self):
+        """This function is called when the server is stopped."""
+        print(f"on_shutdown:{__name__}")
+
+    async def on_valves_updated(self):
+        """This function is called when the valves are updated."""
+        print(f"on_valves_updated:{__name__}")
+        self.client = OpenAI(
+            base_url=self.valves.OPENAI_API_BASE_URL,
+            api_key=self.valves.OPENAI_API_KEY,
+        )
+        self.pipelines = self.get_openai_assistants()
+
+    def get_openai_assistants(self) -> List[dict]:
+        """Get the available ImageGen models from OpenAI
+
+        Returns:
+            List[dict]: The list of ImageGen models
+        """
+
+        if self.valves.OPENAI_API_KEY:
+            models = self.client.models.list()
+            return [
+                {
+                    "id": model.id,
+                    "name": model.id,
+                }
+                for model in models
+                if "dall-e" in model.id
+            ]
+
+        return []
+
+    def pipe(
+        self, user_message: str, model_id: str, messages: List[dict], body: dict
+    ) -> Union[str, Generator, Iterator]:
+        print(f"pipe:{__name__}")
+
+        response = self.client.images.generate(
+            model=model_id,
+            prompt=user_message,
+            size=self.valves.IMAGE_SIZE,
+            n=self.valves.NUM_IMAGES,
+        )
+
+        message = ""
+        for image in response.data:
+            if image.url:
+                message += "![image](" + image.url + ")\n"
+
+        yield message