add /sdapi/v1/controlnets api endpoint

Signed-off-by: Vladimir Mandic <mandic00@live.com>

CHANGELOG.md

@@ -18,6 +18,7 @@
 
 - **API**
   - Add `/sdapi/v1/lora?lora=<lora_name>` endpoint that returns full lora info and metadata  
+  - Add `/sdapi/v1/controlnets?model_type=<model_type|all|None>` endpoints that returns list of available controlnets for specific model type  
 
 - **Fixes**  
   - IPEX with DPM2++ FlowMatch samplers  

modules/api/api.py

@@ -78,6 +78,7 @@ class Api:
         self.add_api_route("/sdapi/v1/samplers", endpoints.get_samplers, methods=["GET"], response_model=List[models.ItemSampler])
         self.add_api_route("/sdapi/v1/upscalers", endpoints.get_upscalers, methods=["GET"], response_model=List[models.ItemUpscaler])
         self.add_api_route("/sdapi/v1/sd-models", endpoints.get_sd_models, methods=["GET"], response_model=List[models.ItemModel])
+        self.add_api_route("/sdapi/v1/controlnets", endpoints.get_controlnets, methods=["GET"], response_model=List[str])
         self.add_api_route("/sdapi/v1/hypernetworks", endpoints.get_hypernetworks, methods=["GET"], response_model=List[models.ItemHypernetwork])
         self.add_api_route("/sdapi/v1/face-restorers", endpoints.get_detailers, methods=["GET"], response_model=List[models.ItemDetailer])
         self.add_api_route("/sdapi/v1/prompt-styles", endpoints.get_prompt_styles, methods=["GET"], response_model=List[models.ItemStyle])

modules/api/endpoints.py

@@ -23,6 +23,10 @@ def get_sd_models():
         checkpoints.append({"title": v.title, "model_name": v.name, "filename": v.filename, "type": v.type, "hash": v.shorthash, "sha256": v.sha256, "config": sd_models_config.find_checkpoint_config_near_filename(v)})
     return checkpoints
 
+def get_controlnets(model_type: Optional[str] = None):
+    from modules.control.units.controlnet import api_list_models
+    return api_list_models()
+
 def get_hypernetworks():
     return [{"name": name, "path": shared.hypernetworks[name]} for name in shared.hypernetworks]
 

modules/control/units/controlnet.py

@@ -137,6 +137,23 @@ def find_models():
 
 find_models()
 
+
+def api_list_models(model_type: str = None):
+    import modules.shared
+    model_type = model_type or modules.shared.sd_model_type
+    model_list = []
+    if model_type == 'sd' or model_type == 'all':
+        model_list += list(predefined_sd15)
+    if model_type == 'sdxl' or model_type == 'all':
+        model_list += list(predefined_sdxl)
+    if model_type == 'f1' or model_type == 'all':
+        model_list += list(predefined_f1)
+    if model_type == 'sd3' or model_type == 'all':
+        model_list += list(predefined_sd3)
+    model_list += sorted(find_models())
+    return model_list
+    
+
 def list_models(refresh=False):
     import modules.shared
     global models # pylint: disable=global-statement