Update app.py

app.py

@@ -2,6 +2,8 @@ import gradio as gr
 from huggingface_hub import login
 import os
 
+is_shared_ui = True if "fffiloni/sdxl-control-loras" in os.environ['SPACE_ID'] else False
+
 hf_token = os.environ.get("HF_TOKEN")
 login(token=hf_token)
 
@@ -59,6 +61,9 @@ def infer(use_custom_model, model_name, custom_lora_weight, image_in, prompt, ne
     prompt = prompt
     negative_prompt = negative_prompt
     generator = torch.Generator(device="cuda").manual_seed(seed)
+
+    if image_in == None:
+        raise gr.Error("You forgot to upload a source image.")
     
     image_in = resize_image(image_in, "resized_input.jpg", 1024)
     
@@ -73,6 +78,10 @@ def infer(use_custom_model, model_name, custom_lora_weight, image_in, prompt, ne
         image = Image.fromarray(image)
     
     if use_custom_model:
+        
+        if custom_model == "":
+            raise gr.Error("you forgot to set a custom model name.")
+        
         custom_model = model_name
 
         # This is where you load your trained weights
@@ -111,9 +120,46 @@ css="""
     max-width: 680px;
     text-align: left;
 }
+div#warning-duplicate {
+    background-color: #ebf5ff;
+    padding: 0 10px 5px;
+    margin: 20px 0;
+}
+div#warning-duplicate > .gr-prose > h2, div#warning-duplicate > .gr-prose > p {
+    color: #0f4592!important;
+}
+div#warning-duplicate strong {
+    color: #0f4592;
+}
+p.actions {
+    display: flex;
+    align-items: center;
+    margin: 20px 0;
+}
+div#warning-duplicate .actions a {
+    display: inline-block;
+    margin-right: 10px;
+}
 """
+
 with gr.Blocks(css=css) as demo:
     with gr.Column(elem_id="col-container"):
+        if is_shared_ui:
+            top_description = gr.HTML(f'''
+                <div class="gr-prose">
+                    <h2><svg xmlns="http://www.w3.org/2000/svg" width="18px" height="18px" style="margin-right: 0px;display: inline-block;"fill="none"><path fill="#fff" d="M7 13.2a6.3 6.3 0 0 0 4.4-10.7A6.3 6.3 0 0 0 .6 6.9 6.3 6.3 0 0 0 7 13.2Z"/><path fill="#fff" fill-rule="evenodd" d="M7 0a6.9 6.9 0 0 1 4.8 11.8A6.9 6.9 0 0 1 0 7 6.9 6.9 0 0 1 7 0Zm0 0v.7V0ZM0 7h.6H0Zm7 6.8v-.6.6ZM13.7 7h-.6.6ZM9.1 1.7c-.7-.3-1.4-.4-2.2-.4a5.6 5.6 0 0 0-4 1.6 5.6 5.6 0 0 0-1.6 4 5.6 5.6 0 0 0 1.6 4 5.6 5.6 0 0 0 4 1.7 5.6 5.6 0 0 0 4-1.7 5.6 5.6 0 0 0 1.7-4 5.6 5.6 0 0 0-1.7-4c-.5-.5-1.1-.9-1.8-1.2Z" clip-rule="evenodd"/><path fill="#000" fill-rule="evenodd" d="M7 2.9a.8.8 0 1 1 0 1.5A.8.8 0 0 1 7 3ZM5.8 5.7c0-.4.3-.6.6-.6h.7c.3 0 .6.2.6.6v3.7h.5a.6.6 0 0 1 0 1.3H6a.6.6 0 0 1 0-1.3h.4v-3a.6.6 0 0 1-.6-.7Z" clip-rule="evenodd"/></svg>
+                    Note: you might want to duplicate this space to use a private model</h2>
+                    <p class="main-message">
+                        To do so, <strong>duplicate the Space</strong> and run it on your own profile using and eventually <strong>your own access token</strong> and eventually a GPU (T4-small or A10G-small).<br />
+                    </p>
+                    <p class="actions">
+                        <a href="https://huggingface.co/spaces/{os.environ['SPACE_ID']}?duplicate=true">
+                            <img src="https://huggingface.co/datasets/huggingface/badges/resolve/main/duplicate-this-space-lg-dark.svg" alt="Duplicate this Space" />
+                        </a>
+                        to start using private models and skip the queue
+                    </p>
+                </div>
+            ''', elem_id="warning-duplicate")
         gr.HTML("""
 <h2 style="text-align: center;">SD-XL Control LoRas</h2>
 <p style="text-align: center;">Use StableDiffusion XL with <a href="https://huggingface.co/collections/diffusers/sdxl-controlnets-64f9c35846f3f06f5abe351f">Diffusers' SDXL ControlNets</a></p>