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@@ -6,8 +6,7 @@ import os |
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import time |
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from typing import Optional |
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from flask import current_app |
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from configs import dify_config |
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from extensions.ext_storage import storage |
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IMAGE_EXTENSIONS = ['jpg', 'jpeg', 'png', 'webp', 'gif', 'svg'] |
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@@ -23,7 +22,7 @@ class UploadFileParser: |
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if upload_file.extension not in IMAGE_EXTENSIONS: |
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return None |
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if current_app.config['MULTIMODAL_SEND_IMAGE_FORMAT'] == 'url' or force_url: |
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if dify_config.MULTIMODAL_SEND_IMAGE_FORMAT == 'url' or force_url: |
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return cls.get_signed_temp_image_url(upload_file.id) |
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else: |
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# get image file base64 |
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@@ -44,13 +43,13 @@ class UploadFileParser: |
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:param upload_file: UploadFile object |
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:return: |
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""" |
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base_url = current_app.config.get('FILES_URL') |
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base_url = dify_config.FILES_URL |
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image_preview_url = f'{base_url}/files/{upload_file_id}/image-preview' |
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timestamp = str(int(time.time())) |
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nonce = os.urandom(16).hex() |
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data_to_sign = f"image-preview|{upload_file_id}|{timestamp}|{nonce}" |
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secret_key = current_app.config['SECRET_KEY'].encode() |
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secret_key = dify_config.SECRET_KEY.encode() |
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sign = hmac.new(secret_key, data_to_sign.encode(), hashlib.sha256).digest() |
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encoded_sign = base64.urlsafe_b64encode(sign).decode() |
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@@ -68,7 +67,7 @@ class UploadFileParser: |
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:return: |
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""" |
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data_to_sign = f"image-preview|{upload_file_id}|{timestamp}|{nonce}" |
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secret_key = current_app.config['SECRET_KEY'].encode() |
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secret_key = dify_config.SECRET_KEY.encode() |
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recalculated_sign = hmac.new(secret_key, data_to_sign.encode(), hashlib.sha256).digest() |
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recalculated_encoded_sign = base64.urlsafe_b64encode(recalculated_sign).decode() |
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@@ -77,4 +76,4 @@ class UploadFileParser: |
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return False |
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current_time = int(time.time()) |
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return current_time - int(timestamp) <= current_app.config.get('FILES_ACCESS_TIMEOUT') |
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return current_time - int(timestamp) <= dify_config.FILES_ACCESS_TIMEOUT |