提交

.venv/Lib/site-packages/playwright/_impl/_stream.py

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+# Copyright (c) Microsoft Corporation.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import base64
+from pathlib import Path
+from typing import Dict, Union
+
+from playwright._impl._connection import ChannelOwner
+
+
+class Stream(ChannelOwner):
+    def __init__(
+        self, parent: ChannelOwner, type: str, guid: str, initializer: Dict
+    ) -> None:
+        super().__init__(parent, type, guid, initializer)
+
+    async def save_as(self, path: Union[str, Path]) -> None:
+        file = await self._loop.run_in_executor(None, lambda: open(path, "wb"))
+        while True:
+            binary = await self._channel.send("read", None, {"size": 1024 * 1024})
+            if not binary:
+                break
+            await self._loop.run_in_executor(
+                None, lambda: file.write(base64.b64decode(binary))
+            )
+        await self._loop.run_in_executor(None, lambda: file.close())
+
+    async def read_all(self) -> bytes:
+        binary = b""
+        while True:
+            chunk = await self._channel.send("read", None, {"size": 1024 * 1024})
+            if not chunk:
+                break
+            binary += base64.b64decode(chunk)
+        return binary