fix: centralize sandbox temp path management

api/core/sandbox/bash/session.py

@@ -72,14 +72,14 @@ class SandboxBashSession:
         tools: ToolDependencies,
         cli_api_session: CliApiSession,
     ) -> str:
-        node_tools_path = f"{cli.tools_root}/{node_id}"
+        node_tools_path = cli.node_tools_path(node_id)
         config_json = json.dumps(
             DifyCliConfig.create(session=cli_api_session, tenant_id=self._tenant_id, tool_deps=tools).model_dump(
                 mode="json"
             ),
             ensure_ascii=False,
         )
-        config_path = shlex.quote(f"{node_tools_path}/{DifyCli.CONFIG_FILENAME}")
+        config_path = shlex.quote(cli.node_config_path(node_id))
 
         vm = self._sandbox.vm
         # Merge mkdir + config write into a single pipeline to reduce round-trips.

api/core/sandbox/entities/config.py

@@ -19,15 +19,25 @@ class DifyCli:
 
     # --- instance attributes ---
     root: str
+    bin_dir: str
     bin_path: str
     tools_root: str
     global_tools_path: str
+    global_config_path: str
 
     def __init__(self, env_id: str) -> None:
         self.root = f"/tmp/.dify/{env_id}"
-        self.bin_path = f"{self.root}/bin/dify"
+        self.bin_dir = f"{self.root}/bin"
+        self.bin_path = f"{self.bin_dir}/dify"
         self.tools_root = f"{self.root}/tools"
         self.global_tools_path = f"{self.root}/tools/global"
+        self.global_config_path = f"{self.global_tools_path}/{DifyCli.CONFIG_FILENAME}"
+
+    def node_tools_path(self, node_id: str) -> str:
+        return f"{self.tools_root}/{node_id}"
+
+    def node_config_path(self, node_id: str) -> str:
+        return f"{self.node_tools_path(node_id)}/{DifyCli.CONFIG_FILENAME}"
 
 
 class AppAssets:
@@ -40,7 +50,9 @@ class AppAssets:
 
     PATH: Final[str] = "skills"
 
+    root: str
     zip_path: str
 
     def __init__(self, env_id: str) -> None:
-        self.zip_path = f"/tmp/.dify/{env_id}/assets.zip"
+        self.root = f"/tmp/.dify/{env_id}"
+        self.zip_path = f"{self.root}/assets.zip"

api/core/sandbox/initializer/app_assets_initializer.py

@@ -26,11 +26,11 @@ class AppAssetsInitializer(AsyncSandboxInitializer):
         (
             pipeline(vm)
             .add(
-                ["mkdir", "-p", f"/tmp/.dify/{sandbox.id}"],
+                ["mkdir", "-p", assets.root],
                 error_message="Failed to create assets temp directory",
             )
             .add(
-                ["curl", "-fsSL", download_url, "-o", assets.zip_path],
+                ["sh", "-c", 'curl -fsSL "$1" -o "$2"', "sh", download_url, assets.zip_path],
                 error_message="Failed to download assets zip",
             )
             # Create the assets directory first to ensure it exists even if zip is empty
@@ -41,12 +41,12 @@ class AppAssetsInitializer(AsyncSandboxInitializer):
             # unzip with silent error and return 1 if the zip is empty
             # FIXME(Mairuis): should use a more robust way to check if the zip is empty
             .add(
-                ["sh", "-c", f"unzip {assets.zip_path} -d {AppAssets.PATH} 2>/dev/null || [ $? -eq 1 ]"],
+                ["sh", "-c", 'unzip "$1" -d "$2" 2>/dev/null || [ $? -eq 1 ]', "sh", assets.zip_path, AppAssets.PATH],
                 error_message="Failed to unzip assets",
             )
             # Ensure directories have execute permission for traversal and files are readable
             .add(
-                ["sh", "-c", f"chmod -R u+rwX,go+rX {AppAssets.PATH}"],
+                ["sh", "-c", 'chmod -R u+rwX,go+rX "$1"', "sh", AppAssets.PATH],
                 error_message="Failed to set permissions on assets",
             )
             .execute(timeout=APP_ASSETS_DOWNLOAD_TIMEOUT, raise_on_error=True)

api/core/sandbox/initializer/dify_cli_initializer.py

@@ -33,9 +33,9 @@ class DifyCliInitializer(AsyncSandboxInitializer):
         # FIXME(Mairuis): should be more robust, effectively.
         binary = self._locator.resolve(vm.metadata.os, vm.metadata.arch)
 
-        pipeline(vm).add(
-            ["mkdir", "-p", f"{cli.root}/bin"], error_message="Failed to create dify CLI directory"
-        ).execute(raise_on_error=True)
+        pipeline(vm).add(["mkdir", "-p", cli.bin_dir], error_message="Failed to create dify CLI directory").execute(
+            raise_on_error=True
+        )
 
         vm.upload_file(cli.bin_path, BytesIO(binary.path.read_bytes()))
 
@@ -69,7 +69,7 @@ class DifyCliInitializer(AsyncSandboxInitializer):
 
         config = DifyCliConfig.create(self._cli_api_session, ctx.tenant_id, bundle.get_tool_dependencies())
         config_json = json.dumps(config.model_dump(mode="json"), ensure_ascii=False)
-        config_path = f"{cli.global_tools_path}/{DifyCli.CONFIG_FILENAME}"
+        config_path = cli.global_config_path
         vm.upload_file(config_path, BytesIO(config_json.encode("utf-8")))
 
         pipeline(vm, cwd=cli.global_tools_path).add(