fixbuild fail with python3.7

(cherry picked from commit 985226be86ed6d31d7bfa42c1bb720d0eee02009)

fix-build-fail-with-python3.7.patch

@@ -0,0 +1,64 @@
+diff -Nur mitmproxy-7.0.0/mitmproxy/contentviews/__init__.py mitmproxy-7.0.0-1/mitmproxy/contentviews/__init__.py
+--- mitmproxy-7.0.0/mitmproxy/contentviews/__init__.py	2021-07-16 16:24:38.000000000 +0800
++++ mitmproxy-7.0.0-1/mitmproxy/contentviews/__init__.py	2021-08-04 15:27:39.221691053 +0800
+@@ -99,8 +99,10 @@
+     http_message = None
+     if isinstance(message, http.Message):
+         http_message = message
+-        if ctype := message.headers.get("content-type"):
+-            if ct := http.parse_content_type(ctype):
++        ctype_tmp = message.headers.get("content-type")
++        if ctype == ctype_tmp:
++            ct_tmp = http.parse_content_type(ctype)
++            if ct == ct_tmp:
+                 content_type = f"{ct[0]}/{ct[1]}"
+ 
+     description, lines, error = get_content_view(
+diff -Nur mitmproxy-7.0.0/mitmproxy/net/tls.py mitmproxy-7.0.0-1/mitmproxy/net/tls.py
+--- mitmproxy-7.0.0/mitmproxy/net/tls.py	2021-07-16 16:24:38.000000000 +0800
++++ mitmproxy-7.0.0-1/mitmproxy/net/tls.py	2021-08-04 15:32:53.086778204 +0800
+@@ -106,7 +106,7 @@
+     ok += SSL._lib.SSL_CTX_set_max_proto_version(context._context, max_version.value)  # type: ignore
+     if ok != 2:
+         raise RuntimeError(
+-            f"Error setting TLS versions ({min_version=}, {max_version=}). "
++            f"Error setting TLS versions ({min_version}, {max_version}). "
+             "The version you specified may be unavailable in your libssl."
+         )
+ 
+@@ -177,7 +177,7 @@
+     try:
+         context.load_verify_locations(ca_pemfile, ca_path)
+     except SSL.Error as e:
+-        raise RuntimeError(f"Cannot load trusted certificates ({ca_pemfile=}, {ca_path=}).") from e
++        raise RuntimeError(f"Cannot load trusted certificates ({ca_pemfile}, {ca_path}).") from e
+ 
+     # Client Certs
+     if client_cert:
+diff -Nur mitmproxy-7.0.0/mitmproxy/proxy/layers/http/__init__.py mitmproxy-7.0.0-1/mitmproxy/proxy/layers/http/__init__.py
+--- mitmproxy-7.0.0/mitmproxy/proxy/layers/http/__init__.py	2021-07-16 16:24:38.000000000 +0800
++++ mitmproxy-7.0.0-1/mitmproxy/proxy/layers/http/__init__.py	2021-08-04 15:30:16.424239006 +0800
+@@ -148,8 +148,8 @@
+         else:
+             self.flow = event.replay_flow
+         self.flow.request = event.request
+-
+-        if err := validate_request(self.mode, self.flow.request):
++        err_tmp = validate_request(self.mode, self.flow.request)
++        if err == err_tmp:
+             self.flow.response = http.Response.make(502, str(err))
+             self.client_state = self.state_errored
+             return (yield from self.send_response())
+diff -Nur mitmproxy-7.0.0/mitmproxy/proxy/server.py mitmproxy-7.0.0-1/mitmproxy/proxy/server.py
+--- mitmproxy-7.0.0/mitmproxy/proxy/server.py	2021-07-16 16:24:38.000000000 +0800
++++ mitmproxy-7.0.0-1/mitmproxy/proxy/server.py	2021-08-04 15:31:48.925738277 +0800
+@@ -142,7 +142,8 @@
+             server=command.connection
+         )
+         await self.handle_hook(server_hooks.ServerConnectHook(hook_data))
+-        if err := command.connection.error:
++        err_tmp = command.connection.error
++        if err == err_tmp:
+             self.log(f"server connection to {human.format_address(command.connection.address)} killed before connect: {err}")
+             self.server_event(events.OpenConnectionCompleted(command, f"Connection killed: {err}"))
+             return

python-mitmproxy.spec

@@ -1,11 +1,12 @@
 %global _empty_manifest_terminate_build 0
 Name:                python-mitmproxy
 Version:             7.0.0
-Release:             1
+Release:             2
 Summary:             An interactive, SSL/TLS-capable intercepting proxy for HTTP/1, HTTP/2, and WebSockets.
 License:             MIT
 URL:                 https://github.com/mitmproxy/mitmproxy/
 Source0:             https://github.com/mitmproxy/mitmproxy/archive/refs/tags/v%{version}.tar.gz
+Patch0:              fix-build-fail-with-python3.7.patch
 BuildArch:           noarch
 Requires:            python3-asgiref python3-blinker python3-Brotli python3-certifi python3-click
 Requires:            python3-cryptography python3-flask python3-h11 python3-h2 python3-hyperframe
@@ -33,7 +34,7 @@ Provides:            python3-mitmproxy-doc
 mitmproxy is an interactive, SSL/TLS-capable intercepting proxy with a console interface for HTTP/1, HTTP/2, and WebSockets.
 
 %prep
-%autosetup -n mitmproxy-%{version}
+%autosetup -n mitmproxy-%{version} -p1
 
 %build
 %py3_build
@@ -73,5 +74,8 @@ mv %{buildroot}/doclist.lst .
 %{_docdir}/*
 
 %changelog
+* Sat Aug 21 2021 liyanan <liyanan32@huawei.com> - 7.0.0-2
+- fix build fail with python3.7
+
 * Fri Jul 30 2021 liyanan <liyanan32@huawei.com> - 7.0.0-1
 - package init