Rework HTTP proxying code to work with mitmproxy 7.0.0

requirements.txt

@@ -1,69 +1,65 @@
 aiohttp==3.7.4.post0
 appdirs==1.4.4
 Arpeggio==1.10.2
-asgiref==3.3.4
+asgiref==3.4.1
 async-timeout==3.0.1
-attrs==20.3.0
-black==21.4b2
+attrs==21.2.0
 blinker==1.4
 Brotli==1.0.9
-certifi==2020.12.5
-cffi==1.14.5
+certifi==2021.5.30
+cffi==1.14.6
 chardet==4.0.0
-click==7.1.2
-cryptography==3.3.2
+charset-normalizer==2.0.3
+click==8.0.1
+cryptography==3.4.7
 defusedxml==0.7.1
-Flask==1.1.2
+Flask==2.0.1
 Glymur==0.9.3
 h11==0.12.0
 h2==4.0.0
 hpack==4.0.0
 hyperframe==6.0.1
 idna==2.10
-itsdangerous==1.1.0
+itsdangerous==2.0.1
 jedi==0.18.0
-Jinja2==2.11.3
+Jinja2==3.0.1
 kaitaistruct==0.9
 lazy-object-proxy==1.6.0
-ldap3==2.8.1
-llbase==1.2.10
+ldap3==2.9
+llbase==1.2.11
 lxml==4.6.3
-MarkupSafe==1.1.1
-mitmproxy==6.0.2
+MarkupSafe==2.0.1
+mitmproxy==7.0.0
 msgpack==1.0.2
 multidict==5.1.0
-mypy-extensions==0.4.3
-numpy==1.20.2
+numpy==1.21.0
 parso==0.8.2
 passlib==1.7.4
-pathspec==0.8.1
-prompt-toolkit==3.0.18
-protobuf==3.14.0
-ptpython==3.0.17
+prompt-toolkit==3.0.19
+protobuf==3.17.3
+ptpython==3.0.19
 publicsuffix2==2.20191221
 pyasn1==0.4.8
 pycparser==2.20
-Pygments==2.8.1
+Pygments==2.9.0
 pyOpenSSL==20.0.1
 pyparsing==2.4.7
 pyperclip==1.8.2
 PySide2==5.15.2
-qasync==0.15.0
+qasync==0.17.0
 recordclass==0.14.3
-regex==2021.4.4
-requests==2.25.1
-ruamel.yaml==0.16.13
-ruamel.yaml.clib==0.2.2
+requests==2.26.0
+ruamel.yaml==0.17.10
+ruamel.yaml.clib==0.2.6
 shiboken2==5.15.2
-six==1.15.0
-sortedcontainers==2.3.0
-toml==0.10.2
+six==1.16.0
+sortedcontainers==2.4.0
 tornado==6.1
-typing-extensions==3.7.4.3
-urllib3==1.26.5
+typing-extensions==3.10.0.0
+urllib3==1.26.6
 urwid==2.1.2
 wcwidth==0.2.5
-Werkzeug==1.0.1
+Werkzeug==2.0.1
 wsproto==1.0.0
 yarl==1.6.3
-zstandard==0.14.1
+zstandard==0.15.2