Fix no_proxy IPv6 CIDR crash in get_environment_proxies#967
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no_proxy=fe80::/10 (or any IPv6 CIDR) crashed Client() construction because get_environment_proxies() bracketed the whole string including the CIDR suffix, producing the invalid URL pattern "all://[fe80::/10]". Bracket only the address portion and append the suffix outside the brackets. Closes pydantic#899. Upstream: https://github.com/encode/httpx/issues/3574
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Setting no_proxy patterns matched by hostname string comparison. So 192.168.0.1 would not match all://192.168.0.0/16. Add IPNetPattern, backed by ipaddress.ip_network, and a build_url_pattern() factory that returns IPNetPattern for all:// patterns containing a slash and WildcardURLPattern otherwise. Introduce a Pattern protocol so Client and AsyncClient can hold either kind in their _mounts dict. URLPattern is kept as a backward-compatible alias for WildcardURLPattern. Together with pydantic#967 will close - pydantic#829 - pydantic#899 Ported from encode/httpx#3741. Co-Authored-By: Ondrej Filip <ondrej.filip@firma.seznam.cz> Co-Authored-By: Bill Peck <bpeck@redhat.com>
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no_proxy=fe80::/10 (or any IPv6 CIDR) crashed Client() construction because get_environment_proxies() bracketed the whole string including the CIDR suffix, producing the invalid URL pattern "all://[fe80::/10]". Bracket only the address portion and append the suffix outside the brackets.
Closes #899.
Upstream: https://github.com/encode/httpx/issues/3574