mirror of
https://github.com/Grasscutters/mitmproxy.git
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Merge pull request #1810 from Kriechi/construct
upgrade to construct 2.8 and new API
This commit is contained in:
Maximilian Hils
GitHub
commit
e44493bda5
@ -3,120 +3,122 @@
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# for complete details.
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from construct import (Array, Bytes, Struct, UBInt16, UBInt32, UBInt8, PascalString, Embed, TunnelAdapter, GreedyRange,
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Switch, OptionalGreedyRange, Optional)
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from .utils import UBInt24
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ProtocolVersion = Struct(
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"version",
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UBInt8("major"),
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UBInt8("minor"),
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from construct import (
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Array,
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Bytes,
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Struct,
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VarInt,
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Int8ub,
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Int16ub,
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Int24ub,
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Int32ub,
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PascalString,
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Embedded,
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Prefixed,
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Range,
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GreedyRange,
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Switch,
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Optional,
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)
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TLSPlaintext = Struct(
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"TLSPlaintext",
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UBInt8("type"),
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ProtocolVersion = "version" / Struct(
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"major" / Int8ub,
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"minor" / Int8ub,
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)
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TLSPlaintext = "TLSPlaintext" / Struct(
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"type" / Int8ub,
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ProtocolVersion,
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UBInt16("length"), # TODO: Reject packets with length > 2 ** 14
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Bytes("fragment", lambda ctx: ctx.length),
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"length" / Int16ub, # TODO: Reject packets with length > 2 ** 14
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"fragment" / Bytes(lambda ctx: ctx.length),
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)
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TLSCompressed = Struct(
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"TLSCompressed",
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UBInt8("type"),
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TLSCompressed = "TLSCompressed" / Struct(
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"type" / Int8ub,
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ProtocolVersion,
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UBInt16("length"), # TODO: Reject packets with length > 2 ** 14 + 1024
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Bytes("fragment", lambda ctx: ctx.length),
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"length" / Int16ub, # TODO: Reject packets with length > 2 ** 14 + 1024
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"fragment" / Bytes(lambda ctx: ctx.length),
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)
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TLSCiphertext = Struct(
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"TLSCiphertext",
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UBInt8("type"),
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TLSCiphertext = "TLSCiphertext" / Struct(
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"type" / Int8ub,
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ProtocolVersion,
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UBInt16("length"), # TODO: Reject packets with length > 2 ** 14 + 2048
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Bytes("fragment", lambda ctx: ctx.length),
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"length" / Int16ub, # TODO: Reject packets with length > 2 ** 14 + 2048
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"fragment" / Bytes(lambda ctx: ctx.length),
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)
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Random = Struct(
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"random",
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UBInt32("gmt_unix_time"),
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Bytes("random_bytes", 28),
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Random = "random" / Struct(
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"gmt_unix_time" / Int32ub,
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"random_bytes" / Bytes(28),
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)
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SessionID = Struct(
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"session_id",
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UBInt8("length"),
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Bytes("session_id", lambda ctx: ctx.length),
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SessionID = "session_id" / Struct(
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"length" / Int8ub,
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"session_id" / Bytes(lambda ctx: ctx.length),
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)
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CipherSuites = Struct(
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"cipher_suites",
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UBInt16("length"), # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length // 2, UBInt16("cipher_suites")),
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CipherSuites = "cipher_suites" / Struct(
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"length" / Int16ub, # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length // 2, "cipher_suites" / Int16ub),
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)
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CompressionMethods = Struct(
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"compression_methods",
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UBInt8("length"), # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length, UBInt8("compression_methods")),
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CompressionMethods = "compression_methods" / Struct(
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"length" / Int8ub, # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length, "compression_methods" / Int8ub),
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)
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ServerName = Struct(
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"",
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UBInt8("type"),
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PascalString("name", length_field=UBInt16("length")),
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"type" / Int8ub,
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"name" / PascalString("length" / Int16ub),
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)
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SNIExtension = Struct(
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"",
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TunnelAdapter(
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PascalString("server_names", length_field=UBInt16("length")),
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TunnelAdapter(
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PascalString("", length_field=UBInt16("length")),
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GreedyRange(ServerName)
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),
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),
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SNIExtension = Prefixed(
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Int16ub,
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Struct(
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Int16ub,
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"server_names" / GreedyRange(
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"server_name" / Struct(
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"name_type" / Int8ub,
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"host_name" / PascalString("length" / Int16ub),
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)
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)
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)
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)
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ALPNExtension = Struct(
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"",
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TunnelAdapter(
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PascalString("alpn_protocols", length_field=UBInt16("length")),
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TunnelAdapter(
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PascalString("", length_field=UBInt16("length")),
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GreedyRange(PascalString("name"))
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),
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ALPNExtension = Prefixed(
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Int16ub,
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Struct(
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Int16ub,
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"alpn_protocols" / GreedyRange(
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"name" / PascalString(Int8ub),
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),
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)
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)
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UnknownExtension = Struct(
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"",
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PascalString("bytes", length_field=UBInt16("extensions_length"))
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"bytes" / PascalString("length" / Int16ub)
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)
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Extension = Struct(
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"Extension",
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UBInt16("type"),
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Embed(
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Extension = "Extension" / Struct(
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"type" / Int16ub,
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Embedded(
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Switch(
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"", lambda ctx: ctx.type,
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lambda ctx: ctx.type,
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{
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0x00: SNIExtension,
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0x10: ALPNExtension
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0x10: ALPNExtension,
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},
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default=UnknownExtension
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)
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)
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)
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extensions = TunnelAdapter(
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Optional(PascalString("extensions", length_field=UBInt16("extensions_length"))),
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OptionalGreedyRange(Extension)
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extensions = "extensions" / Struct(
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Int16ub,
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"extensions" / GreedyRange(Extension)
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)
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ClientHello = Struct(
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"ClientHello",
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ClientHello = "ClientHello" / Struct(
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ProtocolVersion,
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Random,
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SessionID,
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@ -125,31 +127,27 @@ ClientHello = Struct(
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extensions,
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)
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ServerHello = Struct(
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"ServerHello",
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ServerHello = "ServerHello" / Struct(
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ProtocolVersion,
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Random,
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SessionID,
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Bytes("cipher_suite", 2),
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UBInt8("compression_method"),
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"cipher_suite" / Bytes(2),
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"compression_method" / Int8ub,
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extensions,
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)
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ClientCertificateType = Struct(
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"certificate_types",
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UBInt8("length"), # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length, UBInt8("certificate_types")),
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ClientCertificateType = "certificate_types" / Struct(
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"length" / Int8ub, # TODO: Reject packets of length 0
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Array(lambda ctx: ctx.length, "certificate_types" / Int8ub),
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)
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SignatureAndHashAlgorithm = Struct(
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"algorithms",
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UBInt8("hash"),
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UBInt8("signature"),
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SignatureAndHashAlgorithm = "algorithms" / Struct(
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"hash" / Int8ub,
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"signature" / Int8ub,
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)
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SupportedSignatureAlgorithms = Struct(
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"supported_signature_algorithms",
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UBInt16("supported_signature_algorithms_length"),
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SupportedSignatureAlgorithms = "supported_signature_algorithms" / Struct(
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"supported_signature_algorithms_length" / Int16ub,
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# TODO: Reject packets of length 0
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Array(
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lambda ctx: ctx.supported_signature_algorithms_length / 2,
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@ -157,56 +155,49 @@ SupportedSignatureAlgorithms = Struct(
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),
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)
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DistinguishedName = Struct(
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"certificate_authorities",
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UBInt16("length"),
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Bytes("certificate_authorities", lambda ctx: ctx.length),
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DistinguishedName = "certificate_authorities" / Struct(
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"length" / Int16ub,
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"certificate_authorities" / Bytes(lambda ctx: ctx.length),
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)
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CertificateRequest = Struct(
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"CertificateRequest",
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CertificateRequest = "CertificateRequest" / Struct(
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ClientCertificateType,
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SupportedSignatureAlgorithms,
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DistinguishedName,
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)
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ServerDHParams = Struct(
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"ServerDHParams",
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UBInt16("dh_p_length"),
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Bytes("dh_p", lambda ctx: ctx.dh_p_length),
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UBInt16("dh_g_length"),
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Bytes("dh_g", lambda ctx: ctx.dh_g_length),
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UBInt16("dh_Ys_length"),
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Bytes("dh_Ys", lambda ctx: ctx.dh_Ys_length),
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ServerDHParams = "ServerDHParams" / Struct(
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"dh_p_length" / Int16ub,
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"dh_p" / Bytes(lambda ctx: ctx.dh_p_length),
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"dh_g_length" / Int16ub,
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"dh_g" / Bytes(lambda ctx: ctx.dh_g_length),
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"dh_Ys_length" / Int16ub,
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"dh_Ys" / Bytes(lambda ctx: ctx.dh_Ys_length),
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)
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PreMasterSecret = Struct(
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"pre_master_secret",
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PreMasterSecret = "pre_master_secret" / Struct(
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ProtocolVersion,
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Bytes("random_bytes", 46),
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"random_bytes" / Bytes(46),
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)
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ASN1Cert = Struct(
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"ASN1Cert",
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UBInt32("length"), # TODO: Reject packets with length not in 1..2^24-1
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Bytes("asn1_cert", lambda ctx: ctx.length),
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ASN1Cert = "ASN1Cert" / Struct(
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"length" / Int32ub, # TODO: Reject packets with length not in 1..2^24-1
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"asn1_cert" / Bytes(lambda ctx: ctx.length),
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)
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Certificate = Struct(
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"Certificate", # TODO: Reject packets with length > 2 ** 24 - 1
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UBInt32("certificates_length"),
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Bytes("certificates_bytes", lambda ctx: ctx.certificates_length),
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Certificate = "Certificate" / Struct(
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# TODO: Reject packets with length > 2 ** 24 - 1
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"certificates_length" / Int32ub,
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"certificates_bytes" / Bytes(lambda ctx: ctx.certificates_length),
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)
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Handshake = Struct(
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"Handshake",
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UBInt8("msg_type"),
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UBInt24("length"),
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Bytes("body", lambda ctx: ctx.length),
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Handshake = "Handshake" / Struct(
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"msg_type" / Int8ub,
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"length" / Int24ub,
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"body" / Bytes(lambda ctx: ctx.length),
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)
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Alert = Struct(
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"Alert",
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UBInt8("level"),
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UBInt8("description"),
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Alert = "Alert" / Struct(
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"level" / Int8ub,
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"description" / Int8ub,
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)
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@ -1,22 +0,0 @@
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# This file is dual licensed under the terms of the Apache License, Version
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# 2.0, and the BSD License. See the LICENSE file in the root of this repository
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# for complete details.
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import construct
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class _UBInt24(construct.Adapter):
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def _encode(self, obj, context):
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return bytes(
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(obj & 0xFF0000) >> 16,
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(obj & 0x00FF00) >> 8,
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obj & 0x0000FF
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)
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def _decode(self, obj, context):
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obj = bytearray(obj)
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return (obj[0] << 16 | obj[1] << 8 | obj[2])
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def UBInt24(name): # noqa
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return _UBInt24(construct.Bytes(name, 3))
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@ -259,19 +259,19 @@ class TlsClientHello:
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@property
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def sni(self):
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for extension in self._client_hello.extensions:
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for extension in self._client_hello.extensions.extensions:
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is_valid_sni_extension = (
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extension.type == 0x00 and
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len(extension.server_names) == 1 and
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extension.server_names[0].type == 0 and
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check.is_valid_host(extension.server_names[0].name)
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extension.server_names[0].name_type == 0 and
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check.is_valid_host(extension.server_names[0].host_name)
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)
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if is_valid_sni_extension:
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return extension.server_names[0].name.decode("idna")
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return extension.server_names[0].host_name.decode("idna")
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@property
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def alpn_protocols(self):
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for extension in self._client_hello.extensions:
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for extension in self._client_hello.extensions.extensions:
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if extension.type == 0x10:
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return list(extension.alpn_protocols)
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2
setup.py
2
setup.py
@ -63,7 +63,7 @@ setup(
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"click>=6.2, <7.0",
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"certifi>=2015.11.20.1", # no semver here - this should always be on the last release!
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"configargparse>=0.10, <0.12",
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"construct>=2.5.2, <2.6",
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"construct>=2.8, <2.9",
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"cryptography>=1.3, <1.7",
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"cssutils>=1.0.1, <1.1",
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"Flask>=0.10.1, <0.12",
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