feat: implement basic forward proxy using CONNECT
This commit is contained in:
parent
3b5034440b
commit
9114da42d7
293
Cargo.lock
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293
Cargo.lock
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@ -0,0 +1,293 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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[[package]]
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name = "autocfg"
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version = "1.0.1"
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||||||
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cdb031dd78e28731d87d56cc8ffef4a8f36ca26c38fe2de700543e627f8a464a"
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[[package]]
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name = "bitflags"
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version = "1.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
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[[package]]
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name = "bytes"
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version = "1.0.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "b700ce4376041dcd0a327fd0097c41095743c4c8af8887265942faf1100bd040"
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[[package]]
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name = "cfg-if"
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version = "1.0.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
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[[package]]
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name = "hermit-abi"
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version = "0.1.18"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "322f4de77956e22ed0e5032c359a0f1273f1f7f0d79bfa3b8ffbc730d7fbcc5c"
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dependencies = [
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"libc",
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]
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[[package]]
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name = "httparse"
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version = "1.3.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "615caabe2c3160b313d52ccc905335f4ed5f10881dd63dc5699d47e90be85691"
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[[package]]
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name = "instant"
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version = "0.1.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "61124eeebbd69b8190558df225adf7e4caafce0d743919e5d6b19652314ec5ec"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "libc"
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version = "0.2.88"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "03b07a082330a35e43f63177cc01689da34fbffa0105e1246cf0311472cac73a"
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[[package]]
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name = "lock_api"
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version = "0.4.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dd96ffd135b2fd7b973ac026d28085defbe8983df057ced3eb4f2130b0831312"
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dependencies = [
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"scopeguard",
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]
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[[package]]
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name = "log"
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version = "0.4.14"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "51b9bbe6c47d51fc3e1a9b945965946b4c44142ab8792c50835a980d362c2710"
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dependencies = [
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"cfg-if",
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]
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[[package]]
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name = "memchr"
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version = "2.3.4"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
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[[package]]
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name = "mio"
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version = "0.7.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "a5dede4e2065b3842b8b0af444119f3aa331cc7cc2dd20388bfb0f5d5a38823a"
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dependencies = [
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"libc",
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"log",
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"miow",
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"ntapi",
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"winapi",
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]
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[[package]]
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name = "miow"
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version = "0.3.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5a33c1b55807fbed163481b5ba66db4b2fa6cde694a5027be10fb724206c5897"
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dependencies = [
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"socket2",
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"winapi",
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]
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[[package]]
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name = "ntapi"
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version = "0.3.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3f6bb902e437b6d86e03cce10a7e2af662292c5dfef23b65899ea3ac9354ad44"
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dependencies = [
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"winapi",
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]
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[[package]]
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name = "num_cpus"
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version = "1.13.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "05499f3756671c15885fee9034446956fff3f243d6077b91e5767df161f766b3"
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dependencies = [
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"hermit-abi",
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"libc",
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]
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[[package]]
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name = "once_cell"
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version = "1.7.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "af8b08b04175473088b46763e51ee54da5f9a164bc162f615b91bc179dbf15a3"
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[[package]]
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name = "parking_lot"
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version = "0.11.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "6d7744ac029df22dca6284efe4e898991d28e3085c706c972bcd7da4a27a15eb"
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dependencies = [
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"instant",
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"lock_api",
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"parking_lot_core",
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]
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[[package]]
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name = "parking_lot_core"
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version = "0.8.3"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fa7a782938e745763fe6907fc6ba86946d72f49fe7e21de074e08128a99fb018"
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dependencies = [
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"cfg-if",
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"instant",
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"libc",
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"redox_syscall",
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"smallvec",
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"winapi",
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]
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[[package]]
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name = "pin-project-lite"
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version = "0.2.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "dc0e1f259c92177c30a4c9d177246edd0a3568b25756a977d0632cf8fa37e905"
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[[package]]
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name = "proc-macro2"
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version = "1.0.24"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "1e0704ee1a7e00d7bb417d0770ea303c1bccbabf0ef1667dae92b5967f5f8a71"
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dependencies = [
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"unicode-xid",
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]
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[[package]]
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name = "quote"
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version = "1.0.9"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c3d0b9745dc2debf507c8422de05d7226cc1f0644216dfdfead988f9b1ab32a7"
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dependencies = [
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"proc-macro2",
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]
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[[package]]
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name = "redox_syscall"
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version = "0.2.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "94341e4e44e24f6b591b59e47a8a027df12e008d73fd5672dbea9cc22f4507d9"
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dependencies = [
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"bitflags",
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]
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[[package]]
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name = "scopeguard"
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version = "1.1.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
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[[package]]
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name = "signal-hook-registry"
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version = "1.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||||
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checksum = "16f1d0fef1604ba8f7a073c7e701f213e056707210e9020af4528e0101ce11a6"
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||||||
|
dependencies = [
|
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"libc",
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]
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[[package]]
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name = "smallvec"
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version = "1.6.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fe0f37c9e8f3c5a4a66ad655a93c74daac4ad00c441533bf5c6e7990bb42604e"
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[[package]]
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name = "socket2"
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version = "0.3.19"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "122e570113d28d773067fab24266b66753f6ea915758651696b6e35e49f88d6e"
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dependencies = [
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"cfg-if",
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"libc",
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"winapi",
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]
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[[package]]
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name = "syn"
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version = "1.0.64"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "3fd9d1e9976102a03c542daa2eff1b43f9d72306342f3f8b3ed5fb8908195d6f"
|
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|
dependencies = [
|
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|
"proc-macro2",
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|
"quote",
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"unicode-xid",
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]
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[[package]]
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name = "tls-forward-proxy"
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version = "0.1.0"
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dependencies = [
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"httparse",
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"tokio",
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]
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[[package]]
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name = "tokio"
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version = "1.2.0"
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source = "git+https://github.com/conblem/tokio/?branch=bidi_copy#6fe69cd16aa24623697f5f44ce4c6fabe85245b2"
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dependencies = [
|
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"autocfg",
|
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"bytes",
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"libc",
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"memchr",
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"mio",
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"num_cpus",
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"once_cell",
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"parking_lot",
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"pin-project-lite",
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"signal-hook-registry",
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"tokio-macros",
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"winapi",
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]
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[[package]]
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name = "tokio-macros"
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version = "1.1.0"
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source = "git+https://github.com/conblem/tokio?branch=bidi_copy#6fe69cd16aa24623697f5f44ce4c6fabe85245b2"
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|
dependencies = [
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"proc-macro2",
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"quote",
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"syn",
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]
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[[package]]
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name = "unicode-xid"
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version = "0.2.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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|
checksum = "f7fe0bb3479651439c9112f72b6c505038574c9fbb575ed1bf3b797fa39dd564"
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|
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|
[[package]]
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|
name = "winapi"
|
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version = "0.3.9"
|
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
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dependencies = [
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|
"winapi-i686-pc-windows-gnu",
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"winapi-x86_64-pc-windows-gnu",
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]
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[[package]]
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name = "winapi-i686-pc-windows-gnu"
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version = "0.4.0"
|
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|
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
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[[package]]
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name = "winapi-x86_64-pc-windows-gnu"
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version = "0.4.0"
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|
source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
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@ -7,3 +7,6 @@ edition = "2018"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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[dependencies]
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# tokio = { version = "1", features = ["full"] }
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tokio = { git = "https://github.com/conblem/tokio", branch = "bidi_copy", features = ["full"] }
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httparse = "1.3.4"
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125
src/main.rs
125
src/main.rs
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fn main() {
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use std::net::SocketAddr;
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println!("Hello, world!");
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use tokio::net::{TcpListener,TcpStream};
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use tokio::io::{copy_bidirectional};
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use std::error::Error;
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use std::{str, io};
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use httparse::Request;
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async fn read(stream: &TcpStream, buf: &mut Vec<u8>) -> Result<(), Box<dyn Error>> {
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loop {
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// Wait for the socket to be readable
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stream.readable().await?;
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// Try to read data, this may still fail with `WouldBlock`
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// if the readiness event is a false positive.
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match stream.try_read(buf) {
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Ok(n) => {
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buf.truncate(n);
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break;
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}
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Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => {
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continue;
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}
|
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Err(e) => {
|
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println!("error reading from stream: {:#?}", e);
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||||||
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return Err(e.into());
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||||||
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}
|
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}
|
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}
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Ok(())
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}
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async fn write(stream: &TcpStream, buf: &[u8]) -> Result<(), Box<dyn Error>> {
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loop {
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// Wait for the socket to be writable
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stream.writable().await?;
|
||||||
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|
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// Try to write data, this may still fail with `WouldBlock`
|
||||||
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// if the readiness event is a false positive.
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||||||
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match stream.try_write(buf) {
|
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Ok(_) => {
|
||||||
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break;
|
||||||
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}
|
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Err(ref e) if e.kind() == io::ErrorKind::WouldBlock => {
|
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continue;
|
||||||
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}
|
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Err(e) => {
|
||||||
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println!("error writing to stream: {:#?}", e);
|
||||||
|
return Err(e.into());
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
async fn proxy(mut incoming: TcpStream) -> Result<(), Box<dyn Error>> {
|
||||||
|
let mut buf = vec![0; 1024];
|
||||||
|
read(&incoming, &mut buf).await.unwrap();
|
||||||
|
|
||||||
|
let mut headers = [httparse::EMPTY_HEADER; 16];
|
||||||
|
let mut req = Request::new(&mut headers);
|
||||||
|
req.parse(&buf).unwrap();
|
||||||
|
|
||||||
|
println!("buf {:#?}", str::from_utf8(&buf)?);
|
||||||
|
|
||||||
|
match (req.method, req.path) {
|
||||||
|
(Some("CONNECT"), Some(ref path)) => {
|
||||||
|
println!("CONNECT {:#?}", path);
|
||||||
|
let mut outgoing = TcpStream::connect(path).await?;
|
||||||
|
|
||||||
|
write(&incoming, b"HTTP/1.1 200 OK\r\n\r\n").await?;
|
||||||
|
|
||||||
|
copy_bidirectional(&mut incoming, &mut outgoing).await?;
|
||||||
|
|
||||||
|
/* A naive implementation of a bidirectional copy:
|
||||||
|
* I am actually concerned about this implementation since both reads happen at the
|
||||||
|
* same time, if in any case two streams are writing at the same time, some of the data
|
||||||
|
* of one of those writes might get discarded.
|
||||||
|
*
|
||||||
|
* let mut tmp = vec![0; 1024];
|
||||||
|
* let mut tmp2 = vec![0; 1024];
|
||||||
|
* loop {
|
||||||
|
* let r = select! {
|
||||||
|
* _ = read(&mut incoming, &mut tmp).fuse() =>
|
||||||
|
* write(&mut outgoing, &tmp).fuse(),
|
||||||
|
* _ = read(&mut outgoing, &mut tmp2).fuse() =>
|
||||||
|
* write(&mut incoming, &tmp2).fuse()
|
||||||
|
* };
|
||||||
|
|
||||||
|
* r.await?
|
||||||
|
* }
|
||||||
|
*/
|
||||||
|
}
|
||||||
|
|
||||||
|
_ => {
|
||||||
|
println!("Not What I Expected!!");
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
#[tokio::main]
|
||||||
|
async fn main() -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
|
||||||
|
// We'll bind to 127.0.0.1:3000
|
||||||
|
let addr = SocketAddr::from(([127, 0, 0, 1], 8080));
|
||||||
|
println!("Listening on {:#?}", addr);
|
||||||
|
|
||||||
|
let tcp_listener = TcpListener::bind(addr).await?;
|
||||||
|
loop {
|
||||||
|
let (tcp_stream, _) = tcp_listener.accept().await?;
|
||||||
|
tokio::task::spawn(async move {
|
||||||
|
match proxy(tcp_stream).await {
|
||||||
|
Ok(()) => {
|
||||||
|
println!("One socket processed successfully.");
|
||||||
|
}
|
||||||
|
Err(e) => {
|
||||||
|
println!("error: {:#?}", e);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
});
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
|||||||
Loading…
Reference in New Issue
Block a user