Refactor project

Cargo.lock

@@ -2,6 +2,33 @@
 # It is not intended for manual editing.
 version = 4
 
+[[package]]
+name = "addr2line"
+version = "0.24.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dfbe277e56a376000877090da837660b4427aad530e3028d44e0bffe4f89a1c1"
+dependencies = [
+ "gimli",
+]
+
+[[package]]
+name = "adler2"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "512761e0bb2578dd7380c6baaa0f4ce03e84f95e960231d1dec8bf4d7d6e2627"
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e89da841a80418a9b391ebaea17f5c112ffaaa96f621d2c285b5174da76b9011"
+dependencies = [
+ "cfg-if",
+ "once_cell",
+ "version_check",
+ "zerocopy",
+]
+
 [[package]]
 name = "aho-corasick"
 version = "1.1.3"
@@ -11,6 +38,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "allocator-api2"
+version = "0.2.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "683d7910e743518b0e34f1186f92494becacb047c7b6bf616c96772180fef923"
+
 [[package]]
 name = "anstream"
 version = "0.6.18"
@@ -67,18 +100,102 @@ version = "1.0.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dcfed56ad506cb2c684a14971b8861fdc3baaaae314b9e5f9bb532cbe3ba7a4f"
 
+[[package]]
+name = "async-trait"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d556ec1359574147ec0c4fc5eb525f3f23263a592b1a9c07e0a75b427de55c97"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "autocfg"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ace50bade8e6234aa140d9a2f552bbee1db4d353f69b8217bc503490fc1a9f26"
+
+[[package]]
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+version = "0.3.74"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d82cb332cdfaed17ae235a638438ac4d4839913cc2af585c3c6746e8f8bee1a"
+dependencies = [
+ "addr2line",
+ "cfg-if",
+ "libc",
+ "miniz_oxide",
+ "object",
+ "rustc-demangle",
+ "windows-targets",
+]
+
 [[package]]
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 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "72b3254f16251a8381aa12e40e3c4d2f0199f8c6508fbecb9d91f575e0fbb8c6"
 
+[[package]]
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+version = "2.9.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c8214115b7bf84099f1309324e63141d4c5d7cc26862f97a0a857dbefe165bd"
+
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bc2832c24239b0141d5674bb9174f9d68a8b5b3f2753311927c172ca46f7e9c"
+dependencies = [
+ "funty",
+ "radium",
+ "tap",
+ "wyz",
+]
+
+[[package]]
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+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d988fcc40055ceaa85edc55875a08f8abd29018582647fd82ad6128dba14a5f0"
+dependencies = [
+ "bitvec",
+ "nom",
+]
+
+[[package]]
+name = "block-buffer"
+version = "0.10.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3078c7629b62d3f0439517fa394996acacc5cbc91c5a20d8c658e77abd503a71"
+dependencies = [
+ "generic-array",
+]
+
 [[package]]
 name = "bytes"
 version = "1.10.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f61dac84819c6588b558454b194026eb1f09c293b9036ae9b159e74e73ab6cf9"
 
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "chrono"
+version = "0.4.40"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a7964611d71df112cb1730f2ee67324fcf4d0fc6606acbbe9bfe06df124637c"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "clap"
 version = "4.5.31"
@@ -125,6 +242,44 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
 
+[[package]]
+name = "colored"
+version = "3.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fde0e0ec90c9dfb3b4b1a0891a7dcd0e2bffde2f7efed5fe7c9bb00e5bfb915e"
+dependencies = [
+ "windows-sys",
+]
+
+[[package]]
+name = "cpufeatures"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59ed5838eebb26a2bb2e58f6d5b5316989ae9d08bab10e0e6d103e656d1b0280"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "crypto-common"
+version = "0.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1bfb12502f3fc46cca1bb51ac28df9d618d813cdc3d2f25b9fe775a34af26bb3"
+dependencies = [
+ "generic-array",
+ "typenum",
+]
+
+[[package]]
+name = "digest"
+version = "0.10.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9ed9a281f7bc9b7576e61468ba615a66a5c8cfdff42420a70aa82701a3b1e292"
+dependencies = [
+ "block-buffer",
+ "crypto-common",
+]
+
 [[package]]
 name = "displaydoc"
 version = "0.2.5"
@@ -136,6 +291,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "either"
+version = "1.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "48c757948c5ede0e46177b7add2e67155f70e33c07fea8284df6576da70b3719"
+
 [[package]]
 name = "env_filter"
 version = "0.1.3"
@@ -174,12 +335,62 @@ dependencies = [
  "percent-encoding",
 ]
 
+[[package]]
+name = "funty"
+version = "2.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6d5a32815ae3f33302d95fdcb2ce17862f8c65363dcfd29360480ba1001fc9c"
+
+[[package]]
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+version = "0.14.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "85649ca51fd72272d7821adaf274ad91c288277713d9c18820d8499a7ff69e9a"
+dependencies = [
+ "typenum",
+ "version_check",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43a49c392881ce6d5c3b8cb70f98717b7c07aabbdff06687b9030dbfbe2725f8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+ "windows-targets",
+]
+
+[[package]]
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+version = "0.31.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07e28edb80900c19c28f1072f2e8aeca7fa06b23cd4169cefe1af5aa3260783f"
+
+[[package]]
+name = "hashbrown"
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e5274423e17b7c9fc20b6e7e208532f9b19825d82dfd615708b70edd83df41f1"
+dependencies = [
+ "ahash",
+ "allocator-api2",
+]
+
 [[package]]
 name = "heck"
 version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "http"
 version = "1.2.0"
@@ -342,12 +553,27 @@ version = "1.70.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
 
+[[package]]
+name = "itertools"
+version = "0.13.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "413ee7dfc52ee1a4949ceeb7dbc8a33f2d6c088194d9f922fb8318faf1f01186"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itoa"
 version = "1.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4a5f13b858c8d314ee3e8f639011f7ccefe71f97f96e50151fb991f267928e2c"
 
+[[package]]
+name = "libc"
+version = "0.2.170"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "875b3680cb2f8f71bdcf9a30f38d48282f5d3c95cbf9b3fa57269bb5d5c06828"
+
 [[package]]
 name = "litemap"
 version = "0.7.5"
@@ -366,6 +592,68 @@ version = "2.7.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "78ca9ab1a0babb1e7d5695e3530886289c18cf2f87ec19a575a0abdce112e3a3"
 
+[[package]]
+name = "minimal-lexical"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "68354c5c6bd36d73ff3feceb05efa59b6acb7626617f4962be322a825e61f79a"
+
+[[package]]
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+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e3e04debbb59698c15bacbb6d93584a8c0ca9cc3213cb423d31f760d8843ce5"
+dependencies = [
+ "adler2",
+]
+
+[[package]]
+name = "nom"
+version = "7.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d273983c5a657a70a3e8f2a01329822f3b8c8172b73826411a55751e404a0a4a"
+dependencies = [
+ "memchr",
+ "minimal-lexical",
+]
+
+[[package]]
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+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a5e44f723f1133c9deac646763579fdb3ac745e418f2a7af9cd0c431da1f20b9"
+dependencies = [
+ "num-integer",
+ "num-traits",
+]
+
+[[package]]
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+version = "0.1.46"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7969661fd2958a5cb096e56c8e1ad0444ac2bbcd0061bd28660485a44879858f"
+dependencies = [
+ "num-traits",
+]
+
+[[package]]
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+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "071dfc062690e90b734c0b2273ce72ad0ffa95f0c74596bc250dcfd960262841"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "object"
+version = "0.36.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62948e14d923ea95ea2c7c86c71013138b66525b86bdc08d2dcc262bdb497b87"
+dependencies = [
+ "memchr",
+]
+
 [[package]]
 name = "once_cell"
 version = "1.20.3"
@@ -378,6 +666,12 @@ version = "2.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "e3148f5046208a5d56bcfc03053e3ca6334e51da8dfb19b6cdc8b306fae3283e"
 
+[[package]]
+name = "pin-project-lite"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3b3cff922bd51709b605d9ead9aa71031d81447142d828eb4a6eba76fe619f9b"
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.94"
@@ -396,6 +690,59 @@ dependencies = [
  "proc-macro2",
 ]
 
+[[package]]
+name = "radium"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dc33ff2d4973d518d823d61aa239014831e521c75da58e3df4840d3f47749d09"
+
+[[package]]
+name = "rasn"
+version = "0.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3dc2d7ef9630c50239937d1eeb07e4fd3129c016441c5276b087f7975eb4e2c2"
+dependencies = [
+ "bitvec",
+ "bitvec-nom2",
+ "bytes",
+ "chrono",
+ "either",
+ "hashbrown",
+ "nom",
+ "num-bigint",
+ "num-integer",
+ "num-traits",
+ "once_cell",
+ "rasn-derive",
+ "serde_json",
+ "snafu",
+]
+
+[[package]]
+name = "rasn-derive"
+version = "0.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9d5c332ddd8ace677cf246699782a34b79cbfa484c73523578f3c7d883dc8813"
+dependencies = [
+ "proc-macro2",
+ "rasn-derive-impl",
+ "syn",
+]
+
+[[package]]
+name = "rasn-derive-impl"
+version = "0.24.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6cb5b4227db5fc7d1743a6089f4f43617b76b636d2d4293aade6144bc64a4c90"
+dependencies = [
+ "either",
+ "itertools",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "uuid",
+]
+
 [[package]]
 name = "regex"
 version = "1.11.1"
@@ -425,6 +772,18 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b15c43186be67a4fd63bee50d0303afffcef381492ebe2c5d87f324e1b8815c"
 
+[[package]]
+name = "rustc-demangle"
+version = "0.1.24"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "719b953e2095829ee67db738b3bfa9fa368c94900df327b3f07fe6e794d2fe1f"
+
+[[package]]
+name = "ryu"
+version = "1.0.20"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "28d3b2b1366ec20994f1fd18c3c594f05c5dd4bc44d8bb0c1c632c8d6829481f"
+
 [[package]]
 name = "scep_req_parser"
 version = "0.1.0"
@@ -432,9 +791,12 @@ dependencies = [
  "anyhow",
  "base64",
  "clap",
+ "colored",
  "env_logger",
  "http",
  "log",
+ "rasn",
+ "sha256",
  "url",
 ]
 
@@ -458,12 +820,69 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "serde_json"
+version = "1.0.140"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "20068b6e96dc6c9bd23e01df8827e6c7e1f2fddd43c21810382803c136b99373"
+dependencies = [
+ "itoa",
+ "memchr",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "sha2"
+version = "0.10.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "793db75ad2bcafc3ffa7c68b215fee268f537982cd901d132f89c6343f3a3dc8"
+dependencies = [
+ "cfg-if",
+ "cpufeatures",
+ "digest",
+]
+
+[[package]]
+name = "sha256"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f880fc8562bdeb709793f00eb42a2ad0e672c4f883bbe59122b926eca935c8f6"
+dependencies = [
+ "async-trait",
+ "bytes",
+ "hex",
+ "sha2",
+ "tokio",
+]
+
 [[package]]
 name = "smallvec"
 version = "1.14.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7fcf8323ef1faaee30a44a340193b1ac6814fd9b7b4e88e9d4519a3e4abe1cfd"
 
+[[package]]
+name = "snafu"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "223891c85e2a29c3fe8fb900c1fae5e69c2e42415e3177752e8718475efa5019"
+dependencies = [
+ "snafu-derive",
+]
+
+[[package]]
+name = "snafu-derive"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03c3c6b7927ffe7ecaa769ee0e3994da3b8cafc8f444578982c83ecb161af917"
+dependencies = [
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "stable_deref_trait"
 version = "1.2.0"
@@ -498,6 +917,12 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "tap"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "55937e1799185b12863d447f42597ed69d9928686b8d88a1df17376a097d8369"
+
 [[package]]
 name = "tinystr"
 version = "0.7.6"
@@ -508,6 +933,23 @@ dependencies = [
  "zerovec",
 ]
 
+[[package]]
+name = "tokio"
+version = "1.43.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d61fa4ffa3de412bfea335c6ecff681de2b609ba3c77ef3e00e521813a9ed9e"
+dependencies = [
+ "backtrace",
+ "bytes",
+ "pin-project-lite",
+]
+
+[[package]]
+name = "typenum"
+version = "1.18.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1dccffe3ce07af9386bfd29e80c0ab1a8205a2fc34e4bcd40364df902cfa8f3f"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.18"
@@ -543,6 +985,30 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
+[[package]]
+name = "uuid"
+version = "1.15.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e0f540e3240398cce6128b64ba83fdbdd86129c16a3aa1a3a252efd66eb3d587"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "version_check"
+version = "0.9.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b928f33d975fc6ad9f86c8f283853ad26bdd5b10b7f1542aa2fa15e2289105a"
+
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+version = "0.13.3+wasi-0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26816d2e1a4a36a2940b96c5296ce403917633dff8f3440e9b236ed6f6bacad2"
+dependencies = [
+ "wit-bindgen-rt",
+]
+
 [[package]]
 name = "windows-sys"
 version = "0.59.0"
@@ -616,6 +1082,15 @@ version = "0.52.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
 
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3268f3d866458b787f390cf61f4bbb563b922d091359f9608842999eaee3943c"
+dependencies = [
+ "bitflags",
+]
+
 [[package]]
 name = "write16"
 version = "1.0.0"
@@ -628,6 +1103,15 @@ version = "0.5.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e9df38ee2d2c3c5948ea468a8406ff0db0b29ae1ffde1bcf20ef305bcc95c51"
 
+[[package]]
+name = "wyz"
+version = "0.5.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05f360fc0b24296329c78fda852a1e9ae82de9cf7b27dae4b7f62f118f77b9ed"
+dependencies = [
+ "tap",
+]
+
 [[package]]
 name = "yoke"
 version = "0.7.5"
@@ -652,6 +1136,26 @@ dependencies = [
  "synstructure",
 ]
 
+[[package]]
+name = "zerocopy"
+version = "0.7.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
+dependencies = [
+ "zerocopy-derive",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.7.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "zerofrom"
 version = "0.1.6"

Cargo.toml

@@ -10,4 +10,7 @@ clap = { version = "4.5.31", features = ["derive", "env"] }
 http = { version = "1.2.0" }
 anyhow = "1.0.97"
 url = "2.5.4"
-base64 = "0.22.1"
+base64 = "0.22.1"
+sha256 = "1.6.0"
+colored = "3.0.0"
+rasn = "0.24.0"

src/asn_parsing.rs

@@ -0,0 +1,7 @@
+#[derive(Debug)]
+pub struct SCEPEnveloppedPayload {}
+
+/// Decode SCEP request
+pub fn decode_request(req: &[u8]) -> anyhow::Result<SCEPEnveloppedPayload> {
+    todo!()
+}

src/http_decoder.rs

@@ -0,0 +1,87 @@
+use std::str::FromStr;
+use http::StatusCode;
+
+/// Find a byte position in an array of bytes
+fn find_in_bytes(haystack: &[u8], needle: u8) -> Option<usize> {
+    haystack.iter().position(|&x| x == needle)
+}
+
+/// Parse HTTP request
+pub fn parse_request(req: &[u8]) -> anyhow::Result<http::Request<Vec<u8>>> {
+    // Extract first list
+    let first_line_end = find_in_bytes(req, b'\r').expect("No newline found in req");
+    let first_line = String::from_utf8_lossy(&req[..first_line_end]);
+    let first_line = first_line.split(' ').collect::<Vec<_>>();
+    let method = first_line[0];
+    let uri = first_line[1];
+    //let version = first_line[2];
+
+    let mut builder = http::Request::builder()
+        .method(http::method::Method::from_str(method)?)
+        .uri(uri)
+        .version(http::version::Version::HTTP_10); // FIXME: parse version properly
+
+    let mut remainder = &req[first_line_end + 2..];
+
+    // Parse following lines
+    while remainder.len() > 2 {
+        let line_end =
+            find_in_bytes(remainder, b'\r').expect("No newline found while parsing headers");
+
+        if line_end == 0 {
+            break;
+        }
+
+        let line = String::from_utf8_lossy(&remainder[..line_end]);
+
+        let (key, value) = line.split_once(": ").unwrap();
+        builder = builder.header(key, value);
+
+        remainder = &remainder[line_end + 2..];
+    }
+
+    if remainder.len() > 2 {
+        Ok(builder.body(remainder[2..].to_vec())?)
+    } else {
+        Ok(builder.body(Vec::new())?)
+    }
+}
+
+/// Parse HTTP response
+pub fn parse_response(req: &[u8]) -> anyhow::Result<http::Response<Vec<u8>>> {
+    // Extract first list
+    let first_line_end = find_in_bytes(req, b'\r').expect("No newline found in req");
+    let first_line = String::from_utf8_lossy(&req[..first_line_end]);
+    let first_line = first_line.split(' ').collect::<Vec<_>>();
+    // let version = first_line[0];
+    let status = first_line[1].parse::<u16>()?;
+
+    let mut builder = http::Response::builder()
+        .status(StatusCode::from_u16(status)?)
+        .version(http::version::Version::HTTP_10); // FIXME: parse version properly
+
+    let mut remainder = &req[first_line_end + 2..];
+
+    // Parse following lines
+    while remainder.len() > 2 {
+        let line_end =
+            find_in_bytes(remainder, b'\r').expect("No newline found while parsing headers");
+
+        if line_end == 0 {
+            break;
+        }
+
+        let line = String::from_utf8_lossy(&remainder[..line_end]);
+
+        let (key, value) = line.split_once(": ").unwrap();
+        builder = builder.header(key, value);
+
+        remainder = &remainder[line_end + 2..];
+    }
+
+    if remainder.len() > 2 {
+        Ok(builder.body(remainder[2..].to_vec())?)
+    } else {
+        Ok(builder.body(Vec::new())?)
+    }
+}

src/lib.rs

@@ -0,0 +1,2 @@
+pub mod http_decoder;
+pub mod asn_parsing;

src/main.rs

@@ -1,12 +1,11 @@
 use clap::Parser;
-use http::StatusCode;
 use std::collections::HashMap;
-use std::str::FromStr;
-use base64::alphabet::STANDARD;
 use url::Url;
 use base64::prelude::*;
-use base64::Engine as _;
 use base64::engine::general_purpose::URL_SAFE as BASE64_URL_URL_SAFE;
+use colored::Colorize;
+use scep_req_parser::asn_parsing::decode_request;
+use scep_req_parser::http_decoder::{parse_request, parse_response};
 
 /// Simple SCEP parser program
 #[derive(Parser, Debug)]
@@ -19,92 +18,12 @@ struct Args {
     /// Name of the file containing the response (WITH HTTP headers)
     #[arg(short('R'), long)]
     res_file: String,
+
+    /// Display decoding URL (lapo.it)
+    #[arg(short('d'), long)]
+    decode_url: bool,
 }
 
-/// Find a byte position in an array of bytes
-fn find_in_bytes(haystack: &[u8], needle: u8) -> Option<usize> {
-    haystack.iter().position(|&x| x == needle)
-}
-
-/// Parse HTTP request
-fn parse_request(req: &[u8]) -> anyhow::Result<http::Request<Vec<u8>>> {
-    // Extract first list
-    let first_line_end = find_in_bytes(req, b'\r').expect("No newline found in req");
-    let first_line = String::from_utf8_lossy(&req[..first_line_end]);
-    let first_line = first_line.split(' ').collect::<Vec<_>>();
-    let method = first_line[0];
-    let uri = first_line[1];
-    //let version = first_line[2];
-
-    let mut builder = http::Request::builder()
-        .method(http::method::Method::from_str(method)?)
-        .uri(uri)
-        .version(http::version::Version::HTTP_10); // FIXME: parse version properly
-
-    let mut remainder = &req[first_line_end + 2..];
-
-    // Parse following lines
-    while remainder.len() > 2 {
-        let line_end =
-            find_in_bytes(remainder, b'\r').expect("No newline found while parsing headers");
-
-        if line_end == 0 {
-            break;
-        }
-
-        let line = String::from_utf8_lossy(&remainder[..line_end]);
-
-        let (key, value) = line.split_once(": ").unwrap();
-        builder = builder.header(key, value);
-
-        remainder = &remainder[line_end + 2..];
-    }
-
-    if remainder.len() > 2 {
-        Ok(builder.body(remainder[2..].to_vec())?)
-    } else {
-        Ok(builder.body(Vec::new())?)
-    }
-}
-
-/// Parse HTTP response
-fn parse_response(req: &[u8]) -> anyhow::Result<http::Response<Vec<u8>>> {
-    // Extract first list
-    let first_line_end = find_in_bytes(req, b'\r').expect("No newline found in req");
-    let first_line = String::from_utf8_lossy(&req[..first_line_end]);
-    let first_line = first_line.split(' ').collect::<Vec<_>>();
-    // let version = first_line[0];
-    let status = first_line[1].parse::<u16>()?;
-
-    let mut builder = http::Response::builder()
-        .status(StatusCode::from_u16(status)?)
-        .version(http::version::Version::HTTP_10); // FIXME: parse version properly
-
-    let mut remainder = &req[first_line_end + 2..];
-
-    // Parse following lines
-    while remainder.len() > 2 {
-        let line_end =
-            find_in_bytes(remainder, b'\r').expect("No newline found while parsing headers");
-
-        if line_end == 0 {
-            break;
-        }
-
-        let line = String::from_utf8_lossy(&remainder[..line_end]);
-
-        let (key, value) = line.split_once(": ").unwrap();
-        builder = builder.header(key, value);
-
-        remainder = &remainder[line_end + 2..];
-    }
-
-    if remainder.len() > 2 {
-        Ok(builder.body(remainder[2..].to_vec())?)
-    } else {
-        Ok(builder.body(Vec::new())?)
-    }
-}
 
 #[derive(Debug, Copy, Clone, Eq, PartialEq)]
 enum Operation {
@@ -138,15 +57,31 @@ fn main() {
         _ => panic!("Unsupported operation {}!", operation),
     };
 
+    let status = match response.status().as_u16() {
+        100..=199=> response.status().as_u16().to_string().blue(),
+        200..=299 => response.status().as_u16().to_string().green(),
+        400..=999 => response.status().as_u16().to_string().red(),
+        _ => response.status().as_u16().to_string().white().on_red(),
+    };
+    let date = response.headers().get("Date").unwrap().to_str().unwrap();
 
-    println!("{} - {} - {op:?}", response.headers().get("Date").unwrap().to_str().unwrap(), response.status().as_u16());
+    let sha_req = sha256::digest(request.body()).chars().take(10).collect::<String>();
+    let sha_res = sha256::digest(response.body()).chars().take(10).collect::<String>();
+
+    println!("{date} - {status} - {op:?}\t - Req: {sha_req}\t - Res: {sha_res}");
 
     // Parse details about PKIOperation request
     // https://www.rfc-editor.org/rfc/rfc8894.html#section-4.3
-    if op == Operation::PKIOperation {
+    if op == Operation::PKIOperation && args.decode_url {
         let req_b64 = BASE64_URL_URL_SAFE.encode(&request.body());
         let res_b64 = BASE64_URL_URL_SAFE.encode(&response.body());
-        println!("https://lapo.it/asn1js/#{req_b64}");
-        println!("https://lapo.it/asn1js/#{res_b64}");
+        println!("=> REQ https://lapo.it/asn1js/#{req_b64}");
+        println!("=> RES https://lapo.it/asn1js/#{res_b64}");
     }
+
+    if op == Operation::PKIOperation  {
+        let req = decode_request(request.body()).expect("Failed to decode request!");
+        println!("{req:?}");
+    }
+
 }