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This commit is contained in:
Moon Man 2024-08-25 18:52:25 +00:00
parent f98bf7b101
commit 700f64df1c
4 changed files with 61 additions and 8 deletions
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43
lib/vonbraun/activitypub_req.ex Normal file
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@ -0,0 +1,43 @@
defmodule Vonbraun.ActivityPubReq do
alias Vonbraun.HTTPSignature
defp key_id() do
domain = Application.fetch_env!(:vonbraun, :domain)
nickname = Application.fetch_env!(:vonbraun, :nickname)
"https://#{domain}/users/#{nickname}#main-key"
end
def get(url = %URI{:path => path, :query => query}) do
headers = %{
"accept" => "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""
}
target =
if query do
path <> "?" <> query
else
path
end
headers = HTTPSignature.add_get_signature(headers, key_id(), target)
Req.get(url, headers: headers)
end
def post(url = %URI{:path => path, :query => query}, body) when is_binary(body) do
headers = %{
"accept" => "application/ld+json; profile=\"https://www.w3.org/ns/activitystreams\""
}
target =
if query do
path <> "?" <> query
else
path
end
headers = HTTPSignature.add_post_signature(headers, key_id(), target, body)
Req.post(url, headers: headers)
end
end

16
lib/vonbraun/http_signature.ex
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@ -1,4 +1,4 @@
defmodule HTTPSignature do
defmodule Vonbraun.HTTPSignature do
@moduledoc """
Implements RFC 9421 HTTP Signatures using the Digest header.
"""
@ -8,8 +8,8 @@ defmodule HTTPSignature do
@post_headers ["(request-body)", "host", "date", "digest"]
@other_headers ["(request-body)", "host", "date"]
@spec create_post_signature(map(), String.t(), String.t(), String.t()) :: String.t()
def create_post_signature(headers, key_id, path, body)
@spec add_post_signature(map(), String.t(), String.t(), String.t()) :: map()
def add_post_signature(headers, key_id, path, body)
when is_map(headers) and is_binary(key_id) and is_binary(body) and is_binary(path) do
request_target = "post #{path}"
digest = compute_digest(body)
@ -22,18 +22,20 @@ defmodule HTTPSignature do
signing_string = construct_signing_string(headers, @post_headers)
signature = sign(signing_string)
build_signature_header(key_id, signature, @post_headers)
signature_header = build_signature_header(key_id, signature, @post_headers)
Map.put(headers, "signature", signature_header)
end
@spec create_get_signature(map(), String.t(), String.t()) :: String.t()
def create_get_signature(headers, key_id, path)
@spec add_get_signature(map(), String.t(), String.t()) :: map()
def add_get_signature(headers, key_id, path)
when is_map(headers) and is_binary(key_id) and is_binary(path) do
request_target = "get #{path}"
date = Timex.format!(Timex.now(:utc), "{RFC1123}")
headers = Map.put(headers, "date", date) |> Map.put("(request-target)", request_target)
signing_string = construct_signing_string(headers, @other_headers)
signature = sign(signing_string)
build_signature_header(key_id, signature, @other_headers)
signature_header = build_signature_header(key_id, signature, @other_headers)
Map.put(headers, "signature", signature_header)
end
@spec verify_post_signature(map(), String.t()) :: boolean()

3
mix.exs
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@ -26,7 +26,8 @@ defmodule Vonbraun.MixProject do
{:ecto_sqlite3, "~> 0.17"},
{:secure_compare, "~> 0.1.0"},
{:ex_crypto, "~> 0.10.0"},
{:timex, "~> 3.7.11"}
{:timex, "~> 3.7.11"},
{:req, "~> 0.5.0"}
]
end
end

7
mix.lock
View File

@ -1,5 +1,6 @@
%{
"bandit": {:hex, :bandit, "1.5.7", "6856b1e1df4f2b0cb3df1377eab7891bec2da6a7fd69dc78594ad3e152363a50", [:mix], [{:hpax, "~> 1.0.0", [hex: :hpax, repo: "hexpm", optional: false]}, {:plug, "~> 1.14", [hex: :plug, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}, {:thousand_island, "~> 1.0", [hex: :thousand_island, repo: "hexpm", optional: false]}, {:websock, "~> 0.5", [hex: :websock, repo: "hexpm", optional: false]}], "hexpm", "f2dd92ae87d2cbea2fa9aa1652db157b6cba6c405cb44d4f6dd87abba41371cd"},
"castore": {:hex, :castore, "1.0.8", "dedcf20ea746694647f883590b82d9e96014057aff1d44d03ec90f36a5c0dc6e", [:mix], [], "hexpm", "0b2b66d2ee742cb1d9cb8c8be3b43c3a70ee8651f37b75a8b982e036752983f1"},
"cc_precompiler": {:hex, :cc_precompiler, "0.1.10", "47c9c08d8869cf09b41da36538f62bc1abd3e19e41701c2cea2675b53c704258", [:mix], [{:elixir_make, "~> 0.7", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "f6e046254e53cd6b41c6bacd70ae728011aa82b2742a80d6e2214855c6e06b22"},
"certifi": {:hex, :certifi, "2.12.0", "2d1cca2ec95f59643862af91f001478c9863c2ac9cb6e2f89780bfd8de987329", [:rebar3], [], "hexpm", "ee68d85df22e554040cdb4be100f33873ac6051387baf6a8f6ce82272340ff1c"},
"combine": {:hex, :combine, "0.10.0", "eff8224eeb56498a2af13011d142c5e7997a80c8f5b97c499f84c841032e429f", [:mix], [], "hexpm", "1b1dbc1790073076580d0d1d64e42eae2366583e7aecd455d1215b0d16f2451b"},
@ -12,17 +13,23 @@
"ex_crypto": {:hex, :ex_crypto, "0.10.0", "af600a89b784b36613a989da6e998c1b200ff1214c3cfbaf8deca4aa2f0a1739", [:mix], [{:poison, ">= 2.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm", "ccc7472cfe8a0f4565f97dce7e9280119bf15a5ea51c6535e5b65f00660cde1c"},
"expo": {:hex, :expo, "1.0.1", "f9e2f984f5b8d195815d52d0ba264798c12c8d2f2606f76fa4c60e8ebe39474d", [:mix], [], "hexpm", "f250b33274e3e56513644858c116f255d35c767c2b8e96a512fe7839ef9306a1"},
"exqlite": {:hex, :exqlite, "0.23.0", "6e851c937a033299d0784994c66da24845415072adbc455a337e20087bce9033", [:make, :mix], [{:cc_precompiler, "~> 0.1", [hex: :cc_precompiler, repo: "hexpm", optional: false]}, {:db_connection, "~> 2.1", [hex: :db_connection, repo: "hexpm", optional: false]}, {:elixir_make, "~> 0.8", [hex: :elixir_make, repo: "hexpm", optional: false]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "404341cceec5e6466aaed160cf0b58be2019b60af82588c215e1224ebd3ec831"},
"finch": {:hex, :finch, "0.18.0", "944ac7d34d0bd2ac8998f79f7a811b21d87d911e77a786bc5810adb75632ada4", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.3", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2.6 or ~> 1.0", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "69f5045b042e531e53edc2574f15e25e735b522c37e2ddb766e15b979e03aa65"},
"gettext": {:hex, :gettext, "0.26.1", "38e14ea5dcf962d1fc9f361b63ea07c0ce715a8ef1f9e82d3dfb8e67e0416715", [:mix], [{:expo, "~> 0.5.1 or ~> 1.0", [hex: :expo, repo: "hexpm", optional: false]}], "hexpm", "01ce56f188b9dc28780a52783d6529ad2bc7124f9744e571e1ee4ea88bf08734"},
"hackney": {:hex, :hackney, "1.20.1", "8d97aec62ddddd757d128bfd1df6c5861093419f8f7a4223823537bad5d064e2", [:rebar3], [{:certifi, "~> 2.12.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~> 6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~> 1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~> 1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.4.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~> 1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~> 0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "fe9094e5f1a2a2c0a7d10918fee36bfec0ec2a979994cff8cfe8058cd9af38e3"},
"hpax": {:hex, :hpax, "1.0.0", "28dcf54509fe2152a3d040e4e3df5b265dcb6cb532029ecbacf4ce52caea3fd2", [:mix], [], "hexpm", "7f1314731d711e2ca5fdc7fd361296593fc2542570b3105595bb0bc6d0fad601"},
"idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~> 0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},
"jason": {:hex, :jason, "1.4.4", "b9226785a9aa77b6857ca22832cffa5d5011a667207eb2a0ad56adb5db443b8a", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "c5eb0cab91f094599f94d55bc63409236a8ec69a21a67814529e8d5f6cc90b3b"},
"metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"},
"mime": {:hex, :mime, "2.0.6", "8f18486773d9b15f95f4f4f1e39b710045fa1de891fada4516559967276e4dc2", [:mix], [], "hexpm", "c9945363a6b26d747389aac3643f8e0e09d30499a138ad64fe8fd1d13d9b153e"},
"mimerl": {:hex, :mimerl, "1.3.0", "d0cd9fc04b9061f82490f6581e0128379830e78535e017f7780f37fea7545726", [:rebar3], [], "hexpm", "a1e15a50d1887217de95f0b9b0793e32853f7c258a5cd227650889b38839fe9d"},
"mint": {:hex, :mint, "1.6.2", "af6d97a4051eee4f05b5500671d47c3a67dac7386045d87a904126fd4bbcea2e", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1 or ~> 0.2.0 or ~> 1.0", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "5ee441dffc1892f1ae59127f74afe8fd82fda6587794278d924e4d90ea3d63f9"},
"nimble_options": {:hex, :nimble_options, "1.1.1", "e3a492d54d85fc3fd7c5baf411d9d2852922f66e69476317787a7b2bb000a61b", [:mix], [], "hexpm", "821b2470ca9442c4b6984882fe9bb0389371b8ddec4d45a9504f00a66f650b44"},
"nimble_pool": {:hex, :nimble_pool, "1.1.0", "bf9c29fbdcba3564a8b800d1eeb5a3c58f36e1e11d7b7fb2e084a643f645f06b", [:mix], [], "hexpm", "af2e4e6b34197db81f7aad230c1118eac993acc0dae6bc83bac0126d4ae0813a"},
"parse_trans": {:hex, :parse_trans, "3.4.1", "6e6aa8167cb44cc8f39441d05193be6e6f4e7c2946cb2759f015f8c56b76e5ff", [:rebar3], [], "hexpm", "620a406ce75dada827b82e453c19cf06776be266f5a67cff34e1ef2cbb60e49a"},
"plug": {:hex, :plug, "1.16.1", "40c74619c12f82736d2214557dedec2e9762029b2438d6d175c5074c933edc9d", [:mix], [{:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:plug_crypto, "~> 1.1.1 or ~> 1.2 or ~> 2.0", [hex: :plug_crypto, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4.3 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "a13ff6b9006b03d7e33874945b2755253841b238c34071ed85b0e86057f8cddc"},
"plug_crypto": {:hex, :plug_crypto, "2.1.0", "f44309c2b06d249c27c8d3f65cfe08158ade08418cf540fd4f72d4d6863abb7b", [:mix], [], "hexpm", "131216a4b030b8f8ce0f26038bc4421ae60e4bb95c5cf5395e1421437824c4fa"},
"poison": {:hex, :poison, "6.0.0", "9bbe86722355e36ffb62c51a552719534257ba53f3271dacd20fbbd6621a583a", [:mix], [{:decimal, "~> 2.1", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "bb9064632b94775a3964642d6a78281c07b7be1319e0016e1643790704e739a2"},
"req": {:hex, :req, "0.5.6", "8fe1eead4a085510fe3d51ad854ca8f20a622aae46e97b302f499dfb84f726ac", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.17", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 2.0.6 or ~> 2.1", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "cfaa8e720945d46654853de39d368f40362c2641c4b2153c886418914b372185"},
"secure_compare": {:hex, :secure_compare, "0.1.0", "01b3c93c8edb696e8a5b38397ed48e10958c8a5ec740606656445bcbec0aadb8", [:mix], [], "hexpm", "6391a49eb4a6182f0d7425842fc774bbed715e78b2bfb0c83b99c94e02c78b5c"},
"ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.7", "354c321cf377240c7b8716899e182ce4890c5938111a1296add3ec74cf1715df", [:make, :mix, :rebar3], [], "hexpm", "fe4c190e8f37401d30167c8c405eda19469f34577987c76dde613e838bbc67f8"},
"telemetry": {:hex, :telemetry, "1.3.0", "fedebbae410d715cf8e7062c96a1ef32ec22e764197f70cda73d82778d61e7a2", [:rebar3], [], "hexpm", "7015fc8919dbe63764f4b4b87a95b7c0996bd539e0d499be6ec9d7f3875b79e6"},