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diff --git a/.formatter.exs b/.formatter.exs
new file mode 100644
index 0000000..d2cda26
--- /dev/null
+++ b/.formatter.exs
@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+ inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..89377b2
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,24 @@
+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where 3rd-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+http_signatures-*.tar
+
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..0a04128
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,165 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+ This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+ 0. Additional Definitions.
+
+ As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+ "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+ An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+ A "Combined Work" is a work produced by combining or linking an
+Application with the Library. The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+ The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+ The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+ 1. Exception to Section 3 of the GNU GPL.
+
+ You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+ 2. Conveying Modified Versions.
+
+ If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+ a) under this License, provided that you make a good faith effort to
+ ensure that, in the event an Application does not supply the
+ function or data, the facility still operates, and performs
+ whatever part of its purpose remains meaningful, or
+
+ b) under the GNU GPL, with none of the additional permissions of
+ this License applicable to that copy.
+
+ 3. Object Code Incorporating Material from Library Header Files.
+
+ The object code form of an Application may incorporate material from
+a header file that is part of the Library. You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+ a) Give prominent notice with each copy of the object code that the
+ Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the object code with a copy of the GNU GPL and this license
+ document.
+
+ 4. Combined Works.
+
+ You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+ a) Give prominent notice with each copy of the Combined Work that
+ the Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the Combined Work with a copy of the GNU GPL and this license
+ document.
+
+ c) For a Combined Work that displays copyright notices during
+ execution, include the copyright notice for the Library among
+ these notices, as well as a reference directing the user to the
+ copies of the GNU GPL and this license document.
+
+ d) Do one of the following:
+
+ 0) Convey the Minimal Corresponding Source under the terms of this
+ License, and the Corresponding Application Code in a form
+ suitable for, and under terms that permit, the user to
+ recombine or relink the Application with a modified version of
+ the Linked Version to produce a modified Combined Work, in the
+ manner specified by section 6 of the GNU GPL for conveying
+ Corresponding Source.
+
+ 1) Use a suitable shared library mechanism for linking with the
+ Library. A suitable mechanism is one that (a) uses at run time
+ a copy of the Library already present on the user's computer
+ system, and (b) will operate properly with a modified version
+ of the Library that is interface-compatible with the Linked
+ Version.
+
+ e) Provide Installation Information, but only if you would otherwise
+ be required to provide such information under section 6 of the
+ GNU GPL, and only to the extent that such information is
+ necessary to install and execute a modified version of the
+ Combined Work produced by recombining or relinking the
+ Application with a modified version of the Linked Version. (If
+ you use option 4d0, the Installation Information must accompany
+ the Minimal Corresponding Source and Corresponding Application
+ Code. If you use option 4d1, you must provide the Installation
+ Information in the manner specified by section 6 of the GNU GPL
+ for conveying Corresponding Source.)
+
+ 5. Combined Libraries.
+
+ You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+ a) Accompany the combined library with a copy of the same work based
+ on the Library, uncombined with any other library facilities,
+ conveyed under the terms of this License.
+
+ b) Give prominent notice with the combined library that part of it
+ is a work based on the Library, and explaining where to find the
+ accompanying uncombined form of the same work.
+
+ 6. Revised Versions of the GNU Lesser General Public License.
+
+ The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+ If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e1b6d5e
--- /dev/null
+++ b/README.md
@@ -0,0 +1,20 @@
+# HttpSignatures
+
+**Elixir library for manipulating and validating HTTP signatures.**
+
+## Installation
+
+If [available in Hex](https://hex.pm/docs/publish), the package can be installed
+by adding `http_signatures` to your list of dependencies in `mix.exs`:
+
+```elixir
+def deps do
+ [
+ {:http_signatures, "~> 0.1.0"}
+ ]
+end
+```
+
+Documentation can be generated with [ExDoc](https://github.com/elixir-lang/ex_doc)
+and published on [HexDocs](https://hexdocs.pm). Once published, the docs can
+be found at [https://hexdocs.pm/http_signatures](https://hexdocs.pm/http_signatures).
diff --git a/config/config.exs b/config/config.exs
new file mode 100644
index 0000000..a1c9f20
--- /dev/null
+++ b/config/config.exs
@@ -0,0 +1,7 @@
+use Mix.Config
+
+config :http_signatures, adapter: HTTPSignatures.NullAdapter
+
+if Mix.env() == :test do
+ config :http_signatures, adapter: HTTPSignatures.TestAdapter
+end
diff --git a/lib/http_signatures/adapter.ex b/lib/http_signatures/adapter.ex
new file mode 100644
index 0000000..493182c
--- /dev/null
+++ b/lib/http_signatures/adapter.ex
@@ -0,0 +1,29 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: LGPL-3.0-only
+
+defmodule HTTPSignatures.Adapter do
+ @moduledoc """
+ Contract for HTTPSignatures adapters.
+
+ Projects making use of the HTTPSignatures library use an adapter in order
+ to provide and refresh the keys used to validate signatures.
+
+ To set the adapter in your project, use the config system:
+
+ ```elixir
+ config :http_signatures, adapter: YourAdapter
+ ```
+ """
+
+ @doc """
+ Fetch a public key, given a `Plug.Conn` structure.
+ """
+ @callback fetch_public_key(Plug.Conn.t()) :: {:ok, any()} | {:error, any()}
+
+ @doc """
+ Refetch a public key, given a `Plug.Conn` structure.
+ Called when the initial key supplied failed to validate the signature.
+ """
+ @callback refetch_public_key(Plug.Conn.t()) :: {:ok, any()} | {:error, any()}
+end
diff --git a/lib/http_signatures/http_signatures.ex b/lib/http_signatures/http_signatures.ex
new file mode 100644
index 0000000..25bc9f1
--- /dev/null
+++ b/lib/http_signatures/http_signatures.ex
@@ -0,0 +1,81 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: LGPL-3.0-only
+
+# https://tools.ietf.org/html/draft-cavage-http-signatures-08
+defmodule HTTPSignatures do
+ require Logger
+
+ def split_signature(sig) do
+ default = %{"headers" => "date"}
+
+ sig =
+ sig
+ |> String.trim()
+ |> String.split(",")
+ |> Enum.reduce(default, fn part, acc ->
+ [key | rest] = String.split(part, "=")
+ value = Enum.join(rest, "=")
+ Map.put(acc, key, String.trim(value, "\""))
+ end)
+
+ Map.put(sig, "headers", String.split(sig["headers"], ~r/\s/))
+ end
+
+ def validate(headers, signature, public_key) do
+ sigstring = build_signing_string(headers, signature["headers"])
+ Logger.debug("Signature: #{signature["signature"]}")
+ Logger.debug("Sigstring: #{sigstring}")
+ {:ok, sig} = Base.decode64(signature["signature"])
+ :public_key.verify(sigstring, :sha256, sig, public_key)
+ end
+
+ def validate_conn(conn) do
+ adapter = Application.get_env(:http_signatures, :adapter)
+
+ with {:ok, public_key} <- adapter.fetch_public_key(conn) do
+ if validate_conn(conn, public_key) do
+ true
+ else
+ Logger.debug("Could not validate, trying to refetch any relevant keys")
+
+ with {:ok, public_key} <- adapter.refetch_public_key(conn) do
+ validate_conn(conn, public_key)
+ end
+ end
+ else
+ e ->
+ Logger.debug("Could not validate against known public keys: #{inspect(e)}")
+ false
+ end
+ end
+
+ def validate_conn(conn, public_key) do
+ headers = Enum.into(conn.req_headers, %{})
+ signature = split_signature(headers["signature"])
+ validate(headers, signature, public_key)
+ end
+
+ def build_signing_string(headers, used_headers) do
+ used_headers
+ |> Enum.map(fn header -> "#{header}: #{headers[header]}" end)
+ |> Enum.join("\n")
+ end
+
+ def sign(private_key, key_id, headers) do
+ sigstring = build_signing_string(headers, Map.keys(headers))
+
+ signature =
+ :public_key.sign(sigstring, :sha256, private_key)
+ |> Base.encode64()
+
+ [
+ keyId: key_id,
+ algorithm: "rsa-sha256",
+ headers: Map.keys(headers) |> Enum.join(" "),
+ signature: signature
+ ]
+ |> Enum.map(fn {k, v} -> "#{k}=\"#{v}\"" end)
+ |> Enum.join(",")
+ end
+end
diff --git a/mix.exs b/mix.exs
new file mode 100644
index 0000000..42bf3f8
--- /dev/null
+++ b/mix.exs
@@ -0,0 +1,33 @@
+defmodule HttpSignatures.MixProject do
+ use Mix.Project
+
+ def project do
+ [
+ app: :http_signatures,
+ version: "0.1.0",
+ elixir: "~> 1.7",
+ elixirc_options: [warnings_as_errors: true],
+ elixirc_paths: elixirc_paths(Mix.env()),
+ start_permanent: Mix.env() == :prod,
+ deps: deps()
+ ]
+ end
+
+ # Run "mix help compile.app" to learn about applications.
+ def application do
+ [
+ extra_applications: [:logger]
+ ]
+ end
+
+ # Run "mix help deps" to learn about dependencies.
+ defp deps do
+ [
+ # {:dep_from_hexpm, "~> 0.3.0"},
+ # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"},
+ ]
+ end
+
+ defp elixirc_paths(:test), do: ["lib", "test/support"]
+ defp elixirc_paths(_), do: ["lib"]
+end
diff --git a/test/admin@mastodon.example.org.key b/test/admin@mastodon.example.org.key
new file mode 100644
index 0000000..b6ece32
--- /dev/null
+++ b/test/admin@mastodon.example.org.key
@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAtc4Tir+3ADhSNF6VKrtW
+OU32T01w7V0yshmQei38YyiVwVvFu8XOP6ACchkdxbJ+C9mZud8qWaRJKVbFTMUG
+NX4+6Q+FobyuKrwN7CEwhDALZtaN2IPbaPd6uG1B7QhWorrY+yFa8f2TBM3BxnUy
+I4T+bMIZIEYG7KtljCBoQXuTQmGtuffO0UwJksidg2ffCF5Q+K//JfQagJ3UzrR+
+ZXbKMJdAw4bCVJYs4Z5EhHYBwQWiXCyMGTd7BGlmMkY6Av7ZqHKC/owp3/0EWDNz
+NqF09Wcpr3y3e8nA10X40MJqp/wR+1xtxp+YGbq/Cj5hZGBG7etFOmIpVBrDOhry
+BwIDAQAB
+-----END PUBLIC KEY-----
diff --git a/test/http_signatures_test.exs b/test/http_signatures_test.exs
new file mode 100644
index 0000000..c7e063b
--- /dev/null
+++ b/test/http_signatures_test.exs
@@ -0,0 +1,191 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: LGPL-3.0-only
+
+# Test data from https://tools.ietf.org/html/draft-cavage-http-signatures-08#appendix-C
+defmodule HttpSignaturesTest do
+ use ExUnit.Case
+
+ @public_key hd(:public_key.pem_decode(File.read!("test/public.key")))
+ |> :public_key.pem_entry_decode()
+
+ @private_key hd(:public_key.pem_decode(File.read!("test/private.key")))
+ |> :public_key.pem_entry_decode()
+
+ @headers %{
+ "(request-target)" => "post /foo?param=value&pet=dog",
+ "host" => "example.com",
+ "date" => "Thu, 05 Jan 2014 21:31:40 GMT",
+ "content-type" => "application/json",
+ "digest" => "SHA-256=X48E9qOokqqrvdts8nOJRJN3OWDUoyWxBf7kbu9DBPE=",
+ "content-length" => "18"
+ }
+
+ @default_signature """
+ keyId="Test",algorithm="rsa-sha256",signature="jKyvPcxB4JbmYY4mByyBY7cZfNl4OW9HpFQlG7N4YcJPteKTu4MWCLyk+gIr0wDgqtLWf9NLpMAMimdfsH7FSWGfbMFSrsVTHNTk0rK3usrfFnti1dxsM4jl0kYJCKTGI/UWkqiaxwNiKqGcdlEDrTcUhhsFsOIo8VhddmZTZ8w="
+ """
+
+ @basic_signature """
+ keyId="Test",algorithm="rsa-sha256",headers="(request-target) host date",signature="HUxc9BS3P/kPhSmJo+0pQ4IsCo007vkv6bUm4Qehrx+B1Eo4Mq5/6KylET72ZpMUS80XvjlOPjKzxfeTQj4DiKbAzwJAb4HX3qX6obQTa00/qPDXlMepD2JtTw33yNnm/0xV7fQuvILN/ys+378Ysi082+4xBQFwvhNvSoVsGv4="
+ """
+
+ @all_headers_signature """
+ keyId="Test",algorithm="rsa-sha256",headers="(request-target) host date content-type digest content-length",signature="Ef7MlxLXoBovhil3AlyjtBwAL9g4TN3tibLj7uuNB3CROat/9KaeQ4hW2NiJ+pZ6HQEOx9vYZAyi+7cmIkmJszJCut5kQLAwuX+Ms/mUFvpKlSo9StS2bMXDBNjOh4Auj774GFj4gwjS+3NhFeoqyr/MuN6HsEnkvn6zdgfE2i0="
+ """
+
+ test "split up a signature" do
+ expected = %{
+ "keyId" => "Test",
+ "algorithm" => "rsa-sha256",
+ "signature" =>
+ "jKyvPcxB4JbmYY4mByyBY7cZfNl4OW9HpFQlG7N4YcJPteKTu4MWCLyk+gIr0wDgqtLWf9NLpMAMimdfsH7FSWGfbMFSrsVTHNTk0rK3usrfFnti1dxsM4jl0kYJCKTGI/UWkqiaxwNiKqGcdlEDrTcUhhsFsOIo8VhddmZTZ8w=",
+ "headers" => ["date"]
+ }
+
+ assert HTTPSignatures.split_signature(@default_signature) == expected
+ end
+
+ test "validates the default case" do
+ signature = HTTPSignatures.split_signature(@default_signature)
+ assert HTTPSignatures.validate(@headers, signature, @public_key)
+ end
+
+ test "validates the basic case" do
+ signature = HTTPSignatures.split_signature(@basic_signature)
+ assert HTTPSignatures.validate(@headers, signature, @public_key)
+ end
+
+ test "validates the all-headers case" do
+ signature = HTTPSignatures.split_signature(@all_headers_signature)
+ assert HTTPSignatures.validate(@headers, signature, @public_key)
+ end
+
+ test "it contructs a signing string" do
+ expected = "date: Thu, 05 Jan 2014 21:31:40 GMT\ncontent-length: 18"
+ assert expected == HTTPSignatures.build_signing_string(@headers, ["date", "content-length"])
+ end
+
+ test "it validates a conn" do
+ public_key_pem =
+ "-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnGb42rPZIapY4Hfhxrgn\nxKVJczBkfDviCrrYaYjfGxawSw93dWTUlenCVTymJo8meBlFgIQ70ar4rUbzl6GX\nMYvRdku072d1WpglNHXkjKPkXQgngFDrh2sGKtNB/cEtJcAPRO8OiCgPFqRtMiNM\nc8VdPfPdZuHEIZsJ/aUM38EnqHi9YnVDQik2xxDe3wPghOhqjxUM6eLC9jrjI+7i\naIaEygUdyst9qVg8e2FGQlwAeS2Eh8ygCxn+bBlT5OyV59jSzbYfbhtF2qnWHtZy\nkL7KOOwhIfGs7O9SoR2ZVpTEQ4HthNzainIe/6iCR5HGrao/T8dygweXFYRv+k5A\nPQIDAQAB\n-----END PUBLIC KEY-----\n"
+
+ [public_key] = :public_key.pem_decode(public_key_pem)
+
+ public_key =
+ public_key
+ |> :public_key.pem_entry_decode()
+
+ conn = %{
+ req_headers: [
+ {"host", "localtesting.pleroma.lol"},
+ {"connection", "close"},
+ {"content-length", "2316"},
+ {"user-agent", "http.rb/2.2.2 (Mastodon/2.1.0.rc3; +http://mastodon.example.org/)"},
+ {"date", "Sun, 10 Dec 2017 14:23:49 GMT"},
+ {"digest", "SHA-256=x/bHADMW8qRrq2NdPb5P9fl0lYpKXXpe5h5maCIL0nM="},
+ {"content-type", "application/activity+json"},
+ {"(request-target)", "post /users/demiurge/inbox"},
+ {"signature",
+ "keyId=\"http://mastodon.example.org/users/admin#main-key\",algorithm=\"rsa-sha256\",headers=\"(request-target) user-agent host date digest content-type\",signature=\"i0FQvr51sj9BoWAKydySUAO1RDxZmNY6g7M62IA7VesbRSdFZZj9/fZapLp6YSuvxUF0h80ZcBEq9GzUDY3Chi9lx6yjpUAS2eKb+Am/hY3aswhnAfYd6FmIdEHzsMrpdKIRqO+rpQ2tR05LwiGEHJPGS0p528NvyVxrxMT5H5yZS5RnxY5X2HmTKEgKYYcvujdv7JWvsfH88xeRS7Jlq5aDZkmXvqoR4wFyfgnwJMPLel8P/BUbn8BcXglH/cunR0LUP7sflTxEz+Rv5qg+9yB8zgBsB4C0233WpcJxjeD6Dkq0EcoJObBR56F8dcb7NQtUDu7x6xxzcgSd7dHm5w==\""}
+ ]
+ }
+
+ assert HTTPSignatures.validate_conn(conn, public_key)
+ end
+
+ test "it validates a conn and fetches the key" do
+ conn = %{
+ params: %{"actor" => "http://mastodon.example.org/users/admin"},
+ req_headers: [
+ {"host", "localtesting.pleroma.lol"},
+ {"x-forwarded-for", "127.0.0.1"},
+ {"connection", "close"},
+ {"content-length", "2307"},
+ {"user-agent", "http.rb/2.2.2 (Mastodon/2.1.0.rc3; +http://mastodon.example.org/)"},
+ {"date", "Sun, 11 Feb 2018 17:12:01 GMT"},
+ {"digest", "SHA-256=UXsAnMtR9c7mi1FOf6HRMtPgGI1yi2e9nqB/j4rZ99I="},
+ {"content-type", "application/activity+json"},
+ {"signature",
+ "keyId=\"http://mastodon.example.org/users/admin#main-key\",algorithm=\"rsa-sha256\",headers=\"(request-target) user-agent host date digest content-type\",signature=\"qXKqpQXUpC3d9bZi2ioEeAqP8nRMD021CzH1h6/w+LRk4Hj31ARJHDwQM+QwHltwaLDUepshMfz2WHSXAoLmzWtvv7xRwY+mRqe+NGk1GhxVZ/LSrO/Vp7rYfDpfdVtkn36LU7/Bzwxvvaa4ZWYltbFsRBL0oUrqsfmJFswNCQIG01BB52BAhGSCORHKtQyzo1IZHdxl8y80pzp/+FOK2SmHkqWkP9QbaU1qTZzckL01+7M5btMW48xs9zurEqC2sM5gdWMQSZyL6isTV5tmkTZrY8gUFPBJQZgihK44v3qgfWojYaOwM8ATpiv7NG8wKN/IX7clDLRMA8xqKRCOKw==\""},
+ {"(request-target)", "post /users/demiurge/inbox"}
+ ]
+ }
+
+ assert HTTPSignatures.validate_conn(conn)
+ end
+
+ test "validate this" do
+ conn = %{
+ params: %{"actor" => "https://niu.moe/users/rye"},
+ req_headers: [
+ {"x-forwarded-for", "149.202.73.191"},
+ {"host", "testing.pleroma.lol"},
+ {"x-cluster-client-ip", "149.202.73.191"},
+ {"connection", "upgrade"},
+ {"content-length", "2396"},
+ {"user-agent", "http.rb/3.0.0 (Mastodon/2.2.0; +https://niu.moe/)"},
+ {"date", "Sun, 18 Feb 2018 20:31:51 GMT"},
+ {"digest", "SHA-256=dzH+vLyhxxALoe9RJdMl4hbEV9bGAZnSfddHQzeidTU="},
+ {"content-type", "application/activity+json"},
+ {"signature",
+ "keyId=\"https://niu.moe/users/rye#main-key\",algorithm=\"rsa-sha256\",headers=\"(request-target) user-agent host date digest content-type\",signature=\"wtxDg4kIpW7nsnUcVJhBk6SgJeDZOocr8yjsnpDRqE52lR47SH6X7G16r7L1AUJdlnbfx7oqcvomoIJoHB3ghP6kRnZW6MyTMZ2jPoi3g0iC5RDqv6oAmDSO14iw6U+cqZbb3P/odS5LkbThF0UNXcfenVNfsKosIJycFjhNQc54IPCDXYq/7SArEKJp8XwEgzmiC2MdxlkVIUSTQYfjM4EG533cwlZocw1mw72e5mm/owTa80BUZAr0OOuhoWARJV9btMb02ZyAF6SCSoGPTA37wHyfM1Dk88NHf7Z0Aov/Fl65dpRM+XyoxdkpkrhDfH9qAx4iuV2VEWddQDiXHA==\""},
+ {"(request-target)", "post /inbox"}
+ ]
+ }
+
+ assert HTTPSignatures.validate_conn(conn)
+ end
+
+ test "validate this too" do
+ conn = %{
+ params: %{"actor" => "https://niu.moe/users/rye"},
+ req_headers: [
+ {"x-forwarded-for", "149.202.73.191"},
+ {"host", "testing.pleroma.lol"},
+ {"x-cluster-client-ip", "149.202.73.191"},
+ {"connection", "upgrade"},
+ {"content-length", "2342"},
+ {"user-agent", "http.rb/3.0.0 (Mastodon/2.2.0; +https://niu.moe/)"},
+ {"date", "Sun, 18 Feb 2018 21:44:46 GMT"},
+ {"digest", "SHA-256=vS8uDOJlyAu78cF3k5EzrvaU9iilHCX3chP37gs5sS8="},
+ {"content-type", "application/activity+json"},
+ {"signature",
+ "keyId=\"https://niu.moe/users/rye#main-key\",algorithm=\"rsa-sha256\",headers=\"(request-target) user-agent host date digest content-type\",signature=\"IN6fHD8pLiDEf35dOaRHzJKc1wBYh3/Yq0ItaNGxUSbJTd2xMjigZbcsVKzvgYYjglDDN+disGNeD+OBKwMqkXWaWe/lyMc9wHvCH5NMhpn/A7qGLY8yToSt4vh8ytSkZKO6B97yC+Nvy6Fz/yMbvKtFycIvSXCq417cMmY6f/aG+rtMUlTbKO5gXzC7SUgGJCtBPCh1xZzu5/w0pdqdjO46ePNeR6JyJSLLV4hfo3+p2n7SRraxM4ePVCUZqhwS9LPt3Zdhy3ut+IXCZgMVIZggQFM+zXLtcXY5HgFCsFQr5WQDu+YkhWciNWtKFnWfAsnsg5sC330lZ/0Z8Z91yA==\""},
+ {"(request-target)", "post /inbox"}
+ ]
+ }
+
+ assert HTTPSignatures.validate_conn(conn)
+ end
+
+ test "it generates a signature" do
+ assert HTTPSignatures.sign(
+ @private_key,
+ "http://mastodon.example.org/users/admin#main-key",
+ %{host: "mastodon.example.org"}
+ ) =~ "keyId=\""
+ end
+
+ test "this too" do
+ conn = %{
+ params: %{"actor" => "https://mst3k.interlinked.me/users/luciferMysticus"},
+ req_headers: [
+ {"host", "soc.canned-death.us"},
+ {"user-agent", "http.rb/3.0.0 (Mastodon/2.2.0; +https://mst3k.interlinked.me/)"},
+ {"date", "Sun, 11 Mar 2018 12:19:36 GMT"},
+ {"digest", "SHA-256=V7Hl6qDK2m8WzNsjzNYSBISi9VoIXLFlyjF/a5o1SOc="},
+ {"content-type", "application/activity+json"},
+ {"signature",
+ "keyId=\"https://mst3k.interlinked.me/users/luciferMysticus#main-key\",algorithm=\"rsa-sha256\",headers=\"(request-target) user-agent host date digest content-type\",signature=\"CTYdK5a6lYMxzmqjLOpvRRASoxo2Rqib2VrAvbR5HaTn80kiImj15pCpAyx8IZp53s0Fn/y8MjCTzp+absw8kxx0k2sQAXYs2iy6xhdDUe7iGzz+XLAEqLyZIZfecynaU2nb3Z2XnFDjhGjR1vj/JP7wiXpwp6o1dpDZj+KT2vxHtXuB9585V+sOHLwSB1cGDbAgTy0jx/2az2EGIKK2zkw1KJuAZm0DDMSZalp/30P8dl3qz7DV2EHdDNfaVtrs5BfbDOZ7t1hCcASllzAzgVGFl0BsrkzBfRMeUMRucr111ZG+c0BNOEtJYOHSyZsSSdNknElggCJekONYMYk5ZA==\""},
+ {"x-forwarded-for", "2607:5300:203:2899::31:1337"},
+ {"x-forwarded-host", "soc.canned-death.us"},
+ {"x-forwarded-server", "soc.canned-death.us"},
+ {"connection", "Keep-Alive"},
+ {"content-length", "2006"},
+ {"(request-target)", "post /inbox"}
+ ]
+ }
+
+ assert HTTPSignatures.validate_conn(conn)
+ end
+end
diff --git a/test/lucifermysticus@mst3k.interlinked.me.key b/test/lucifermysticus@mst3k.interlinked.me.key
new file mode 100644
index 0000000..8b6e087
--- /dev/null
+++ b/test/lucifermysticus@mst3k.interlinked.me.key
@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAx2+Q4KKYrzM7K/IglGGq
+QrpQmgs1ZhxE6hI4y5Jsv2b9FWxaVOWgf0YcDG2XO4wZoBmcyqJTaKUFnMCwasaC
+N2YbzUgMWk3krT2yYZMQD6rbHPb8c3Ou/iI84UbLrFeCBu9RgnzPXcvRyH2ktjmZ
+pSTvTcys+QARa//NNVS+nns4ZkZbHF9hQm4+kEOpotzOgMratVSTteQVfIwziwHh
+7SZIfLYCgamBsF7wu7DtEDh317SYiyoZD9cj+kF0eXs/tT8oY+yVUYOAtbhkDgcj
+BuK9TKEmIKGTTDeLYCsXh5B8Attb9+A/9ZUmBc0/DgrMtXSI2daGPiRBeAbH7BZP
+KwIDAQAB
+-----END PUBLIC KEY-----
diff --git a/test/private.key b/test/private.key
new file mode 100644
index 0000000..425518a
--- /dev/null
+++ b/test/private.key
@@ -0,0 +1,15 @@
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----
diff --git a/test/public.key b/test/public.key
new file mode 100644
index 0000000..b3bbf6c
--- /dev/null
+++ b/test/public.key
@@ -0,0 +1,6 @@
+-----BEGIN PUBLIC KEY-----
+MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDCFENGw33yGihy92pDjZQhl0C3
+6rPJj+CvfSC8+q28hxA161QFNUd13wuCTUcq0Qd2qsBe/2hFyc2DCJJg0h1L78+6
+Z4UMR7EOcpfdUE9Hf3m/hs+FUR45uBJeDK1HSFHD8bHKD6kv8FPGfJTotc+2xjJw
+oYi+1hqp1fIekaxsyQIDAQAB
+-----END PUBLIC KEY-----
diff --git a/test/rye@niu.moe.key b/test/rye@niu.moe.key
new file mode 100644
index 0000000..fb1cfaf
--- /dev/null
+++ b/test/rye@niu.moe.key
@@ -0,0 +1,9 @@
+-----BEGIN PUBLIC KEY-----
+MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA83uRWjCFO35FwfA38mzv
+EL0TUaXB7+2hYvPwNrn1WY6me5DRbqB5zzMrzWMGr0HSooqNqEYBafGsmVTWUqIk
+KM9ehtIBraJI+mT5X7DPR3LrXOJF4a9EEslg8XvAk8MN9IrAhm6UljnvB67RtDcA
+TNB01VWy9yWnxFRtz9o/EMoBPyw5giOaXE2ibVNP8lQIqGKuuBKPzPjSJygdvQ5q
+xfow2z1TpKRqdsNDqn4n6U6zCXYTzkr0J71/tGw7fsgfv78l0Wjrc7EcuBk74OaG
+C65UDiu3X4Q6kxCfCEhPSfuwLN+UZkzxcn6goWR0iYpWs57+4tFKu9nJYP4QJ0K9
+TwIDAQAB
+-----END PUBLIC KEY-----
diff --git a/test/support/test_adapter.ex b/test/support/test_adapter.ex
new file mode 100644
index 0000000..01e173f
--- /dev/null
+++ b/test/support/test_adapter.ex
@@ -0,0 +1,34 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: LGPL-3.0-only
+
+defmodule HTTPSignatures.TestAdapter do
+ @behaviour HTTPSignatures.Adapter
+
+ @mastodon_admin_pubkey hd(
+ :public_key.pem_decode(
+ File.read!("test/admin@mastodon.example.org.key")
+ )
+ )
+ |> :public_key.pem_entry_decode()
+
+ @rye_pubkey hd(:public_key.pem_decode(File.read!("test/rye@niu.moe.key")))
+ |> :public_key.pem_entry_decode()
+
+ @lm_pubkey hd(
+ :public_key.pem_decode(File.read!("test/lucifermysticus@mst3k.interlinked.me.key"))
+ )
+ |> :public_key.pem_entry_decode()
+
+ def fetch_public_key(_), do: {:ok, @mastodon_admin_pubkey}
+
+ def refetch_public_key(%{params: %{"actor" => "https://niu.moe/users/rye"}}),
+ do: {:ok, @rye_pubkey}
+
+ def refetch_public_key(%{
+ params: %{"actor" => "https://mst3k.interlinked.me/users/luciferMysticus"}
+ }),
+ do: {:ok, @lm_pubkey}
+
+ def refetch_public_key(_), do: {:error, "no public key found"}
+end
diff --git a/test/test_helper.exs b/test/test_helper.exs
new file mode 100644
index 0000000..869559e
--- /dev/null
+++ b/test/test_helper.exs
@@ -0,0 +1 @@
+ExUnit.start()

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