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Handle DTLS handshake
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mickel8 committed Oct 6, 2023
1 parent 1439f77 commit b9500b3
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2 changes: 1 addition & 1 deletion examples/example.exs
Original file line number Diff line number Diff line change
@@ -1,4 +1,4 @@
Mix.install([{:gun, "~> 2.0.1"}, {:ex_webrtc, path: "./", force: true}, {:jason, "~> 1.4.0"}])
Mix.install([{:gun, "~> 2.0.1"}, {:ex_webrtc, path: "./"}, {:jason, "~> 1.4.0"}])

require Logger
Logger.configure(level: :info)
Expand Down
142 changes: 102 additions & 40 deletions lib/ex_webrtc/peer_connection.ex
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@ defmodule ExWebRTC.PeerConnection do

use GenServer

require Logger

alias __MODULE__.Configuration
alias ExICE.ICEAgent
alias ExWebRTC.{IceCandidate, SessionDescription}
Expand All @@ -20,45 +22,49 @@ defmodule ExWebRTC.PeerConnection do
:current_remote_desc,
:pending_remote_desc,
:ice_agent,
:dtls_client,
:ice_state,
:dtls_buffered_packets,
dtls_finished: false,
transceivers: [],
signaling_state: :stable
]

@dummy_sdp "
v=0\r\n
o=- 7596991810024734139 2 IN IP4 127.0.0.1\r\n
s=-\r\n
t=0 0\r\n
a=group:BUNDLE 0\r\n
a=extmap-allow-mixed\r\n
a=msid-semantic: WMS\r\n
m=audio 9 UDP/TLS/RTP/SAVPF 111 63 9 0 8 13 110 126\r\n
c=IN IP4 0.0.0.0\r\n
a=rtcp:9 IN IP4 0.0.0.0\r\n
a=ice-ufrag:vx/1\r\n
a=ice-pwd:ldFUrCsXvndFY2L1u0UQ7ikf\r\n
a=ice-options:trickle\r\n
a=fingerprint:sha-256 76:61:77:1E:7C:2E:BB:CD:19:B5:27:4E:A7:40:84:06:6B:17:97:AB:C4:61:90:16:EE:96:9F:9E:BD:42:96:3D\r\n
a=setup:passive\r\n
a=mid:0\r\n
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level\r\n
a=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\n
a=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01\r\n
a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid\r\n
a=recvonly\r\n
a=rtcp-mux\r\n
a=rtpmap:111 opus/48000/2\r\n
a=rtcp-fb:111 transport-cc\r\n
a=fmtp:111 minptime=10;useinbandfec=1\r\n
a=rtpmap:63 red/48000/2\r\n
a=fmtp:63 111/111\r\n
a=rtpmap:9 G722/8000\r\n
a=rtpmap:0 PCMU/8000\r\n
a=rtpmap:8 PCMA/8000\r\n
a=rtpmap:13 CN/8000\r\n
a=rtpmap:110 telephone-event/48000\r\n
a=rtpmap:126 telephone-event/8000\r\n
"
@dummy_sdp """
v=0
o=- 7596991810024734139 2 IN IP4 127.0.0.1
s=-
t=0 0
a=group:BUNDLE 0
a=extmap-allow-mixed
a=msid-semantic: WMS
m=audio 9 UDP/TLS/RTP/SAVPF 111 63 9 0 8 13 110 126
c=IN IP4 0.0.0.0
a=rtcp:9 IN IP4 0.0.0.0
a=ice-ufrag:vx/1
a=ice-pwd:ldFUrCsXvndFY2L1u0UQ7ikf
a=ice-options:trickle
a=fingerprint:sha-256 76:61:77:1E:7C:2E:BB:CD:19:B5:27:4E:A7:40:84:06:6B:17:97:AB:C4:61:90:16:EE:96:9F:9E:BD:42:96:3D
a=setup:passive
a=mid:0
a=extmap:1 urn:ietf:params:rtp-hdrext:ssrc-audio-level
a=extmap:2 http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time
a=extmap:3 http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01
a=extmap:4 urn:ietf:params:rtp-hdrext:sdes:mid
a=recvonly
a=rtcp-mux
a=rtpmap:111 opus/48000/2
a=rtcp-fb:111 transport-cc
a=fmtp:111 minptime=10;useinbandfec=1
a=rtpmap:63 red/48000/2
a=fmtp:63 111/111
a=rtpmap:9 G722/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:13 CN/8000
a=rtpmap:110 telephone-event/48000
a=rtpmap:126 telephone-event/8000
"""

#### API ####

Expand Down Expand Up @@ -114,8 +120,15 @@ defmodule ExWebRTC.PeerConnection do
|> Enum.filter(&String.starts_with?(&1, "stun:"))

{:ok, ice_agent} = ICEAgent.start_link(:controlled, stun_servers: stun_servers)
{:ok, dtls_client} = ExDTLS.start_link(client_mode: false, dtls_srtp: true)

state = %__MODULE__{
owner: owner,
config: config,
ice_agent: ice_agent,
dtls_client: dtls_client
}

state = %__MODULE__{owner: owner, config: config, ice_agent: ice_agent}
{:ok, state}
end

Expand All @@ -129,14 +142,24 @@ defmodule ExWebRTC.PeerConnection do
when state.signaling_state in [:have_remote_offer, :have_local_pranswer] do
{:ok, ufrag, pwd} = ICEAgent.get_local_credentials(state.ice_agent)

{:ok, dtls_fingerprint} = ExDTLS.get_cert_fingerprint(state.dtls_client)

sdp = ExSDP.parse!(@dummy_sdp)
media = hd(sdp.media)

attrs =
Enum.map(media.attributes, fn
{:ice_ufrag, _} -> {:ice_ufrag, ufrag}
{:ice_pwd, _} -> {:ice_pwd, pwd}
other -> other
{:ice_ufrag, _} ->
{:ice_ufrag, ufrag}

{:ice_pwd, _} ->
{:ice_pwd, pwd}

{:fingerprint, {hash_function, _}} ->
{:fingerprint, {hash_function, hex_dump(dtls_fingerprint)}}

other ->
other
end)

media = Map.put(media, :attributes, attrs)
Expand Down Expand Up @@ -188,6 +211,16 @@ defmodule ExWebRTC.PeerConnection do
{:reply, :ok, state}
end

@impl true
def handle_info({:ex_ice, _from, :connected}, state) do
if state.dtls_buffered_packets do
Logger.info("Sending buffered DTLS packets")
ICEAgent.send_data(state.ice_agent, state.dtls_buffered_packets)
end

{:noreply, %__MODULE__{state | ice_state: :connected}}
end

@impl true
def handle_info({:ex_ice, _from, {:new_candidate, candidate}}, state) do
candidate = %IceCandidate{
Expand All @@ -202,9 +235,32 @@ defmodule ExWebRTC.PeerConnection do
{:noreply, state}
end

@impl true
def handle_info({:ex_ice, _from, {:data, data}}, %{dtls_finished: false} = state) do
case ExDTLS.process(state.dtls_client, data) do
{:handshake_packets, packets} when state.ice_state in [:connected, :completed] ->
:ok = ICEAgent.send_data(state.ice_agent, packets)

{:handshake_packets, packets} ->
{:noreply, %__MODULE__{state | dtls_buffered_packets: packets}}

{:handshake_finished, _keying_material, packets} ->
Logger.info("DTLS finished")
:ok = ICEAgent.send_data(state.ice_agent, packets)
{:noreply, %__MODULE__{state | dtls_finished: true}}

{:handshake_finished, _keying_material} ->
Logger.info("DTLS finished")
{:noreply, %__MODULE__{state | dtls_finished: true}}

other ->

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{:noreply, state}
end
end

@impl true
def handle_info(msg, state) do

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IO.inspect(msg, label: :OTHER_MSG)
# IO.inspect(msg, label: :OTHER_MSG)
{:noreply, state}
end

Expand Down Expand Up @@ -244,4 +300,10 @@ defmodule ExWebRTC.PeerConnection do

defp maybe_next_state(:have_remote_pranswer, :remote, :answer), do: {:ok, :stable}
defp maybe_next_state(:have_remote_pranswer, _, _), do: {:error, :invalid_transition}

defp hex_dump(digest_str) do
digest_str
|> :binary.bin_to_list()
|> Enum.map_join(":", &Base.encode16(<<&1>>))
end
end
9 changes: 6 additions & 3 deletions mix.exs
Original file line number Diff line number Diff line change
Expand Up @@ -45,12 +45,15 @@ defmodule ExWebRTC.MixProject do

defp deps do
[
{:ex_sdp, "~> 0.11"},
{:ex_ice, "~> 0.1"},
{:ex_dtls, "~> 0.12.0"},

# dev/test
{:excoveralls, "~> 0.14", only: [:dev, :test], runtime: false},
{:ex_doc, "~> 0.30", only: :dev, runtime: false},
{:credo, "~> 1.7", only: [:dev, :test], runtime: false},
{:dialyxir, "~> 1.4", only: [:dev, :test], runtime: false},
{:ex_sdp, "~> 0.11"},
{:ex_ice, "~> 0.1"}
{:dialyxir, "~> 1.4", only: [:dev, :test], runtime: false}
]
end

Expand Down
17 changes: 17 additions & 0 deletions mix.lock
Original file line number Diff line number Diff line change
@@ -1,20 +1,37 @@
%{
"bunch": {:hex, :bunch, "1.6.0", "4775f8cdf5e801c06beed3913b0bd53fceec9d63380cdcccbda6be125a6cfd54", [:mix], [], "hexpm", "ef4e9abf83f0299d599daed3764d19e8eac5d27a5237e5e4d5e2c129cfeb9a22"},
"bunch_native": {:hex, :bunch_native, "0.5.0", "8ac1536789a597599c10b652e0b526d8833348c19e4739a0759a2bedfd924e63", [:mix], [{:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "24190c760e32b23b36edeb2dc4852515c7c5b3b8675b1a864e0715bdd1c8f80d"},
"bundlex": {:hex, :bundlex, "1.2.0", "a89869208a019376a38e8a10e1bd573dcbeae8addd381c2cd74e2817010bef8f", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:qex, "~> 0.5", [hex: :qex, repo: "hexpm", optional: false]}, {:req, "~> 0.4.0", [hex: :req, repo: "hexpm", optional: false]}, {:secure_random, "~> 0.5", [hex: :secure_random, repo: "hexpm", optional: false]}, {:zarex, "~> 1.0", [hex: :zarex, repo: "hexpm", optional: false]}], "hexpm", "d2182b91a2a53847baadf4745ad2291853e786ad28671f474a611e7703dbca9b"},
"bunt": {:hex, :bunt, "0.2.1", "e2d4792f7bc0ced7583ab54922808919518d0e57ee162901a16a1b6664ef3b14", [:mix], [], "hexpm", "a330bfb4245239787b15005e66ae6845c9cd524a288f0d141c148b02603777a5"},
"castore": {:hex, :castore, "1.0.4", "ff4d0fb2e6411c0479b1d965a814ea6d00e51eb2f58697446e9c41a97d940b28", [:mix], [], "hexpm", "9418c1b8144e11656f0be99943db4caf04612e3eaecefb5dae9a2a87565584f8"},
"credo": {:hex, :credo, "1.7.0", "6119bee47272e85995598ee04f2ebbed3e947678dee048d10b5feca139435f75", [:mix], [{:bunt, "~> 0.2.1", [hex: :bunt, repo: "hexpm", optional: false]}, {:file_system, "~> 0.2.8", [hex: :file_system, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "6839fcf63d1f0d1c0f450abc8564a57c43d644077ab96f2934563e68b8a769d7"},
"dialyxir": {:hex, :dialyxir, "1.4.1", "a22ed1e7bd3a3e3f197b68d806ef66acb61ee8f57b3ac85fc5d57354c5482a93", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "84b795d6d7796297cca5a3118444b80c7d94f7ce247d49886e7c291e1ae49801"},
"earmark_parser": {:hex, :earmark_parser, "1.4.34", "b0fbb4fd333ee7e9babc07e9573796850759cd12796fcf2fec59cf0031cbaad9", [:mix], [], "hexpm", "cc0d7a6f2367e4504867b4ec38ceee24e89ee6bca9c7b94a6d940f54aba2e8d5"},
"erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
"ex_doc": {:hex, :ex_doc, "0.30.6", "5f8b54854b240a2b55c9734c4b1d0dd7bdd41f71a095d42a70445c03cf05a281", [:mix], [{:earmark_parser, "~> 1.4.31", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "bd48f2ddacf4e482c727f9293d9498e0881597eae6ddc3d9562bd7923375109f"},
"ex_dtls": {:hex, :ex_dtls, "0.12.0", "648522f53340b42301eae57627bb8276555be508ec1010561e606b1621d9d2e9", [:mix], [{:unifex, "~> 1.0", [hex: :unifex, repo: "hexpm", optional: false]}], "hexpm", "0bc2d0de146e7cf9d85eb8d2c0a6a518479a66a2ded8a79c0960eced23fe73a9"},
"ex_ice": {:hex, :ex_ice, "0.1.0", "2653c884872d8769cf9fc655c74002a63ed6c21be1b3c2badfa42bdc74de2355", [:mix], [{:ex_stun, "~> 0.1.0", [hex: :ex_stun, repo: "hexpm", optional: false]}], "hexpm", "e2539a321f87f31997ba974d532d00511e5828f2f113b550b1ef6aa799dd2ffe"},
"ex_sdp": {:hex, :ex_sdp, "0.11.0", "19e3af1d70b945381752db3139dfc22a19da1e9394036721449b7fb8c49fe039", [:mix], [{:bunch, "~> 1.3", [hex: :bunch, repo: "hexpm", optional: false]}, {:uuid, "~> 1.1", [hex: :uuid, repo: "hexpm", optional: false]}], "hexpm", "7a3fe42f4ec0c18de09b10464829c27482d81d9c50c21bdebdbcfe17d2046408"},
"ex_stun": {:hex, :ex_stun, "0.1.0", "252474bf4c8519fbf4bc0fbfc6a1b846a634b1478c65dbbfb4b6ab4e33c2a95a", [:mix], [], "hexpm", "629fc8be45b624a92522f81d85ba001877b1f0745889a2419bdb678790d7480c"},
"excoveralls": {:hex, :excoveralls, "0.17.1", "83fa7906ef23aa7fc8ad7ee469c357a63b1b3d55dd701ff5b9ce1f72442b2874", [:mix], [{:castore, "~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "95bc6fda953e84c60f14da4a198880336205464e75383ec0f570180567985ae0"},
"file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},
"finch": {:hex, :finch, "0.16.0", "40733f02c89f94a112518071c0a91fe86069560f5dbdb39f9150042f44dcfb1a", [: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", "f660174c4d519e5fec629016054d60edd822cdfe2b7270836739ac2f97735ec5"},
"hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},
"jason": {:hex, :jason, "1.4.1", "af1504e35f629ddcdd6addb3513c3853991f694921b1b9368b0bd32beb9f1b63", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fbb01ecdfd565b56261302f7e1fcc27c4fb8f32d56eab74db621fc154604a7a1"},
"makeup": {:hex, :makeup, "1.1.0", "6b67c8bc2882a6b6a445859952a602afc1a41c2e08379ca057c0f525366fc3ca", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "0a45ed501f4a8897f580eabf99a2e5234ea3e75a4373c8a52824f6e873be57a6"},
"makeup_elixir": {:hex, :makeup_elixir, "0.16.1", "cc9e3ca312f1cfeccc572b37a09980287e243648108384b97ff2b76e505c3555", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "e127a341ad1b209bd80f7bd1620a15693a9908ed780c3b763bccf7d200c767c6"},
"makeup_erlang": {:hex, :makeup_erlang, "0.1.2", "ad87296a092a46e03b7e9b0be7631ddcf64c790fa68a9ef5323b6cbb36affc72", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f3f5a1ca93ce6e092d92b6d9c049bcda58a3b617a8d888f8e7231c85630e8108"},
"mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
"mint": {:hex, :mint, "1.5.1", "8db5239e56738552d85af398798c80648db0e90f343c8469f6c6d8898944fb6f", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "4a63e1e76a7c3956abd2c72f370a0d0aecddc3976dea5c27eccbecfa5e7d5b1e"},
"nimble_options": {:hex, :nimble_options, "1.0.2", "92098a74df0072ff37d0c12ace58574d26880e522c22801437151a159392270e", [:mix], [], "hexpm", "fd12a8db2021036ce12a309f26f564ec367373265b53e25403f0ee697380f1b8"},
"nimble_parsec": {:hex, :nimble_parsec, "1.3.1", "2c54013ecf170e249e9291ed0a62e5832f70a476c61da16f6aac6dca0189f2af", [:mix], [], "hexpm", "2682e3c0b2eb58d90c6375fc0cc30bc7be06f365bf72608804fb9cffa5e1b167"},
"nimble_pool": {:hex, :nimble_pool, "1.0.0", "5eb82705d138f4dd4423f69ceb19ac667b3b492ae570c9f5c900bb3d2f50a847", [:mix], [], "hexpm", "80be3b882d2d351882256087078e1b1952a28bf98d0a287be87e4a24a710b67a"},
"qex": {:hex, :qex, "0.5.1", "0d82c0f008551d24fffb99d97f8299afcb8ea9cf99582b770bd004ed5af63fd6", [:mix], [], "hexpm", "935a39fdaf2445834b95951456559e9dc2063d0a055742c558a99987b38d6bab"},
"req": {:hex, :req, "0.4.4", "a17b6bec956c9af4f08b5d8e8a6fc6e4edf24ccc0ac7bf363a90bba7a0f0138c", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.9", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 1.6 or ~> 2.0", [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", "2618c0493444fee927d12073afb42e9154e766b3f4448e1011f0d3d551d1a011"},
"secure_random": {:hex, :secure_random, "0.5.1", "c5532b37c89d175c328f5196a0c2a5680b15ebce3e654da37129a9fe40ebf51b", [:mix], [], "hexpm", "1b9754f15e3940a143baafd19da12293f100044df69ea12db5d72878312ae6ab"},
"shmex": {:hex, :shmex, "0.5.0", "7dc4fb1a8bd851085a652605d690bdd070628717864b442f53d3447326bcd3e8", [:mix], [{:bunch_native, "~> 0.5.0", [hex: :bunch_native, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}], "hexpm", "b67bb1e22734758397c84458dbb746519e28eac210423c267c7248e59fc97bdc"},
"telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
"unifex": {:hex, :unifex, "1.1.0", "26b1bcb6c3b3454e1ea15f85b2e570aaa5b5c609566aa9f5c2e0a8b213379d6b", [:mix], [{:bunch, "~> 1.0", [hex: :bunch, repo: "hexpm", optional: false]}, {:bundlex, "~> 1.0", [hex: :bundlex, repo: "hexpm", optional: false]}, {:shmex, "~> 0.5.0", [hex: :shmex, repo: "hexpm", optional: false]}], "hexpm", "d8f47e9e3240301f5b20eec5792d1d4341e1a3a268d94f7204703b48da4aaa06"},
"uuid": {:hex, :uuid, "1.1.8", "e22fc04499de0de3ed1116b770c7737779f226ceefa0badb3592e64d5cfb4eb9", [:mix], [], "hexpm", "c790593b4c3b601f5dc2378baae7efaf5b3d73c4c6456ba85759905be792f2ac"},
"zarex": {:hex, :zarex, "1.0.3", "a9e9527a1c31df7f39499819bd76ccb15b0b4e479eed5a4a40db9df7ad7db25c", [:mix], [], "hexpm", "4400a7d33bbf222383ce9a3d5ec9411798eb2b12e86c65ad8e6ac08d8116ca8b"},
}

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