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176 lignes
5.4 KiB
176 lignes
5.4 KiB
%% Vendored from hex_core v0.7.1, do not edit manually
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-module(r3_hex_repo).
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-export([
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get_names/1,
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get_versions/1,
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get_package/2,
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get_tarball/3
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]).
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%%====================================================================
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%% API functions
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%%====================================================================
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%% @doc
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%% Gets names resource from the repository.
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%%
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%% Examples:
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%%
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%% ```
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%% > r3_hex_repo:get_names(r3_hex_core:default_config()).
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%% {ok, {200, ...,
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%% [
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%% #{name => <<"package1">>},
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%% #{name => <<"package2">>},
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%% ]}}
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%% '''
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%% @end
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get_names(Config) when is_map(Config) ->
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Verify = maps:get(repo_verify_origin, Config, true),
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Decoder = fun(Data) ->
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case Verify of
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true -> r3_hex_registry:decode_names(Data, repo_name(Config));
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false -> r3_hex_registry:decode_names(Data, no_verify)
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end
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end,
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get_protobuf(Config, <<"names">>, Decoder).
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%% @doc
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%% Gets versions resource from the repository.
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%%
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%% Examples:
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%%
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%% ```
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%% > r3_hex_repo:get_versions(Config).
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%% {ok, {200, ...,
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%% [
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%% #{name => <<"package1">>, retired => [],
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%% versions => [<<"1.0.0">>]},
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%% #{name => <<"package2">>, retired => [<<"0.5.0>>"],
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%% versions => [<<"0.5.0">>, <<"1.0.0">>]},
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%% ]}}
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%% '''
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%% @end
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get_versions(Config) when is_map(Config) ->
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Verify = maps:get(repo_verify_origin, Config, true),
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Decoder = fun(Data) ->
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case Verify of
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true -> r3_hex_registry:decode_versions(Data, repo_name(Config));
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false -> r3_hex_registry:decode_versions(Data, no_verify)
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end
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end,
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get_protobuf(Config, <<"versions">>, Decoder).
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%% @doc
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%% Gets package resource from the repository.
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%%
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%% Examples:
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%%
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%% ```
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%% > r3_hex_repo:get_package(r3_hex_core:default_config(), <<"package1">>).
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%% {ok, {200, ...,
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%% {
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%% #{checksum => ..., version => <<"0.5.0">>, dependencies => []},
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%% #{checksum => ..., version => <<"1.0.0">>, dependencies => [
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%% #{package => <<"package2">>, optional => true, requirement => <<"~> 0.1">>}
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%% ]},
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%% ]}}
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%% '''
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%% @end
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get_package(Config, Name) when is_binary(Name) and is_map(Config) ->
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Verify = maps:get(repo_verify_origin, Config, true),
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Decoder = fun(Data) ->
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case Verify of
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true -> r3_hex_registry:decode_package(Data, repo_name(Config), Name);
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false -> r3_hex_registry:decode_package(Data, no_verify, no_verify)
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end
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end,
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get_protobuf(Config, <<"packages/", Name/binary>>, Decoder).
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%% @doc
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%% Gets tarball from the repository.
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%%
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%% Examples:
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%%
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%% ```
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%% > {ok, {200, _, Tarball}} = r3_hex_repo:get_tarball(r3_hex_core:default_config(), <<"package1">>, <<"1.0.0">>),
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%% > {ok, #{metadata := Metadata}} = r3_hex_tarball:unpack(Tarball, memory).
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%% '''
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%% @end
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get_tarball(Config, Name, Version) ->
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ReqHeaders = make_headers(Config),
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case get(Config, tarball_url(Config, Name, Version), ReqHeaders) of
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{ok, {200, RespHeaders, Tarball}} ->
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{ok, {200, RespHeaders, Tarball}};
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Other ->
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Other
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end.
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%%====================================================================
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%% Internal functions
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%%====================================================================
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get(Config, URI, Headers) ->
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r3_hex_http:request(Config, get, URI, Headers, undefined).
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get_protobuf(Config, Path, Decoder) ->
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PublicKey = maps:get(repo_public_key, Config),
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ReqHeaders = make_headers(Config),
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case get(Config, build_url(Config, Path), ReqHeaders) of
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{ok, {200, RespHeaders, Compressed}} ->
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Signed = zlib:gunzip(Compressed),
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case decode(Signed, PublicKey, Decoder, Config) of
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{ok, Decoded} ->
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{ok, {200, RespHeaders, Decoded}};
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{error, _} = Error ->
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Error
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end;
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Other ->
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Other
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end.
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decode(Signed, PublicKey, Decoder, Config) ->
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Verify = maps:get(repo_verify, Config, true),
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case Verify of
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true ->
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case r3_hex_registry:decode_and_verify_signed(Signed, PublicKey) of
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{ok, Payload} ->
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Decoder(Payload);
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Other ->
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Other
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end;
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false ->
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#{payload := Payload} = r3_hex_registry:decode_signed(Signed),
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Decoder(Payload)
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end.
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repo_name(#{repo_organization := Name}) when is_binary(Name) -> Name;
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repo_name(#{repo_name := Name}) when is_binary(Name) -> Name.
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tarball_url(Config, Name, Version) ->
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Filename = tarball_filename(Name, Version),
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build_url(Config, <<"tarballs/", Filename/binary>>).
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build_url(#{repo_url := URI, repo_organization := Org}, Path) when is_binary(Org) ->
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<<URI/binary, "/repos/", Org/binary, "/", Path/binary>>;
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build_url(#{repo_url := URI, repo_organization := undefined}, Path) ->
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<<URI/binary, "/", Path/binary>>;
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build_url(Config, Path) ->
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build_url(Config#{repo_organization => undefined}, Path).
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tarball_filename(Name, Version) ->
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<<Name/binary, "-", Version/binary, ".tar">>.
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make_headers(Config) ->
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maps:fold(fun set_header/3, #{}, Config).
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set_header(http_etag, ETag, Headers) when is_binary(ETag) -> maps:put(<<"if-none-match">>, ETag, Headers);
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set_header(repo_key, Token, Headers) when is_binary(Token) -> maps:put(<<"authorization">>, Token, Headers);
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set_header(_, _, Headers) -> Headers.
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