gRPC: fix server reflection (#8945)
* add: gogoreflection * fix: server reflection * fix: make tests resolve imports in a transitive way * chore: cleanup getMessageType * chore: lint * add: extensions reflection * chore: update interact-node.md docs * chore: update CHANGELOG.md * Update server/grpc/gogoreflection/fix_registration.go Co-authored-by: Robert Zaremba <robert@zaremba.ch> Co-authored-by: Jonathan Gimeno <jgimeno@gmail.com> Co-authored-by: Alessio Treglia <alessio@tendermint.com> Co-authored-by: Robert Zaremba <robert@zaremba.ch>
This commit is contained in:
Frojdi Dymylja
GitHub
parent
e9e978d543
commit
ac48ffe748
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@ -86,6 +86,7 @@ Ref: https://keepachangelog.com/en/1.0.0/
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### Bug Fixes
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* (gRPC) [\#8945](https://github.com/cosmos/cosmos-sdk/pull/8945) gRPC reflection now works correctly.
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* (keyring) [#\8635](https://github.com/cosmos/cosmos-sdk/issues/8635) Remove hardcoded default passphrase value on `NewMnemonic`
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* (x/bank) [\#8434](https://github.com/cosmos/cosmos-sdk/pull/8434) Fix legacy REST API `GET /bank/total` and `GET /bank/total/{denom}` in swagger
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* (x/slashing) [\#8427](https://github.com/cosmos/cosmos-sdk/pull/8427) Fix query signing infos command
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@ -60,7 +60,7 @@ Since the code generation library largely depends on your own tech stack, we wil
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### grpcurl
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[grpcurl])https://github.com/fullstorydev/grpcurl is like `curl` but for gRPC. It is also available as a Go library, but we will use it only as a CLI command for debugging and testing purposes. Follow the instructions in the previous link to install it.
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[grpcurl](https://github.com/fullstorydev/grpcurl) is like `curl` but for gRPC. It is also available as a Go library, but we will use it only as a CLI command for debugging and testing purposes. Follow the instructions in the previous link to install it.
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Assuming you have a local node running (either a localnet, or connected a live network), you should be able to run the following command to list the Protobuf services available (you can replace `localhost:9000` by the gRPC server endpoint of another node, which is configured under the `grpc.address` field inside [`app.toml`](../run-node/run-node.md#configuring-the-node-using-apptoml)):
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@ -70,27 +70,19 @@ grpcurl -plaintext localhost:9090 list
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You should see a list of gRPC services, like `cosmos.bank.v1beta1.Query`. This is called reflection, which is a Protobuf endpoint returning a description of all available endpoints. Each of these represents a different Protobuf service, and each service exposes multiple RPC methods you can query against.
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In the Cosmos SDK, we use [gogoprotobuf](https://github.com/gogo/protobuf) for code generation, and [grpc-go](https://github.com/grpc/grpc-go) for creating the gRPC server. Unfortunately, these two don't play well together, and more in-depth reflection (such as using grpcurl's `describe`) is not possible. See [this issue](https://github.com/grpc/grpc-go/issues/1873) for more info.
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Instead, we need to manually pass the reference to relevant `.proto` files. For example:
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In order to get a description of the service you can run the following command:
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```bash
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grpcurl \
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-import-path ./proto \ # Import these proto files too
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-import-path ./third_party/proto \ # Import these proto files too
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-proto ./proto/cosmos/bank/v1beta1/query.proto \ # That's the proto file with the description of your service
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localhost:9090 \
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describe cosmos.bank.v1beta1.Query # Service we want to inspect
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```
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Once the Protobuf definitions are given, making a gRPC query is then straightforward, by calling the correct `Query` service RPC method, and by passing the request argument as data (`-d` flag):
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It's also possible to execute an RPC call to query the node for information:
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```bash
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grpcurl \
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-plaintext
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-import-path ./proto \
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-import-path ./third_party/proto \
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-proto ./proto/cosmos/bank/v1beta1/query.proto \
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-d '{"address":"$MY_VALIDATOR"}' \
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localhost:9090 \
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cosmos.bank.v1beta1.Query/AllBalances
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@ -104,10 +96,7 @@ You may also query for historical data by passing some [gRPC metadata](https://g
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```bash
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grpcurl \
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-plaintext
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-import-path ./proto \
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-import-path ./third_party/proto \
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-proto ./proto/cosmos/bank/v1beta1/query.proto \
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-plaintext \
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-H "x-cosmos-block-height: 279256" \
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-d '{"address":"$MY_VALIDATOR"}' \
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localhost:9090 \
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3
go.mod
3
go.mod
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@ -27,6 +27,7 @@ require (
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github.com/hashicorp/golang-lru v0.5.4
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github.com/hdevalence/ed25519consensus v0.0.0-20210204194344-59a8610d2b87
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github.com/improbable-eng/grpc-web v0.14.0
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github.com/jhump/protoreflect v1.8.2
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github.com/magiconair/properties v1.8.4
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github.com/mattn/go-isatty v0.0.12
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github.com/otiai10/copy v1.5.0
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@ -53,7 +54,7 @@ require (
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golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad
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google.golang.org/genproto v0.0.0-20210114201628-6edceaf6022f
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google.golang.org/grpc v1.36.0
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google.golang.org/protobuf v1.25.0
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google.golang.org/protobuf v1.25.1-0.20200805231151-a709e31e5d12
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gopkg.in/ini.v1 v1.61.0 // indirect
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gopkg.in/yaml.v2 v2.4.0
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nhooyr.io/websocket v1.8.6 // indirect
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11
go.sum
11
go.sum
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@ -290,6 +290,7 @@ github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+
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github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
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github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
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github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
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github.com/gordonklaus/ineffassign v0.0.0-20200309095847-7953dde2c7bf/go.mod h1:cuNKsD1zp2v6XfE/orVX2QE1LC+i254ceGcVeDT3pTU=
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github.com/gorilla/context v1.1.1/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
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github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH4=
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github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q=
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@ -369,6 +370,8 @@ github.com/influxdata/influxdb1-client v0.0.0-20191209144304-8bf82d3c094d/go.mod
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github.com/jackpal/go-nat-pmp v1.0.2-0.20160603034137-1fa385a6f458/go.mod h1:QPH045xvCAeXUZOxsnwmrtiCoxIr9eob+4orBN1SBKc=
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github.com/jessevdk/go-flags v0.0.0-20141203071132-1679536dcc89/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
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github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
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github.com/jhump/protoreflect v1.8.2 h1:k2xE7wcUomeqwY0LDCYA16y4WWfyTcMx5mKhk0d4ua0=
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github.com/jhump/protoreflect v1.8.2/go.mod h1:7GcYQDdMU/O/BBrl/cX6PNHpXh6cenjd8pneu5yW7Tg=
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github.com/jmespath/go-jmespath v0.0.0-20180206201540-c2b33e8439af/go.mod h1:Nht3zPeWKUH0NzdCt2Blrr5ys8VGpn0CEB0cQHVjt7k=
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github.com/jmhodges/levigo v1.0.0 h1:q5EC36kV79HWeTBWsod3mG11EgStG3qArTKcvlksN1U=
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github.com/jmhodges/levigo v1.0.0/go.mod h1:Q6Qx+uH3RAqyK4rFQroq9RL7mdkABMcfhEI+nNuzMJQ=
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@ -473,6 +476,7 @@ github.com/nats-io/nkeys v0.1.3/go.mod h1:xpnFELMwJABBLVhffcfd1MZx6VsNRFpEugbxzi
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github.com/nats-io/nuid v1.0.1/go.mod h1:19wcPz3Ph3q0Jbyiqsd0kePYG7A95tJPxeL+1OSON2c=
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github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e h1:fD57ERR4JtEqsWbfPhv4DMiApHyliiK5xCTNVSPiaAs=
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github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
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github.com/nishanths/predeclared v0.0.0-20200524104333-86fad755b4d3/go.mod h1:nt3d53pc1VYcphSCIaYAJtnPYnr3Zyn8fMq2wvPGPso=
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github.com/nxadm/tail v1.4.4 h1:DQuhQpB1tVlglWS2hLQ5OV6B5r8aGxSrPc5Qo6uTN78=
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github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
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github.com/oklog/oklog v0.3.2/go.mod h1:FCV+B7mhrz4o+ueLpx+KqkyXRGMWOYEvfiXtdGtbWGs=
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@ -699,6 +703,7 @@ github.com/wsddn/go-ecdh v0.0.0-20161211032359-48726bab9208/go.mod h1:IotVbo4F+m
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github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
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github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
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github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
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github.com/zondax/hid v0.9.0 h1:eiT3P6vNxAEVxXMw66eZUAAnU2zD33JBkfG/EnfAKl8=
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github.com/zondax/hid v0.9.0/go.mod h1:l5wttcP0jwtdLjqjMMWFVEE7d1zO0jvSPA9OPZxWpEM=
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@ -888,10 +893,13 @@ golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtn
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golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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golang.org/x/tools v0.0.0-20191112195655-aa38f8e97acc/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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golang.org/x/tools v0.0.0-20191130070609-6e064ea0cf2d/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
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golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
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golang.org/x/tools v0.0.0-20200117012304-6edc0a871e69/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
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golang.org/x/tools v0.0.0-20200207183749-b753a1ba74fa/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
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golang.org/x/tools v0.0.0-20200522201501-cb1345f3a375/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
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golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
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golang.org/x/tools v0.0.0-20200717024301-6ddee64345a6/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
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golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
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golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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@ -941,6 +949,8 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
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google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4=
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google.golang.org/protobuf v1.25.0 h1:Ejskq+SyPohKW+1uil0JJMtmHCgJPJ/qWTxr8qp+R4c=
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google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
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google.golang.org/protobuf v1.25.1-0.20200805231151-a709e31e5d12 h1:OwhZOOMuf7leLaSCuxtQ9FW7ui2L2L6UKOtKAUqovUQ=
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google.golang.org/protobuf v1.25.1-0.20200805231151-a709e31e5d12/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
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gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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@ -981,6 +991,7 @@ honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWh
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honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
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honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
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nhooyr.io/websocket v1.8.6 h1:s+C3xAMLwGmlI31Nyn/eAehUlZPwfYZu2JXM621Q5/k=
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nhooyr.io/websocket v1.8.6/go.mod h1:B70DZP8IakI65RVQ51MsWP/8jndNma26DVA/nFSCgW0=
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rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
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@ -0,0 +1,5 @@
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// Package gogoreflection implements gRPC reflection for gogoproto consumers
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// the normal reflection library does not work as it points to a different
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// singleton registry. The API and codebase is taken from the official gRPC
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// reflection repository.
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package gogoreflection
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@ -0,0 +1,143 @@
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package gogoreflection
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import (
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"bytes"
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"compress/gzip"
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"fmt"
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"reflect"
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_ "github.com/gogo/protobuf/gogoproto" // required so it does register the gogoproto file descriptor
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gogoproto "github.com/gogo/protobuf/proto"
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// nolint: staticcheck
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"github.com/golang/protobuf/proto"
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dpb "github.com/golang/protobuf/protoc-gen-go/descriptor"
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_ "github.com/regen-network/cosmos-proto" // look above
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)
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var importsToFix = map[string]string{
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"gogo.proto": "gogoproto/gogo.proto",
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"cosmos.proto": "cosmos_proto/cosmos.proto",
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}
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// fixRegistration is required because certain files register themselves in a way
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// but are imported by other files in a different way.
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// NOTE(fdymylja): This fix should not be needed and should be addressed in some CI.
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// Currently every cosmos-sdk proto file is importing gogo.proto as gogoproto/gogo.proto,
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// but gogo.proto registers itself as gogo.proto, same goes for cosmos.proto.
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func fixRegistration(registeredAs, importedAs string) error {
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raw := gogoproto.FileDescriptor(registeredAs)
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if len(raw) == 0 {
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return fmt.Errorf("file descriptor not found for %s", registeredAs)
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}
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fd, err := decodeFileDesc(raw)
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if err != nil {
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return err
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}
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// fix name
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*fd.Name = importedAs
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fixedRaw, err := compress(fd)
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if err != nil {
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return fmt.Errorf("unable to compress: %w", err)
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}
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gogoproto.RegisterFile(importedAs, fixedRaw)
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return nil
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}
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func init() {
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// we need to fix the gogoproto filedesc to match the import path
|
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// in theory this shouldn't be required, generally speaking
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// proto files should be imported as their registration path
|
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|
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for registeredAs, importedAs := range importsToFix {
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err := fixRegistration(registeredAs, importedAs)
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if err != nil {
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panic(err)
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}
|
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}
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}
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|
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// compress compresses the given file descriptor
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// nolint: interfacer
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||||
func compress(fd *dpb.FileDescriptorProto) ([]byte, error) {
|
||||
fdBytes, err := proto.Marshal(fd)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
buf := new(bytes.Buffer)
|
||||
cw := gzip.NewWriter(buf)
|
||||
_, err = cw.Write(fdBytes)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
err = cw.Close()
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return buf.Bytes(), nil
|
||||
}
|
||||
|
||||
func getFileDescriptor(filePath string) []byte {
|
||||
// since we got well known descriptors which are not registered into gogoproto registry
|
||||
// but are instead registered into the proto one, we need to check both
|
||||
fd := gogoproto.FileDescriptor(filePath)
|
||||
if len(fd) != 0 {
|
||||
return fd
|
||||
}
|
||||
// nolint: staticcheck
|
||||
return proto.FileDescriptor(filePath)
|
||||
}
|
||||
|
||||
func getMessageType(name string) reflect.Type {
|
||||
typ := gogoproto.MessageType(name)
|
||||
if typ != nil {
|
||||
return typ
|
||||
}
|
||||
// nolint: staticcheck
|
||||
return proto.MessageType(name)
|
||||
}
|
||||
|
||||
func getExtension(extID int32, m proto.Message) *gogoproto.ExtensionDesc {
|
||||
// check first in gogoproto registry
|
||||
for id, desc := range gogoproto.RegisteredExtensions(m) {
|
||||
if id == extID {
|
||||
return desc
|
||||
}
|
||||
}
|
||||
// check into proto registry
|
||||
// nolint: staticcheck
|
||||
for id, desc := range proto.RegisteredExtensions(m) {
|
||||
if id == extID {
|
||||
return &gogoproto.ExtensionDesc{
|
||||
ExtendedType: desc.ExtendedType,
|
||||
ExtensionType: desc.ExtensionType,
|
||||
Field: desc.Field,
|
||||
Name: desc.Name,
|
||||
Tag: desc.Tag,
|
||||
Filename: desc.Filename,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
func getExtensionsNumbers(m proto.Message) []int32 {
|
||||
gogoProtoExts := gogoproto.RegisteredExtensions(m)
|
||||
out := make([]int32, 0, len(gogoProtoExts))
|
||||
for id := range gogoProtoExts {
|
||||
out = append(out, id)
|
||||
}
|
||||
if len(out) != 0 {
|
||||
return out
|
||||
}
|
||||
// nolint: staticcheck
|
||||
protoExts := proto.RegisteredExtensions(m)
|
||||
out = make([]int32, 0, len(protoExts))
|
||||
for id := range protoExts {
|
||||
out = append(out, id)
|
||||
}
|
||||
return out
|
||||
}
|
||||
|
|
@ -0,0 +1,22 @@
|
|||
package gogoreflection
|
||||
|
||||
import (
|
||||
"testing"
|
||||
|
||||
"google.golang.org/protobuf/runtime/protoimpl"
|
||||
)
|
||||
|
||||
func TestRegistrationFix(t *testing.T) {
|
||||
res := getFileDescriptor("gogoproto/gogo.proto")
|
||||
rawDesc, err := decompress(res)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
fd := protoimpl.DescBuilder{
|
||||
RawDescriptor: rawDesc,
|
||||
}.Build()
|
||||
|
||||
if fd.File.Extensions().Len() == 0 {
|
||||
t.Fatal("unexpected parsing")
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,478 @@
|
|||
/*
|
||||
*
|
||||
* Copyright 2016 gRPC authors.
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
* You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*
|
||||
*/
|
||||
|
||||
/*
|
||||
Package reflection implements server reflection service.
|
||||
|
||||
The service implemented is defined in:
|
||||
https://github.com/grpc/grpc/blob/master/src/proto/grpc/reflection/v1alpha/reflection.proto.
|
||||
|
||||
To register server reflection on a gRPC server:
|
||||
import "google.golang.org/grpc/reflection"
|
||||
|
||||
s := grpc.NewServer()
|
||||
pb.RegisterYourOwnServer(s, &server{})
|
||||
|
||||
// Register reflection service on gRPC server.
|
||||
reflection.Register(s)
|
||||
|
||||
s.Serve(lis)
|
||||
|
||||
*/
|
||||
package gogoreflection // import "google.golang.org/grpc/reflection"
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"compress/gzip"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"log"
|
||||
"reflect"
|
||||
"sort"
|
||||
"sync"
|
||||
|
||||
// nolint: staticcheck
|
||||
"github.com/golang/protobuf/proto"
|
||||
dpb "github.com/golang/protobuf/protoc-gen-go/descriptor"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/codes"
|
||||
rpb "google.golang.org/grpc/reflection/grpc_reflection_v1alpha"
|
||||
"google.golang.org/grpc/status"
|
||||
)
|
||||
|
||||
type serverReflectionServer struct {
|
||||
rpb.UnimplementedServerReflectionServer
|
||||
s *grpc.Server
|
||||
|
||||
initSymbols sync.Once
|
||||
serviceNames []string
|
||||
symbols map[string]*dpb.FileDescriptorProto // map of fully-qualified names to files
|
||||
}
|
||||
|
||||
// Register registers the server reflection service on the given gRPC server.
|
||||
func Register(s *grpc.Server) {
|
||||
rpb.RegisterServerReflectionServer(s, &serverReflectionServer{
|
||||
s: s,
|
||||
})
|
||||
}
|
||||
|
||||
// protoMessage is used for type assertion on proto messages.
|
||||
// Generated proto message implements function Descriptor(), but Descriptor()
|
||||
// is not part of interface proto.Message. This interface is needed to
|
||||
// call Descriptor().
|
||||
type protoMessage interface {
|
||||
Descriptor() ([]byte, []int)
|
||||
}
|
||||
|
||||
func (s *serverReflectionServer) getSymbols() (svcNames []string, symbolIndex map[string]*dpb.FileDescriptorProto) {
|
||||
s.initSymbols.Do(func() {
|
||||
serviceInfo := s.s.GetServiceInfo()
|
||||
|
||||
s.symbols = map[string]*dpb.FileDescriptorProto{}
|
||||
s.serviceNames = make([]string, 0, len(serviceInfo))
|
||||
processed := map[string]struct{}{}
|
||||
for svc, info := range serviceInfo {
|
||||
s.serviceNames = append(s.serviceNames, svc)
|
||||
fdenc, ok := parseMetadata(info.Metadata)
|
||||
if !ok {
|
||||
continue
|
||||
}
|
||||
fd, err := decodeFileDesc(fdenc)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
s.processFile(fd, processed)
|
||||
}
|
||||
sort.Strings(s.serviceNames)
|
||||
})
|
||||
|
||||
return s.serviceNames, s.symbols
|
||||
}
|
||||
|
||||
func (s *serverReflectionServer) processFile(fd *dpb.FileDescriptorProto, processed map[string]struct{}) {
|
||||
filename := fd.GetName()
|
||||
if _, ok := processed[filename]; ok {
|
||||
return
|
||||
}
|
||||
processed[filename] = struct{}{}
|
||||
|
||||
prefix := fd.GetPackage()
|
||||
|
||||
for _, msg := range fd.MessageType {
|
||||
s.processMessage(fd, prefix, msg)
|
||||
}
|
||||
for _, en := range fd.EnumType {
|
||||
s.processEnum(fd, prefix, en)
|
||||
}
|
||||
for _, ext := range fd.Extension {
|
||||
s.processField(fd, prefix, ext)
|
||||
}
|
||||
for _, svc := range fd.Service {
|
||||
svcName := fqn(prefix, svc.GetName())
|
||||
s.symbols[svcName] = fd
|
||||
for _, meth := range svc.Method {
|
||||
name := fqn(svcName, meth.GetName())
|
||||
s.symbols[name] = fd
|
||||
}
|
||||
}
|
||||
|
||||
for _, dep := range fd.Dependency {
|
||||
fdenc := getFileDescriptor(dep)
|
||||
fdDep, err := decodeFileDesc(fdenc)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
s.processFile(fdDep, processed)
|
||||
}
|
||||
}
|
||||
|
||||
func (s *serverReflectionServer) processMessage(fd *dpb.FileDescriptorProto, prefix string, msg *dpb.DescriptorProto) {
|
||||
msgName := fqn(prefix, msg.GetName())
|
||||
s.symbols[msgName] = fd
|
||||
|
||||
for _, nested := range msg.NestedType {
|
||||
s.processMessage(fd, msgName, nested)
|
||||
}
|
||||
for _, en := range msg.EnumType {
|
||||
s.processEnum(fd, msgName, en)
|
||||
}
|
||||
for _, ext := range msg.Extension {
|
||||
s.processField(fd, msgName, ext)
|
||||
}
|
||||
for _, fld := range msg.Field {
|
||||
s.processField(fd, msgName, fld)
|
||||
}
|
||||
for _, oneof := range msg.OneofDecl {
|
||||
oneofName := fqn(msgName, oneof.GetName())
|
||||
s.symbols[oneofName] = fd
|
||||
}
|
||||
}
|
||||
|
||||
func (s *serverReflectionServer) processEnum(fd *dpb.FileDescriptorProto, prefix string, en *dpb.EnumDescriptorProto) {
|
||||
enName := fqn(prefix, en.GetName())
|
||||
s.symbols[enName] = fd
|
||||
|
||||
for _, val := range en.Value {
|
||||
valName := fqn(enName, val.GetName())
|
||||
s.symbols[valName] = fd
|
||||
}
|
||||
}
|
||||
|
||||
func (s *serverReflectionServer) processField(fd *dpb.FileDescriptorProto, prefix string, fld *dpb.FieldDescriptorProto) {
|
||||
fldName := fqn(prefix, fld.GetName())
|
||||
s.symbols[fldName] = fd
|
||||
}
|
||||
|
||||
func fqn(prefix, name string) string {
|
||||
if prefix == "" {
|
||||
return name
|
||||
}
|
||||
return prefix + "." + name
|
||||
}
|
||||
|
||||
// fileDescForType gets the file descriptor for the given type.
|
||||
// The given type should be a proto message.
|
||||
func (s *serverReflectionServer) fileDescForType(st reflect.Type) (*dpb.FileDescriptorProto, error) {
|
||||
m, ok := reflect.Zero(reflect.PtrTo(st)).Interface().(protoMessage)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("failed to create message from type: %v", st)
|
||||
}
|
||||
enc, _ := m.Descriptor()
|
||||
|
||||
return decodeFileDesc(enc)
|
||||
}
|
||||
|
||||
// decodeFileDesc does decompression and unmarshalling on the given
|
||||
// file descriptor byte slice.
|
||||
func decodeFileDesc(enc []byte) (*dpb.FileDescriptorProto, error) {
|
||||
raw, err := decompress(enc)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("failed to decompress enc: %v", err)
|
||||
}
|
||||
|
||||
fd := new(dpb.FileDescriptorProto)
|
||||
if err := proto.Unmarshal(raw, fd); err != nil {
|
||||
return nil, fmt.Errorf("bad descriptor: %v", err)
|
||||
}
|
||||
return fd, nil
|
||||
}
|
||||
|
||||
// decompress does gzip decompression.
|
||||
func decompress(b []byte) ([]byte, error) {
|
||||
r, err := gzip.NewReader(bytes.NewReader(b))
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("bad gzipped descriptor: %v", err)
|
||||
}
|
||||
out, err := ioutil.ReadAll(r)
|
||||
if err != nil {
|
||||
return nil, fmt.Errorf("bad gzipped descriptor: %v", err)
|
||||
}
|
||||
return out, nil
|
||||
}
|
||||
|
||||
func typeForName(name string) (reflect.Type, error) {
|
||||
pt := getMessageType(name)
|
||||
if pt == nil {
|
||||
return nil, fmt.Errorf("unknown type: %q", name)
|
||||
}
|
||||
st := pt.Elem()
|
||||
|
||||
return st, nil
|
||||
}
|
||||
|
||||
func fileDescContainingExtension(st reflect.Type, ext int32) (*dpb.FileDescriptorProto, error) {
|
||||
m, ok := reflect.Zero(reflect.PtrTo(st)).Interface().(proto.Message)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("failed to create message from type: %v", st)
|
||||
}
|
||||
|
||||
extDesc := getExtension(ext, m)
|
||||
|
||||
if extDesc == nil {
|
||||
return nil, fmt.Errorf("failed to find registered extension for extension number %v", ext)
|
||||
}
|
||||
|
||||
return decodeFileDesc(getFileDescriptor(extDesc.Filename))
|
||||
}
|
||||
|
||||
func (s *serverReflectionServer) allExtensionNumbersForType(st reflect.Type) ([]int32, error) {
|
||||
m, ok := reflect.Zero(reflect.PtrTo(st)).Interface().(proto.Message)
|
||||
if !ok {
|
||||
return nil, fmt.Errorf("failed to create message from type: %v", st)
|
||||
}
|
||||
|
||||
out := getExtensionsNumbers(m)
|
||||
return out, nil
|
||||
}
|
||||
|
||||
// fileDescWithDependencies returns a slice of serialized fileDescriptors in
|
||||
// wire format ([]byte). The fileDescriptors will include fd and all the
|
||||
// transitive dependencies of fd with names not in sentFileDescriptors.
|
||||
func fileDescWithDependencies(fd *dpb.FileDescriptorProto, sentFileDescriptors map[string]bool) ([][]byte, error) {
|
||||
r := [][]byte{}
|
||||
queue := []*dpb.FileDescriptorProto{fd}
|
||||
for len(queue) > 0 {
|
||||
currentfd := queue[0]
|
||||
queue = queue[1:]
|
||||
if sent := sentFileDescriptors[currentfd.GetName()]; len(r) == 0 || !sent {
|
||||
sentFileDescriptors[currentfd.GetName()] = true
|
||||
currentfdEncoded, err := proto.Marshal(currentfd)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
r = append(r, currentfdEncoded)
|
||||
}
|
||||
for _, dep := range currentfd.Dependency {
|
||||
fdenc := getFileDescriptor(dep)
|
||||
fdDep, err := decodeFileDesc(fdenc)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
queue = append(queue, fdDep)
|
||||
}
|
||||
}
|
||||
return r, nil
|
||||
}
|
||||
|
||||
// fileDescEncodingByFilename finds the file descriptor for given filename,
|
||||
// finds all of its previously unsent transitive dependencies, does marshalling
|
||||
// on them, and returns the marshalled result.
|
||||
func (s *serverReflectionServer) fileDescEncodingByFilename(name string, sentFileDescriptors map[string]bool) ([][]byte, error) {
|
||||
enc := getFileDescriptor(name)
|
||||
if enc == nil {
|
||||
return nil, fmt.Errorf("unknown file: %v", name)
|
||||
}
|
||||
fd, err := decodeFileDesc(enc)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return fileDescWithDependencies(fd, sentFileDescriptors)
|
||||
}
|
||||
|
||||
// parseMetadata finds the file descriptor bytes specified meta.
|
||||
// For SupportPackageIsVersion4, m is the name of the proto file, we
|
||||
// call proto.FileDescriptor to get the byte slice.
|
||||
// For SupportPackageIsVersion3, m is a byte slice itself.
|
||||
func parseMetadata(meta interface{}) ([]byte, bool) {
|
||||
// Check if meta is the file name.
|
||||
if fileNameForMeta, ok := meta.(string); ok {
|
||||
return getFileDescriptor(fileNameForMeta), true
|
||||
}
|
||||
|
||||
// Check if meta is the byte slice.
|
||||
if enc, ok := meta.([]byte); ok {
|
||||
return enc, true
|
||||
}
|
||||
|
||||
return nil, false
|
||||
}
|
||||
|
||||
// fileDescEncodingContainingSymbol finds the file descriptor containing the
|
||||
// given symbol, finds all of its previously unsent transitive dependencies,
|
||||
// does marshalling on them, and returns the marshalled result. The given symbol
|
||||
// can be a type, a service or a method.
|
||||
func (s *serverReflectionServer) fileDescEncodingContainingSymbol(name string, sentFileDescriptors map[string]bool) ([][]byte, error) {
|
||||
_, symbols := s.getSymbols()
|
||||
fd := symbols[name]
|
||||
if fd == nil {
|
||||
// Check if it's a type name that was not present in the
|
||||
// transitive dependencies of the registered services.
|
||||
if st, err := typeForName(name); err == nil {
|
||||
fd, err = s.fileDescForType(st)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if fd == nil {
|
||||
return nil, fmt.Errorf("unknown symbol: %v", name)
|
||||
}
|
||||
|
||||
return fileDescWithDependencies(fd, sentFileDescriptors)
|
||||
}
|
||||
|
||||
// fileDescEncodingContainingExtension finds the file descriptor containing
|
||||
// given extension, finds all of its previously unsent transitive dependencies,
|
||||
// does marshalling on them, and returns the marshalled result.
|
||||
func (s *serverReflectionServer) fileDescEncodingContainingExtension(typeName string, extNum int32, sentFileDescriptors map[string]bool) ([][]byte, error) {
|
||||
st, err := typeForName(typeName)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
fd, err := fileDescContainingExtension(st, extNum)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return fileDescWithDependencies(fd, sentFileDescriptors)
|
||||
}
|
||||
|
||||
// allExtensionNumbersForTypeName returns all extension numbers for the given type.
|
||||
func (s *serverReflectionServer) allExtensionNumbersForTypeName(name string) ([]int32, error) {
|
||||
st, err := typeForName(name)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
extNums, err := s.allExtensionNumbersForType(st)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return extNums, nil
|
||||
}
|
||||
|
||||
// ServerReflectionInfo is the reflection service handler.
|
||||
func (s *serverReflectionServer) ServerReflectionInfo(stream rpb.ServerReflection_ServerReflectionInfoServer) error {
|
||||
sentFileDescriptors := make(map[string]bool)
|
||||
for {
|
||||
in, err := stream.Recv()
|
||||
if err == io.EOF {
|
||||
return nil
|
||||
}
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
out := &rpb.ServerReflectionResponse{
|
||||
ValidHost: in.Host,
|
||||
OriginalRequest: in,
|
||||
}
|
||||
switch req := in.MessageRequest.(type) {
|
||||
case *rpb.ServerReflectionRequest_FileByFilename:
|
||||
b, err := s.fileDescEncodingByFilename(req.FileByFilename, sentFileDescriptors)
|
||||
if err != nil {
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_ErrorResponse{
|
||||
ErrorResponse: &rpb.ErrorResponse{
|
||||
ErrorCode: int32(codes.NotFound),
|
||||
ErrorMessage: err.Error(),
|
||||
},
|
||||
}
|
||||
} else {
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_FileDescriptorResponse{
|
||||
FileDescriptorResponse: &rpb.FileDescriptorResponse{FileDescriptorProto: b},
|
||||
}
|
||||
}
|
||||
case *rpb.ServerReflectionRequest_FileContainingSymbol:
|
||||
b, err := s.fileDescEncodingContainingSymbol(req.FileContainingSymbol, sentFileDescriptors)
|
||||
if err != nil {
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_ErrorResponse{
|
||||
ErrorResponse: &rpb.ErrorResponse{
|
||||
ErrorCode: int32(codes.NotFound),
|
||||
ErrorMessage: err.Error(),
|
||||
},
|
||||
}
|
||||
} else {
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_FileDescriptorResponse{
|
||||
FileDescriptorResponse: &rpb.FileDescriptorResponse{FileDescriptorProto: b},
|
||||
}
|
||||
}
|
||||
case *rpb.ServerReflectionRequest_FileContainingExtension:
|
||||
typeName := req.FileContainingExtension.ContainingType
|
||||
extNum := req.FileContainingExtension.ExtensionNumber
|
||||
b, err := s.fileDescEncodingContainingExtension(typeName, extNum, sentFileDescriptors)
|
||||
if err != nil {
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_ErrorResponse{
|
||||
ErrorResponse: &rpb.ErrorResponse{
|
||||
ErrorCode: int32(codes.NotFound),
|
||||
ErrorMessage: err.Error(),
|
||||
},
|
||||
}
|
||||
} else {
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_FileDescriptorResponse{
|
||||
FileDescriptorResponse: &rpb.FileDescriptorResponse{FileDescriptorProto: b},
|
||||
}
|
||||
}
|
||||
case *rpb.ServerReflectionRequest_AllExtensionNumbersOfType:
|
||||
extNums, err := s.allExtensionNumbersForTypeName(req.AllExtensionNumbersOfType)
|
||||
if err != nil {
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_ErrorResponse{
|
||||
ErrorResponse: &rpb.ErrorResponse{
|
||||
ErrorCode: int32(codes.NotFound),
|
||||
ErrorMessage: err.Error(),
|
||||
},
|
||||
}
|
||||
log.Printf("OH NO: %s", err)
|
||||
} else {
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_AllExtensionNumbersResponse{
|
||||
AllExtensionNumbersResponse: &rpb.ExtensionNumberResponse{
|
||||
BaseTypeName: req.AllExtensionNumbersOfType,
|
||||
ExtensionNumber: extNums,
|
||||
},
|
||||
}
|
||||
}
|
||||
case *rpb.ServerReflectionRequest_ListServices:
|
||||
svcNames, _ := s.getSymbols()
|
||||
serviceResponses := make([]*rpb.ServiceResponse, len(svcNames))
|
||||
for i, n := range svcNames {
|
||||
serviceResponses[i] = &rpb.ServiceResponse{
|
||||
Name: n,
|
||||
}
|
||||
}
|
||||
out.MessageResponse = &rpb.ServerReflectionResponse_ListServicesResponse{
|
||||
ListServicesResponse: &rpb.ListServiceResponse{
|
||||
Service: serviceResponses,
|
||||
},
|
||||
}
|
||||
default:
|
||||
return status.Errorf(codes.InvalidArgument, "invalid MessageRequest: %v", in.MessageRequest)
|
||||
}
|
||||
if err := stream.Send(out); err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
@ -6,9 +6,9 @@ import (
|
|||
"time"
|
||||
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/reflection"
|
||||
|
||||
"github.com/cosmos/cosmos-sdk/client"
|
||||
"github.com/cosmos/cosmos-sdk/server/grpc/gogoreflection"
|
||||
"github.com/cosmos/cosmos-sdk/server/types"
|
||||
)
|
||||
|
||||
|
|
@ -19,7 +19,7 @@ func StartGRPCServer(clientCtx client.Context, app types.Application, address st
|
|||
|
||||
// Reflection allows external clients to see what services and methods
|
||||
// the gRPC server exposes.
|
||||
reflection.Register(grpcSrv)
|
||||
gogoreflection.Register(grpcSrv)
|
||||
|
||||
listener, err := net.Listen("tcp", address)
|
||||
if err != nil {
|
||||
|
|
|
|||
|
|
@ -6,6 +6,9 @@ import (
|
|||
"context"
|
||||
"fmt"
|
||||
"testing"
|
||||
"time"
|
||||
|
||||
"github.com/jhump/protoreflect/grpcreflect"
|
||||
|
||||
"github.com/stretchr/testify/require"
|
||||
"github.com/stretchr/testify/suite"
|
||||
|
|
@ -96,21 +99,25 @@ func (s *IntegrationTestSuite) TestGRPCServer_BankBalance() {
|
|||
|
||||
func (s *IntegrationTestSuite) TestGRPCServer_Reflection() {
|
||||
// Test server reflection
|
||||
reflectClient := rpb.NewServerReflectionClient(s.conn)
|
||||
stream, err := reflectClient.ServerReflectionInfo(context.Background(), grpc.WaitForReady(true))
|
||||
ctx, cancel := context.WithTimeout(context.Background(), 15*time.Second)
|
||||
defer cancel()
|
||||
stub := rpb.NewServerReflectionClient(s.conn)
|
||||
// NOTE(fdymylja): we use grpcreflect because it solves imports too
|
||||
// so that we can always assert that given a reflection server it is
|
||||
// possible to fully query all the methods, without having any context
|
||||
// on the proto registry
|
||||
rc := grpcreflect.NewClient(ctx, stub)
|
||||
|
||||
services, err := rc.ListServices()
|
||||
s.Require().NoError(err)
|
||||
s.Require().NoError(stream.Send(&rpb.ServerReflectionRequest{
|
||||
MessageRequest: &rpb.ServerReflectionRequest_ListServices{},
|
||||
}))
|
||||
res, err := stream.Recv()
|
||||
s.Require().NoError(err)
|
||||
services := res.GetListServicesResponse().Service
|
||||
servicesMap := make(map[string]bool)
|
||||
for _, s := range services {
|
||||
servicesMap[s.Name] = true
|
||||
s.Require().Greater(len(services), 0)
|
||||
|
||||
for _, svc := range services {
|
||||
file, err := rc.FileContainingSymbol(svc)
|
||||
s.Require().NoError(err)
|
||||
sd := file.FindSymbol(svc)
|
||||
s.Require().NotNil(sd)
|
||||
}
|
||||
// Make sure the following services are present
|
||||
s.Require().True(servicesMap["cosmos.bank.v1beta1.Query"])
|
||||
}
|
||||
|
||||
func (s *IntegrationTestSuite) TestGRPCServer_GetTxsEvent() {
|
||||
|
|
|
|||
Loading…
Reference in New Issue