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73 Commits
1.0.7 ... main

Author SHA1 Message Date
srv.es.as.platform 2fa4dda2c3
Update dependencies 2024-06-13 20:55:45 +02:00
Daniel Carrillo 4492f77d87
Remove docker compose from integration tests because of the testcontainers dependency nightmare (#34)
* Remove docker compose from integration tests because of the testcontainers dependency nightmare
2024-06-01 19:12:14 +02:00
Daniel Carrillo aaf8a3b163
Revert update dependencies because of testcontainers 2024-05-25 16:14:46 +02:00
Daniel Carrillo c37642c6c1
Revert "Update dependencies"
This reverts commit f3a6f27e99.
2024-05-25 16:10:48 +02:00
Daniel Carrillo f3a6f27e99
Update dependencies 2024-05-25 16:07:52 +02:00
Daniel Carrillo f167424e4f
chore: Add concurrency to workflow 2024-05-12 19:26:00 +02:00
Daniel Carrillo 789cc6939e
Return 404 when the dns domain has any path different than / 2024-05-12 19:24:10 +02:00
Daniel Carrillo b57beded8f
chore: Fix typo 2024-05-09 20:01:40 +02:00
Daniel Carrillo d29e238beb
chore: Split unit/integration tests in CI workflow 2024-05-09 19:48:06 +02:00
Daniel Carrillo 5d3dcb4b8e
Bump gin-gonic to v1.10.0 2024-05-09 19:40:14 +02:00
Daniel Carrillo 71a0f37abb
Update LICENSE date 2024-05-02 13:32:03 +02:00
Daniel Carrillo c8d6da5ebd
Update README.md 2024-04-12 19:58:14 +02:00
dependabot[bot] 7caf4ad4a8
Bump github.com/docker/docker (#30)
Bumps [github.com/docker/docker](https://github.com/docker/docker) from 25.0.3+incompatible to 25.0.5+incompatible.
- [Release notes](https://github.com/docker/docker/releases)
- [Commits](https://github.com/docker/docker/compare/v25.0.3...v25.0.5)

---
updated-dependencies:
- dependency-name: github.com/docker/docker
  dependency-type: indirect
...

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2024-04-12 19:32:09 +02:00
Daniel Carrillo d13ea29071
New whatismydns feature (#29) 2024-04-12 19:26:48 +02:00
dependabot[bot] b11f15ecfe
Bump github.com/quic-go/quic-go from 0.40.1 to 0.42.0 (#28)
Bumps [github.com/quic-go/quic-go](https://github.com/quic-go/quic-go) from 0.40.1 to 0.42.0.
- [Release notes](https://github.com/quic-go/quic-go/releases)
- [Changelog](https://github.com/quic-go/quic-go/blob/master/Changelog.md)
- [Commits](https://github.com/quic-go/quic-go/compare/v0.40.1...v0.42.0)

---
updated-dependencies:
- dependency-name: github.com/quic-go/quic-go
  dependency-type: direct:production
...

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2024-04-02 17:40:05 +02:00
Daniel Carrillo 454f65f087
Move models initial setup to server handler (not ideal) 2024-03-23 20:24:19 +01:00
Daniel Carrillo 1988241b98
chore: Bump workflows dependencies 2024-03-23 18:05:13 +01:00
Daniel Carrillo 901345a337
[chore] Update workflows dependecies 2024-03-23 17:47:39 +01:00
Daniel Carrillo 0c14419e7e
Server handling refactor (#27) 2024-03-23 17:41:34 +01:00
dependabot[bot] db111642d2
Bump github.com/docker/docker (#26)
Bumps [github.com/docker/docker](https://github.com/docker/docker) from 24.0.7+incompatible to 24.0.9+incompatible.
- [Release notes](https://github.com/docker/docker/releases)
- [Commits](https://github.com/docker/docker/compare/v24.0.7...v24.0.9)

---
updated-dependencies:
- dependency-name: github.com/docker/docker
  dependency-type: indirect
...

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2024-03-20 19:49:19 +01:00
dependabot[bot] d5b1373e17
Bump google.golang.org/protobuf from 1.32.0 to 1.33.0 (#25)
Bumps google.golang.org/protobuf from 1.32.0 to 1.33.0.

---
updated-dependencies:
- dependency-name: google.golang.org/protobuf
  dependency-type: indirect
...

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2024-03-14 15:40:42 +01:00
dependabot[bot] ba8a2ec494
Bump github.com/opencontainers/runc from 1.1.9 to 1.1.12 (#24)
Bumps [github.com/opencontainers/runc](https://github.com/opencontainers/runc) from 1.1.9 to 1.1.12.
- [Release notes](https://github.com/opencontainers/runc/releases)
- [Changelog](https://github.com/opencontainers/runc/blob/v1.1.12/CHANGELOG.md)
- [Commits](https://github.com/opencontainers/runc/compare/v1.1.9...v1.1.12)

---
updated-dependencies:
- dependency-name: github.com/opencontainers/runc
  dependency-type: indirect
...

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2024-02-01 17:27:37 +01:00
Daniel Carrillo f8e27bef56
Add endopoint to check is a given port is open on the client (#22) 2023-12-31 12:52:08 +01:00
dependabot[bot] 2bbeeb34c5
Bump github.com/containerd/containerd from 1.7.7 to 1.7.11 (#20)
Bumps [github.com/containerd/containerd](https://github.com/containerd/containerd) from 1.7.7 to 1.7.11.
- [Release notes](https://github.com/containerd/containerd/releases)
- [Changelog](https://github.com/containerd/containerd/blob/main/RELEASES.md)
- [Commits](https://github.com/containerd/containerd/compare/v1.7.7...v1.7.11)

---
updated-dependencies:
- dependency-name: github.com/containerd/containerd
  dependency-type: indirect
...

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2023-12-20 20:08:35 +01:00
dependabot[bot] 0090b794ee
Bump golang.org/x/crypto from 0.14.0 to 0.17.0 (#19)
Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.14.0 to 0.17.0.
- [Commits](https://github.com/golang/crypto/compare/v0.14.0...v0.17.0)

---
updated-dependencies:
- dependency-name: golang.org/x/crypto
  dependency-type: indirect
...

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2023-12-19 09:10:37 +01:00
dependabot[bot] 93f561d6ef
Bump github.com/docker/docker from 20.10.24+incompatible to 24.0.7+incompatible (#18)
* Bump github.com/docker/docker

Bumps [github.com/docker/docker](https://github.com/docker/docker) from 20.10.24+incompatible to 24.0.7+incompatible.
- [Release notes](https://github.com/docker/docker/releases)
- [Commits](https://github.com/docker/docker/compare/v20.10.24...v24.0.7)

---
updated-dependencies:
- dependency-name: github.com/docker/docker
  dependency-type: indirect
...

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* Update dependencies

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Daniel Carrillo <daniel.carrillo@gmail.com>
2023-10-30 19:17:40 +01:00
dependabot[bot] 9da6d2fec5
Bump google.golang.org/grpc from 1.53.0 to 1.56.3 (#17)
Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.53.0 to 1.56.3.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.53.0...v1.56.3)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: indirect
...

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2023-10-26 09:25:00 +02:00
Daniel Carrillo 8e3d731719
[ci] Remove unused lines from codeql-analysis.yml 2023-10-12 12:52:44 +02:00
Daniel Carrillo d5b244dc5f
Bump go version to 1.21.3 (it fix HTTP/2 Stream Resets issue) 2023-10-12 12:14:49 +02:00
Daniel Carrillo d767afd658
Update dependencies 2023-10-11 19:39:33 +02:00
Daniel Carrillo f4fd79737e
Bump golang version to 1.21 2023-08-25 18:34:21 +02:00
Daniel Carrillo 2ab6b29ed5
Update dependencies 2023-08-12 18:38:01 +02:00
Daniel Carrillo 55e6cd4816
Update test to latest quic version 2023-07-22 13:20:17 +02:00
Daniel Carrillo a490d5f10e
Update dependencies 2023-07-22 13:14:33 +02:00
dependabot[bot] 994a12da5a
Bump google.golang.org/grpc from 1.48.0 to 1.53.0 (#15)
Bumps [google.golang.org/grpc](https://github.com/grpc/grpc-go) from 1.48.0 to 1.53.0.
- [Release notes](https://github.com/grpc/grpc-go/releases)
- [Commits](https://github.com/grpc/grpc-go/compare/v1.48.0...v1.53.0)

---
updated-dependencies:
- dependency-name: google.golang.org/grpc
  dependency-type: indirect
...

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2023-07-06 08:07:54 +02:00
Daniel Carrillo 91deff4a14
chore: bump Go action to v4 (#13) 2023-06-02 17:23:48 +02:00
dependabot[bot] 81c3a4fbb0
Bump github.com/gin-gonic/gin from 1.9.0 to 1.9.1 (#14)
Bumps [github.com/gin-gonic/gin](https://github.com/gin-gonic/gin) from 1.9.0 to 1.9.1.
- [Release notes](https://github.com/gin-gonic/gin/releases)
- [Changelog](https://github.com/gin-gonic/gin/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gin-gonic/gin/compare/v1.9.0...v1.9.1)

---
updated-dependencies:
- dependency-name: github.com/gin-gonic/gin
  dependency-type: direct:production
...

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2023-06-02 17:13:53 +02:00
dependabot[bot] 5b85eef7eb
Bump github.com/docker/distribution (#12)
Bumps [github.com/docker/distribution](https://github.com/docker/distribution) from 2.8.1+incompatible to 2.8.2+incompatible.
- [Release notes](https://github.com/docker/distribution/releases)
- [Commits](https://github.com/docker/distribution/compare/v2.8.1...v2.8.2)

---
updated-dependencies:
- dependency-name: github.com/docker/distribution
  dependency-type: indirect
...

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2023-05-12 17:00:06 +02:00
Daniel Carrillo c54cf5a456
Add upx compression to Dockerfile 2023-04-29 18:49:21 +02:00
Daniel Carrillo 7dfa0a2e6d
Update dependencies 2023-04-27 18:21:27 +02:00
dependabot[bot] 68ef680439
Bump github.com/docker/docker (#11)
Bumps [github.com/docker/docker](https://github.com/docker/docker) from 20.10.17+incompatible to 20.10.24+incompatible.
- [Release notes](https://github.com/docker/docker/releases)
- [Commits](https://github.com/docker/docker/compare/v20.10.17...v20.10.24)

---
updated-dependencies:
- dependency-name: github.com/docker/docker
  dependency-type: indirect
...

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2023-04-05 19:50:22 +02:00
dependabot[bot] bd42f712ea
Bump github.com/opencontainers/runc from 1.1.3 to 1.1.5 (#10)
Bumps [github.com/opencontainers/runc](https://github.com/opencontainers/runc) from 1.1.3 to 1.1.5.
- [Release notes](https://github.com/opencontainers/runc/releases)
- [Changelog](https://github.com/opencontainers/runc/blob/v1.1.5/CHANGELOG.md)
- [Commits](https://github.com/opencontainers/runc/compare/v1.1.3...v1.1.5)

---
updated-dependencies:
- dependency-name: github.com/opencontainers/runc
  dependency-type: indirect
...

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2023-03-29 18:23:38 +02:00
Daniel Carrillo 0b31633309
Remove useless function 2023-03-21 20:19:11 +01:00
Daniel Carrillo b5fa3be506
Move logs about stopping servers to the proper place 2023-03-20 19:27:17 +01:00
Daniel Carrillo 8783db018b
Use pointers to proper server initializing handling 2023-03-20 17:43:06 +01:00
Daniel Carrillo e60d1ae5b7
Initial server handling refactor (#9) 2023-03-20 16:36:55 +01:00
Daniel Carrillo 84a767ade0
chore: Fix README.md typos 2023-03-18 21:14:08 +01:00
Daniel Carrillo 19c72f94a5
Add experimental support for HTTP/3 (#8)
* Wait for service in integration tests instead of watching for a string

* Add http3 experimental support
2023-03-18 21:06:51 +01:00
Daniel Carrillo de78dcdf52
Bump dependencies due to minor security issues 2023-03-16 19:59:39 +01:00
Daniel Carrillo eb200ddd81
Fix minor linting issues 2023-03-16 19:59:04 +01:00
Daniel Carrillo 5c4ac4a3ee
[skip ci] bump action-gh-release to v1 2023-03-10 20:03:32 +01:00
Daniel Carrillo ee328892d6
Bump gin to v1.9.0 2023-03-10 19:30:03 +01:00
Daniel Carrillo 04d983d671
Remove redundant ifs 2023-03-10 19:27:10 +01:00
Daniel Carrillo 202518d547
Merge branch 'main' of github.com:dcarrillo/whatismyip 2023-02-16 19:27:07 +01:00
Daniel Carrillo 52d14fe78f
Update dependencies 2023-02-16 19:26:53 +01:00
Daniel Carrillo 8aadc4fbb6
Bump golang to 1.20 2023-02-16 19:24:16 +01:00
dependabot[bot] b6391d8fd1
Bump github.com/containerd/containerd from 1.6.12 to 1.6.18 (#6)
Bumps [github.com/containerd/containerd](https://github.com/containerd/containerd) from 1.6.12 to 1.6.18.
2023-02-16 19:21:04 +01:00
Daniel Carrillo 35fac1bd57
chore: update linters and go action 2023-01-26 20:47:03 +01:00
Daniel Carrillo b13a30c354
chore: disable go cache 2023-01-26 20:43:13 +01:00
Daniel Carrillo 5982683cdd
chore: use cache in CI and bump checkout action to v3 2023-01-26 20:38:31 +01:00
Daniel Carrillo 1a986a029f
Update gin to v1.8.2 (GO-2022-1144) and containerd (CVE-2022-27664) 2022-12-26 19:30:02 +01:00
Daniel Carrillo ed0ddccab5
Update golang.org/x/net (CVE-2022-32149) 2022-11-05 13:37:05 +01:00
Daniel Carrillo 20ae50c115
Update golang.org/x/net (CVE-2022-27664) 2022-09-13 20:38:24 +02:00
Daniel Carrillo 9763ed0e29
Update to golang 1.19 2022-08-11 20:02:27 +02:00
Daniel Carrillo 88691a5149
Update README.md
Add CodeQL badge
2022-07-03 11:57:58 +02:00
Daniel Carrillo 6b7fc0bc6a
Bump gin and testify to latest versions 2022-07-03 11:39:51 +02:00
Daniel Carrillo c5a659ff64
Create codeql-analysis.yml 2022-07-03 11:29:23 +02:00
Daniel Carrillo bd06da7b2b
Bump gin-gonic to 1.8.0 2022-06-03 18:37:22 +02:00
Daniel Carrillo b61d64a755
Moving secure again, this time to github.com/gin-contrib/secure 2022-05-07 15:56:21 +02:00
Daniel Carrillo 3df794ecc4
Bump testcontainers-go tp 0.13.0 2022-05-07 13:06:19 +02:00
Daniel Carrillo ca1d002974
Use gin-gonic/contrib/secure instead of deprecated module 2022-05-07 12:51:13 +02:00
Daniel Carrillo 1ee7256506
Remove headers set by a trusted proxy from outputs 2022-05-02 18:07:40 +02:00
Daniel Carrillo 7c70abf07f
Add feature to get the right client port when using a trusted proxy 2022-05-02 17:56:57 +02:00
36 changed files with 1868 additions and 1449 deletions

52
.github/workflows/codeql-analysis.yml vendored Normal file
View File

@ -0,0 +1,52 @@
# For most projects, this workflow file will not need changing; you simply need
# to commit it to your repository.
#
# You may wish to alter this file to override the set of languages analyzed,
# or to provide custom queries or build logic.
#
# ******** NOTE ********
# We have attempted to detect the languages in your repository. Please check
# the `language` matrix defined below to confirm you have the correct set of
# supported CodeQL languages.
#
name: "CodeQL"
on:
push:
branches: [ "main" ]
pull_request:
# The branches below must be a subset of the branches above
branches: [ "main" ]
schedule:
- cron: '21 21 * * 0'
jobs:
analyze:
name: Analyze
runs-on: ubuntu-latest
permissions:
actions: read
contents: read
security-events: write
steps:
- name: Checkout repository
uses: actions/checkout@v4
- name: install go
uses: actions/setup-go@v5
with:
go-version-file: go.mod
cache: true
- name: Initialize CodeQL
uses: github/codeql-action/init@v3
with:
languages: go
- run: |
echo "Build"
make build
- name: Perform CodeQL Analysis
uses: github/codeql-action/analyze@v3

View File

@ -8,22 +8,24 @@ on:
- '*'
pull_request:
concurrency: ${{ github.ref_name }}
jobs:
tests:
runs-on: ubuntu-latest
strategy:
matrix:
make: ["lint", "unit-test", "integration-test"]
steps:
- uses: actions/checkout@v2.4.0
- uses: actions/checkout@v4
- name: install go
uses: actions/setup-go@v2
uses: actions/setup-go@v5
with:
go-version: "^1.18"
go-version-file: go.mod
- name: Lint
run: make lint
- name: Tests
run: make test
- name: ${{ matrix.make }}
run: make ${{ matrix.make }}
deploy:
runs-on: ubuntu-latest
@ -33,9 +35,14 @@ jobs:
matrix:
goosarch: [linux-amd64]
steps:
- uses: actions/checkout@v2.4.0
- uses: actions/checkout@v4
with:
fetch-depth: 0
- name: install go
uses: actions/setup-go@v5
with:
go-version-file: go.mod
cache: true
- name: Set env
run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
@ -56,7 +63,7 @@ jobs:
sha256sum whatismyip-$RELEASE_VERSION-${{matrix.goosarch}}.tar.gz > whatismyip-$RELEASE_VERSION-${{matrix.goosarch}}.tar.gz.sha256
- name: Release
uses: softprops/action-gh-release@v0.1.14
uses: softprops/action-gh-release@v2
with:
body_path: changelog.txt
files: |

1
.gitignore vendored Normal file
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@ -0,0 +1 @@
whatismyip

49
.golangci.yaml Normal file
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@ -0,0 +1,49 @@
---
run:
timeout: 10m
issues:
max-same-issues: 0
linters:
disable-all: true
enable:
- goimports
- ineffassign
- nakedret
- revive
- staticcheck
- stylecheck
- unconvert
- unparam
- unused
linters-settings:
staticcheck:
checks:
- all
revive:
ignore-generated-header: true
severity: warning
confidence: 0.8
rules:
- name: blank-imports
- name: context-as-argument
- name: context-keys-type
- name: dot-imports
- name: error-return
- name: error-strings
- name: error-naming
- name: exported
- name: increment-decrement
- name: var-naming
- name: var-declaration
- name: package-comments
- name: range
- name: receiver-naming
- name: time-naming
- name: unexported-return
- name: indent-error-flow
- name: errorf
- name: empty-block
- name: superfluous-else
- name: unused-parameter
- name: unreachable-code
- name: redefines-builtin-id

View File

@ -1,21 +1,28 @@
FROM golang:1.18-alpine as builder
FROM golang:1.22-alpine as builder
ARG ARG_VERSION
ENV VERSION $ARG_VERSION
WORKDIR /app
COPY go.mod .
COPY go.sum .
RUN --mount=type=cache,target=/go/pkg/mod/ go mod download -x
COPY . .
RUN apk add make git && make build VERSION=$VERSION
FROM builder AS build-dev-app
# hadolint ignore=DL3018
RUN --mount=type=cache,target=/go/pkg/mod/ apk --no-cache add make && make build
# Build final image
FROM scratch
WORKDIR /app
COPY --from=builder /app/whatismyip /usr/bin/
EXPOSE 8080
FROM builder AS build-prod-app
# hadolint ignore=DL3018
RUN --mount=type=cache,target=/go/pkg/mod/ apk --no-cache add make upx \
&& make build \
&& upx --best --lzma whatismyip
FROM scratch AS dev
COPY --from=build-dev-app /app/whatismyip /usr/bin/
ENTRYPOINT ["whatismyip"]
FROM scratch AS prod
COPY --from=build-prod-app /app/whatismyip /usr/bin/
ENTRYPOINT ["whatismyip"]

View File

@ -176,7 +176,7 @@
END OF TERMS AND CONDITIONS
Copyright 2021 Daniel Carrillo
Copyright 2024 Daniel Carrillo
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.

View File

@ -5,44 +5,40 @@ DOCKER_URL ?= dcarrillo/whatismyip
.PHONY: test
test: unit-test integration-test
.PHONY: unit-test
unit-test:
go test -race -short -cover ./...
go test -count=1 -race -short -cover ./...
.PHONY: integration-test
integration-test:
go test ./integration-tests -v
go test -count=1 -v ./integration-tests
.PHONY: install-tools
install-tools:
@command golangci-lint > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin v1.45.0; \
curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(GOPATH)/bin; \
fi
@command $(GOPATH)/revive > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
go get -u github.com/mgechev/revive; \
fi
@command $(GOPATH)/shadow > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
go install golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow@v0.1.10; \
go install golang.org/x/tools/go/analysis/passes/shadow/cmd/shadow@latest; \
fi
@command $(GOPATH)/golines > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
go install github.com/segmentio/golines@latest; \
fi
.PHONY: lint
lint: install-tools
gofmt -l . && test -z $$(gofmt -l .)
golines -l . && test -z $$(golines -l .)
golangci-lint run
shadow ./...
.PHONY: build
build:
CGO_ENABLED=0 go build -ldflags="-s -w -X 'github.com/dcarrillo/whatismyip/internal/core.Version=${VERSION}'" -o whatismyip ./cmd
.PHONY: docker-build
docker-build:
docker build --build-arg=ARG_VERSION="${VERSION}" --tag ${DOCKER_URL}:${VERSION} .
docker-build-dev:
docker build --target=dev --build-arg=ARG_VERSION="${VERSION}" --tag ${DOCKER_URL}:${VERSION} .
.PHONY: docker-push
docker-push: docker-build
docker-build-prod:
docker build --target=prod --build-arg=ARG_VERSION="${VERSION}" --tag ${DOCKER_URL}:${VERSION} .
docker-push: docker-build-prod
ifneq (,$(findstring devel-,$(VERSION)))
@echo "VERSION is set to ${VERSION}, I can't push devel builds"
exit 1
@ -52,8 +48,7 @@ else
docker push ${DOCKER_URL}:latest
endif
.PHONY: docker-run
docker-run: docker-build
docker-run: docker-build-dev
docker run --tty --interactive --rm \
-v ${PWD}/test/GeoIP2-City-Test.mmdb:/tmp/GeoIP2-City-Test.mmdb:ro \
-v ${PWD}/test/GeoLite2-ASN-Test.mmdb:/tmp/GeoLite2-ASN-Test.mmdb:ro -p 8080:8080 \

View File

@ -1,6 +1,7 @@
# What is my IP address
[![CI](https://github.com/dcarrillo/whatismyip/workflows/CI/badge.svg)](https://github.com/dcarrillo/whatismyip/actions)
[![CodeQL](https://github.com/dcarrillo/whatismyip/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/dcarrillo/whatismyip/actions/workflows/codeql-analysis.yml)
[![Go Report Card](https://goreportcard.com/badge/github.com/dcarrillo/whatismyip)](https://goreportcard.com/report/github.com/dcarrillo/whatismyip)
[![GitHub release](https://img.shields.io/github/release/dcarrillo/whatismyip.svg)](https://github.com/dcarrillo/whatismyip/releases/)
[![License Apache 2.0](https://img.shields.io/badge/license-Apache%202.0-blue.svg)](./LICENSE)
@ -8,20 +9,26 @@
- [What is my IP address](#what-is-my-ip-address)
- [Features](#features)
- [Endpoints](#endpoints)
- [DNS discovery](#dns-discovery)
- [Build](#build)
- [Usage](#usage)
- [Examples](#examples)
- [Run a default TCP server](#run-a-default-tcp-server)
- [Run a TLS (HTTP/2) server only](#run-a-tls-http2-server-only)
- [Run a default TCP server with a custom template and trust a custom header set by an upstream proxy](#run-a-default-tcp-server-with-a-custom-template-and-trust-a-custom-header-set-by-an-upstream-proxy)
- [Run a TLS (HTTP/2) and enable What is my DNS](#run-a-tls-http2-and-enable-what-is-my-dns)
- [Run an HTTP/3 server](#run-an-http3-server)
- [Run a default TCP server with a custom template and trust a pair of custom headers set by an upstream proxy](#run-a-default-tcp-server-with-a-custom-template-and-trust-a-pair-of-custom-headers-set-by-an-upstream-proxy)
- [Download](#download)
- [Docker](#docker)
- [Run a container locally using test databases](#run-a-container-locally-using-test-databases)
- [From Docker Hub](#from-docker-hub)
Just another "what is my IP address" service, including geolocation and headers information, written in go with high performance in mind, it uses [gin](https://github.com/gin-gonic/gin) which uses [httprouter](https://github.com/julienschmidt/httprouter) a lightweight high performance HTTP multiplexer.
> [!NOTE]
> Since version 2.3.0, the application includes an optional client [DNS discovery](#dns-discovery)
Take a look at [ifconfig.es](https://ifconfig.es) a live site using `whatismyip`
Just another "what is my IP address" service, including geolocation, TCP open port checking, and headers information. Written in go with high performance in mind,
it uses [gin](https://github.com/gin-gonic/gin) which uses [httprouter](https://github.com/julienschmidt/httprouter) a lightweight high performance HTTP multiplexer.
Take a look at [ifconfig.es](https://ifconfig.es) a live site using `whatismyip` and the `DNS discovery` enabled.
Get your public IP easily from the command line:
@ -33,20 +40,31 @@ curl -6 ifconfig.es
::1
```
Get the IP of your DNS provider:
```bash
curl -L dns.ifconfig.es
2a04:e4c0:47::67 (Spain / OPENDNS)
```
## Features
- TLS and HTTP/2.
- Can run behind a proxy by trusting a custom header (usually `X-Real-IP`) to figure out the source IP address.
- Experimental HTTP/3 support. HTTP/3 requires a TLS server running (`-tls-bind`), as HTTP/3 starts as a TLS connection that then gets upgraded to UDP. The UDP port is the same as the one used for the TLS server.
- Beta DNS discovery: A best-effort approach to discovering the DNS server that is resolving the client's requests.
- Can run behind a proxy by trusting a custom header (usually `X-Real-IP`) to figure out the source IP address. It also supports a custom header to resolve the client port, if the proxy can only add a header for the IP (for example a fixed header from CDNs) the client port is shown as unknown.
- IPv4 and IPv6.
- Geolocation info including ASN. This feature is possible thanks to [maxmind](https://dev.maxmind.com/geoip/geolite2-free-geolocation-data?lang=en) GeoLite2 databases. In order to use these databases, a license key is needed. Please visit Maxmind site for further instructions and get a free license.
- Checking TCP open ports.
- High performance.
- Self-contained server what can reload GeoLite2 databases and/or SSL certificates without stop/start. The `hup` signal is honored.
- Self-contained server that can reload GeoLite2 databases and/or SSL certificates without stop/start. The `hup` signal is honored.
- HTML templates for the landing page.
- Text plain and JSON output.
## Endpoints
- https://ifconfig.es/
- https://ifconfig.es/client-port
- https://ifconfig.es/json (this is the same as `curl -H "Accept: application/json" https://ifconfig.es/`)
- https://ifconfig.es/geo
- https://ifconfig.es/geo/city
@ -62,23 +80,61 @@ curl -6 ifconfig.es
- https://ifconfig.es/all
- https://ifconfig.es/headers
- https://ifconfig.es/<header_name>
- https://ifconfig.es/scan/tcp/<port_number>
- https://dns.ifconfig.es
## DNS discovery
The DNS discovery works by forcing the client to make a request to `<uuid>.dns.ifconfig.es` this DNS request is handled by a microdns server
included in the `whatismyip` binary. In order to run the discovery server, a configuration file in the following form has to be created:
```yaml
---
domain: dns.example.com
redirect_port: ":8000"
resource_records:
- "1800 IN SOA xns.example.com. hostmaster.example.com. 1 10000 2400 604800 1800"
- "3600 IN NS xns.example.com."
ipv4:
- "127.0.0.2"
ipv6:
- "aaa:aaa:aaa:aaaa::1"
```
The DNS authority for example.com has delegated the subdomain zone `dns.example.com` to the server running the `whatismyip` service.
The client can request the URL `dns.example.com` by following the redirection `curl -L dns.example.com`.
To avoid the redirection, you can provide a valid URL, for example, for the real [ifconfig.es](https://ifconfig.es):
```bash
curl $(uuidgen).dns.ifconfig.es
curl $(cat /proc/sys/kernel/random/uuid).dns.ifconfig.es
```
## Build
Golang >= 1.17 is required. Previous versions may work.
Golang >= 1.22 is required.
`make build`
## Usage
```text
Usage of ./whatismyip:
Usage of whatismyip:
-bind string
Listening address (see https://pkg.go.dev/net?#Listen) (default ":8080")
-enable-http3
Enable HTTP/3 protocol. HTTP/3 requires --tls-bind set, as HTTP/3 starts as a TLS connection that then gets upgraded to UDP. The UDP port is the same as the one used for the TLS server.
-enable-secure-headers
Add sane security-related headers to every response
-geoip2-asn string
Path to GeoIP2 ASN database
-geoip2-city string
Path to GeoIP2 city database
-resolver string
Path to the resolver configuration. It actually enables the resolver for DNS client discovery.
-template string
Path to template file
-tls-bind string
@ -88,7 +144,9 @@ Usage of ./whatismyip:
-tls-key string
When using TLS, path to private key file
-trusted-header string
Trusted request header for remote IP (e.g. X-Real-IP)
Trusted request header for remote IP (e.g. X-Real-IP). When using this feature if -trusted-port-header is not set the client port is shown as 'unknown'
-trusted-port-header string
Trusted request header for remote client port (e.g. X-Real-Port). When this parameter is set -trusted-header becomes mandatory
-version
Output version information and exit
```
@ -101,27 +159,35 @@ Usage of ./whatismyip:
./whatismyip -geoip2-city ./test/GeoIP2-City-Test.mmdb -geoip2-asn ./test/GeoLite2-ASN-Test.mmdb
```
### Run a TLS (HTTP/2) server only
### Run a TLS (HTTP/2) and enable What is my DNS
```bash
./whatismyip -geoip2-city ./test/GeoIP2-City-Test.mmdb -geoip2-asn ./test/GeoLite2-ASN-Test.mmdb \
-bind "" -tls-bind :8081 -tls-crt ./test/server.pem -tls-key ./test/server.key
-bind "" -tls-bind :8081 -tls-crt ./test/server.pem -tls-key ./test/server.key \
-resolver ./test/resolver.yml
```
### Run a default TCP server with a custom template and trust a custom header set by an upstream proxy
### Run an HTTP/3 server
```bash
./whatismyip -geoip2-city ./test/GeoIP2-City-Test.mmdb -geoip2-asn ./test/GeoLite2-ASN-Test.mmdb \
-trusted-header X-Real-IP -template mytemplate.tmpl
-bind "" -tls-bind :8081 -tls-crt ./test/server.pem -tls-key ./test/server.key -enable-http3
```
### Run a default TCP server with a custom template and trust a pair of custom headers set by an upstream proxy
```bash
./whatismyip -geoip2-city ./test/GeoIP2-City-Test.mmdb -geoip2-asn ./test/GeoLite2-ASN-Test.mmdb \
-trusted-header X-Real-IP -trusted-port-header X-Real-Port -template mytemplate.tmpl
```
## Download
Download latest version from https://github.com/dcarrillo/whatismyip/releases
Download the latest version from [github](https://github.com/dcarrillo/whatismyip/releases)
## Docker
An ultra-light (~9MB) image is available.
An ultra-light (~4MB) image is available on [docker hub](https://hub.docker.com/r/dcarrillo/whatismyip). Since version `2.1.2`, the binary is compressed using [upx](https://github.com/upx/upx).
### Run a container locally using test databases

View File

@ -2,28 +2,22 @@ package main
import (
"context"
"errors"
"flag"
"fmt"
"log"
"net/http"
"os"
"os/signal"
"syscall"
"slices"
"time"
"github.com/dcarrillo/whatismyip/internal/httputils"
"github.com/dcarrillo/whatismyip/internal/setting"
"github.com/dcarrillo/whatismyip/models"
"github.com/dcarrillo/whatismyip/resolver"
"github.com/dcarrillo/whatismyip/server"
"github.com/gin-contrib/secure"
"github.com/patrickmn/go-cache"
"github.com/dcarrillo/whatismyip/router"
"github.com/gin-gonic/gin"
"github.com/unrolled/secure"
)
var (
tcpServer *http.Server
tlsServer *http.Server
engine *gin.Engine
)
func main() {
@ -32,135 +26,66 @@ func main() {
fmt.Print(o)
os.Exit(0)
} else if err != nil {
fmt.Print(err)
fmt.Println(err)
os.Exit(1)
}
models.Setup(setting.App.GeodbPath.City, setting.App.GeodbPath.ASN)
setupEngine()
servers := []server.Server{}
engine := setupEngine()
if setting.App.Resolver.Domain != "" {
store := cache.New(1*time.Minute, 10*time.Minute)
dnsEngine := resolver.Setup(store)
nameServer := server.NewDNSServer(context.Background(), dnsEngine.Handler())
servers = append(servers, nameServer)
engine.Use(router.GetDNSDiscoveryHandler(store, setting.App.Resolver.Domain, setting.App.Resolver.RedirectPort))
}
router.SetupTemplate(engine)
router.Setup(engine)
servers = slices.Concat(servers, setupHTTPServers(context.Background(), engine.Handler()))
if setting.App.BindAddress != "" {
runTCPServer()
}
if setting.App.TLSAddress != "" {
runTLSServer()
}
runHandler()
whatismyip := server.Setup(servers)
whatismyip.Run()
}
func runHandler() {
signalChan := make(chan os.Signal, 3)
signal.Notify(signalChan, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM)
ctx := context.Background()
var s os.Signal
for {
s = <-signalChan
if s == syscall.SIGHUP {
models.CloseDBs()
models.Setup(setting.App.GeodbPath.City, setting.App.GeodbPath.ASN)
router.SetupTemplate(engine)
if setting.App.BindAddress != "" {
if err := tcpServer.Shutdown(ctx); err != nil {
log.Printf("TCP server forced to shutdown: %s", err)
}
runTCPServer()
}
if setting.App.TLSAddress != "" {
if err := tlsServer.Shutdown(ctx); err != nil {
log.Printf("TLS server forced to shutdown: %s", err)
}
runTLSServer()
}
} else {
log.Printf("Shutting down...")
if setting.App.BindAddress != "" {
if err := tcpServer.Shutdown(ctx); err != nil {
log.Printf("TCP server forced to shutdown: %s", err)
}
}
if setting.App.TLSAddress != "" {
if err := tlsServer.Shutdown(ctx); err != nil {
log.Printf("TLS server forced to shutdown: %s", err)
}
}
models.CloseDBs()
break
}
}
}
func runTCPServer() {
tcpServer = &http.Server{
Addr: setting.App.BindAddress,
Handler: engine,
ReadTimeout: setting.App.Server.ReadTimeout,
WriteTimeout: setting.App.Server.WriteTimeout,
}
go func() {
log.Printf("Starting TCP server listening on %s", setting.App.BindAddress)
if err := tcpServer.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
log.Fatal(err)
}
log.Printf("Stopping TCP server...")
}()
}
func runTLSServer() {
tlsServer = &http.Server{
Addr: setting.App.TLSAddress,
Handler: engine,
ReadTimeout: setting.App.Server.ReadTimeout,
WriteTimeout: setting.App.Server.WriteTimeout,
}
go func() {
log.Printf("Starting TLS server listening on %s", setting.App.TLSAddress)
if err := tlsServer.ListenAndServeTLS(setting.App.TLSCrtPath, setting.App.TLSKeyPath); err != nil &&
!errors.Is(err, http.ErrServerClosed) {
log.Fatal(err)
}
log.Printf("Stopping TLS server...")
}()
}
func setupEngine() {
func setupEngine() *gin.Engine {
gin.DisableConsoleColor()
if os.Getenv(gin.EnvGinMode) == "" {
gin.SetMode(gin.ReleaseMode)
}
engine = gin.New()
engine := gin.New()
engine.Use(gin.LoggerWithFormatter(httputils.GetLogFormatter))
engine.Use(gin.Recovery())
if setting.App.EnableSecureHeaders {
engine.Use(addSecureHeaders())
}
_ = engine.SetTrustedProxies(nil)
engine.TrustedPlatform = setting.App.TrustedHeader
}
func addSecureHeaders() gin.HandlerFunc {
return func(c *gin.Context) {
err := secure.New(secure.Options{
engine.Use(secure.New(secure.Config{
BrowserXssFilter: true,
ContentTypeNosniff: true,
FrameDeny: true,
}).Process(c.Writer, c.Request)
if err != nil {
c.Abort()
return
}
}))
}
_ = engine.SetTrustedProxies(nil)
engine.TrustedPlatform = setting.App.TrustedHeader
// Avoid header rewrite if response is a redirection.
if status := c.Writer.Status(); status > 300 && status < 399 {
c.Abort()
return engine
}
func setupHTTPServers(ctx context.Context, handler http.Handler) []server.Server {
var servers []server.Server
if setting.App.BindAddress != "" {
tcpServer := server.NewTCPServer(ctx, &handler)
servers = append(servers, tcpServer)
}
if setting.App.TLSAddress != "" {
tlsServer := server.NewTLSServer(ctx, &handler)
servers = append(servers, tlsServer)
if setting.App.EnableHTTP3 {
quicServer := server.NewQuicServer(ctx, tlsServer)
servers = append(servers, quicServer)
}
}
return servers
}

122
go.mod
View File

@ -1,60 +1,100 @@
module github.com/dcarrillo/whatismyip
go 1.18
go 1.22
require (
github.com/gin-gonic/gin v1.7.7
github.com/oschwald/maxminddb-golang v1.9.0
github.com/stretchr/testify v1.7.1
github.com/testcontainers/testcontainers-go v0.12.0
github.com/unrolled/secure v1.10.0
github.com/docker/docker v26.1.3+incompatible
github.com/gin-contrib/secure v1.1.0
github.com/gin-gonic/gin v1.10.0
github.com/google/uuid v1.6.0
github.com/miekg/dns v1.1.61
github.com/oschwald/maxminddb-golang v1.13.0
github.com/patrickmn/go-cache v2.1.0+incompatible
github.com/quic-go/quic-go v0.45.0
github.com/stretchr/testify v1.9.0
github.com/testcontainers/testcontainers-go v0.31.0
gopkg.in/yaml.v3 v3.0.1
)
require (
dario.cat/mergo v1.0.0 // indirect
github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
github.com/Microsoft/go-winio v0.5.2 // indirect
github.com/Microsoft/hcsshim v0.9.2 // indirect
github.com/cenkalti/backoff v2.2.1+incompatible // indirect
github.com/containerd/cgroups v1.0.3 // indirect
github.com/containerd/containerd v1.6.2 // indirect
github.com/Microsoft/go-winio v0.6.1 // indirect
github.com/Microsoft/hcsshim v0.11.4 // indirect
github.com/bytedance/sonic v1.11.8 // indirect
github.com/bytedance/sonic/loader v0.1.1 // indirect
github.com/cenkalti/backoff/v4 v4.2.1 // indirect
github.com/cloudwego/base64x v0.1.4 // indirect
github.com/cloudwego/iasm v0.2.0 // indirect
github.com/containerd/containerd v1.7.15 // indirect
github.com/containerd/log v0.1.0 // indirect
github.com/cpuguy83/dockercfg v0.3.1 // indirect
github.com/davecgh/go-spew v1.1.1 // indirect
github.com/docker/distribution v2.8.1+incompatible // indirect
github.com/docker/docker v20.10.14+incompatible // indirect
github.com/docker/go-connections v0.4.0 // indirect
github.com/docker/go-units v0.4.0 // indirect
github.com/distribution/reference v0.5.0 // indirect
github.com/docker/go-connections v0.5.0 // indirect
github.com/docker/go-units v0.5.0 // indirect
github.com/felixge/httpsnoop v1.0.4 // indirect
github.com/gabriel-vasile/mimetype v1.4.4 // indirect
github.com/gin-contrib/sse v0.1.0 // indirect
github.com/go-playground/locales v0.14.0 // indirect
github.com/go-playground/universal-translator v0.18.0 // indirect
github.com/go-playground/validator/v10 v10.10.1 // indirect
github.com/go-logr/logr v1.4.1 // indirect
github.com/go-logr/stdr v1.2.2 // indirect
github.com/go-ole/go-ole v1.2.6 // indirect
github.com/go-playground/locales v0.14.1 // indirect
github.com/go-playground/universal-translator v0.18.1 // indirect
github.com/go-playground/validator/v10 v10.22.0 // indirect
github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
github.com/goccy/go-json v0.10.3 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/golang/protobuf v1.5.2 // indirect
github.com/google/uuid v1.3.0 // indirect
github.com/golang/protobuf v1.5.4 // indirect
github.com/google/pprof v0.0.0-20240528025155-186aa0362fba // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/leodido/go-urn v1.2.1 // indirect
github.com/magiconair/properties v1.8.6 // indirect
github.com/mattn/go-isatty v0.0.14 // indirect
github.com/moby/sys/mount v0.3.1 // indirect
github.com/moby/sys/mountinfo v0.6.0 // indirect
github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6 // indirect
github.com/klauspost/compress v1.16.0 // indirect
github.com/klauspost/cpuid/v2 v2.2.8 // indirect
github.com/kr/text v0.2.0 // indirect
github.com/leodido/go-urn v1.4.0 // indirect
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
github.com/magiconair/properties v1.8.7 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/moby/docker-image-spec v1.3.1 // indirect
github.com/moby/patternmatcher v0.6.0 // indirect
github.com/moby/sys/sequential v0.5.0 // indirect
github.com/moby/sys/user v0.1.0 // indirect
github.com/moby/term v0.5.0 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.2 // indirect
github.com/morikuni/aec v1.0.0 // indirect
github.com/onsi/ginkgo/v2 v2.19.0 // indirect
github.com/opencontainers/go-digest v1.0.0 // indirect
github.com/opencontainers/image-spec v1.0.2 // indirect
github.com/opencontainers/runc v1.1.1 // indirect
github.com/opencontainers/image-spec v1.1.0 // indirect
github.com/pelletier/go-toml/v2 v2.2.2 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/sirupsen/logrus v1.8.1 // indirect
github.com/ugorji/go/codec v1.2.7 // indirect
go.opencensus.io v0.23.0 // indirect
golang.org/x/crypto v0.0.0-20220331220935-ae2d96664a29 // indirect
golang.org/x/net v0.0.0-20220401154927-543a649e0bdd // indirect
golang.org/x/sys v0.0.0-20220330033206-e17cdc41300f // indirect
golang.org/x/text v0.3.7 // indirect
google.golang.org/genproto v0.0.0-20220401170504-314d38edb7de // indirect
google.golang.org/grpc v1.45.0 // indirect
google.golang.org/protobuf v1.28.0 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
github.com/quic-go/qpack v0.4.0 // indirect
github.com/shirou/gopsutil/v3 v3.23.12 // indirect
github.com/shoenig/go-m1cpu v0.1.6 // indirect
github.com/sirupsen/logrus v1.9.3 // indirect
github.com/tklauser/go-sysconf v0.3.12 // indirect
github.com/tklauser/numcpus v0.6.1 // indirect
github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
github.com/ugorji/go/codec v1.2.12 // indirect
github.com/yusufpapurcu/wmi v1.2.3 // indirect
go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.49.0 // indirect
go.opentelemetry.io/otel v1.24.0 // indirect
go.opentelemetry.io/otel/metric v1.24.0 // indirect
go.opentelemetry.io/otel/trace v1.24.0 // indirect
go.uber.org/mock v0.4.0 // indirect
golang.org/x/arch v0.8.0 // indirect
golang.org/x/crypto v0.24.0 // indirect
golang.org/x/exp v0.0.0-20240604190554-fc45aab8b7f8 // indirect
golang.org/x/mod v0.18.0 // indirect
golang.org/x/net v0.26.0 // indirect
golang.org/x/sync v0.7.0 // indirect
golang.org/x/sys v0.21.0 // indirect
golang.org/x/text v0.16.0 // indirect
golang.org/x/tools v0.22.0 // indirect
google.golang.org/genproto/googleapis/api v0.0.0-20231106174013-bbf56f31fb17 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20231120223509-83a465c0220f // indirect
google.golang.org/grpc v1.59.0 // indirect
google.golang.org/protobuf v1.34.2 // indirect
)

1297
go.sum

File diff suppressed because it is too large Load Diff

View File

@ -4,49 +4,78 @@ import (
"context"
"crypto/tls"
"encoding/json"
"io/ioutil"
"log"
"fmt"
"io"
"net"
"net/http"
"path/filepath"
"runtime"
"strings"
"testing"
"time"
validator "github.com/dcarrillo/whatismyip/internal/validator/uuid"
"github.com/dcarrillo/whatismyip/router"
"github.com/docker/docker/api/types"
"github.com/quic-go/quic-go/http3"
"github.com/stretchr/testify/assert"
"github.com/testcontainers/testcontainers-go"
"github.com/stretchr/testify/require"
tc "github.com/testcontainers/testcontainers-go"
"github.com/testcontainers/testcontainers-go/wait"
)
func buildContainer() testcontainers.ContainerRequest {
_, filename, _, _ := runtime.Caller(0)
dir := filepath.Dir(filename)
func customDialContext() func(ctx context.Context, network, addr string) (net.Conn, error) {
return func(ctx context.Context, network, addr string) (net.Conn, error) {
dialer := &net.Dialer{
Resolver: &net.Resolver{
PreferGo: true,
Dial: func(ctx context.Context, _, _ string) (net.Conn, error) {
d := net.Dialer{}
return d.DialContext(ctx, "udp", "127.0.0.1:53531")
},
},
}
req := testcontainers.ContainerRequest{
FromDockerfile: testcontainers.FromDockerfile{
Context: "../",
Dockerfile: "Dockerfile",
},
Cmd: []string{
"-geoip2-city", "/tmp/GeoIP2-City-Test.mmdb",
"-geoip2-asn", "/tmp/GeoLite2-ASN-Test.mmdb",
"-bind", ":8000",
"-tls-bind", ":8001",
"-tls-crt", "/tmp/server.pem",
"-tls-key", "/tmp/server.key",
"-trusted-header", "X-Real-IP",
"-enable-secure-headers",
},
ExposedPorts: []string{"8000:8000", "8001:8001"},
WaitingFor: wait.ForLog("Starting TLS server listening on :8001"),
BindMounts: map[string]string{
"/tmp/GeoIP2-City-Test.mmdb": filepath.Join(dir, "/../test/GeoIP2-City-Test.mmdb"),
"/tmp/GeoLite2-ASN-Test.mmdb": filepath.Join(dir, "/../test/GeoLite2-ASN-Test.mmdb"),
"/tmp/server.pem": filepath.Join(dir, "/../test/server.pem"),
"/tmp/server.key": filepath.Join(dir, "/../test/server.key"),
},
return dialer.DialContext(ctx, network, addr)
}
}
return req
func testWhatIsMyDNS(t *testing.T) {
t.Run("RequestDNSDiscovery", func(t *testing.T) {
http.DefaultTransport.(*http.Transport).DialContext = customDialContext()
req, err := http.NewRequest("GET", "http://localhost:8000", nil)
assert.NoError(t, err)
req.Host = "dns.example.com"
client := &http.Client{
CheckRedirect: func(_ *http.Request, _ []*http.Request) error {
return http.ErrUseLastResponse
},
}
resp, err := client.Do(req)
assert.NoError(t, err)
assert.Equal(t, http.StatusFound, resp.StatusCode)
u, err := resp.Location()
assert.NoError(t, err)
assert.True(t, validator.IsValid(strings.Split(u.Hostname(), ".")[0]))
for _, accept := range []string{"application/json", "*/*", "text/html"} {
req, err = http.NewRequest("GET", u.String(), nil)
req.Host = u.Hostname()
req.Header.Set("Accept", accept)
assert.NoError(t, err)
resp, err = client.Do(req)
assert.NoError(t, err)
assert.Equal(t, http.StatusOK, resp.StatusCode)
body, err := io.ReadAll(resp.Body)
assert.NoError(t, err)
if accept == "application/json" {
assert.NoError(t, json.Unmarshal(body, &router.DNSJSONResponse{}))
} else {
ip := strings.Split(string(body), " ")[0]
assert.True(t, net.ParseIP(ip) != nil)
}
}
})
}
func TestContainerIntegration(t *testing.T) {
@ -55,33 +84,180 @@ func TestContainerIntegration(t *testing.T) {
}
ctx := context.Background()
container, err := testcontainers.GenericContainer(ctx, testcontainers.GenericContainerRequest{
ContainerRequest: buildContainer(),
Started: true,
c, err := tc.GenericContainer(ctx, tc.GenericContainerRequest{
ContainerRequest: tc.ContainerRequest{
FromDockerfile: tc.FromDockerfile{
Context: "../",
Dockerfile: "./test/Dockerfile",
PrintBuildLog: true,
KeepImage: false,
BuildOptionsModifier: func(buildOptions *types.ImageBuildOptions) {
buildOptions.Target = "test"
},
},
ExposedPorts: []string{
"8000:8000",
"8001:8001",
"8001:8001/udp",
"53531:53/udp",
},
Cmd: []string{
"-geoip2-city", "/GeoIP2-City-Test.mmdb",
"-geoip2-asn", "/GeoLite2-ASN-Test.mmdb",
"-bind", ":8000",
"-tls-bind", ":8001",
"-tls-crt", "/server.pem",
"-tls-key", "/server.key",
"-trusted-header", "X-Real-IP",
"-enable-secure-headers",
"-enable-http3",
"-resolver", "/resolver.yml",
},
Files: []tc.ContainerFile{
{
HostFilePath: "./../test/GeoIP2-City-Test.mmdb",
ContainerFilePath: "/GeoIP2-City-Test.mmdb",
},
{
HostFilePath: "./../test/GeoLite2-ASN-Test.mmdb",
ContainerFilePath: "/GeoLite2-ASN-Test.mmdb",
},
{
HostFilePath: "./../test/server.pem",
ContainerFilePath: "/server.pem",
},
{
HostFilePath: "./../test/server.key",
ContainerFilePath: "/server.key",
},
{
HostFilePath: "./../test/resolver.yml",
ContainerFilePath: "/resolver.yml",
},
},
WaitingFor: wait.ForAll(
wait.ForListeningPort("8000/tcp").WithStartupTimeout(5*time.Second),
wait.ForListeningPort("8001/tcp").WithStartupTimeout(5*time.Second),
wait.ForListeningPort("8001/udp").WithStartupTimeout(5*time.Second),
wait.ForListeningPort("53/udp").WithStartupTimeout(5*time.Second),
),
AutoRemove: true,
},
Started: true,
})
if err != nil {
log.Fatal(err)
}
defer func() {
err := container.Terminate(ctx)
if err != nil {
log.Fatal(err)
}
}()
require.NoError(t, err)
t.Cleanup(func() { c.Terminate(ctx) })
http.DefaultTransport.(*http.Transport).TLSClientConfig = &tls.Config{InsecureSkipVerify: true}
for _, url := range []string{"http://localhost:8000", "https://localhost:8001"} {
client := &http.Client{}
req, _ := http.NewRequest("GET", url, nil)
req.Header.Set("Accept", "application/json")
resp, _ := client.Do(req)
assert.Equal(t, 200, resp.StatusCode)
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
log.Fatal(err)
}
assert.NoError(t, json.Unmarshal(body, &router.JSONResponse{}))
tests := []struct {
name string
url string
quic bool
}{
{
name: "RequestOverHTTP",
url: "http://localhost:8000",
quic: false,
},
{
name: "RequestOverHTTPs",
url: "https://localhost:8001",
quic: false,
},
{
name: "RequestOverUDPWithQuic",
url: "https://localhost:8001",
quic: true,
},
}
testsPortScan := []struct {
name string
port int
want bool
}{
{
name: "RequestOpenPortScan",
port: 8000,
want: true,
},
{
name: "RequestClosedPortScan",
port: 65533,
want: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
req, err := http.NewRequest("GET", tt.url, nil)
assert.NoError(t, err)
req.Header.Set("Accept", "application/json")
var resp *http.Response
var body []byte
if tt.quic {
resp, body, err = doQuicRequest(req)
} else {
client := &http.Client{}
resp, _ = client.Do(req)
body, err = io.ReadAll(resp.Body)
if strings.Contains(tt.url, "https://") {
assert.Equal(t, `h3=":8001"; ma=2592000`, resp.Header.Get("Alt-Svc"))
}
}
assert.NoError(t, err)
assert.Equal(t, 200, resp.StatusCode)
assert.NoError(t, json.Unmarshal(body, &router.JSONResponse{}))
assert.Equal(t, "DENY", resp.Header.Get("X-Frame-Options"))
assert.Equal(t, "nosniff", resp.Header.Get("X-Content-Type-Options"))
assert.Equal(t, "1; mode=block", resp.Header.Get("X-Xss-Protection"))
})
}
for _, tt := range testsPortScan {
t.Run(tt.name, func(t *testing.T) {
req, err := http.NewRequest("GET", fmt.Sprintf("http://localhost:8000/scan/tcp/%d", tt.port), nil)
assert.NoError(t, err)
req.Header.Set("Accept", "application/json")
req.Header.Set("X-Real-IP", "127.0.0.1")
client := &http.Client{}
resp, err := client.Do(req)
assert.NoError(t, err)
assert.Equal(t, 200, resp.StatusCode)
body, err := io.ReadAll(resp.Body)
assert.NoError(t, err)
j := router.JSONScanResponse{}
assert.NoError(t, json.Unmarshal(body, &j))
assert.Equal(t, tt.want, j.Reachable)
})
}
testWhatIsMyDNS(t)
}
func doQuicRequest(req *http.Request) (*http.Response, []byte, error) {
roundTripper := &http3.RoundTripper{
TLSClientConfig: &tls.Config{
InsecureSkipVerify: true,
},
}
defer roundTripper.Close()
client := &http.Client{
Transport: roundTripper,
}
resp, err := client.Do(req)
if err != nil {
return nil, nil, err
}
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
return resp, body, nil
}

View File

@ -3,9 +3,11 @@ package httputils
import (
"fmt"
"net/http"
"net/textproto"
"sort"
"strings"
"github.com/dcarrillo/whatismyip/internal/setting"
"github.com/gin-gonic/gin"
)
@ -32,6 +34,17 @@ func HeadersToSortedString(headers http.Header) string {
return output
}
// GetHeadersWithoutTrustedHeaders return a http.Heade object with the original headers except trusted headers
func GetHeadersWithoutTrustedHeaders(ctx *gin.Context) http.Header {
h := ctx.Request.Header
for _, k := range []string{setting.App.TrustedHeader, setting.App.TrustedPortHeader} {
delete(h, textproto.CanonicalMIMEHeaderKey(k))
}
return h
}
// GetLogFormatter returns our custom log format
func GetLogFormatter(param gin.LogFormatterParams) string {
return fmt.Sprintf("%s - [%s] \"%s %s %s\" %d %d %d %s \"%s\" \"%s\" \"%s\"\n",
@ -50,7 +63,7 @@ func GetLogFormatter(param gin.LogFormatterParams) string {
)
}
func normalizeLog(log interface{}) interface{} {
func normalizeLog(log any) any {
switch v := log.(type) {
case string:
if v == "" {

View File

@ -9,6 +9,7 @@ import (
"time"
"github.com/dcarrillo/whatismyip/internal/core"
"gopkg.in/yaml.v3"
)
type geodbPath struct {
@ -19,6 +20,15 @@ type serverSettings struct {
ReadTimeout time.Duration
WriteTimeout time.Duration
}
type resolver struct {
Domain string `yaml:"domain"`
ResourceRecords []string `yaml:"resource_records"`
RedirectPort string `yaml:"redirect_port,omitempty"`
Ipv4 []string `yaml:"ipv4,omitempty"`
Ipv6 []string `yaml:"ipv6,omitempty"`
}
type settings struct {
GeodbPath geodbPath
TemplatePath string
@ -27,17 +37,18 @@ type settings struct {
TLSCrtPath string
TLSKeyPath string
TrustedHeader string
TrustedPortHeader string
EnableSecureHeaders bool
EnableHTTP3 bool
Server serverSettings
Resolver resolver
version bool
}
const defaultAddress = ":8080"
// ErrVersion is the custom error triggered when -version flag is passed
var ErrVersion = errors.New("setting: version requested")
// App is the var with the parsed settings
var App = settings{
// hard-coded for the time being
Server: serverSettings{
@ -46,15 +57,20 @@ var App = settings{
},
}
// Setup initializes the App object parsing the flags
func Setup(args []string) (output string, err error) {
flags := flag.NewFlagSet("whatismyip", flag.ContinueOnError)
var buf bytes.Buffer
var resolverConf string
flags.SetOutput(&buf)
flags.StringVar(&App.GeodbPath.City, "geoip2-city", "", "Path to GeoIP2 city database")
flags.StringVar(&App.GeodbPath.ASN, "geoip2-asn", "", "Path to GeoIP2 ASN database")
flags.StringVar(&App.TemplatePath, "template", "", "Path to template file")
flags.StringVar(&App.TemplatePath, "template", "", "Path to the template file")
flags.StringVar(
&resolverConf,
"resolver",
"",
"Path to the resolver configuration. It actually enables the resolver for DNS client discovery.")
flags.StringVar(
&App.BindAddress,
"bind",
@ -69,10 +85,17 @@ func Setup(args []string) (output string, err error) {
)
flags.StringVar(&App.TLSCrtPath, "tls-crt", "", "When using TLS, path to certificate file")
flags.StringVar(&App.TLSKeyPath, "tls-key", "", "When using TLS, path to private key file")
flags.StringVar(&App.TrustedHeader,
flags.StringVar(
&App.TrustedHeader,
"trusted-header",
"",
"Trusted request header for remote IP (e.g. X-Real-IP)",
"Trusted request header for remote IP (e.g. X-Real-IP). When using this feature if -trusted-port-header is not set the client port is shown as 'unknown'",
)
flags.StringVar(
&App.TrustedPortHeader,
"trusted-port-header",
"",
"Trusted request header for remote client port (e.g. X-Real-Port). When this parameter is set -trusted-header becomes mandatory",
)
flags.BoolVar(&App.version, "version", false, "Output version information and exit")
flags.BoolVar(
@ -81,6 +104,12 @@ func Setup(args []string) (output string, err error) {
false,
"Add sane security-related headers to every response",
)
flags.BoolVar(
&App.EnableHTTP3,
"enable-http3",
false,
"Enable HTTP/3 protocol. HTTP/3 requires --tls-bind set, as HTTP/3 starts as a TLS connection that then gets upgraded to UDP. The UDP port is the same as the one used for the TLS server.",
)
err = flags.Parse(args)
if err != nil {
@ -91,12 +120,20 @@ func Setup(args []string) (output string, err error) {
return fmt.Sprintf("whatismyip version %s", core.Version), ErrVersion
}
if App.TrustedPortHeader != "" && App.TrustedHeader == "" {
return "", fmt.Errorf("truster-header is mandatory when truster-port-header is set")
}
if App.GeodbPath.City == "" || App.GeodbPath.ASN == "" {
return "", fmt.Errorf("geoip2-city and geoip2-asn parameters are mandatory")
}
if (App.TLSAddress != "") && (App.TLSCrtPath == "" || App.TLSKeyPath == "") {
return "", fmt.Errorf("In order to use TLS -tls-crt and -tls-key flags are mandatory")
return "", fmt.Errorf("in order to use TLS, the -tls-crt and -tls-key flags are mandatory")
}
if App.EnableHTTP3 && App.TLSAddress == "" {
return "", fmt.Errorf("in order to use HTTP3, the -tls-bind is mandatory")
}
if App.TemplatePath != "" {
@ -109,5 +146,21 @@ func Setup(args []string) (output string, err error) {
}
}
if resolverConf != "" {
var err error
App.Resolver, err = readYAML(resolverConf)
if err != nil {
return "", fmt.Errorf("error reading resolver configuration %s", err)
}
}
return buf.String(), nil
}
func readYAML(path string) (resolver resolver, err error) {
yamlFile, err := os.ReadFile(path)
if err != nil {
return resolver, err
}
return resolver, yaml.Unmarshal(yamlFile, &resolver)
}

View File

@ -8,51 +8,56 @@ import (
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestParseMandatoryFlags(t *testing.T) {
var mandatoryFlags = []struct {
args []string
conf settings
}{
{
[]string{},
settings{},
},
{
[]string{"-geoip2-city", "/city-path"},
settings{},
},
{
[]string{"-geoip2-asn", "/asn-path"},
settings{},
},
{
[]string{
"-geoip2-city", "/city-path", "-geoip2-asn", "/asn-path", "-tls-bind", ":9000",
},
settings{},
},
{
[]string{
"-geoip2-city", "/city-path", "-geoip2-asn", "/asn-path", "-tls-bind", ":9000",
"-tls-crt", "/crt-path",
},
settings{},
},
{
[]string{
"-geoip2-city", "/city-path", "-geoip2-asn", "/asn-path", "-tls-bind", ":9000",
"-tls-key", "/key-path",
},
settings{},
},
{
[]string{
"-geoip2-city", "/city-path", "-geoip2-asn", "/asn-path", "-enable-http3",
},
},
{
[]string{
"-geoip2-city", "/city-path", "-geoip2-asn", "/asn-path", "-bind", ":8000",
"-trusted-port-header", "port-header",
},
},
}
for _, tt := range mandatoryFlags {
t.Run(strings.Join(tt.args, " "), func(t *testing.T) {
_, err := Setup(tt.args)
assert.NotNil(t, err)
require.NotNil(t, err)
assert.Contains(t, err.Error(), "mandatory")
})
}
@ -70,13 +75,7 @@ func TestParseFlags(t *testing.T) {
City: "/city-path",
ASN: "/asn-path",
},
TemplatePath: "",
BindAddress: ":8080",
TLSAddress: "",
TLSCrtPath: "",
TLSKeyPath: "",
TrustedHeader: "",
EnableSecureHeaders: false,
BindAddress: ":8080",
Server: serverSettings{
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
@ -90,13 +89,7 @@ func TestParseFlags(t *testing.T) {
City: "/city-path",
ASN: "/asn-path",
},
TemplatePath: "",
BindAddress: ":8001",
TLSAddress: "",
TLSCrtPath: "",
TLSKeyPath: "",
TrustedHeader: "",
EnableSecureHeaders: false,
BindAddress: ":8001",
Server: serverSettings{
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
@ -113,13 +106,29 @@ func TestParseFlags(t *testing.T) {
City: "/city-path",
ASN: "/asn-path",
},
TemplatePath: "",
BindAddress: ":8080",
TLSAddress: ":9000",
TLSCrtPath: "/crt-path",
TLSKeyPath: "/key-path",
TrustedHeader: "",
EnableSecureHeaders: false,
BindAddress: ":8080",
TLSAddress: ":9000",
TLSCrtPath: "/crt-path",
TLSKeyPath: "/key-path",
Server: serverSettings{
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
},
},
},
{
[]string{
"-geoip2-city", "/city-path", "-geoip2-asn", "/asn-path",
"-trusted-header", "header", "-trusted-port-header", "port-header",
},
settings{
GeodbPath: geodbPath{
City: "/city-path",
ASN: "/asn-path",
},
BindAddress: ":8080",
TrustedHeader: "header",
TrustedPortHeader: "port-header",
Server: serverSettings{
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
@ -136,11 +145,7 @@ func TestParseFlags(t *testing.T) {
City: "/city-path",
ASN: "/asn-path",
},
TemplatePath: "",
BindAddress: ":8080",
TLSAddress: "",
TLSCrtPath: "",
TLSKeyPath: "",
TrustedHeader: "header",
EnableSecureHeaders: true,
Server: serverSettings{
@ -154,7 +159,7 @@ func TestParseFlags(t *testing.T) {
for _, tt := range flags {
t.Run(strings.Join(tt.args, " "), func(t *testing.T) {
_, err := Setup(tt.args)
assert.Nil(t, err)
require.Nil(t, err)
assert.True(t, reflect.DeepEqual(App, tt.conf))
})
}
@ -192,6 +197,6 @@ func TestParseFlagTemplate(t *testing.T) {
"-template", "/",
}
_, err = Setup(flags)
assert.Error(t, err)
require.Error(t, err)
assert.Contains(t, err.Error(), "must be a file")
}

View File

@ -0,0 +1,10 @@
package uuid
import (
"github.com/google/uuid"
)
func IsValid(u string) bool {
_, err := uuid.Parse(u)
return err == nil
}

View File

@ -0,0 +1,37 @@
package uuid
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestIsValid(t *testing.T) {
tests := []struct {
name string
u string
want bool
}{
{
name: "Valid UUID",
u: "3b241101-e2bb-4255-8caf-4136c566a964",
want: true,
},
{
name: "Invalid UUID",
u: "invalid-uuid",
want: false,
},
{
name: "Empty string",
u: "",
want: false,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
assert.True(t, IsValid(tt.u) == tt.want)
})
}
}

View File

@ -68,18 +68,10 @@ func CloseDBs() {
// LookUp an IP and get city data
func (record *GeoRecord) LookUp(ip net.IP) error {
if err := db.city.Lookup(ip, record); err != nil {
return err
}
return nil
return db.city.Lookup(ip, record)
}
// LookUp an IP and get ASN data
func (record *ASNRecord) LookUp(ip net.IP) error {
if err := db.asn.Lookup(ip, record); err != nil {
return err
}
return nil
return db.asn.Lookup(ip, record)
}

165
resolver/setup.go Normal file
View File

@ -0,0 +1,165 @@
package resolver
import (
"log"
"net"
"strings"
"github.com/dcarrillo/whatismyip/internal/setting"
"github.com/dcarrillo/whatismyip/internal/validator/uuid"
"github.com/miekg/dns"
"github.com/patrickmn/go-cache"
)
type Resolver struct {
handler *dns.ServeMux
store *cache.Cache
domain string
rr []string
ipv4 []net.IP
ipv6 []net.IP
}
func ensureDotSuffix(s string) string {
if !strings.HasSuffix(s, ".") {
return s + "."
}
return s
}
func Setup(store *cache.Cache) *Resolver {
var ipv4, ipv6 []net.IP
for _, ip := range setting.App.Resolver.Ipv4 {
ipv4 = append(ipv4, net.ParseIP(ip))
}
for _, ip := range setting.App.Resolver.Ipv6 {
ipv6 = append(ipv6, net.ParseIP(ip))
}
resolver := &Resolver{
handler: dns.NewServeMux(),
store: store,
domain: ensureDotSuffix(setting.App.Resolver.Domain),
rr: setting.App.Resolver.ResourceRecords,
ipv4: ipv4,
ipv6: ipv6,
}
resolver.handler.HandleFunc(resolver.domain, resolver.resolve)
resolver.handler.HandleFunc(".", resolver.blackHole)
return resolver
}
func (rsv *Resolver) Handler() *dns.ServeMux {
return rsv.handler
}
func (rsv *Resolver) blackHole(w dns.ResponseWriter, r *dns.Msg) {
msg := startReply(r)
msg.SetRcode(r, dns.RcodeRefused)
w.WriteMsg(msg)
logger(w, r.Question[0], msg.Rcode)
}
func (rsv *Resolver) resolve(w dns.ResponseWriter, r *dns.Msg) {
msg := startReply(r)
q := r.Question[0]
ip, _, _ := net.SplitHostPort(w.RemoteAddr().String())
for _, res := range rsv.rr {
t := strings.Split(res, " ")[2]
if q.Qtype == dns.StringToType[t] {
brr, err := buildRR(rsv.domain + " " + res)
if err != nil {
msg.SetRcode(r, dns.RcodeServerFailure)
logger(w, q, msg.Rcode, err.Error())
} else {
msg.Answer = append(msg.Answer, brr)
logger(w, q, msg.Rcode)
}
w.WriteMsg(msg)
return
}
}
lowerName := strings.ToLower(q.Name) // lowercase because of dns-0x20
subDomain := strings.Split(lowerName, ".")[0]
switch {
case uuid.IsValid(subDomain):
msg.SetRcode(r, rsv.getIP(q, msg))
rsv.store.Add(subDomain, ip, cache.DefaultExpiration)
case lowerName == rsv.domain:
msg.SetRcode(r, rsv.getIP(q, msg))
default:
msg.SetRcode(r, dns.RcodeRefused)
}
w.WriteMsg(msg)
logger(w, q, msg.Rcode)
}
func (rsv *Resolver) getIP(question dns.Question, msg *dns.Msg) int {
if question.Qtype == dns.TypeA && len(rsv.ipv4) > 0 {
for _, ip := range rsv.ipv4 {
msg.Answer = append(msg.Answer, &dns.A{
Hdr: setHdr(question),
A: ip,
})
}
return dns.RcodeSuccess
}
if question.Qtype == dns.TypeAAAA && len(rsv.ipv6) > 0 {
for _, ip := range rsv.ipv6 {
msg.Answer = append(msg.Answer, &dns.AAAA{
Hdr: setHdr(question),
AAAA: ip,
})
}
return dns.RcodeSuccess
}
return dns.RcodeRefused
}
func buildRR(rrs string) (dns.RR, error) {
rr, err := dns.NewRR(rrs)
if err != nil {
return nil, err
}
return rr, nil
}
func setHdr(q dns.Question) dns.RR_Header {
return dns.RR_Header{
Name: q.Name,
Rrtype: q.Qtype,
Class: dns.ClassINET,
Ttl: 60,
}
}
func startReply(r *dns.Msg) *dns.Msg {
msg := new(dns.Msg)
msg.SetReply(r)
msg.Authoritative = true
return msg
}
func logger(w dns.ResponseWriter, q dns.Question, code int, err ...string) {
emsg := ""
if len(err) > 0 {
emsg = " - " + strings.Join(err, " ")
}
ip, _, _ := net.SplitHostPort(w.RemoteAddr().String())
log.Printf(
"DNS %s - %s - %s - %s%s",
ip,
dns.TypeToString[q.Qtype],
q.Name,
dns.RcodeToString[code],
emsg,
)
}

85
router/dns.go Normal file
View File

@ -0,0 +1,85 @@
package router
import (
"fmt"
"net"
"net/http"
"strings"
validator "github.com/dcarrillo/whatismyip/internal/validator/uuid"
"github.com/dcarrillo/whatismyip/service"
"github.com/gin-gonic/gin"
"github.com/google/uuid"
"github.com/patrickmn/go-cache"
)
type DNSJSONResponse struct {
DNS dnsData `json:"dns"`
}
type dnsData struct {
IP string `json:"ip"`
Country string `json:"country"`
AsnOrganization string `json:"provider"`
}
// TODO
// Implement a proper vhost manager instead of using a middleware
func GetDNSDiscoveryHandler(store *cache.Cache, domain string, redirectPort string) gin.HandlerFunc {
return func(ctx *gin.Context) {
if !strings.HasSuffix(ctx.Request.Host, domain) {
ctx.Next()
return
}
if ctx.Request.Host == domain && ctx.Request.URL.Path == "/" {
ctx.Redirect(http.StatusFound, fmt.Sprintf("http://%s.%s%s", uuid.New().String(), domain, redirectPort))
ctx.Abort()
return
}
handleDNS(ctx, store)
ctx.Abort()
}
}
func handleDNS(ctx *gin.Context, store *cache.Cache) {
d := strings.Split(ctx.Request.Host, ".")[0]
if !validator.IsValid(d) {
ctx.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
return
}
v, found := store.Get(d)
if !found {
ctx.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
return
}
ipStr, ok := v.(string)
if !ok {
ctx.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
return
}
ip := net.ParseIP(ipStr)
if ip == nil {
ctx.String(http.StatusNotFound, http.StatusText(http.StatusNotFound))
return
}
geo := service.Geo{IP: ip}
j := DNSJSONResponse{
DNS: dnsData{
IP: ipStr,
Country: geo.LookUpCity().Country.Names["en"],
AsnOrganization: geo.LookUpASN().AutonomousSystemOrganization,
},
}
switch ctx.NegotiateFormat(gin.MIMEPlain, gin.MIMEHTML, gin.MIMEJSON) {
case gin.MIMEJSON:
ctx.JSON(http.StatusOK, j)
default:
ctx.String(http.StatusOK, fmt.Sprintf("%s (%s / %s)\n", j.DNS.IP, j.DNS.Country, j.DNS.AsnOrganization))
}
}

153
router/dns_test.go Normal file
View File

@ -0,0 +1,153 @@
package router
import (
"net/http"
"net/http/httptest"
"net/url"
"strings"
"testing"
validator "github.com/dcarrillo/whatismyip/internal/validator/uuid"
"github.com/gin-gonic/gin"
"github.com/google/uuid"
"github.com/patrickmn/go-cache"
"github.com/stretchr/testify/assert"
)
func TestGetDNSDiscoveryHandler(t *testing.T) {
store := cache.New(cache.NoExpiration, cache.NoExpiration)
handler := GetDNSDiscoveryHandler(store, domain, "")
t.Run("calls next if host does not have domain suffix", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/", nil)
req.Header.Set(trustedHeader, testIP.ipv4)
req.Host = "example.com"
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Request = req
handler(c)
app.ServeHTTP(w, req)
assert.Equal(t, http.StatusOK, w.Code)
assert.Equal(t, testIP.ipv4+"\n", w.Body.String())
})
t.Run("return 404 if there is a path", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/path", nil)
req.Host = domain
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Request = req
handler(c)
app.ServeHTTP(w, req)
assert.Equal(t, http.StatusNotFound, w.Code)
})
t.Run("redirects if host is domain", func(t *testing.T) {
req, _ := http.NewRequest("GET", "/", nil)
req.Host = domain
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Request = req
handler(c)
assert.Equal(t, http.StatusFound, w.Code)
r, err := url.Parse(w.Header().Get("Location"))
assert.NoError(t, err)
assert.True(t, validator.IsValid(strings.Split(r.Host, ".")[0]))
assert.Equal(t, domain, strings.Join(strings.Split(r.Host, ".")[1:], "."))
})
}
func TestHandleDNS(t *testing.T) {
store := cache.New(cache.NoExpiration, cache.NoExpiration)
u := uuid.New().String()
tests := []struct {
name string
subDomain string
stored any
}{
{
name: "not found if the subdomain is not a valid uuid",
subDomain: "not-uuid",
stored: "",
},
{
name: "not found if the ip is not found in the store",
subDomain: u,
stored: "",
},
{
name: "not found if the ip is in store but is not valid",
subDomain: u,
stored: "bogus",
},
{
name: "not found if the store contains no string",
subDomain: u,
stored: 20,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
req, _ := http.NewRequest("GET", "/", nil)
req.Host = tt.subDomain + "." + domain
if tt.stored != "" {
store.Add(tt.subDomain, tt.stored, cache.DefaultExpiration)
}
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Request = req
handleDNS(c, store)
assert.Equal(t, http.StatusNotFound, w.Code)
})
}
}
func TestAcceptDNSRequest(t *testing.T) {
store := cache.New(cache.NoExpiration, cache.NoExpiration)
tests := []struct {
name string
accept string
want string
}{
{
name: "returns json dns data",
accept: "application/json",
want: jsonDNSIPv4,
},
{
name: "return plan text dns data",
accept: "text/plain",
want: plainDNSIPv4,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
req, _ := http.NewRequest("GET", "/", nil)
u := uuid.New().String()
req.Host = u + "." + domain
req.Header.Add("Accept", tt.accept)
w := httptest.NewRecorder()
c, _ := gin.CreateTestContext(w)
c.Request = req
store.Add(u, testIP.ipv4, cache.DefaultExpiration)
handleDNS(c, store)
assert.Equal(t, http.StatusOK, w.Code)
assert.Equal(t, tt.want, w.Body.String())
})
}
}

View File

@ -11,7 +11,6 @@ import (
"github.com/gin-gonic/gin"
)
// JSONResponse maps data as json
type JSONResponse struct {
IP string `json:"ip"`
IPVersion byte `json:"ip_version"`
@ -44,15 +43,31 @@ func getRoot(ctx *gin.Context) {
}
}
func getClientPort(ctx *gin.Context) string {
var port string
if setting.App.TrustedPortHeader == "" {
if setting.App.TrustedHeader != "" {
port = "unknown"
} else {
_, port, _ = net.SplitHostPort(ctx.Request.RemoteAddr)
}
} else {
port = ctx.GetHeader(setting.App.TrustedPortHeader)
if port == "" {
port = "unknown"
}
}
return port
}
func getClientPortAsString(ctx *gin.Context) {
_, port, _ := net.SplitHostPort(ctx.Request.RemoteAddr)
ctx.String(http.StatusOK, port+"\n")
ctx.String(http.StatusOK, getClientPort(ctx)+"\n")
}
func getAllAsString(ctx *gin.Context) {
output := "IP: " + ctx.ClientIP() + "\n"
_, port, _ := net.SplitHostPort(ctx.Request.RemoteAddr)
output += "Client Port: " + port + "\n"
output += "Client Port: " + getClientPort(ctx) + "\n"
r := service.Geo{IP: net.ParseIP(ctx.ClientIP())}
if record := r.LookUpCity(); record != nil {
@ -63,8 +78,8 @@ func getAllAsString(ctx *gin.Context) {
output += geoASNRecordToString(record) + "\n"
}
h := ctx.Request.Header
h["Host"] = []string{ctx.Request.Host}
h := httputils.GetHeadersWithoutTrustedHeaders(ctx)
h.Set("Host", ctx.Request.Host)
output += httputils.HeadersToSortedString(h)
ctx.String(http.StatusOK, output)
@ -83,11 +98,10 @@ func jsonOutput(ctx *gin.Context) JSONResponse {
version = 6
}
_, port, _ := net.SplitHostPort(ctx.Request.RemoteAddr)
return JSONResponse{
IP: ctx.ClientIP(),
IPVersion: version,
ClientPort: port,
ClientPort: getClientPort(ctx),
Country: cityRecord.Country.Names["en"],
CountryCode: cityRecord.Country.ISOCode,
City: cityRecord.City.Names["en"],
@ -98,6 +112,6 @@ func jsonOutput(ctx *gin.Context) JSONResponse {
ASN: asnRecord.AutonomousSystemNumber,
ASNOrganization: asnRecord.AutonomousSystemOrganization,
Host: ctx.Request.Host,
Headers: ctx.Request.Header,
Headers: httputils.GetHeadersWithoutTrustedHeaders(ctx),
}
}

View File

@ -6,6 +6,7 @@ import (
"net/http/httptest"
"testing"
"github.com/dcarrillo/whatismyip/internal/setting"
"github.com/stretchr/testify/assert"
)
@ -97,16 +98,76 @@ func TestHost(t *testing.T) {
}
func TestClientPort(t *testing.T) {
req, _ := http.NewRequest("GET", "/client-port", nil)
req.RemoteAddr = net.JoinHostPort(testIP.ipv4, "1000")
req.Header.Set(trustedHeader, testIP.ipv4)
type args struct {
params []string
headers map[string][]string
}
tests := []struct {
name string
args args
expected string
}{
{
name: "No trusted headers set",
expected: "1000\n",
},
{
name: "Trusted header only set",
args: args{
params: []string{
"-geoip2-city", "city",
"-geoip2-asn", "asn",
"-trusted-header", trustedHeader,
},
},
expected: "unknown\n",
},
{
name: "Trusted and port header set but not included in headers",
args: args{
params: []string{
"-geoip2-city", "city",
"-geoip2-asn", "asn",
"-trusted-header", trustedHeader,
"-trusted-port-header", trustedPortHeader,
},
},
expected: "unknown\n",
},
{
name: "Trusted and port header set and included in headers",
args: args{
params: []string{
"-geoip2-city", "city",
"-geoip2-asn", "asn",
"-trusted-header", trustedHeader,
"-trusted-port-header", trustedPortHeader,
},
headers: map[string][]string{
trustedHeader: {testIP.ipv4},
trustedPortHeader: {"1001"},
},
},
expected: "1001\n",
},
}
w := httptest.NewRecorder()
app.ServeHTTP(w, req)
for _, tt := range tests {
_, _ = setting.Setup(tt.args.params)
t.Run(tt.name, func(t *testing.T) {
req, _ := http.NewRequest("GET", "/client-port", nil)
req.RemoteAddr = net.JoinHostPort(testIP.ipv4, "1000")
req.Header = tt.args.headers
assert.Equal(t, 200, w.Code)
assert.Equal(t, contentType.text, w.Header().Get("Content-Type"))
assert.Equal(t, "1000\n", w.Body.String())
w := httptest.NewRecorder()
app.ServeHTTP(w, req)
assert.Equal(t, 200, w.Code)
assert.Equal(t, contentType.text, w.Header().Get("Content-Type"))
assert.Equal(t, tt.expected, w.Body.String())
t.Log(w.Header())
})
}
}
func TestNotFound(t *testing.T) {
@ -120,6 +181,15 @@ func TestNotFound(t *testing.T) {
}
func TestJSON(t *testing.T) {
_, _ = setting.Setup(
[]string{
"-geoip2-city", "city",
"-geoip2-asn", "asn",
"-trusted-header", trustedHeader,
"-trusted-port-header", trustedPortHeader,
},
)
type args struct {
ip string
}
@ -149,6 +219,7 @@ func TestJSON(t *testing.T) {
req.RemoteAddr = net.JoinHostPort(tt.args.ip, "1000")
req.Host = "test"
req.Header.Set(trustedHeader, tt.args.ip)
req.Header.Set(trustedPortHeader, "1001")
w := httptest.NewRecorder()
app.ServeHTTP(w, req)
@ -162,7 +233,7 @@ func TestJSON(t *testing.T) {
func TestAll(t *testing.T) {
expected := `IP: 81.2.69.192
Client Port: 1000
Client Port: 1001
City: London
Country: United Kingdom
Country Code: GB
@ -176,13 +247,21 @@ ASN Organization:
Header1: one
Host: test
X-Real-Ip: 81.2.69.192
`
_, _ = setting.Setup(
[]string{
"-geoip2-city", "city",
"-geoip2-asn", "asn",
"-trusted-header", trustedHeader,
"-trusted-port-header", trustedPortHeader,
},
)
req, _ := http.NewRequest("GET", "/all", nil)
req.RemoteAddr = net.JoinHostPort(testIP.ipv4, "1000")
req.Host = "test"
req.Header.Set(trustedHeader, testIP.ipv4)
req.Header.Set(trustedPortHeader, "1001")
req.Header.Set("Header1", "one")
w := httptest.NewRecorder()

View File

@ -10,15 +10,17 @@ import (
)
func getHeadersAsSortedString(ctx *gin.Context) {
h := ctx.Request.Header
h["Host"] = []string{ctx.Request.Host}
h := httputils.GetHeadersWithoutTrustedHeaders(ctx)
h.Set("Host", ctx.Request.Host)
ctx.String(http.StatusOK, httputils.HeadersToSortedString(h))
}
func getHeaderAsString(ctx *gin.Context) {
headers := httputils.GetHeadersWithoutTrustedHeaders(ctx)
h := ctx.Params.ByName("header")
if v := ctx.GetHeader(h); v != "" {
if v := headers.Get(ctx.Params.ByName("header")); v != "" {
ctx.String(http.StatusOK, template.HTMLEscapeString(v))
} else if strings.ToLower(h) == "host" {
ctx.String(http.StatusOK, template.HTMLEscapeString(ctx.Request.Host))

View File

@ -5,6 +5,7 @@ import (
"net/http/httptest"
"testing"
"github.com/dcarrillo/whatismyip/internal/setting"
"github.com/stretchr/testify/assert"
)
@ -26,13 +27,20 @@ Header2: value22
Header3: value3
Host:
`
_, _ = setting.Setup([]string{
"-geoip2-city", "city",
"-geoip2-asn", "asn",
"-trusted-header", trustedHeader,
"-trusted-port-header", trustedPortHeader,
})
req, _ := http.NewRequest("GET", "/headers", nil)
req.Header = map[string][]string{
"Header1": {"value1"},
"Header2": {"value21", "value22"},
"Header3": {"value3"},
}
req.Header.Set(trustedHeader, "1.1.1.1")
req.Header.Set(trustedPortHeader, "1025")
w := httptest.NewRecorder()
app.ServeHTTP(w, req)

54
router/port_scanner.go Normal file
View File

@ -0,0 +1,54 @@
package router
import (
"fmt"
"net"
"net/http"
"strconv"
"github.com/dcarrillo/whatismyip/service"
"github.com/gin-gonic/gin"
)
type JSONScanResponse struct {
IP string `json:"ip"`
Port int `json:"port"`
Reachable bool `json:"reachable"`
Reason string `json:"reason"`
}
func scanTCPPort(ctx *gin.Context) {
port, err := strconv.Atoi(ctx.Params.ByName("port"))
if err == nil && (port < 1 || port > 65535) {
err = fmt.Errorf("%d is not a valid port number", port)
}
if err != nil {
ctx.JSON(http.StatusBadRequest, JSONScanResponse{
Reason: err.Error(),
})
return
}
add := net.TCPAddr{
IP: net.ParseIP(ctx.ClientIP()),
Port: port,
}
scan := service.PortScanner{
Address: &add,
}
isOpen, err := scan.IsPortOpen()
reason := ""
if err != nil {
reason = err.Error()
}
response := JSONScanResponse{
IP: ctx.ClientIP(),
Port: port,
Reachable: isOpen,
Reason: reason,
}
ctx.JSON(http.StatusOK, response)
}

View File

@ -8,7 +8,6 @@ import (
"github.com/gin-gonic/gin"
)
// SetupTemplate reads and parses a template from file
func SetupTemplate(r *gin.Engine) {
if setting.App.TemplatePath == "" {
t, _ := template.New("home").Parse(home)
@ -19,9 +18,9 @@ func SetupTemplate(r *gin.Engine) {
}
}
// Setup defines the endpoints
func Setup(r *gin.Engine) {
r.GET("/", getRoot)
r.GET("/scan/tcp/:port", scanTCPPort)
r.GET("/client-port", getClientPortAsString)
r.GET("/geo", getGeoAsString)
r.GET("/geo/:field", getGeoAsString)

View File

@ -34,11 +34,17 @@ var (
text: "text/plain; charset=utf-8",
json: "application/json; charset=utf-8",
}
jsonIPv4 = `{"client_port":"1000","ip":"81.2.69.192","ip_version":4,"country":"United Kingdom","country_code":"GB","city":"London","latitude":51.5142,"longitude":-0.0931,"postal_code":"","time_zone":"Europe/London","asn":0,"asn_organization":"","host":"test","headers":{"X-Real-Ip":["81.2.69.192"]}}`
jsonIPv6 = `{"asn":3352, "asn_organization":"TELEFONICA DE ESPANA", "city":"", "client_port":"1000", "country":"", "country_code":"", "headers":{"X-Real-Ip":["2a02:9000::1"]}, "host":"test", "ip":"2a02:9000::1", "ip_version":6, "latitude":0, "longitude":0, "postal_code":"", "time_zone":""}`
jsonIPv4 = `{"client_port":"1001","ip":"81.2.69.192","ip_version":4,"country":"United Kingdom","country_code":"GB","city":"London","latitude":51.5142,"longitude":-0.0931,"postal_code":"","time_zone":"Europe/London","asn":0,"asn_organization":"","host":"test", "headers": {}}`
jsonIPv6 = `{"asn":3352, "asn_organization":"TELEFONICA DE ESPANA", "city":"", "client_port":"1001", "country":"", "country_code":"", "host":"test", "ip":"2a02:9000::1", "ip_version":6, "latitude":0, "longitude":0, "postal_code":"", "time_zone":"", "headers": {}}`
jsonDNSIPv4 = `{"dns":{"ip":"81.2.69.192","country":"United Kingdom","provider":""}}`
plainDNSIPv4 = "81.2.69.192 (United Kingdom / )\n"
)
const trustedHeader = "X-Real-IP"
const (
trustedHeader = "X-Real-IP"
trustedPortHeader = "X-Real-Port"
domain = "dns.example.com"
)
func TestMain(m *testing.M) {
app = gin.Default()

48
server/dns.go Normal file
View File

@ -0,0 +1,48 @@
package server
import (
"context"
"log"
"strconv"
"github.com/miekg/dns"
)
const port = 53
type DNS struct {
server *dns.Server
handler *dns.Handler
ctx context.Context
}
func NewDNSServer(ctx context.Context, handler dns.Handler) *DNS {
return &DNS{
handler: &handler,
ctx: ctx,
}
}
func (d *DNS) Start() {
d.server = &dns.Server{
Addr: ":" + strconv.Itoa(port),
Net: "udp",
Handler: *d.handler,
// UDPSize: 65535,
// ReusePort: true,
}
log.Printf("Starting DNS server listening on :%d (udp)", port)
go func() {
if err := d.server.ListenAndServe(); err != nil {
log.Fatal(err)
}
}()
}
func (d *DNS) Stop() {
log.Printf("Stopping DNS server...")
if err := d.server.Shutdown(); err != nil {
log.Printf("DNS server forced to shutdown: %s", err)
}
}

55
server/quic.go Normal file
View File

@ -0,0 +1,55 @@
package server
import (
"context"
"errors"
"log"
"net/http"
"github.com/dcarrillo/whatismyip/internal/setting"
"github.com/quic-go/quic-go/http3"
)
type Quic struct {
server *http3.Server
tlsServer *TLS
ctx context.Context
}
func NewQuicServer(ctx context.Context, tlsServer *TLS) *Quic {
return &Quic{
tlsServer: tlsServer,
ctx: ctx,
}
}
func (q *Quic) Start() {
q.server = &http3.Server{
Addr: setting.App.TLSAddress,
Handler: q.tlsServer.server.Handler,
}
parentHandler := q.tlsServer.server.Handler
q.tlsServer.server.Handler = http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {
if err := q.server.SetQUICHeaders(rw.Header()); err != nil {
log.Fatal(err)
}
parentHandler.ServeHTTP(rw, req)
})
log.Printf("Starting QUIC server listening on %s (udp)", setting.App.TLSAddress)
go func() {
if err := q.server.ListenAndServeTLS(setting.App.TLSCrtPath, setting.App.TLSKeyPath); err != nil &&
!errors.Is(err, http.ErrServerClosed) {
log.Fatal(err)
}
}()
}
func (q *Quic) Stop() {
log.Printf("Stopping QUIC server...")
if err := q.server.Close(); err != nil {
log.Printf("QUIC server forced to shutdown")
}
}

62
server/server.go Normal file
View File

@ -0,0 +1,62 @@
package server
import (
"log"
"os"
"os/signal"
"syscall"
"github.com/dcarrillo/whatismyip/internal/setting"
"github.com/dcarrillo/whatismyip/models"
)
type Server interface {
Start()
Stop()
}
type Manager struct {
servers []Server
}
func Setup(servers []Server) *Manager {
return &Manager{
servers: servers,
}
}
func (m *Manager) Run() {
m.start()
models.Setup(setting.App.GeodbPath.City, setting.App.GeodbPath.ASN)
signalChan := make(chan os.Signal, len(m.servers))
signal.Notify(signalChan, syscall.SIGHUP, syscall.SIGINT, syscall.SIGTERM)
var s os.Signal
for {
s = <-signalChan
if s == syscall.SIGHUP {
m.stop()
models.CloseDBs()
models.Setup(setting.App.GeodbPath.City, setting.App.GeodbPath.ASN)
m.start()
} else {
log.Printf("Shutting down...")
m.stop()
models.CloseDBs()
break
}
}
}
func (m *Manager) start() {
for _, s := range m.servers {
s.Start()
}
}
func (m *Manager) stop() {
for _, s := range m.servers {
s.Stop()
}
}

46
server/tcp.go Normal file
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@ -0,0 +1,46 @@
package server
import (
"context"
"errors"
"log"
"net/http"
"github.com/dcarrillo/whatismyip/internal/setting"
)
type TCP struct {
server *http.Server
handler *http.Handler
ctx context.Context
}
func NewTCPServer(ctx context.Context, handler *http.Handler) *TCP {
return &TCP{
handler: handler,
ctx: ctx,
}
}
func (t *TCP) Start() {
t.server = &http.Server{
Addr: setting.App.BindAddress,
Handler: *t.handler,
ReadTimeout: setting.App.Server.ReadTimeout,
WriteTimeout: setting.App.Server.WriteTimeout,
}
log.Printf("Starting TCP server listening on %s", setting.App.BindAddress)
go func() {
if err := t.server.ListenAndServe(); err != nil && !errors.Is(err, http.ErrServerClosed) {
log.Fatal(err)
}
}()
}
func (t *TCP) Stop() {
log.Printf("Stopping TCP server...")
if err := t.server.Shutdown(t.ctx); err != nil {
log.Printf("TCP server forced to shutdown: %s", err)
}
}

47
server/tls.go Normal file
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package server
import (
"context"
"errors"
"log"
"net/http"
"github.com/dcarrillo/whatismyip/internal/setting"
)
type TLS struct {
server *http.Server
handler *http.Handler
ctx context.Context
}
func NewTLSServer(ctx context.Context, handler *http.Handler) *TLS {
return &TLS{
handler: handler,
ctx: ctx,
}
}
func (t *TLS) Start() {
t.server = &http.Server{
Addr: setting.App.TLSAddress,
Handler: *t.handler,
ReadTimeout: setting.App.Server.ReadTimeout,
WriteTimeout: setting.App.Server.WriteTimeout,
}
log.Printf("Starting TLS server listening on %s", setting.App.TLSAddress)
go func() {
if err := t.server.ListenAndServeTLS(setting.App.TLSCrtPath, setting.App.TLSKeyPath); err != nil &&
!errors.Is(err, http.ErrServerClosed) {
log.Fatal(err)
}
}()
}
func (t *TLS) Stop() {
log.Printf("Stopping TLS server...")
if err := t.server.Shutdown(t.ctx); err != nil {
log.Printf("TLS server forced to shutdown: %s", err)
}
}

24
service/port_scanner.go Normal file
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package service
import (
"net"
"time"
)
const scannerTimeOut = 3 * time.Second
type PortScanner struct {
Address net.Addr
}
func (p *PortScanner) IsPortOpen() (bool, error) {
conn, err := net.DialTimeout(p.Address.Network(), p.Address.String(), scannerTimeOut)
if err != nil {
return false, err
}
if conn != nil {
defer conn.Close()
}
return true, nil
}

15
test/Dockerfile Normal file
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FROM golang:1.22-alpine as builder
ARG ARG_VERSION
ENV VERSION $ARG_VERSION
WORKDIR /app
COPY . .
FROM builder AS build-test-app
RUN CGO_ENABLED=0 \
go build -ldflags="-s -w" -o whatismyip ./cmd
FROM scratch AS test
COPY --from=build-test-app /app/whatismyip /usr/bin/
ENTRYPOINT ["whatismyip"]

10
test/resolver.yml Normal file
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---
domain: dns.example.com
redirect_port: ":8000"
resource_records:
- "1800 IN SOA xns.example.com. hostmaster.example.com. 1 10000 2400 604800 1800"
- "3600 IN NS xns.example.com."
ipv4:
- "127.0.0.2"
ipv6:
- "aaa:aaa:aaa:aaaa::1"