├── .gitignore ├── go.mod ├── .traefik.yml ├── Makefile ├── blockpath.go ├── .github └── workflows │ ├── go-cross.yml │ └── main.yml ├── README.md ├── .golangci.yml ├── blockpath_test.go └── LICENSE /.gitignore: -------------------------------------------------------------------------------- 1 | .idea/ 2 | .DS_Store 3 | -------------------------------------------------------------------------------- /go.mod: -------------------------------------------------------------------------------- 1 | module github.com/traefik/plugin-blockpath 2 | 3 | go 1.15 4 | -------------------------------------------------------------------------------- /.traefik.yml: -------------------------------------------------------------------------------- 1 | displayName: Block Path 2 | summary: Blocks HTTP requests with a path matching the configured regex. 3 | type: middleware 4 | import: github.com/traefik/plugin-blockpath 5 | compatibility: TODO 6 | testData: 7 | Regex: 8 | - "^/foo(.*)" 9 | -------------------------------------------------------------------------------- /Makefile: -------------------------------------------------------------------------------- 1 | .PHONY: lint test vendor clean 2 | 3 | export GO111MODULE=on 4 | 5 | default: lint test 6 | 7 | lint: 8 | golangci-lint run 9 | 10 | test: 11 | go test -v -cover ./... 12 | 13 | yaegi_test: 14 | yaegi test -v . 15 | 16 | vendor: 17 | go mod vendor 18 | 19 | clean: 20 | rm -rf ./vendor -------------------------------------------------------------------------------- /blockpath.go: -------------------------------------------------------------------------------- 1 | // Package plugin_blockpath a plugin to block a path. 2 | package plugin_blockpath 3 | 4 | import ( 5 | "context" 6 | "fmt" 7 | "net/http" 8 | "regexp" 9 | ) 10 | 11 | // Config holds the plugin configuration. 12 | type Config struct { 13 | Regex []string `json:"regex,omitempty"` 14 | } 15 | 16 | // CreateConfig creates and initializes the plugin configuration. 17 | func CreateConfig() *Config { 18 | return &Config{} 19 | } 20 | 21 | type blockPath struct { 22 | name string 23 | next http.Handler 24 | regexps []*regexp.Regexp 25 | } 26 | 27 | // New creates and returns a plugin instance. 28 | func New(_ context.Context, next http.Handler, config *Config, name string) (http.Handler, error) { 29 | regexps := make([]*regexp.Regexp, len(config.Regex)) 30 | 31 | for i, regex := range config.Regex { 32 | re, err := regexp.Compile(regex) 33 | if err != nil { 34 | return nil, fmt.Errorf("error compiling regex %q: %w", regex, err) 35 | } 36 | 37 | regexps[i] = re 38 | } 39 | 40 | return &blockPath{ 41 | name: name, 42 | next: next, 43 | regexps: regexps, 44 | }, nil 45 | } 46 | 47 | func (b *blockPath) ServeHTTP(rw http.ResponseWriter, req *http.Request) { 48 | currentPath := req.URL.EscapedPath() 49 | 50 | for _, re := range b.regexps { 51 | if re.MatchString(currentPath) { 52 | rw.WriteHeader(http.StatusForbidden) 53 | return 54 | } 55 | } 56 | 57 | b.next.ServeHTTP(rw, req) 58 | } 59 | -------------------------------------------------------------------------------- /.github/workflows/go-cross.yml: -------------------------------------------------------------------------------- 1 | name: Go Matrix 2 | on: [push, pull_request] 3 | 4 | jobs: 5 | 6 | cross: 7 | name: Go 8 | runs-on: ${{ matrix.os }} 9 | env: 10 | CGO_ENABLED: 0 11 | 12 | strategy: 13 | matrix: 14 | go-version: [ 1.16, 1.x ] 15 | os: [ubuntu-latest, macos-latest, windows-latest] 16 | 17 | steps: 18 | # https://github.com/marketplace/actions/setup-go-environment 19 | - name: Set up Go ${{ matrix.go-version }} 20 | uses: actions/setup-go@v2 21 | with: 22 | go-version: ${{ matrix.go-version }} 23 | 24 | # https://github.com/marketplace/actions/checkout 25 | - name: Checkout code 26 | uses: actions/checkout@v2 27 | 28 | # https://github.com/marketplace/actions/cache 29 | - name: Cache Go modules 30 | uses: actions/cache@v2 31 | with: 32 | # In order: 33 | # * Module download cache 34 | # * Build cache (Linux) 35 | # * Build cache (Mac) 36 | # * Build cache (Windows) 37 | path: | 38 | ~/go/pkg/mod 39 | ~/.cache/go-build 40 | ~/Library/Caches/go-build 41 | %LocalAppData%\go-build 42 | key: ${{ runner.os }}-${{ matrix.go-version }}-go-${{ hashFiles('**/go.sum') }} 43 | restore-keys: | 44 | ${{ runner.os }}-${{ matrix.go-version }}-go- 45 | 46 | - name: Test 47 | run: go test -v -cover ./... 48 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # Block Path 2 | 3 | [![Build Status](https://github.com/traefik/plugin-blockpath/workflows/Main/badge.svg?branch=master)](https://github.com/traefik/plugin-blockpath/actions) 4 | 5 | Block Path is a middleware plugin for [Traefik](https://github.com/traefik/traefik) which sends an HTTP `403 Forbidden` 6 | response when the requested HTTP path matches one the configured [regular expressions](https://github.com/google/re2/wiki/Syntax). 7 | 8 | ## Configuration 9 | 10 | ## Static 11 | 12 | ```toml 13 | [pilot] 14 | token="xxx" 15 | 16 | [experimental.plugins.blockpath] 17 | modulename = "github.com/traefik/plugin-blockpath" 18 | version = "v0.2.1" 19 | ``` 20 | 21 | ## Dynamic 22 | 23 | To configure the `Block Path` plugin you should create a [middleware](https://docs.traefik.io/middlewares/overview/) in 24 | your dynamic configuration as explained [here](https://docs.traefik.io/middlewares/overview/). The following example creates 25 | and uses the `blockpath` middleware plugin to block all HTTP requests with a path starting with `/foo`. 26 | 27 | ```toml 28 | [http.routers] 29 | [http.routers.my-router] 30 | rule = "Host(`localhost`)" 31 | middlewares = ["block-foo"] 32 | service = "my-service" 33 | 34 | # Block all paths starting with /foo 35 | [http.middlewares] 36 | [http.middlewares.block-foo.plugin.blockpath] 37 | regex = ["^/foo(.*)"] 38 | 39 | [http.services] 40 | [http.services.my-service] 41 | [http.services.my-service.loadBalancer] 42 | [[http.services.my-service.loadBalancer.servers]] 43 | url = "http://127.0.0.1" 44 | ``` 45 | -------------------------------------------------------------------------------- /.golangci.yml: -------------------------------------------------------------------------------- 1 | run: 2 | timeout: 5m 3 | skip-files: [ ] 4 | skip-dirs: [ ] 5 | 6 | linters-settings: 7 | govet: 8 | enable-all: true 9 | disable: 10 | - fieldalignment 11 | gocyclo: 12 | min-complexity: 15 13 | maligned: 14 | suggest-new: true 15 | goconst: 16 | min-len: 5 17 | min-occurrences: 3 18 | misspell: 19 | locale: US 20 | funlen: 21 | lines: -1 22 | statements: 40 23 | godox: 24 | keywords: 25 | - FIXME 26 | gofumpt: 27 | extra-rules: true 28 | depguard: 29 | list-type: blacklist 30 | include-go-root: false 31 | packages: 32 | - github.com/sirupsen/logrus 33 | - github.com/pkg/errors 34 | gocritic: 35 | enabled-tags: 36 | - diagnostic 37 | - style 38 | - performance 39 | disabled-checks: 40 | - sloppyReassign 41 | - rangeValCopy 42 | - octalLiteral 43 | - paramTypeCombine # already handle by gofumpt.extra-rules 44 | settings: 45 | hugeParam: 46 | sizeThreshold: 100 47 | 48 | linters: 49 | enable-all: true 50 | disable: 51 | - maligned # deprecated 52 | - interfacer # deprecated 53 | - scopelint # deprecated 54 | - golint # deprecated 55 | - sqlclosecheck # not relevant (SQL) 56 | - rowserrcheck # not relevant (SQL) 57 | - cyclop # duplicate of gocyclo 58 | - lll 59 | - dupl 60 | - wsl 61 | - nlreturn 62 | - gomnd 63 | - goerr113 64 | - wrapcheck 65 | - bodyclose 66 | - exhaustive 67 | - exhaustivestruct 68 | - testpackage 69 | - tparallel 70 | - paralleltest 71 | - prealloc 72 | - ifshort 73 | - forcetypeassert 74 | - noctx 75 | 76 | issues: 77 | exclude-use-default: false 78 | max-per-linter: 0 79 | max-same-issues: 0 80 | exclude: 81 | - "don't use an underscore in package name" 82 | - "ST1003: should not use underscores in package names" 83 | exclude-rules: 84 | - path: .*_test.go 85 | linters: 86 | - funlen 87 | -------------------------------------------------------------------------------- /.github/workflows/main.yml: -------------------------------------------------------------------------------- 1 | name: Main 2 | 3 | on: 4 | push: 5 | branches: 6 | - master 7 | tags: 8 | - v* 9 | pull_request: 10 | 11 | jobs: 12 | 13 | main: 14 | name: Main Process 15 | runs-on: ubuntu-latest 16 | env: 17 | GO_VERSION: 1.15 18 | GOLANGCI_LINT_VERSION: v1.41.1 19 | YAEGI_VERSION: v0.9.20 20 | CGO_ENABLED: 0 21 | defaults: 22 | run: 23 | working-directory: ${{ github.workspace }}/go/src/github.com/${{ github.repository }} 24 | 25 | steps: 26 | 27 | # https://github.com/marketplace/actions/setup-go-environment 28 | - name: Set up Go ${{ env.GO_VERSION }} 29 | uses: actions/setup-go@v2 30 | with: 31 | go-version: ${{ env.GO_VERSION }} 32 | 33 | # https://github.com/marketplace/actions/checkout 34 | - name: Check out code 35 | uses: actions/checkout@v2 36 | with: 37 | path: go/src/github.com/${{ github.repository }} 38 | fetch-depth: 0 39 | 40 | # https://github.com/marketplace/actions/cache 41 | - name: Cache Go modules 42 | uses: actions/cache@v2 43 | with: 44 | path: ${{ github.workspace }}/go/pkg/mod 45 | key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }} 46 | restore-keys: | 47 | ${{ runner.os }}-go- 48 | 49 | # https://golangci-lint.run/usage/install#other-ci 50 | - name: Install golangci-lint ${{ env.GOLANGCI_LINT_VERSION }} 51 | run: curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin ${GOLANGCI_LINT_VERSION} 52 | 53 | - name: Install Yaegi ${{ env.YAEGI_VERSION }} 54 | run: curl -sfL https://raw.githubusercontent.com/traefik/yaegi/master/install.sh | bash -s -- -b $(go env GOPATH)/bin ${YAEGI_VERSION} 55 | 56 | - name: Setup GOPATH 57 | run: go env -w GOPATH=${{ github.workspace }}/go 58 | 59 | - name: Check and get dependencies 60 | run: | 61 | go mod tidy 62 | git diff --exit-code go.mod 63 | # git diff --exit-code go.sum 64 | go mod download 65 | go mod vendor 66 | # git diff --exit-code ./vendor/ 67 | 68 | - name: Lint and Tests 69 | run: make 70 | 71 | - name: Run tests with Yaegi 72 | run: make yaegi_test 73 | env: 74 | GOPATH: ${{ github.workspace }}/go 75 | -------------------------------------------------------------------------------- /blockpath_test.go: -------------------------------------------------------------------------------- 1 | package plugin_blockpath 2 | 3 | import ( 4 | "context" 5 | "fmt" 6 | "net/http" 7 | "net/http/httptest" 8 | "testing" 9 | ) 10 | 11 | func TestNew(t *testing.T) { 12 | tests := []struct { 13 | desc string 14 | regexps []string 15 | expErr bool 16 | }{ 17 | { 18 | desc: "should return no error", 19 | regexps: []string{`^/foo/(.*)`}, 20 | expErr: false, 21 | }, 22 | { 23 | desc: "should return an error", 24 | regexps: []string{"*"}, 25 | expErr: true, 26 | }, 27 | } 28 | 29 | for _, test := range tests { 30 | t.Run(test.desc, func(t *testing.T) { 31 | cfg := &Config{ 32 | Regex: test.regexps, 33 | } 34 | 35 | if _, err := New(context.Background(), nil, cfg, "name"); test.expErr && err == nil { 36 | t.Errorf("expected error on bad regexp format") 37 | } 38 | }) 39 | } 40 | } 41 | 42 | func TestServeHTTP(t *testing.T) { 43 | tests := []struct { 44 | desc string 45 | regexps []string 46 | reqPath string 47 | expNextCall bool 48 | expStatusCode int 49 | }{ 50 | { 51 | desc: "should return forbidden status", 52 | regexps: []string{"/test"}, 53 | reqPath: "/test", 54 | expNextCall: false, 55 | expStatusCode: http.StatusForbidden, 56 | }, 57 | { 58 | desc: "should return forbidden status", 59 | regexps: []string{"/test", "/toto"}, 60 | reqPath: "/toto", 61 | expNextCall: false, 62 | expStatusCode: http.StatusForbidden, 63 | }, 64 | { 65 | desc: "should return ok status", 66 | regexps: []string{"/test", "/toto"}, 67 | reqPath: "/plop", 68 | expNextCall: true, 69 | expStatusCode: http.StatusOK, 70 | }, 71 | { 72 | desc: "should return ok status", 73 | reqPath: "/test", 74 | expNextCall: true, 75 | expStatusCode: http.StatusOK, 76 | }, 77 | { 78 | desc: "should return forbidden status", 79 | regexps: []string{`^/bar(.*)`}, 80 | reqPath: "/bar/foo", 81 | expNextCall: false, 82 | expStatusCode: http.StatusForbidden, 83 | }, 84 | { 85 | desc: "should return forbidden status", 86 | regexps: []string{`^/bar(.*)`}, 87 | reqPath: "/foo/bar", 88 | expNextCall: true, 89 | expStatusCode: http.StatusOK, 90 | }, 91 | } 92 | 93 | for _, test := range tests { 94 | t.Run(test.desc, func(t *testing.T) { 95 | cfg := &Config{ 96 | Regex: test.regexps, 97 | } 98 | 99 | nextCall := false 100 | next := http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) { 101 | nextCall = true 102 | }) 103 | 104 | handler, err := New(context.Background(), next, cfg, "blockpath") 105 | if err != nil { 106 | t.Fatal(err) 107 | } 108 | 109 | recorder := httptest.NewRecorder() 110 | 111 | url := fmt.Sprintf("http://localhost%s", test.reqPath) 112 | req := httptest.NewRequest(http.MethodGet, url, nil) 113 | 114 | handler.ServeHTTP(recorder, req) 115 | 116 | if nextCall != test.expNextCall { 117 | t.Errorf("next handler should not be called") 118 | } 119 | 120 | if recorder.Result().StatusCode != test.expStatusCode { 121 | t.Errorf("got status code %d, want %d", recorder.Code, test.expStatusCode) 122 | } 123 | }) 124 | } 125 | } 126 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. Definitions. 8 | 9 | "License" shall mean the terms and conditions for use, reproduction, 10 | and distribution as defined by Sections 1 through 9 of this document. 11 | 12 | "Licensor" shall mean the copyright owner or entity authorized by 13 | the copyright owner that is granting the License. 14 | 15 | "Legal Entity" shall mean the union of the acting entity and all 16 | other entities that control, are controlled by, or are under common 17 | control with that entity. For the purposes of this definition, 18 | "control" means (i) the power, direct or indirect, to cause the 19 | direction or management of such entity, whether by contract or 20 | otherwise, or (ii) ownership of fifty percent (50%) or more of the 21 | outstanding shares, or (iii) beneficial ownership of such entity. 22 | 23 | "You" (or "Your") shall mean an individual or Legal Entity 24 | exercising permissions granted by this License. 25 | 26 | "Source" form shall mean the preferred form for making modifications, 27 | including but not limited to software source code, documentation 28 | source, and configuration files. 29 | 30 | "Object" form shall mean any form resulting from mechanical 31 | transformation or translation of a Source form, including but 32 | not limited to compiled object code, generated documentation, 33 | and conversions to other media types. 34 | 35 | "Work" shall mean the work of authorship, whether in Source or 36 | Object form, made available under the License, as indicated by a 37 | copyright notice that is included in or attached to the work 38 | (an example is provided in the Appendix below). 39 | 40 | "Derivative Works" shall mean any work, whether in Source or Object 41 | form, that is based on (or derived from) the Work and for which the 42 | editorial revisions, annotations, elaborations, or other modifications 43 | represent, as a whole, an original work of authorship. For the purposes 44 | of this License, Derivative Works shall not include works that remain 45 | separable from, or merely link (or bind by name) to the interfaces of, 46 | the Work and Derivative Works thereof. 47 | 48 | "Contribution" shall mean any work of authorship, including 49 | the original version of the Work and any modifications or additions 50 | to that Work or Derivative Works thereof, that is intentionally 51 | submitted to Licensor for inclusion in the Work by the copyright owner 52 | or by an individual or Legal Entity authorized to submit on behalf of 53 | the copyright owner. For the purposes of this definition, "submitted" 54 | means any form of electronic, verbal, or written communication sent 55 | to the Licensor or its representatives, including but not limited to 56 | communication on electronic mailing lists, source code control systems, 57 | and issue tracking systems that are managed by, or on behalf of, the 58 | Licensor for the purpose of discussing and improving the Work, but 59 | excluding communication that is conspicuously marked or otherwise 60 | designated in writing by the copyright owner as "Not a Contribution." 61 | 62 | "Contributor" shall mean Licensor and any individual or Legal Entity 63 | on behalf of whom a Contribution has been received by Licensor and 64 | subsequently incorporated within the Work. 65 | 66 | 2. Grant of Copyright License. Subject to the terms and conditions of 67 | this License, each Contributor hereby grants to You a perpetual, 68 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 69 | copyright license to reproduce, prepare Derivative Works of, 70 | publicly display, publicly perform, sublicense, and distribute the 71 | Work and such Derivative Works in Source or Object form. 72 | 73 | 3. Grant of Patent License. Subject to the terms and conditions of 74 | this License, each Contributor hereby grants to You a perpetual, 75 | worldwide, non-exclusive, no-charge, royalty-free, irrevocable 76 | (except as stated in this section) patent license to make, have made, 77 | use, offer to sell, sell, import, and otherwise transfer the Work, 78 | where such license applies only to those patent claims licensable 79 | by such Contributor that are necessarily infringed by their 80 | Contribution(s) alone or by combination of their Contribution(s) 81 | with the Work to which such Contribution(s) was submitted. If You 82 | institute patent litigation against any entity (including a 83 | cross-claim or counterclaim in a lawsuit) alleging that the Work 84 | or a Contribution incorporated within the Work constitutes direct 85 | or contributory patent infringement, then any patent licenses 86 | granted to You under this License for that Work shall terminate 87 | as of the date such litigation is filed. 88 | 89 | 4. Redistribution. You may reproduce and distribute copies of the 90 | Work or Derivative Works thereof in any medium, with or without 91 | modifications, and in Source or Object form, provided that You 92 | meet the following conditions: 93 | 94 | (a) You must give any other recipients of the Work or 95 | Derivative Works a copy of this License; and 96 | 97 | (b) You must cause any modified files to carry prominent notices 98 | stating that You changed the files; and 99 | 100 | (c) You must retain, in the Source form of any Derivative Works 101 | that You distribute, all copyright, patent, trademark, and 102 | attribution notices from the Source form of the Work, 103 | excluding those notices that do not pertain to any part of 104 | the Derivative Works; and 105 | 106 | (d) If the Work includes a "NOTICE" text file as part of its 107 | distribution, then any Derivative Works that You distribute must 108 | include a readable copy of the attribution notices contained 109 | within such NOTICE file, excluding those notices that do not 110 | pertain to any part of the Derivative Works, in at least one 111 | of the following places: within a NOTICE text file distributed 112 | as part of the Derivative Works; within the Source form or 113 | documentation, if provided along with the Derivative Works; or, 114 | within a display generated by the Derivative Works, if and 115 | wherever such third-party notices normally appear. The contents 116 | of the NOTICE file are for informational purposes only and 117 | do not modify the License. You may add Your own attribution 118 | notices within Derivative Works that You distribute, alongside 119 | or as an addendum to the NOTICE text from the Work, provided 120 | that such additional attribution notices cannot be construed 121 | as modifying the License. 122 | 123 | You may add Your own copyright statement to Your modifications and 124 | may provide additional or different license terms and conditions 125 | for use, reproduction, or distribution of Your modifications, or 126 | for any such Derivative Works as a whole, provided Your use, 127 | reproduction, and distribution of the Work otherwise complies with 128 | the conditions stated in this License. 129 | 130 | 5. Submission of Contributions. Unless You explicitly state otherwise, 131 | any Contribution intentionally submitted for inclusion in the Work 132 | by You to the Licensor shall be under the terms and conditions of 133 | this License, without any additional terms or conditions. 134 | Notwithstanding the above, nothing herein shall supersede or modify 135 | the terms of any separate license agreement you may have executed 136 | with Licensor regarding such Contributions. 137 | 138 | 6. Trademarks. This License does not grant permission to use the trade 139 | names, trademarks, service marks, or product names of the Licensor, 140 | except as required for reasonable and customary use in describing the 141 | origin of the Work and reproducing the content of the NOTICE file. 142 | 143 | 7. Disclaimer of Warranty. Unless required by applicable law or 144 | agreed to in writing, Licensor provides the Work (and each 145 | Contributor provides its Contributions) on an "AS IS" BASIS, 146 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or 147 | implied, including, without limitation, any warranties or conditions 148 | of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A 149 | PARTICULAR PURPOSE. You are solely responsible for determining the 150 | appropriateness of using or redistributing the Work and assume any 151 | risks associated with Your exercise of permissions under this License. 152 | 153 | 8. Limitation of Liability. In no event and under no legal theory, 154 | whether in tort (including negligence), contract, or otherwise, 155 | unless required by applicable law (such as deliberate and grossly 156 | negligent acts) or agreed to in writing, shall any Contributor be 157 | liable to You for damages, including any direct, indirect, special, 158 | incidental, or consequential damages of any character arising as a 159 | result of this License or out of the use or inability to use the 160 | Work (including but not limited to damages for loss of goodwill, 161 | work stoppage, computer failure or malfunction, or any and all 162 | other commercial damages or losses), even if such Contributor 163 | has been advised of the possibility of such damages. 164 | 165 | 9. Accepting Warranty or Additional Liability. While redistributing 166 | the Work or Derivative Works thereof, You may choose to offer, 167 | and charge a fee for, acceptance of support, warranty, indemnity, 168 | or other liability obligations and/or rights consistent with this 169 | License. However, in accepting such obligations, You may act only 170 | on Your own behalf and on Your sole responsibility, not on behalf 171 | of any other Contributor, and only if You agree to indemnify, 172 | defend, and hold each Contributor harmless for any liability 173 | incurred by, or claims asserted against, such Contributor by reason 174 | of your accepting any such warranty or additional liability. 175 | 176 | END OF TERMS AND CONDITIONS 177 | 178 | APPENDIX: How to apply the Apache License to your work. 179 | 180 | To apply the Apache License to your work, attach the following 181 | boilerplate notice, with the fields enclosed by brackets "[]" 182 | replaced with your own identifying information. (Don't include 183 | the brackets!) The text should be enclosed in the appropriate 184 | comment syntax for the file format. We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright 2020 Containous SAS 190 | Copyright 2020 Traefik Labs 191 | 192 | Licensed under the Apache License, Version 2.0 (the "License"); 193 | you may not use this file except in compliance with the License. 194 | You may obtain a copy of the License at 195 | 196 | http://www.apache.org/licenses/LICENSE-2.0 197 | 198 | Unless required by applicable law or agreed to in writing, software 199 | distributed under the License is distributed on an "AS IS" BASIS, 200 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 201 | See the License for the specific language governing permissions and 202 | limitations under the License. 203 | --------------------------------------------------------------------------------