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feat: replace stackoverflow and exchange links
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httpjamesm
parent
42ad68fe34
commit
596ffaa02a
4 changed files with 100 additions and 0 deletions
4
go.mod
4
go.mod
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@ -13,6 +13,7 @@ require (
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require (
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github.com/andybalholm/cascadia v1.3.1 // indirect
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github.com/davecgh/go-spew v1.1.1 // indirect
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github.com/dlclark/regexp2 v1.7.0 // indirect
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github.com/gin-contrib/sse v0.1.0 // indirect
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github.com/go-playground/locales v0.14.0 // indirect
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@ -25,6 +26,8 @@ require (
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github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
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github.com/modern-go/reflect2 v1.0.2 // indirect
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github.com/pelletier/go-toml/v2 v2.0.6 // indirect
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github.com/pmezard/go-difflib v1.0.0 // indirect
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github.com/stretchr/testify v1.9.0 // indirect
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github.com/ugorji/go/codec v1.2.8 // indirect
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golang.org/x/crypto v0.4.0 // indirect
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golang.org/x/net v0.7.0 // indirect
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@ -32,4 +35,5 @@ require (
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golang.org/x/text v0.7.0 // indirect
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google.golang.org/protobuf v1.28.1 // indirect
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gopkg.in/yaml.v2 v2.4.0 // indirect
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gopkg.in/yaml.v3 v3.0.1 // indirect
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)
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2
go.sum
2
go.sum
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@ -72,6 +72,8 @@ github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
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github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
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github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
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github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
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github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
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github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
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github.com/ugorji/go/codec v1.2.8 h1:sgBJS6COt0b/P40VouWKdseidkDgHxYGm0SAglUHfP0=
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github.com/ugorji/go/codec v1.2.8/go.mod h1:UNopzCgEMSXjBc6AOMqYvWC1ktqTAfzJZUZgYf6w6lg=
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golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
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45
src/utils/links.go
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45
src/utils/links.go
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@ -0,0 +1,45 @@
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package utils
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import (
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"net/url"
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"regexp"
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"strings"
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)
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// stackOverflowLinkQualifierRegex matches all anchor elements that meet the following conditions:
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// * must be an anchor element
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// * the anchor element must have a pathname beginning with /q or /questions
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// * if there is a host, it must be stackoverflow.com or a subdomain
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var stackOverflowLinkQualifierRegex = regexp.MustCompile(`<a\s[^>]*href="(?:https?://(?:www\.)?(?:\w+\.)*(?:stackoverflow|stackexchange)\.com)?/(?:q|questions)/[^"]*"[^>]*>.*?</a>`)
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func ReplaceStackOverflowLinks(html string) string {
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return stackOverflowLinkQualifierRegex.ReplaceAllStringFunc(html, func(match string) string {
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// Extract the href attribute value from the anchor tag
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hrefRegex := regexp.MustCompile(`href="([^"]*)"`)
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hrefMatch := hrefRegex.FindStringSubmatch(match)
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if len(hrefMatch) < 2 {
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return match
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}
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href := hrefMatch[1]
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// Parse the URL
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url, err := url.Parse(href)
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if err != nil {
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return match
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}
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newUrl := url.String()
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// Check if the host is a subdomain
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parts := strings.Split(url.Host, ".")
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if len(parts) > 2 {
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// Prepend the subdomain to the path
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url.Path = "/exchange/" + parts[0] + url.Path
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newUrl = url.Path + url.RawQuery + url.Fragment
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}
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// Replace the href attribute value in the anchor tag
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return strings.Replace(match, hrefMatch[1], newUrl, 1)
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})
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}
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49
src/utils/links_test.go
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49
src/utils/links_test.go
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@ -0,0 +1,49 @@
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package utils
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import (
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"fmt"
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"github.com/stretchr/testify/assert"
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"strings"
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"testing"
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)
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var sampleInput = `<div class="d-flex fd-column fw-nowrap">
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<div class="d-flex fw-nowrap">
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<div class="flex--item wmn0 fl1 lh-lg">
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<div class="flex--item fl1 lh-lg">
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<div>
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<b>This question already has answers here</b>:
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</div>
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</div>
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</div>
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</div>
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<div class="flex--item mb0 mt4">
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<a href="/questions/55083952/is-it-possible-to-populate-a-large-set-at-compile-time" dir="ltr">Is it possible to populate a large set at compile time?</a>
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<span class="question-originals-answer-count">
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(3 answers)
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</span>
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</div>
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<div class="flex--item mb0 mt4">
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<a href="/questions/27221504/how-can-you-make-a-safe-static-singleton-in-rust" dir="ltr">How can you make a safe static singleton in Rust?</a>
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<span class="question-originals-answer-count">
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(5 answers)
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</span>
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</div>
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<div class="flex--item mb0 mt4">
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<a href="https://security.stackexchange.com/questions/25371/brute-force-an-ssh-login-that-has-only-a-4-letter-password" dir="ltr">Brute-force an SSH-login that has only a 4-letter password</a>
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<span class="question-originals-answer-count">
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(9 answers)
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</span>
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</div>
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<div class="flex--item mb0 mt8">Closed <span title="2020-01-29 14:28:42Z" class="relativetime">4 years ago</span>.</div>
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</div>`
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func TestReplaceStackOverflowLinks(t *testing.T) {
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replacedLinks := ReplaceStackOverflowLinks(sampleInput)
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fmt.Println(replacedLinks)
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assert.False(t, strings.Contains(replacedLinks, "stackoverflow.com"))
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assert.False(t, strings.Contains(replacedLinks, "stackexchange.com"))
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}
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