feat: SO/SE converter

refactor: rework some author logic

src/routes/home.go

@@ -3,6 +3,7 @@ package routes
 import (
 	"anonymousoverflow/config"
 	"fmt"
+	"regexp"
 	"strings"
 
 	"github.com/gin-gonic/gin"
@@ -19,6 +20,8 @@ type urlConversionRequest struct {
 	URL string `form:"url" binding:"required"`
 }
 
+var stackExchangeRegex = regexp.MustCompile(`https://(.+).stackexchange.com/questions/`)
+
 func PostHome(c *gin.Context) {
 	body := urlConversionRequest{}
 
@@ -33,15 +36,24 @@ func PostHome(c *gin.Context) {
 	soLink := body.URL
 
 	// validate URL
-	if !strings.HasPrefix(soLink, "https://stackoverflow.com/questions/") {
+	isStackOverflow := strings.HasPrefix(soLink, "https://stackoverflow.com/questions/")
+	isStackExchange := stackExchangeRegex.MatchString(soLink)
+	if !isStackExchange && !isStackOverflow {
 		c.HTML(400, "home.html", gin.H{
-			"errorMessage": "Invalid stack overflow URL",
+			"errorMessage": "Invalid stack overflow/exchange URL",
 			"theme":        c.MustGet("theme").(string),
 		})
 		return
 	}
 
-	// redirect to the proxied thread
-	c.Redirect(302, fmt.Sprintf("/questions/%s", strings.TrimPrefix(soLink, "https://stackoverflow.com/questions/")))
+	// if stack overflow, trim https://stackoverflow.com
+	if isStackOverflow {
+		c.Redirect(302, strings.TrimPrefix(soLink, "https://stackoverflow.com"))
+		return
+	}
 
+	// if stack exchange, extract the subdomain
+	sub := stackExchangeRegex.FindStringSubmatch(soLink)[1]
+
+	c.Redirect(302, fmt.Sprintf("/exchange/%s/%s", sub, strings.TrimPrefix(soLink, fmt.Sprintf("https://%s.stackexchange.com", sub))))
 }

src/routes/question.go

@@ -178,24 +178,33 @@ func ViewQuestion(c *gin.Context) {
 	userDetails := questionMetadata.Find("div.user-details")
 
 	questionAuthor := ""
-	questionAuthorURL := ""
+	questionAuthorURL := fmt.Sprintf("https://%s", domain)
+
+	// check if the question has been edited
+	isQuestionEdited := false
+	questionMetadata.Find("a.js-gps-track").Each(func(i int, s *goquery.Selection) {
+		if strings.Contains(s.Text(), "edited") {
+			isQuestionEdited = true
+			return
+		}
+	})
 
 	userDetails.Find("a").Each(func(i int, s *goquery.Selection) {
-		// get the second
-		if i == 0 {
-			if s.Text() != "" {
-				// if it's not been edited, it means it's the first
+		// if question has been edited, the author is the second element.
+
+		if isQuestionEdited {
+			if i == 1 {
 				questionAuthor = s.Text()
-				questionAuthorURL, _ = s.Attr("href")
+				questionAuthorURL += s.AttrOr("href", "")
+				return
+			}
+		} else {
+			// otherwise it's the first element
+			if i == 0 {
+				questionAuthor = s.Text()
+				questionAuthorURL += s.AttrOr("href", "")
 				return
 			}
-		}
-
-		// otherwise it's the second element
-		if i == 1 {
-			questionAuthor = s.Text()
-			questionAuthorURL, _ = s.Attr("href")
-			return
 		}
 	})
 
@@ -221,17 +230,17 @@ func ViewQuestion(c *gin.Context) {
 
 		answerFooter := s.Find("div.mt24")
 
-		answerAuthorURL := ""
+		answerAuthorURL := fmt.Sprintf("https://%s", domain)
 		answerAuthorName := ""
 		answerTimestamp := ""
 
 		answerFooter.Find("div.post-signature").Each(func(i int, s *goquery.Selection) {
-			questionAuthorDetails := s.Find("div.user-details")
+			answerAuthorDetails := s.Find("div.user-details")
 
-			if questionAuthorDetails.Length() > 0 {
-				questionAuthor := questionAuthorDetails.Find("a").First()
+			if answerAuthorDetails.Length() > 0 {
+				questionAuthor := answerAuthorDetails.Find("a").First()
 				answerAuthorName = html.EscapeString(questionAuthor.Text())
-				answerAuthorURL = html.EscapeString(questionAuthor.AttrOr("href", ""))
+				answerAuthorURL += html.EscapeString(questionAuthor.AttrOr("href", ""))
 			}
 
 			answerTimestamp = html.EscapeString(s.Find("span.relativetime").Text())

src/types/comment.go

@@ -8,5 +8,4 @@ type FilteredComment struct {
 	AuthorName string
 	AuthorURL  string
 	Upvotes    string
-	Domain     string
 }

src/utils/comments.go

@@ -2,6 +2,7 @@ package utils
 
 import (
 	"anonymousoverflow/src/types"
+	"fmt"
 	"html/template"
 
 	"github.com/PuerkitoBio/goquery"
@@ -34,7 +35,7 @@ func FindAndReturnComments(inHtml, domain string, postLayout *goquery.Selection)
 			return
 		}
 
-		commentAuthorURL := ""
+		commentAuthorURL := fmt.Sprintf("https://%s", domain)
 
 		commentAuthor := commentBody.Find("span.comment-user")
 		if commentAuthor.Length() == 0 {
@@ -43,7 +44,7 @@ func FindAndReturnComments(inHtml, domain string, postLayout *goquery.Selection)
 				return
 			}
 
-			commentAuthorURL = commentAuthor.AttrOr("href", "")
+			commentAuthorURL += commentAuthor.AttrOr("href", "")
 		}
 
 		commentTimestamp := commentBody.Find("span.relativetime-clean").Text()
@@ -54,7 +55,6 @@ func FindAndReturnComments(inHtml, domain string, postLayout *goquery.Selection)
 			AuthorName: commentAuthor.Text(),
 			AuthorURL:  commentAuthorURL,
 			Upvotes:    commentScore,
-			Domain:     domain,
 		}
 
 		comments = append(comments, newFilteredComment)

templates/comments.html

@@ -19,7 +19,7 @@
                 <div class="comment-author">
                     Commented {{ $comment.Timestamp }} by
                     <a
-                        href="https://{{ $comment.Domain }}{{ $comment.AuthorURL }}"
+                        href="{{ $comment.AuthorURL }}"
                         target="_blank"
                         rel="noopener noreferrer"
                         >{{ $comment.AuthorName }}</a

templates/question.html

@@ -30,7 +30,7 @@
                     <p class="timestamp">
                         Asked {{ .question.Timestamp }} by
                         <a
-                            href="https://{{ .domain }}{{ .question.AuthorURL }}"
+                            href="{{ .question.AuthorURL }}"
                             target="_blank"
                             rel="noopener noreferrer"
                             >{{ .question.AuthorName }}</a
@@ -87,7 +87,7 @@
                     <div class="answer-author">
                         Answered {{ $answer.Timestamp }} by
                         <a
-                            href="https://{{ .domain }}{{ $answer.AuthorURL }}"
+                            href="{{ $answer.AuthorURL }}"
                             target="_blank"
                             rel="noopener noreferrer"
                             >{{ $answer.AuthorName }}</a