Update anonoverflow.hyperreal.coffee location (#172)

Co-authored-by: Ftonans <77411099+Ftonans@users.noreply.github.com>

.air.toml

@@ -0,0 +1,44 @@
+root = "."
+testdata_dir = "testdata"
+tmp_dir = "tmp"
+
+[build]
+  args_bin = []
+  bin = "./tmp/main"
+  cmd = "go build -o ./tmp/main ."
+  delay = 0
+  exclude_dir = ["assets", "tmp", "vendor", "testdata"]
+  exclude_file = []
+  exclude_regex = ["_test.go"]
+  exclude_unchanged = false
+  follow_symlink = false
+  full_bin = ""
+  include_dir = []
+  include_ext = ["go", "tpl", "tmpl", "html"]
+  include_file = []
+  kill_delay = "0s"
+  log = "build-errors.log"
+  poll = false
+  poll_interval = 0
+  rerun = false
+  rerun_delay = 500
+  send_interrupt = false
+  stop_on_error = true
+
+[color]
+  app = ""
+  build = "yellow"
+  main = "magenta"
+  runner = "green"
+  watcher = "cyan"
+
+[log]
+  main_only = false
+  time = false
+
+[misc]
+  clean_on_exit = false
+
+[screen]
+  clear_on_rebuild = false
+  keep_scroll = true

.github/ISSUE_TEMPLATE/bug_report.md

@@ -2,21 +2,19 @@
 name: Bug report
 about: 'Create a report to help us improve'
 title: ''
-labels: ''
+labels: 'bug'
 assignees: ''
-
 ---
 
 Please make sure you're on the latest version before submitting.
 
-
 # What's Happening?
-<!-- Describe here -->
 
+<!-- Describe here -->
 
 ## How to reproduce:
-<!-- Describe here -->
 
+<!-- Describe here -->
 
 ## Affected Platforms:
 

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,15 @@
+---
+name: Feature Request
+about: 'Suggest a specific feature or enhancement'
+title: ''
+labels: 'enhancement'
+assignees: ''
+---
+
+# What does the feature entail?
+
+<!-- Describe here -->
+
+# Why is this feature important?
+
+<!-- Describe here -->

.github/ISSUE_TEMPLATE/new_instance.md

@@ -1,12 +0,0 @@
----
-name: New Instance
-about: 'Add my public instance to the list'
-title: "[INSTANCE] New public instance"
-labels: ''
-assignees: ''
-
----
-
-Instance URL: 
-Region (Written Out - ex United States): 
-Operated by (Link to your site):

.github/workflows/docker-image.yml

@@ -0,0 +1,52 @@
+name: Create and publish a Docker image
+
+# Configures this workflow to run every time a change is pushed to the branch called `release`.
+on:
+    push:
+        branches: ['release']
+
+# Defines two custom environment variables for the workflow. These are used for the Container registry domain, and a name for the Docker image that this workflow builds.
+env:
+    REGISTRY: ghcr.io
+    IMAGE_NAME: ${{ github.repository }}
+
+# There is a single job in this workflow. It's configured to run on the latest available version of Ubuntu.
+jobs:
+    build-and-push-image:
+        runs-on: ubuntu-latest
+        # Sets the permissions granted to the `GITHUB_TOKEN` for the actions in this job.
+        permissions:
+            contents: read
+            packages: write
+            #
+        steps:
+            - name: Checkout repository
+              uses: actions/checkout@v4
+            - name: Set up QEMU
+              uses: docker/setup-qemu-action@v3
+            - name: Set up Docker Buildx
+              uses: docker/setup-buildx-action@v3
+            # Uses the `docker/login-action` action to log in to the Container registry registry using the account and password that will publish the packages. Once published, the packages are scoped to the account defined here.
+            - name: Log in to the Container registry
+              uses: docker/login-action@v3
+              with:
+                  registry: ${{ env.REGISTRY }}
+                  username: ${{ github.actor }}
+                  password: ${{ secrets.GITHUB_TOKEN }}
+            # This step uses [docker/metadata-action](https://github.com/docker/metadata-action#about) to extract tags and labels that will be applied to the specified image. The `id` "meta" allows the output of this step to be referenced in a subsequent step. The `images` value provides the base name for the tags and labels.
+            - name: Extract metadata (tags, labels) for Docker
+              id: meta
+              uses: docker/metadata-action@v5
+              with:
+                  images: ${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}
+            # This step uses the `docker/build-push-action` action to build the image, based on your repository's `Dockerfile`. If the build succeeds, it pushes the image to GitHub Packages.
+            # It uses the `context` parameter to define the build's context as the set of files located in the specified path. For more information, see "[Usage](https://github.com/docker/build-push-action#usage)" in the README of the `docker/build-push-action` repository.
+            # It uses the `tags` and `labels` parameters to tag and label the image with the output from the "meta" step.
+            - name: Build and push Docker image
+              uses: docker/build-push-action@v6
+              with:
+                  context: .
+                  push: true
+                  platforms: linux/amd64,linux/arm64
+                  tags: ${{ steps.meta.outputs.tags }}
+                  labels: ${{ steps.meta.outputs.labels }}

.gitignore

@@ -2,3 +2,4 @@
 docker-compose.yml
 .DS_Store
 *bin
+/tmp

.prettierrc

@@ -0,0 +1,6 @@
+{
+    "trailingComma": "es5",
+    "tabWidth": 4,
+    "semi": false,
+    "singleQuote": true
+}

Dockerfile

@@ -1,19 +1,30 @@
-FROM golang:1.18-alpine
-
-RUN apk add musl-dev
-RUN apk add libc-dev
-RUN apk add gcc
+FROM golang:1.22.1-alpine3.19 AS build
 
 WORKDIR /app
 
-COPY go.mod ./
-COPY go.sum ./
+COPY go.mod .
+COPY go.sum .
 
 RUN go mod download
 
-COPY ./ /app
+COPY . .
 
-RUN go build -o /anonymousoverflow
+# Architecture and OS are set dynamically (by BuildKit)
+ARG TARGETOS
+ARG TARGETARCH
+ENV CGO_ENABLED=0 GOOS=$TARGETOS GOARCH=$TARGETARCH
+
+RUN go build -o anonymousoverflow && go build -o healthcheck ./src/healthcheck
+
+FROM scratch
+
+COPY --from=build /app/anonymousoverflow /anonymousoverflow
+COPY --from=build /app/healthcheck /healthcheck
+COPY templates /templates
+COPY public /public
+COPY --from=build /etc/ssl/certs /etc/ssl/certs
+
+HEALTHCHECK --interval=60s --timeout=5s --start-period=2s --retries=3 CMD [ "/healthcheck","http://localhost:8080/healthz" ]
 
 EXPOSE 8080
 

README.md

@@ -6,30 +6,15 @@ This project is super lightweight by design. The UI is simple and the frontend i
 
 ## Screenshots
 
-![Home](https://files.horizon.pics/e2b9275c-1409-4978-801b-de981a8d3ae9?a=1&mime1=image&mime2=png)
+![Home](./docs/screenshots/home_dark.webp)
 
-![Question](https://files.horizon.pics/0f6b0036-87f0-4acd-9a0f-936b5c397a73?a=1&mime1=image&mime2=png)
+![Question](./docs/screenshots/question_dark.webp)
 
-![Answer](https://files.horizon.pics/861ec510-644b-43f2-9439-0a2cae841422?a=1&mime1=image&mime2=png)
+![Answer](./docs/screenshots/answers_light.webp)
 
-## Clearnet Instances
+## Instances
 
-| Instance URL                                                                    | Region                  | Notes                                                                                            |
-| ------------------------------------------------------------------------------- | ----------------------- | ------------------------------------------------------------------------------------------------ |
-| [code.whatever.social](https://code.whatever.social)                            | United States & Germany | Operated by [Whatever Social](https://whatever.social) and [http.james](https://httpjames.space) |
-| [overflow.777.tf](https://overflow.777.tf/)                                     | The Netherlands         | Operated by [Jae](https://777.tf)                                                                |
-| [ao.vern.cc](https://ao.vern.cc)                                                | United States           | Operated by [vern.cc](https://vern.cc)                                                           |
-| [overflow.smnz.de](https://overflow.smnz.de)                                    | Germany                 | Operated by [smnz.de](https://smnz.de)                                                           |
-| [anonymousoverflow.esmailelbob.xyz](https://anonymousoverflow.esmailelbob.xyz/) | Canada                  | Operated by [Esmail EL BoB](https://esmailelbob.xyz)                                             |
-| [overflow.lunar.icu](https://overflow.lunar.icu)                                | Germany                 | Operated by [lunar.icu](https://lunar.icu/)                                                      |
-
-## Other Instances
-
-| Instance URL                                                                                                                                                                | Region        | Notes                                                |
-| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------- | ---------------------------------------------------- |
-| [ao.vernccvbvyi5qhfzyqengccj7lkove6bjot2xhh5kajhwvidqafczrad.onion](http://ao.vernccvbvyi5qhfzyqengccj7lkove6bjot2xhh5kajhwvidqafczrad.onion)                               | United States | Operated by [vern.cc](https://vern.cc)               |
-| [vernmzgraj6aaoafmehupvtkkynpaa67rxcdj2kinwiy6konn6rq.b32.i2p](http://vernmzgraj6aaoafmehupvtkkynpaa67rxcdj2kinwiy6konn6rq.b32.i2p)                                         | United States | Operated by [vern.cc](https://vern.cc)               |
-| [anonymousoverflow.esmail5pdn24shtvieloeedh7ehz3nrwcdivnfhfcedl7gf4kwddhkqd.onion](http://anonymousoverflow.esmail5pdn24shtvieloeedh7ehz3nrwcdivnfhfcedl7gf4kwddhkqd.onion) | Canada        | Operated by [Esmail EL BoB](https://esmailelbob.xyz) |
+Visit the [AnonymousOverflow Hub](https://aohub.httpjames.space) for a list of instances.
 
 ## Why use AnonymousOverflow over StackOverflow?
 
@@ -54,6 +39,12 @@ Their main website also [contains trackers from Alphabet](https://themarkup.org/
 
 StackOverflow has a cluttered UI that might distract you from the content you're trying to find. AnonymousOverflow simplifies the interface to make it easier to read and navigate.
 
+## How to make Stack Overflow links take you to AnonymousOverflow automatically
+
+The open-source [Libredirect](https://github.com/libredirect/libredirect) extension for Firefox and Chromium-based desktop browsers has support for redirections to AnonymousOverflow. To enable this, simply open the extension settings, click on Stack Overflow, then toggle "Enable". That's it, now Stack Overflow links will go to AnonymousOverflow.
+
+The open-source [Proxy_Redirect](https://openuserjs.org/scripts/sjehuda/Proxy_Redirect) user.js script for web browsers with userscript support. You can install it with a web extension like [Greasemonkey](https://greasespot.net/), [Tampermonkey](https://tampermonkey.net/) or [Violentmonkey](https://violentmonkey.github.io/). Once installed, Stack Overflow links will go to AnonymousOverflow.
+
 ## How it works
 
 AnonymousOverflow uses the existing question endpoint that StackOverflow uses. Simply replace the domain name in the URL with the domain name of the AnonymousOverflow instance you're using and you'll be able to view the question anonymously.
@@ -78,8 +69,8 @@ You can easily convert StackOverflow URLs to AnonymousOverflow ones by adding th
 javascript: (function () {
     window.location = window.location
         .toString()
-        .replace(/stackoverflow\.com/, "code.whatever.social");
-})();
+        .replace(/stackoverflow\.com/, 'code.whatever.social')
+})()
 ```
 
 Replace `code.whatever.social` with the domain name of the instance you're using if needed.
@@ -99,3 +90,4 @@ Read the [wiki page](https://github.com/httpjamesm/AnonymousOverflow/wiki/Deploy
 -   [goquery](https://github.com/PuerkitoBio/goquery) under the [BSD 3-Clause License](https://github.com/PuerkitoBio/goquery/blob/master/LICENSE)
 -   [resty](https://github.com/go-resty/resty) under the [MIT License](https://github.com/go-resty/resty/blob/master/LICENSE)
 -   [Chroma](https://github.com/alecthomas/chroma) under the [MIT License](https://github.com/alecthomas/chroma/blob/master/COPYING)
+-   [KaTeX](https://github.com/KaTeX/KaTeX) under the [MIT License](https://github.com/KaTeX/KaTeX/blob/main/LICENSE)

config/version.go

@@ -1,3 +1,3 @@
 package config
 
-var Version = "1.6"
+var Version = "1.13.0"

docker-compose.example.yml

@@ -3,9 +3,7 @@ version: '3'
 services:
     anonymousoverflow:
         container_name: 'app'
-    build:
-      context: .
-      network: 'host'
+        image: 'ghcr.io/httpjamesm/anonymousoverflow:release'
         environment:
             - APP_URL=https://domain.com
             - JWT_SIGNING_SECRET=secret

go.mod

@@ -3,33 +3,65 @@ module anonymousoverflow
 go 1.19
 
 require (
-	github.com/PuerkitoBio/goquery v1.8.0
+	github.com/PuerkitoBio/goquery v1.9.1
 	github.com/alecthomas/chroma v0.10.0
-	github.com/gin-gonic/gin v1.8.2
-	github.com/go-resty/resty/v2 v2.7.0
+	github.com/gin-gonic/gin v1.10.0
+	github.com/go-resty/resty/v2 v2.12.0
+	github.com/golang-jwt/jwt/v4 v4.5.0
+	github.com/joho/godotenv v1.5.1
 )
 
 require (
-	github.com/andybalholm/cascadia v1.3.1 // indirect
-	github.com/dlclark/regexp2 v1.7.0 // indirect
+	github.com/andybalholm/cascadia v1.3.2 // indirect
+	github.com/apapsch/go-jsonmerge/v2 v2.0.0 // indirect
+	github.com/bytedance/sonic v1.11.6 // indirect
+	github.com/bytedance/sonic/loader v0.1.1 // indirect
+	github.com/cespare/xxhash/v2 v2.2.0 // indirect
+	github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d // indirect
+	github.com/chenzhuoyu/iasm v0.9.1 // indirect
+	github.com/cloudwego/base64x v0.1.4 // indirect
+	github.com/cloudwego/iasm v0.2.0 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f // indirect
+	github.com/dlclark/regexp2 v1.11.0 // indirect
+	github.com/gabriel-vasile/mimetype v1.4.3 // 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 v10.11.1 // indirect
-	github.com/goccy/go-json v0.10.0 // indirect
-	github.com/golang-jwt/jwt/v4 v4.4.3 // indirect
-	github.com/joho/godotenv v1.4.0 // 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 v10.20.0 // indirect
+	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/golang/snappy v0.0.4 // indirect
+	github.com/google/uuid v1.3.1 // indirect
+	github.com/influxdata/influxdb-client-go/v2 v2.13.0 // indirect
+	github.com/influxdata/line-protocol v0.0.0-20200327222509-2487e7298839 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
-	github.com/leodido/go-urn v1.2.1 // indirect
-	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/klauspost/compress v1.16.7 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.7 // indirect
+	github.com/leodido/go-urn v1.4.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
 	github.com/modern-go/reflect2 v1.0.2 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.6 // indirect
-	github.com/ugorji/go/codec v1.2.8 // indirect
-	golang.org/x/crypto v0.4.0 // indirect
-	golang.org/x/net v0.4.0 // indirect
-	golang.org/x/sys v0.3.0 // indirect
-	golang.org/x/text v0.5.0 // indirect
-	google.golang.org/protobuf v1.28.1 // indirect
+	github.com/montanaflynn/stats v0.0.0-20171201202039-1bf9dbcd8cbe // indirect
+	github.com/oapi-codegen/runtime v1.0.0 // indirect
+	github.com/pelletier/go-toml/v2 v2.2.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/redis/go-redis/v9 v9.5.3 // indirect
+	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/tavsec/gin-healthcheck v1.6.2 // indirect
+	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
+	github.com/ugorji/go/codec v1.2.12 // indirect
+	github.com/xdg-go/pbkdf2 v1.0.0 // indirect
+	github.com/xdg-go/scram v1.1.2 // indirect
+	github.com/xdg-go/stringprep v1.0.4 // indirect
+	github.com/youmark/pkcs8 v0.0.0-20181117223130-1be2e3e5546d // indirect
+	go.mongodb.org/mongo-driver v1.15.0 // indirect
+	golang.org/x/arch v0.8.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/net v0.25.0 // indirect
+	golang.org/x/sync v0.7.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
+	golang.org/x/text v0.15.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )

go.sum

@@ -1,42 +1,113 @@
 github.com/PuerkitoBio/goquery v1.8.0 h1:PJTF7AmFCFKk1N6V6jmKfrNH9tV5pNE6lZMkG0gta/U=
 github.com/PuerkitoBio/goquery v1.8.0/go.mod h1:ypIiRMtY7COPGk+I/YbZLbxsxn9g5ejnI2HSMtkjZvI=
+github.com/PuerkitoBio/goquery v1.9.1 h1:mTL6XjbJTZdpfL+Gwl5U2h1l9yEkJjhmlTeV9VPW7UI=
+github.com/PuerkitoBio/goquery v1.9.1/go.mod h1:cW1n6TmIMDoORQU5IU/P1T3tGFunOeXEpGP2WHRwkbY=
+github.com/RaveNoX/go-jsoncommentstrip v1.0.0/go.mod h1:78ihd09MekBnJnxpICcwzCMzGrKSKYe4AqU6PDYYpjk=
 github.com/alecthomas/chroma v0.10.0 h1:7XDcGkCQopCNKjZHfYrNLraA+M7e0fMiJ/Mfikbfjek=
 github.com/alecthomas/chroma v0.10.0/go.mod h1:jtJATyUxlIORhUOFNA9NZDWGAQ8wpxQQqNSB4rjA/1s=
 github.com/andybalholm/cascadia v1.3.1 h1:nhxRkql1kdYCc8Snf7D5/D3spOX+dBgjA6u8x004T2c=
 github.com/andybalholm/cascadia v1.3.1/go.mod h1:R4bJ1UQfqADjvDa4P6HZHLh/3OxWWEqc0Sk8XGwHqvA=
+github.com/andybalholm/cascadia v1.3.2 h1:3Xi6Dw5lHF15JtdcmAHD3i1+T8plmv7BQ/nsViSLyss=
+github.com/andybalholm/cascadia v1.3.2/go.mod h1:7gtRlve5FxPPgIgX36uWBX58OdBsSS6lUvCFb+h7KvU=
+github.com/apapsch/go-jsonmerge/v2 v2.0.0 h1:axGnT1gRIfimI7gJifB699GoE/oq+F2MU7Dml6nw9rQ=
+github.com/apapsch/go-jsonmerge/v2 v2.0.0/go.mod h1:lvDnEdqiQrp0O42VQGgmlKpxL1AP2+08jFMw88y4klk=
+github.com/bmatcuk/doublestar v1.1.1/go.mod h1:UD6OnuiIn0yFxxA2le/rnRU1G4RaI4UvFv1sNto9p6w=
+github.com/bytedance/sonic v1.5.0/go.mod h1:ED5hyg4y6t3/9Ku1R6dU/4KyJ48DZ4jPhfY1O2AihPM=
+github.com/bytedance/sonic v1.10.0-rc/go.mod h1:ElCzW+ufi8qKqNW0FY314xriJhyJhuoJ3gFZdAHF7NM=
+github.com/bytedance/sonic v1.11.3 h1:jRN+yEjakWh8aK5FzrciUHG8OFXK+4/KrAX/ysEtHAA=
+github.com/bytedance/sonic v1.11.3/go.mod h1:iZcSUejdk5aukTND/Eu/ivjQuEL0Cu9/rf50Hi0u/g4=
+github.com/bytedance/sonic v1.11.6 h1:oUp34TzMlL+OY1OUWxHqsdkgC/Zfc85zGqw9siXjrc0=
+github.com/bytedance/sonic v1.11.6/go.mod h1:LysEHSvpvDySVdC2f87zGWf6CIKJcAvqab1ZaiQtds4=
+github.com/bytedance/sonic/loader v0.1.1 h1:c+e5Pt1k/cy5wMveRDyk2X4B9hF4g7an8N3zCYjJFNM=
+github.com/bytedance/sonic/loader v0.1.1/go.mod h1:ncP89zfokxS5LZrJxl5z0UJcsk4M4yY2JpfqGeCtNLU=
+github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
+github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
+github.com/chenzhuoyu/base64x v0.0.0-20211019084208-fb5309c8db06/go.mod h1:DH46F32mSOjUmXrMHnKwZdA8wcEefY7UVqBKYGjpdQY=
+github.com/chenzhuoyu/base64x v0.0.0-20221115062448-fe3a3abad311/go.mod h1:b583jCggY9gE99b6G5LEC39OIiVsWj+R97kbl5odCEk=
+github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d h1:77cEq6EriyTZ0g/qfRdp61a3Uu/AWrgIq2s0ClJV1g0=
+github.com/chenzhuoyu/base64x v0.0.0-20230717121745-296ad89f973d/go.mod h1:8EPpVsBuRksnlj1mLy4AWzRNQYxauNi62uWcE3to6eA=
+github.com/chenzhuoyu/iasm v0.9.0/go.mod h1:Xjy2NpN3h7aUqeqM+woSuuvxmIe6+DDsiNLIrkAmYog=
+github.com/chenzhuoyu/iasm v0.9.1 h1:tUHQJXo3NhBqw6s33wkGn9SP3bvrWLdlVIJ3hQBL7P0=
+github.com/chenzhuoyu/iasm v0.9.1/go.mod h1:Xjy2NpN3h7aUqeqM+woSuuvxmIe6+DDsiNLIrkAmYog=
+github.com/cloudwego/base64x v0.1.4 h1:jwCgWpFanWmN8xoIUHa2rtzmkd5J2plF/dnLS6Xd/0Y=
+github.com/cloudwego/base64x v0.1.4/go.mod h1:0zlkT4Wn5C6NdauXdJRhSKRlJvmclQ1hhJgA0rcu/8w=
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@@ -111,3 +286,5 @@ gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C
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+rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=

instances.json

@@ -0,0 +1,232 @@
+{
+    "clearnet": [
+        {
+            "url": "https://code.whatever.social",
+            "regions": ["Canada", "United States"],
+            "operators": ["https://whatever.social", "https://httpjames.space"]
+        },
+        {
+            "url": "https://ao.vern.cc",
+            "regions": ["United States"],
+            "operators": ["https://vern.cc"]
+        },
+        {
+            "url": "https://overflow.smnz.de",
+            "regions": ["Germany"],
+            "operators": ["https://smnz.de"]
+        },
+        {
+            "url": "https://overflow.lunar.icu",
+            "regions": ["Germany"],
+            "operators": ["https://lunar.icu/"]
+        },
+        {
+            "url": "https://overflow.adminforge.de/",
+            "regions": ["Germany"],
+            "operators": ["https://adminforge.de/"]
+        },
+        {
+            "url": "https://overflow.hostux.net/",
+            "regions": ["France"],
+            "operators": ["https://hostux.net/"]
+        },
+        {
+            "url": "https://overflow.projectsegfau.lt/",
+            "regions": ["United States", "Germany", "India"],
+            "operators": ["https://projectsegfau.lt/"]
+        },
+        {
+            "url": "https://code.xbdm.fun",
+            "regions": ["Germany"],
+            "operators": ["https://xbdm.fun"]
+        },
+        {
+            "url": "https://overflow.fascinated.cc/",
+            "regions": ["Germany"],
+            "operators": ["https://fascinated.cc/"]
+        },
+        {
+            "url": "https://ao.bloat.cat",
+            "regions": ["Germany"],
+            "operators": ["https://bloat.cat"]
+        },
+        {
+            "url": "https://anonoverflow.frontendfriendly.xyz/",
+            "regions": ["United States"],
+            "operators": ["https://frontendfriendly.xyz/"]
+        },
+        {
+            "url": "https://ao.owo.si/",
+            "regions": ["Germany"],
+            "operators": ["https://owo.si/"]
+        },
+        {
+            "url": "https://overflow.datura.network/",
+            "regions": ["Germany"],
+            "operators": ["https://datura.network"]
+        },
+        {
+            "url": "https://overflow.freedit.eu",
+            "regions": ["United States"],
+            "operators": ["https://freedit.eu"]
+        },
+        {
+            "url": "https://ao.rootdo.com",
+            "regions": ["Germany"],
+            "operators": ["https://rootdo.com"]
+        },
+        {
+            "url": "https://anonoverflow.hyperreal.coffee",
+            "regions": ["Germany"],
+            "operators": ["https://hyperreal.coffee"]
+        },
+        {
+            "url": "https://o.sudovanilla.org",
+            "regions": ["United States"],
+            "operators": ["https://sudovanilla.org"]
+        },
+        {
+            "url": "https://anonymousoverflow.privacyfucking.rocks/",
+            "regions": ["Germany"],
+            "operators": ["https://privacyfucking.rocks"]
+        },
+        {
+            "url": "https://exchange.seitan-ayoub.lol",
+            "regions": ["Germany"],
+            "operators": ["https://seitan-ayoub.lol"]
+        },
+        {
+            "url": "https://overflow.r4fo.com",
+            "regions": ["The Netherlands"],
+            "operators": ["https://r4fo.com"]
+        },
+        {
+            "url": "https://overflow.ducks.party",
+            "regions": ["The Netherlands"],
+            "operators": ["https://ducks.party"]
+        },
+        {
+            "url": "https://ao.ngn.tf",
+            "regions": ["Turkey"],
+            "operators": ["https://ngn.tf"]
+        },
+        {
+            "url": "https://overflow.snine.nl",
+            "regions": ["The Netherlands"],
+            "operators": ["https://snine.nl"]
+        },
+        {
+            "url": "https://anonymousoverflow.privacyredirect.com",
+            "regions": ["Finland"],
+            "operators": ["https://privacyredirect.com/"]
+        },
+        {
+            "url": "https://soflow.nerdvpn.de",
+            "regions": ["Ukraine"],
+            "operators": ["https://nerdvpn.de"]
+        },
+        {
+            "url": "https://overflow.einfachzocken.eu/",
+            "regions": ["Germany"],
+            "operators": ["https://einfachzocken.eu"]
+        },
+        {
+            "url": "https://overflow.seasi.dev/",
+            "regions": ["Singapore"],
+            "operators": ["https://seasi.dev/"]
+        },
+        {
+            "url": "https://anonymousoverflow.catsarch.com",
+            "regions": ["United States"],
+            "operators": ["https://catsarch.com"]
+        },
+        {
+            "url": "https://overflow.darkness.services/",
+            "regions": ["United States"],
+            "operators": ["https://zzz.darkness.services"]
+        },
+        {
+            "url": "https://anonflow.aketawi.space/",
+            "regions": ["Russia"],
+            "operators": ["https://www.aketawi.space/"]
+        },
+        {
+            "url": "https://ao.bunk.lol",
+            "regions": ["Iceland"],
+            "operators": ["https://bunk.lol"]
+        },
+        {
+            "url": "https://o.iii.st/",
+            "regions": ["Germany"],
+            "operators": ["https://iii.st/"]
+        },
+        {
+            "url": "https://overflow.canine.tools/",
+            "regions": ["United States"],
+            "operators": ["https://canine.tools/"]
+        }
+    ],
+
+    "onion": [
+        {
+            "url": "http://ao.vernccvbvyi5qhfzyqengccj7lkove6bjot2xhh5kajhwvidqafczrad.onion",
+            "regions": ["United States"],
+            "operators": ["https://vern.cc"]
+        },
+        {
+            "url": "http://overflow.pjsfkvpxlinjamtawaksbnnaqs2fc2mtvmozrzckxh7f3kis6yea25ad.onion/",
+            "regions": ["Germany"],
+            "operators": ["https://projectsegfau.lt/"]
+        },
+        {
+            "url": "http://overflow.daturab6drmkhyeia4ch5gvfc2f3wgo6bhjrv3pz6n7kxmvoznlkq4yd.onion/",
+            "regions": ["Germany"],
+            "operators": ["https://datura.network"]
+        },
+        {
+            "url": "http://ao.pk47sgwhncn5cgidm7bofngmh7lc7ukjdpk5bjwfemmyp27ovl25ikyd.onion/",
+            "regions": ["Germany"],
+            "operators": ["https://owo.si/"]
+        },
+        {
+            "url": "http://overflow.r4focoma7gu2zdwwcjjad47ysxt634lg73sxmdbkdozanwqslho5ohyd.onion",
+            "regions": ["The Netherlands"],
+            "operators": ["https://r4fo.com"]
+        },
+        {
+            "url": "http://anonymousoverflow.catsarchywsyuss6jdxlypsw5dc7owd5u5tr6bujxb7o6xw2hipqehyd.onion/",
+            "regions": ["United States"],
+            "operators": ["https://catsarch.com"]
+        },
+        {
+            "url": "http://overflow.darknessrdor43qkl2ngwitj72zdavfz2cead4t5ed72bybgauww5lyd.onion/",
+            "regions": ["United States"],
+            "operators": [
+                "http://darknessrdor43qkl2ngwitj72zdavfz2cead4t5ed72bybgauww5lyd.onion/"
+            ]
+        },
+        {
+            "url": "http://o.zx56doutynmbgezxtpccduajwcblzx7fgio2yuy57a3jingco2c6fvqd.onion/",
+            "regions": ["Germany"],
+            "operators": ["https://iii.st/"]
+        }
+    ],
+
+    "i2p": [
+        {
+            "url": "http://vernmzgraj6aaoafmehupvtkkynpaa67rxcdj2kinwiy6konn6rq.b32.i2p",
+            "regions": ["United States"],
+            "operators": ["https://vern.cc"]
+        },
+        {
+            "url": "http://ay7akchgdh76r4lc62hzd52z6xqoh67loototsetvqxo5o7ngo5q.b32.i2p/",
+            "regions": ["Germany"],
+            "operators": ["https://owo.si/"]
+        },
+        {
+            "url": "http://ocp7zhdsbl2mjabv5ma5jvbzg2dqzglieayjvyj4j2r7qvsqlboa.b32.i2p/",
+            "regions": ["United States"],
+            "operators": ["https://catsarch.com"]
+        }
+    ]
+}

main.go

@@ -8,6 +8,9 @@ import (
 	"os"
 
 	"github.com/gin-gonic/gin"
+	healthcheck "github.com/tavsec/gin-healthcheck"
+	"github.com/tavsec/gin-healthcheck/checks"
+	"github.com/tavsec/gin-healthcheck/config"
 )
 
 func main() {
@@ -35,7 +38,6 @@ func main() {
 
 	r.Use(gin.Recovery())
 	r.Use(middleware.XssPreventionHeaders())
-	r.Use(middleware.NoCacheMiddleware())
 	r.Use(middleware.OptionsMiddleware())
 	r.Use(middleware.Ratelimit())
 
@@ -50,13 +52,45 @@ func main() {
 	r.GET("/", routes.GetHome)
 	r.POST("/", routes.PostHome)
 
+	r.GET("/a/:id", routes.RedirectShortenedOverflowURL)
+	r.GET("/a/:id/:answerId", routes.RedirectShortenedOverflowURL)
+	r.GET("/q/:id", routes.RedirectShortenedOverflowURL)
+	r.GET("/q/:id/:answerId", routes.RedirectShortenedOverflowURL)
+
+	exchangeRouter := r.Group("/exchange/:sub")
+	{
+		exchangeRouter.GET("/questions/:id/:title", routes.ViewQuestion)
+		exchangeRouter.GET("/questions/:id", func(c *gin.Context) {
+			// redirect user to the question with the title
+			c.Redirect(302, fmt.Sprintf("/exchange/%s/questions/%s/placeholder", c.Param("sub"), c.Param("id")))
+		})
+		exchangeRouter.GET("/questions/:id/:title/:answerId", func(c *gin.Context) {
+			// redirect user to the answer with the title
+			c.Redirect(302, fmt.Sprintf("/exchange/%s/questions/%s/%s#%s", c.Param("sub"), c.Param("id"), c.Param("title"), c.Param("answerId")))
+		})
+		exchangeRouter.GET("/q/:id/:answerId", routes.RedirectShortenedOverflowURL)
+		exchangeRouter.GET("/q/:id", routes.RedirectShortenedOverflowURL)
+		exchangeRouter.GET("/a/:id/:answerId", routes.RedirectShortenedOverflowURL)
+		exchangeRouter.GET("/a/:id", routes.RedirectShortenedOverflowURL)
+	}
+
 	r.GET("/questions/:id", func(c *gin.Context) {
 		// redirect user to the question with the title
 		c.Redirect(302, fmt.Sprintf("/questions/%s/placeholder", c.Param("id")))
 	})
 	r.GET("/questions/:id/:title", routes.ViewQuestion)
+	r.GET("/questions/:id/:title/:answerId", func(c *gin.Context) {
+		// redirect user to the answer with the title
+		c.Redirect(302, fmt.Sprintf("/questions/%s/%s#%s", c.Param("id"), c.Param("title"), c.Param("answerId")))
+	})
 
 	r.GET("/proxy", routes.GetImage)
 
+	r.GET("/version", routes.GetVersion)
+
+	soPingCheck := checks.NewPingCheck("https://stackoverflow.com", "GET", 5000, nil, nil)
+	sePingCheck := checks.NewPingCheck("https://stackexchange.com", "GET", 5000, nil, nil)
+	healthcheck.New(r, config.DefaultConfig(), []checks.Check{soPingCheck, sePingCheck})
+
 	r.Run(fmt.Sprintf("%s:%s", host, port))
 }

public/codecircles.svg

@@ -0,0 +1,6 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 49 48">
+    <circle cx="14.5" cy="33.5" r="14.5" fill="#8cffc0"/>
+    <circle cx="14.5" cy="14.5" r="14.5" fill="#fff"/>
+    <circle cx="34.5" cy="14.5" r="14.5" fill="#8cffc0"/>
+    <circle cx="34.5" cy="33.5" r="14.5" fill="#fff"/>
+</svg>

public/globals.css

@@ -1,37 +1,67 @@
 :root {
+    --code-bg: #36383d;
+    --code-fg: #ffffff;
+}
+
+:root,
+[data-theme="dark"] {
     --main-bg: #1b1f26;
     --text-color: #fff;
     --muted-text-color: #b3b3b3;
-    --code-bg: #36383d;
     --input-bg: #2b303b;
     --input-bg-hover: #3b404b;
-    --meta-bg: rgb(82, 82, 98);
+    --meta-bg: #525262;
     --divider-color: #42464e;
     --link-color: #92adff;
 }
 
-[data-theme="light"] {
-    --main-bg: rgb(219, 219, 219);
+@media (prefers-color-scheme: light) {
+    :root:not([data-theme="dark"]) {
+        --main-bg: #dbdbdb;
         --text-color: #000;
         --muted-text-color: #636363;
-    --code-bg: #36383d;
-    --input-bg: rgb(188, 188, 188);
-    --input-bg-hover: rgb(168, 168, 168);
-    --meta-bg: rgb(170, 168, 168);
+        --input-bg: #bcbcbc;
+        --input-bg-hover: #a8a8a8;
+        --meta-bg: #aaa8a8;
+        --divider-color: #b5b5b5;
+        --link-color: #335ad0;
+    }
+}
+
+[data-theme="light"] {
+    --main-bg: #dbdbdb;
+    --text-color: #000;
+    --muted-text-color: #636363;
+    --input-bg: #bcbcbc;
+    --input-bg-hover: #a8a8a8;
+    --meta-bg: #aaa8a8;
     --divider-color: #b5b5b5;
     --link-color: #335ad0;
 }
 
 a {
     color: var(--link-color);
+    word-wrap: break-word;
 }
 
-
 html {
+    margin: auto;
+    max-width: 40rem;
+}
+
+@media only screen and (max-width: calc(40rem + 2rem)) {
+    body {
+        padding-left: 1rem;
+        padding-right: 1rem;
+    }
+}
+
+body {
+    background-color: var(--main-bg);
+    color: var(--text-color);
+    font-family: sans-serif;
+
     margin: 0;
-    padding: 0;
-    width: 100vw;
-    height: 100vh;
 }
 
 .icon {
@@ -45,9 +75,21 @@ html {
 .icon img {
     background: white;
     border-radius: 50%;
-    padding: .25rem;
+    padding: 0.25rem;
 }
 
 details {
     cursor: pointer;
 }
+
+.d-flex {
+    display: flex;
+}
+
+.fd-column {
+    flex-direction: column;
+}
+
+.fw-nowrap {
+    flex-wrap: nowrap;
+}

public/home.css

@@ -1,21 +1,10 @@
 body {
-    background-color: var(--main-bg);
-    font-family: sans-serif;
-
     display: flex;
-    justify-content: center;
-    align-items: center;
-
     height: 100vh;
-    width: 100vw;
-
-    margin: 0;
-
-    color: var(--text-color);
 }
 
 .container {
-    width: 40rem;
+    margin: auto;
 }
 
 .footer {
@@ -44,7 +33,7 @@ body {
 
 .view-input:focus {
     outline: none;
-    border: 2px solid rgb(168, 168, 168);
+    border: 2px solid #a8a8a8;
 }
 
 .view-button {
@@ -71,7 +60,7 @@ body {
 }
 
 .error {
-    background-color: rgb(255, 129, 129);
+    background-color: #ff8181;
 }
 
 .error,
@@ -104,10 +93,3 @@ body {
     width: 2rem;
     height: 2rem;
 }
-
-@media screen and (max-width: 800px) {
-    body {
-        padding: 1rem;
-        box-sizing: border-box;
-    }
-}

public/icons/link.svg

@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" class="w-6 h-6">
+  <path stroke-linecap="round" stroke-linejoin="round" d="M13.19 8.688a4.5 4.5 0 011.242 7.244l-4.5 4.5a4.5 4.5 0 01-6.364-6.364l1.757-1.757m13.35-.622l1.757-1.757a4.5 4.5 0 00-6.364-6.364l-4.5 4.5a4.5 4.5 0 001.242 7.244" />
+</svg>

public/katex/README.md

@@ -0,0 +1,125 @@
+<h1><a href="https://katex.org/">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://katex.org/img/katex-logo.svg">
+    <img alt="KaTeX" width=130 src="https://katex.org/img/katex-logo-black.svg">
+  </picture>
+</a></h1>
+
+[![npm](https://img.shields.io/npm/v/katex.svg)](https://www.npmjs.com/package/katex)
+[![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
+[![CI](https://github.com/KaTeX/KaTeX/workflows/CI/badge.svg?branch=main&event=push)](https://github.com/KaTeX/KaTeX/actions?query=workflow%3ACI)
+[![codecov](https://codecov.io/gh/KaTeX/KaTeX/branch/main/graph/badge.svg)](https://codecov.io/gh/KaTeX/KaTeX)
+[![Discussions](https://img.shields.io/badge/Discussions-join-brightgreen)](https://github.com/KaTeX/KaTeX/discussions)
+[![jsDelivr](https://data.jsdelivr.com/v1/package/npm/katex/badge?style=rounded)](https://www.jsdelivr.com/package/npm/katex)
+![katex.min.js size](https://img.badgesize.io/https://unpkg.com/katex/dist/katex.min.js?compression=gzip)
+[![Gitpod ready-to-code](https://img.shields.io/badge/Gitpod-ready--to--code-blue?logo=gitpod)](https://gitpod.io/#https://github.com/KaTeX/KaTeX)
+[![Financial Contributors on Open Collective](https://opencollective.com/katex/all/badge.svg?label=financial+contributors)](https://opencollective.com/katex)
+
+KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web.
+
+ * **Fast:** KaTeX renders its math synchronously and doesn't need to reflow the page. See how it compares to a competitor in [this speed test](https://www.intmath.com/cg5/katex-mathjax-comparison.php).
+ * **Print quality:** KaTeX's layout is based on Donald Knuth's TeX, the gold standard for math typesetting.
+ * **Self contained:** KaTeX has no dependencies and can easily be bundled with your website resources.
+ * **Server side rendering:** KaTeX produces the same output regardless of browser or environment, so you can pre-render expressions using Node.js and send them as plain HTML.
+
+KaTeX is compatible with all major browsers, including Chrome, Safari, Firefox, Opera, Edge, and IE 11.
+
+KaTeX supports much (but not all) of LaTeX and many LaTeX packages. See the [list of supported functions](https://katex.org/docs/supported.html).
+
+Try out KaTeX [on the demo page](https://katex.org/#demo)!
+
+## Getting started
+
+### Starter template
+
+```html
+<!DOCTYPE html>
+<!-- KaTeX requires the use of the HTML5 doctype. Without it, KaTeX may not render properly -->
+<html>
+  <head>
+    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/katex.min.css" integrity="sha384-GvrOXuhMATgEsSwCs4smul74iXGOixntILdUW9XmUC6+HX0sLNAK3q71HotJqlAn" crossorigin="anonymous">
+
+    <!-- The loading of KaTeX is deferred to speed up page rendering -->
+    <script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/katex.min.js" integrity="sha384-cpW21h6RZv/phavutF+AuVYrr+dA8xD9zs6FwLpaCct6O9ctzYFfFr4dgmgccOTx" crossorigin="anonymous"></script>
+
+    <!-- To automatically render math in text elements, include the auto-render extension: -->
+    <script defer src="https://cdn.jsdelivr.net/npm/katex@0.16.8/dist/contrib/auto-render.min.js" integrity="sha384-+VBxd3r6XgURycqtZ117nYw44OOcIax56Z4dCRWbxyPt0Koah1uHoK0o4+/RRE05" crossorigin="anonymous"
+        onload="renderMathInElement(document.body);"></script>
+  </head>
+  ...
+</html>
+```
+
+You can also [download KaTeX](https://github.com/KaTeX/KaTeX/releases) and host it yourself.
+
+For details on how to configure auto-render extension, refer to [the documentation](https://katex.org/docs/autorender.html).
+
+### API
+
+Call `katex.render` to render a TeX expression directly into a DOM element.
+For example:
+
+```js
+katex.render("c = \\pm\\sqrt{a^2 + b^2}", element, {
+    throwOnError: false
+});
+```
+
+Call `katex.renderToString` to generate an HTML string of the rendered math,
+e.g., for server-side rendering.  For example:
+
+```js
+var html = katex.renderToString("c = \\pm\\sqrt{a^2 + b^2}", {
+    throwOnError: false
+});
+// '<span class="katex">...</span>'
+```
+
+Make sure to include the CSS and font files in both cases.
+If you are doing all rendering on the server, there is no need to include the
+JavaScript on the client.
+
+The examples above use the `throwOnError: false` option, which renders invalid
+inputs as the TeX source code in red (by default), with the error message as
+hover text.  For other available options, see the
+[API documentation](https://katex.org/docs/api.html),
+[options documentation](https://katex.org/docs/options.html), and
+[handling errors documentation](https://katex.org/docs/error.html).
+
+## Demo and Documentation
+
+Learn more about using KaTeX [on the website](https://katex.org)!
+
+## Contributors
+
+### Code Contributors
+
+This project exists thanks to all the people who contribute code. If you'd like to help, see [our guide to contributing code](CONTRIBUTING.md).
+<a href="https://github.com/KaTeX/KaTeX/graphs/contributors"><img src="https://contributors-svg.opencollective.com/katex/contributors.svg?width=890&button=false" alt="Code contributors" /></a>
+
+### Financial Contributors
+
+Become a financial contributor and help us sustain our community.
+
+#### Individuals
+
+<a href="https://opencollective.com/katex"><img src="https://opencollective.com/katex/individuals.svg?width=890" alt="Contribute on Open Collective"></a>
+
+#### Organizations
+
+Support this project with your organization. Your logo will show up here with a link to your website.
+
+<a href="https://opencollective.com/katex/organization/0/website"><img src="https://opencollective.com/katex/organization/0/avatar.svg" alt="Organization 1"></a>
+<a href="https://opencollective.com/katex/organization/1/website"><img src="https://opencollective.com/katex/organization/1/avatar.svg" alt="Organization 2"></a>
+<a href="https://opencollective.com/katex/organization/2/website"><img src="https://opencollective.com/katex/organization/2/avatar.svg" alt="Organization 3"></a>
+<a href="https://opencollective.com/katex/organization/3/website"><img src="https://opencollective.com/katex/organization/3/avatar.svg" alt="Organization 4"></a>
+<a href="https://opencollective.com/katex/organization/4/website"><img src="https://opencollective.com/katex/organization/4/avatar.svg" alt="Organization 5"></a>
+<a href="https://opencollective.com/katex/organization/5/website"><img src="https://opencollective.com/katex/organization/5/avatar.svg" alt="Organization 6"></a>
+<a href="https://opencollective.com/katex/organization/6/website"><img src="https://opencollective.com/katex/organization/6/avatar.svg" alt="Organization 7"></a>
+<a href="https://opencollective.com/katex/organization/7/website"><img src="https://opencollective.com/katex/organization/7/avatar.svg" alt="Organization 8"></a>
+<a href="https://opencollective.com/katex/organization/8/website"><img src="https://opencollective.com/katex/organization/8/avatar.svg" alt="Organization 9"></a>
+<a href="https://opencollective.com/katex/organization/9/website"><img src="https://opencollective.com/katex/organization/9/avatar.svg" alt="Organization 10"></a>
+
+## License
+
+KaTeX is licensed under the [MIT License](https://opensource.org/licenses/MIT).

public/katex/contrib/auto-render.min.js

@@ -0,0 +1 @@
+!function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t(require("katex")):"function"==typeof define&&define.amd?define(["katex"],t):"object"==typeof exports?exports.renderMathInElement=t(require("katex")):e.renderMathInElement=t(e.katex)}("undefined"!=typeof self?self:this,(function(e){return function(){"use strict";var t={771:function(t){t.exports=e}},r={};function n(e){var i=r[e];if(void 0!==i)return i.exports;var a=r[e]={exports:{}};return t[e](a,a.exports,n),a.exports}n.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return n.d(t,{a:t}),t},n.d=function(e,t){for(var r in t)n.o(t,r)&&!n.o(e,r)&&Object.defineProperty(e,r,{enumerable:!0,get:t[r]})},n.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)};var i={};return function(){n.d(i,{default:function(){return s}});var e=n(771),t=n.n(e),r=function(e,t,r){for(var n=r,i=0,a=e.length;n<t.length;){var o=t[n];if(i<=0&&t.slice(n,n+a)===e)return n;"\\"===o?n++:"{"===o?i++:"}"===o&&i--,n++}return-1},a=/^\\begin{/,o=function(e,t){for(var n,i=[],o=new RegExp("("+t.map((function(e){return e.left.replace(/[-/\\^$*+?.()|[\]{}]/g,"\\$&")})).join("|")+")");-1!==(n=e.search(o));){n>0&&(i.push({type:"text",data:e.slice(0,n)}),e=e.slice(n));var l=t.findIndex((function(t){return e.startsWith(t.left)}));if(-1===(n=r(t[l].right,e,t[l].left.length)))break;var d=e.slice(0,n+t[l].right.length),s=a.test(d)?d:e.slice(t[l].left.length,n);i.push({type:"math",data:s,rawData:d,display:t[l].display}),e=e.slice(n+t[l].right.length)}return""!==e&&i.push({type:"text",data:e}),i},l=function(e,r){var n=o(e,r.delimiters);if(1===n.length&&"text"===n[0].type)return null;for(var i=document.createDocumentFragment(),a=0;a<n.length;a++)if("text"===n[a].type)i.appendChild(document.createTextNode(n[a].data));else{var l=document.createElement("span"),d=n[a].data;r.displayMode=n[a].display;try{r.preProcess&&(d=r.preProcess(d)),t().render(d,l,r)}catch(e){if(!(e instanceof t().ParseError))throw e;r.errorCallback("KaTeX auto-render: Failed to parse `"+n[a].data+"` with ",e),i.appendChild(document.createTextNode(n[a].rawData));continue}i.appendChild(l)}return i},d=function e(t,r){for(var n=0;n<t.childNodes.length;n++){var i=t.childNodes[n];if(3===i.nodeType){for(var a=i.textContent,o=i.nextSibling,d=0;o&&o.nodeType===Node.TEXT_NODE;)a+=o.textContent,o=o.nextSibling,d++;var s=l(a,r);if(s){for(var f=0;f<d;f++)i.nextSibling.remove();n+=s.childNodes.length-1,t.replaceChild(s,i)}else n+=d}else 1===i.nodeType&&function(){var t=" "+i.className+" ";-1===r.ignoredTags.indexOf(i.nodeName.toLowerCase())&&r.ignoredClasses.every((function(e){return-1===t.indexOf(" "+e+" ")}))&&e(i,r)}()}},s=function(e,t){if(!e)throw new Error("No element provided to render");var r={};for(var n in t)t.hasOwnProperty(n)&&(r[n]=t[n]);r.delimiters=r.delimiters||[{left:"$$",right:"$$",display:!0},{left:"\\(",right:"\\)",display:!1},{left:"\\begin{equation}",right:"\\end{equation}",display:!0},{left:"\\begin{align}",right:"\\end{align}",display:!0},{left:"\\begin{alignat}",right:"\\end{alignat}",display:!0},{left:"\\begin{gather}",right:"\\end{gather}",display:!0},{left:"\\begin{CD}",right:"\\end{CD}",display:!0},{left:"\\[",right:"\\]",display:!0}],r.ignoredTags=r.ignoredTags||["script","noscript","style","textarea","pre","code","option"],r.ignoredClasses=r.ignoredClasses||[],r.errorCallback=r.errorCallback||console.error,r.macros=r.macros||{},d(e,r)}}(),i=i.default}()}));

public/question.css

@@ -1,27 +1,5 @@
 body {
-    margin: 0;
-    width: 100vw;
-    height: 100vh;
-
-    overflow-x: hidden;
-
-    background-color: var(--main-bg);
-    color: var(--text-color);
-    font-family: sans-serif;
-
-    display: flex;
-    justify-content: center;
-
-    padding-left: 5rem;
-    padding-right: 5rem;
     padding-top: 2rem;
-
-    box-sizing: border-box;
-}
-
-.parent {
-    max-width: 90%;
-    width: fit-content;
 }
 
 .header {
@@ -31,7 +9,7 @@ body {
 
 .card-tags {
     display: flex;
-    gap: .5rem;
+    gap: 0.5rem;
 }
 
 .card-tags .tag {
@@ -47,18 +25,22 @@ code {
     background-color: var(--code-bg);
     padding: 0.15rem;
     border-radius: 5px;
-    color: white;
+    color: var(--code-fg);
 }
 
 pre {
     background-color: var(--code-bg);
     padding: 1rem;
     border-radius: 5px;
-    color: var(--text-color);
+    color: var(--code-fg);
     overflow-x: auto;
     line-height: 1.35;
 }
 
+pre code {
+    background: none;
+}
+
 .timestamp {
     color: var(--muted-text-color);
     font-size: 0.8rem;
@@ -90,6 +72,14 @@ img {
     margin-bottom: 1rem;
     background-color: var(--meta-bg);
     color: var(--text-color);
+
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+}
+
+.answer-meta p {
+    margin: 0;
 }
 
 .answer-meta.accepted {
@@ -128,8 +118,21 @@ img {
     margin-bottom: 1rem;
 }
 
+.s-notice .d-flex {
+    display: flex;
+}
+
+.s-notice .mr8 {
+    margin-right: 1rem;
+}
+
+.s-notice svg {
+    height: 1rem;
+}
+
 .answers-header {
     display: flex;
+    flex-wrap: wrap;
     justify-content: space-between;
     align-items: center;
 }
@@ -163,10 +166,3 @@ img {
     justify-content: center;
     align-items: center;
 }
-
-@media only screen and (max-width: 800px) {
-    body {
-        padding-left: 1rem;
-        padding-right: 1rem;
-    }
-}

public/question.js

@@ -0,0 +1,12 @@
+const doRender = () => {
+    renderMathInElement(document.body, {
+        delimiters: [
+            { left: '$$', right: '$$', display: true },
+            { left: '\\[', right: '\\]', display: true },
+            { left: '$', right: '$', display: false },
+            { left: '\\(', right: '\\)', display: false },
+        ],
+    })
+}
+
+doRender();

src/healthcheck/healthcheck.go

@@ -0,0 +1,20 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+	"os"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		log.Fatal("Expected URL as command-line argument")
+		os.Exit(1)
+	}
+	url := os.Args[1]
+	fmt.Println(url)
+	if _, err := http.Get(url); err != nil {
+		os.Exit(1)
+	}
+}

src/middleware/noCache.go

@@ -1,12 +0,0 @@
-package middleware
-
-import "github.com/gin-gonic/gin"
-
-func NoCacheMiddleware() gin.HandlerFunc {
-	return func(c *gin.Context) {
-		c.Header("Cache-Control", "no-cache, no-store, must-revalidate")
-		c.Header("Pragma", "no-cache")
-		c.Header("Expires", "0")
-		c.Next()
-	}
-}

src/middleware/options.go

@@ -1,30 +1,18 @@
 package middleware
 
-import "github.com/gin-gonic/gin"
+import (
+	"github.com/gin-gonic/gin"
+)
 
 func OptionsMiddleware() gin.HandlerFunc {
 	return func(c *gin.Context) {
 		c.Set("disable_images", false)
-		c.Set("theme", "dark")
 
 		imagesCookie, err := c.Cookie("disable_images")
-		if err != nil {
-			c.Next()
-			return
-		}
-
+		if err == nil {
 			if imagesCookie == "true" {
 				c.Set("disable_images", true)
 			}
-
-		themeCookie, err := c.Cookie("theme")
-		if err != nil {
-			c.Next()
-			return
-		}
-
-		if themeCookie == "light" {
-			c.Set("theme", "light")
 		}
 
 		c.Next()

src/middleware/ratelimit.go

@@ -2,6 +2,8 @@ package middleware
 
 import (
 	"anonymousoverflow/config"
+	"os"
+	"strings"
 	"sync"
 	"time"
 
@@ -12,6 +14,17 @@ var ipMap = sync.Map{}
 
 func Ratelimit() gin.HandlerFunc {
 	return func(c *gin.Context) {
+
+		if os.Getenv("DISABLE_RATELIMIT") == "true" {
+			c.Next()
+			return
+		}
+
+		if strings.HasPrefix(c.Request.URL.Path, "/static") {
+			c.Next()
+			return
+		}
+
 		ip := c.ClientIP()
 
 		// log request count as the value, ip as key
@@ -34,7 +47,6 @@ func Ratelimit() gin.HandlerFunc {
 		if val.(int) > 30 {
 			c.HTML(429, "home.html", gin.H{
 				"errorMessage": "You have exceeded the request limit. Please try again in a minute.",
-				"theme":        c.MustGet("theme").(string),
 				"version":      config.Version,
 			})
 			c.Abort()

src/routes/home.go

@@ -2,16 +2,19 @@ package routes
 
 import (
 	"anonymousoverflow/config"
+	"anonymousoverflow/src/utils"
 	"fmt"
+	"regexp"
 	"strings"
 
 	"github.com/gin-gonic/gin"
 )
 
 func GetHome(c *gin.Context) {
+	theme := utils.GetThemeFromEnv()
 	c.HTML(200, "home.html", gin.H{
 		"version": config.Version,
-		"theme":   c.MustGet("theme").(string),
+		"theme":   theme,
 	})
 }
 
@@ -19,29 +22,62 @@ type urlConversionRequest struct {
 	URL string `form:"url" binding:"required"`
 }
 
+var coreRegex = regexp.MustCompile(`(?:https?://)?(?:www\.)?([^/]+)(/(?:questions|q|a)/.+)`)
+
+// Will return `nil` if `rawUrl` is invalid.
+func translateUrl(rawUrl string) string {
+	coreMatches := coreRegex.FindStringSubmatch(rawUrl)
+	if coreMatches == nil {
+		return ""
+	}
+
+	domain := coreMatches[1]
+	rest := coreMatches[2]
+
+	exchange := ""
+	if domain == "stackoverflow.com" {
+		// No exchange parameter needed.
+	} else if sub, found := strings.CutSuffix(domain, ".stackexchange.com"); found {
+		if sub == "" {
+			return ""
+		} else if strings.Contains(sub, ".") {
+			// Anything containing dots is interpreted as a full domain, so we use the correct full domain.
+			exchange = domain
+		} else {
+			exchange = sub
+		}
+	} else {
+		exchange = domain
+	}
+
+	// Ensure we properly format the return string to avoid double slashes
+	if exchange == "" {
+		return rest
+	} else {
+		return fmt.Sprintf("/exchange/%s%s", exchange, rest)
+	}
+}
+
 func PostHome(c *gin.Context) {
 	body := urlConversionRequest{}
 
 	if err := c.ShouldBind(&body); err != nil {
 		c.HTML(400, "home.html", gin.H{
 			"errorMessage": "Invalid request body",
-			"theme":        c.MustGet("theme").(string),
 		})
 		return
 	}
 
-	soLink := body.URL
+	translated := translateUrl(body.URL)
 
-	// validate URL
-	if !strings.HasPrefix(soLink, "https://stackoverflow.com/questions/") {
+	if translated == "" {
+		theme := utils.GetThemeFromEnv()
 		c.HTML(400, "home.html", gin.H{
-			"errorMessage": "Invalid stack overflow URL",
-			"theme":        c.MustGet("theme").(string),
+			"errorMessage": "Invalid stack overflow/exchange URL",
+			"theme":        theme,
 		})
 		return
 	}
 
-	// redirect to the proxied thread
-	c.Redirect(302, fmt.Sprintf("/questions/%s", strings.TrimPrefix(soLink, "https://stackoverflow.com/questions/")))
-
+	c.Redirect(302, translated)
 }

src/routes/home_test.go

@@ -0,0 +1,32 @@
+package routes
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTranslateUrl(t *testing.T) {
+	assert := assert.New(t)
+
+	// Test with a Valid StackOverflow URL
+	assert.Equal("/questions/example-question", translateUrl("https://stackoverflow.com/questions/example-question"), "StackOverflow URL should not be modified")
+
+	// Test with Complex Subdomain
+	assert.Equal("/exchange/meta.math.stackexchange.com/q/example-question", translateUrl("https://meta.math.stackexchange.com/q/example-question"), "Complex StackExchange subdomain should be used as full exchange")
+
+	// Test with Non-StackExchange Domain
+	assert.Equal("/exchange/example.com/questions/example-question", translateUrl("https://example.com/questions/example-question"), "Non-StackExchange domain should be detected as exchange")
+
+	// Test with Invalid URL
+	assert.Equal("", translateUrl("This is not a URL"), "Invalid URL should return an empty string")
+
+	// Test with Empty String
+	assert.Equal("", translateUrl(""), "Empty string should return an empty string")
+
+	// Test with Missing Path
+	assert.Equal("", translateUrl("https://stackoverflow.com"), "URL without path should return an empty string")
+
+	// Test with Valid URL but Root Domain for StackExchange
+	assert.Equal("", translateUrl("https://stackexchange.com"), "Root StackExchange domain without subdomain should return an empty string")
+}

src/routes/options.go

@@ -2,9 +2,8 @@ package routes
 
 import (
 	"anonymousoverflow/config"
+	"anonymousoverflow/src/utils"
 	"fmt"
-	"os"
-	"strings"
 
 	"github.com/gin-gonic/gin"
 )
@@ -19,30 +18,12 @@ func ChangeOptions(c *gin.Context) {
 			text = "enabled"
 		}
 		c.SetCookie("disable_images", fmt.Sprintf("%t", !c.MustGet("disable_images").(bool)), 60*60*24*365*10, "/", "", false, true)
+		theme := utils.GetThemeFromEnv()
 		c.HTML(200, "home.html", gin.H{
 			"successMessage": "Images are now " + text,
-			"theme":          c.MustGet("theme").(string),
 			"version":        config.Version,
+			"theme":          theme,
 		})
-
-	case "theme":
-		text := "dark"
-		if c.MustGet("theme").(string) == "dark" {
-			text = "light"
-		}
-		c.SetCookie("theme", text, 60*60*24*365*10, "/", "", false, true)
-		// get redirect url from query
-		redirectUrl := c.Query("redirect_url")
-		if redirectUrl == "" {
-			redirectUrl = os.Getenv("APP_URL")
-		}
-
-		if !strings.HasPrefix(redirectUrl, os.Getenv("APP_URL")) {
-			redirectUrl = os.Getenv("APP_URL")
-		}
-
-		c.Redirect(302, redirectUrl)
-
 	default:
 		c.String(400, "400 Bad Request")
 	}

src/routes/question.go

@@ -29,46 +29,36 @@ var soSortValues = map[string]string{
 }
 
 func ViewQuestion(c *gin.Context) {
-	client := resty.New()
 
 	questionId := c.Param("id")
 	if _, err := strconv.Atoi(questionId); err != nil {
 		c.HTML(400, "home.html", gin.H{
 			"errorMessage": "Invalid question ID",
-			"theme":        c.MustGet("theme").(string),
 			"version":      config.Version,
 		})
 		return
 	}
 
-	questionTitle := c.Param("title")
-
-	sortValue := c.Query("sort_by")
-	if sortValue == "" {
-		sortValue = "votes"
-	}
-
-	soSortValue, ok := soSortValues[sortValue]
-	if !ok {
-		soSortValue = soSortValues["votes"]
-	}
-
-	soLink := fmt.Sprintf("https://stackoverflow.com/questions/%s/%s?answertab=%s", questionId, questionTitle, soSortValue)
-
-	resp, err := client.R().Get(soLink)
+	params, err := parseAndValidateParameters(c)
 	if err != nil {
-		c.HTML(500, "home.html", gin.H{
-			"errorMessage": "Unable to fetch question data",
-			"theme":        c.MustGet("theme").(string),
-			"version":      config.Version,
-		})
 		return
 	}
 
+	domain := "stackoverflow.com"
+
+	if strings.Contains(params.Sub, ".") {
+		domain = params.Sub
+	} else if params.Sub != "" {
+		domain = fmt.Sprintf("%s.stackexchange.com", params.Sub)
+	}
+
+	soLink := fmt.Sprintf("https://%s/questions/%s/%s?answertab=%s", domain, questionId, params.QuestionTitle, params.SoSortValue)
+
+	resp, err := fetchQuestionData(soLink)
+
 	if resp.StatusCode() != 200 {
 		c.HTML(500, "home.html", gin.H{
-			"errorMessage": "Received a non-OK status code",
-			"theme":        c.MustGet("theme").(string),
+			"errorMessage": fmt.Sprintf("Received a non-OK status code %d", resp.StatusCode()),
 			"version":      config.Version,
 		})
 		return
@@ -82,182 +72,28 @@ func ViewQuestion(c *gin.Context) {
 	if err != nil {
 		c.HTML(500, "home.html", gin.H{
 			"errorMessage": "Unable to parse question data",
-			"theme":        c.MustGet("theme").(string),
 			"version":      config.Version,
 		})
 		return
 	}
 
-	newFilteredQuestion := types.FilteredQuestion{}
-
-	questionTextParent := doc.Find("h1.fs-headline1")
-
-	questionText := questionTextParent.Children().First().Text()
-
-	newFilteredQuestion.Title = questionText
-
-	questionPostLayout := doc.Find("div.post-layout").First()
-
-	questionTags := utils.GetPostTags(questionPostLayout)
-	newFilteredQuestion.Tags = questionTags
-
-	questionBodyParent := doc.Find("div.s-prose")
-
-	questionBodyParentHTML, err := questionBodyParent.Html()
+	newFilteredQuestion, err := extractQuestionData(doc, domain)
 	if err != nil {
 		c.HTML(500, "home.html", gin.H{
-			"errorMessage": "Unable to parse question body",
-			"theme":        c.MustGet("theme").(string),
+			"errorMessage": "Failed to extract question data",
 			"version":      config.Version,
 		})
 		return
 	}
 
-	newFilteredQuestion.Body = template.HTML(utils.ReplaceImgTags(questionBodyParentHTML))
-
-	questionBodyText := questionBodyParent.Text()
-
-	// remove all whitespace to create the shortened body desc
-	shortenedBody := strings.TrimSpace(questionBodyText)
-
-	// remove all newlines
-	shortenedBody = strings.ReplaceAll(shortenedBody, "\n", " ")
-
-	// get the first 50 chars
-	shortenedBody = shortenedBody[:50]
-
-	newFilteredQuestion.ShortenedBody = shortenedBody
-
-	comments := utils.FindAndReturnComments(questionBodyParentHTML, questionPostLayout)
-	newFilteredQuestion.Comments = comments
-
-	// parse any code blocks and highlight them
-	answerCodeBlocks := questionCodeBlockRegex.FindAllString(questionBodyParentHTML, -1)
-	for _, codeBlock := range answerCodeBlocks {
-		codeBlock = utils.StripBlockTags(codeBlock)
-
-		// syntax highlight
-		highlightedCodeBlock := utils.HighlightSyntaxViaContent(codeBlock)
-
-		// replace the code block with the highlighted code block
-		questionBodyParentHTML = strings.Replace(questionBodyParentHTML, codeBlock, highlightedCodeBlock, 1)
-	}
-
-	questionCard := doc.Find("div.postcell")
-
-	questionMetadata := questionCard.Find("div.user-info")
-	questionTimestamp := ""
-	questionMetadata.Find("span.relativetime").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
-				questionTimestamp = s.Text()
-				return
-			}
-		}
-
-		// otherwise it's the second element
-		if i == 1 {
-			questionTimestamp = s.Text()
-			return
-		}
+	answers, err := extractAnswersData(doc, domain)
+	if err != nil {
+		c.HTML(500, "home.html", gin.H{
+			"errorMessage": "Failed to extract answer data",
+			"version":      config.Version,
 		})
-
-	newFilteredQuestion.Timestamp = questionTimestamp
-
-	userDetails := questionMetadata.Find("div.user-details")
-
-	questionAuthor := ""
-	questionAuthorURL := ""
-
-	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
-				questionAuthor = s.Text()
-				questionAuthorURL, _ = s.Attr("href")
 		return
 	}
-		}
-
-		// otherwise it's the second element
-		if i == 1 {
-			questionAuthor = s.Text()
-			questionAuthorURL, _ = s.Attr("href")
-			return
-		}
-	})
-
-	newFilteredQuestion.AuthorName = questionAuthor
-	newFilteredQuestion.AuthorURL = questionAuthorURL
-
-	answers := []types.FilteredAnswer{}
-
-	doc.Find("div.answer").Each(func(i int, s *goquery.Selection) {
-		newFilteredAnswer := types.FilteredAnswer{}
-
-		postLayout := s.Find("div.post-layout")
-		voteCell := postLayout.Find("div.votecell")
-		answerCell := postLayout.Find("div.answercell")
-		answerBody := answerCell.Find("div.s-prose")
-		answerBodyHTML, _ := answerBody.Html()
-
-		voteCount := html.EscapeString(voteCell.Find("div.js-vote-count").Text())
-
-		newFilteredAnswer.Upvotes = voteCount
-		newFilteredAnswer.IsAccepted = s.HasClass("accepted-answer")
-
-		answerFooter := s.Find("div.mt24")
-
-		answerAuthorURL := ""
-		answerAuthorName := ""
-		answerTimestamp := ""
-
-		answerFooter.Find("div.post-signature").Each(func(i int, s *goquery.Selection) {
-			answerAuthorDetails := s.Find("div.user-details")
-
-			if answerAuthorDetails.Length() == 0 {
-				return
-			}
-
-			if answerAuthorDetails.Length() > 1 {
-				if i == 0 {
-					return
-				}
-			}
-
-			answerAuthor := answerAuthorDetails.Find("a").First()
-
-			answerAuthorURL = html.EscapeString(answerAuthor.AttrOr("href", ""))
-			answerAuthorName = html.EscapeString(answerAuthor.Text())
-			answerTimestamp = html.EscapeString(s.Find("span.relativetime").Text())
-		})
-
-		newFilteredAnswer.AuthorName = answerAuthorName
-		newFilteredAnswer.AuthorURL = answerAuthorURL
-		newFilteredAnswer.Timestamp = answerTimestamp
-
-		// parse any code blocks and highlight them
-		answerCodeBlocks := codeBlockRegex.FindAllString(answerBodyHTML, -1)
-		for _, codeBlock := range answerCodeBlocks {
-			codeBlock = utils.StripBlockTags(codeBlock)
-
-			// syntax highlight
-			highlightedCodeBlock := utils.HighlightSyntaxViaContent(codeBlock)
-
-			// replace the code block with the highlighted code block
-			answerBodyHTML = strings.Replace(answerBodyHTML, codeBlock, highlightedCodeBlock, 1)
-		}
-
-		comments = utils.FindAndReturnComments(answerBodyHTML, postLayout)
-
-		newFilteredAnswer.Comments = comments
-		newFilteredAnswer.Body = template.HTML(utils.ReplaceImgTags(answerBodyHTML))
-
-		answers = append(answers, newFilteredAnswer)
-	})
 
 	imagePolicy := "'self' https:"
 
@@ -265,13 +101,174 @@ func ViewQuestion(c *gin.Context) {
 		imagePolicy = "'self'"
 	}
 
+	theme := utils.GetThemeFromEnv()
+
 	c.HTML(200, "question.html", gin.H{
 		"question":    newFilteredQuestion,
 		"answers":     answers,
 		"imagePolicy": imagePolicy,
-		"theme":       c.MustGet("theme").(string),
-		"currentUrl":  fmt.Sprintf("%s/questions/%s/%s", os.Getenv("APP_URL"), questionId, questionTitle),
-		"sortValue":   sortValue,
+		"currentUrl":  fmt.Sprintf("%s%s", os.Getenv("APP_URL"), c.Request.URL.Path),
+		"sortValue":   params.SoSortValue,
+		"domain":      domain,
+		"theme":       theme,
 	})
 
 }
+
+type viewQuestionInputs struct {
+	QuestionID    string
+	QuestionTitle string
+	SoSortValue   string
+	Sub           string
+}
+
+// parseAndValidateParameters consolidates the URL and query parameters into an easily-accessible struct.
+func parseAndValidateParameters(c *gin.Context) (inputs viewQuestionInputs, err error) {
+
+	questionId := c.Param("id")
+	if _, err = strconv.Atoi(questionId); err != nil {
+		c.HTML(400, "home.html", gin.H{
+			"errorMessage": "Invalid question ID",
+			"version":      config.Version,
+		})
+		return
+	}
+
+	inputs.QuestionID = questionId
+
+	sortValue := c.Query("sort_by")
+	if sortValue == "" {
+		sortValue = "votes"
+	}
+
+	soSortValue, ok := soSortValues[sortValue]
+	if !ok {
+		soSortValue = soSortValues["votes"]
+	}
+
+	inputs.SoSortValue = soSortValue
+
+	sub := c.Param("sub")
+
+	inputs.Sub = sub
+
+	return
+}
+
+// fetchQuestionData sends the request to StackOverflow.
+func fetchQuestionData(soLink string) (resp *resty.Response, err error) {
+	client := resty.New()
+	resp, err = client.R().Get(soLink)
+	return
+}
+
+// extractQuestionData parses the HTML document and extracts question data.
+func extractQuestionData(doc *goquery.Document, domain string) (question types.FilteredQuestion, err error) {
+	// Extract the question title.
+	questionTextParent := doc.Find("h1.fs-headline1").First()
+	question.Title = strings.TrimSpace(questionTextParent.Children().First().Text())
+
+	// Extract question tags.
+	questionTags := utils.GetPostTags(doc.Find("div.post-layout").First())
+	question.Tags = questionTags
+
+	// Extract and process the question body.
+	questionBodyParent := doc.Find("div.s-prose").First()
+	questionBodyParentHTML, err := questionBodyParent.Html()
+	if err != nil {
+		return question, err
+	}
+	question.Body = template.HTML(utils.ProcessHTMLBody(questionBodyParentHTML))
+
+	// Extract the shortened body description.
+	shortenedBody := strings.TrimSpace(questionBodyParent.Text())
+	shortenedBody = strings.ReplaceAll(shortenedBody, "\n", " ")
+	if len(shortenedBody) > 50 {
+		shortenedBody = shortenedBody[:50]
+	}
+	question.ShortenedBody = shortenedBody
+
+	// Extract question comments.
+	comments := utils.FindAndReturnComments(questionBodyParentHTML, domain, doc.Find("div.post-layout").First())
+	question.Comments = comments
+
+	// Extract question timestamp and author information.
+	questionCard := doc.Find("div.postcell").First()
+	extractMetadata(questionCard, &question, domain)
+
+	return
+}
+
+// extractMetadata extracts author and timestamp information from a given selection.
+func extractMetadata(selection *goquery.Selection, question *types.FilteredQuestion, domain string) {
+	questionMetadata := selection.Find("div.user-info").First()
+	question.Timestamp = questionMetadata.Find("span.relativetime").First().Text()
+
+	questionAuthorURL := "https://" + domain
+	questionAuthor := selection.Find("div.post-signature.owner div.user-info div.user-details a").First()
+	question.AuthorName = questionAuthor.Text()
+	questionAuthorURL += questionAuthor.AttrOr("href", "")
+	question.AuthorURL = questionAuthorURL
+
+	// Determine if the question has been edited and update author details accordingly.
+	isQuestionEdited := selection.Find("a.js-gps-track").Text() == "edited"
+	if isQuestionEdited {
+		editedAuthor := questionMetadata.Find("a").Last()
+		question.AuthorName = editedAuthor.Text()
+		question.AuthorURL = "https://" + domain + editedAuthor.AttrOr("href", "")
+	}
+}
+
+// extractAnswersData parses the HTML document and extracts answers data.
+func extractAnswersData(doc *goquery.Document, domain string) ([]types.FilteredAnswer, error) {
+	var answers []types.FilteredAnswer
+
+	// Iterate over each answer block.
+	doc.Find("div.answer").Each(func(i int, s *goquery.Selection) {
+		var answer types.FilteredAnswer
+
+		answer.ID = s.AttrOr("data-answerid", "")
+
+		postLayout := s.Find("div.post-layout").First()
+
+		// Extract upvotes.
+		voteCell := postLayout.Find("div.votecell").First()
+		voteCount := html.EscapeString(voteCell.Find("div.js-vote-count").Text())
+		answer.Upvotes = voteCount
+
+		// Check if the answer is accepted.
+		answer.IsAccepted = s.HasClass("accepted-answer")
+
+		// Extract answer body and process it.
+		answerCell := postLayout.Find("div.answercell").First()
+		answerBody := answerCell.Find("div.s-prose").First()
+		answerBodyHTML, _ := answerBody.Html()
+
+		// Process code blocks within the answer.
+		processedAnswerBody := utils.ProcessHTMLBody(answerBodyHTML)
+		answer.Body = template.HTML(processedAnswerBody)
+
+		answer.Comments = utils.FindAndReturnComments(answerBodyHTML, domain, postLayout)
+
+		// Extract author information and timestamp.
+		extractAnswerAuthorInfo(s, &answer, domain)
+
+		answers = append(answers, answer)
+	})
+
+	return answers, nil
+}
+
+// extractAnswerAuthorInfo extracts the author name, URL, and timestamp from an answer block.
+// It directly mutates the answer.
+func extractAnswerAuthorInfo(selection *goquery.Selection, answer *types.FilteredAnswer, domain string) {
+	authorDetails := selection.Find("div.post-signature").Last()
+
+	authorName := html.EscapeString(authorDetails.Find("div.user-details a").First().Text())
+	authorURL := "https://" + domain + authorDetails.Find("div.user-details a").AttrOr("href", "")
+	timestamp := html.EscapeString(authorDetails.Find("span.relativetime").Text())
+
+	answer.AuthorName = authorName
+	answer.AuthorURL = authorURL
+	answer.Timestamp = timestamp
+}

src/routes/shortened.go

@@ -0,0 +1,56 @@
+package routes
+
+import (
+	"fmt"
+	"net/http"
+	"os"
+	"strings"
+
+	"github.com/gin-gonic/gin"
+	"github.com/go-resty/resty/v2"
+)
+
+func RedirectShortenedOverflowURL(c *gin.Context) {
+	id := c.Param("id")
+	answerId := c.Param("answerId")
+	sub := c.Param("sub")
+
+	// fetch the stack overflow URL
+	client := resty.New()
+	client.SetRedirectPolicy(
+		resty.RedirectPolicyFunc(func(req *http.Request, via []*http.Request) error {
+			return http.ErrUseLastResponse
+		}),
+	)
+
+	domain := "www.stackoverflow.com"
+	if strings.Contains(sub, ".") {
+		domain = sub
+	} else if sub != "" {
+		domain = fmt.Sprintf("%s.stackexchange.com", sub)
+	}
+	resp, err := client.R().Get(fmt.Sprintf("https://%s/a/%s/%s", domain, id, answerId))
+	if err != nil {
+		c.HTML(400, "home.html", gin.H{
+			"errorMessage": "Unable to fetch stack overflow URL",
+		})
+		return
+	}
+
+	if resp.StatusCode() != 302 {
+		c.HTML(400, "home.html", gin.H{
+			"errorMessage": fmt.Sprintf("Unexpected HTTP status from origin: %d", resp.StatusCode()),
+		})
+		return
+	}
+
+	// get the redirect URL
+	location := resp.Header().Get("Location")
+
+	redirectPrefix := os.Getenv("APP_URL")
+	if sub != "" {
+		redirectPrefix += fmt.Sprintf("/exchange/%s", sub)
+	}
+
+	c.Redirect(302, fmt.Sprintf("%s%s", redirectPrefix, location))
+}

src/routes/version.go

@@ -0,0 +1,10 @@
+package routes
+
+import (
+	"anonymousoverflow/config"
+	"github.com/gin-gonic/gin"
+)
+
+func GetVersion(c *gin.Context) {
+	c.String(200, config.Version)
+}