Add self-hosted RCS backend, extension, and ops tooling

Ship the Go/SQLite API and Web UI, Chrome/Brave capture addon,
Docker Compose, Pangolin reverse-proxy support, and a user-crontab
watchdog so the binary stays running without systemd.
This commit is contained in:
2026-08-06 22:02:45 +02:00
parent 3f05c97e1f
commit 5a0e2e630b
30 changed files with 4334 additions and 2 deletions
+61
View File
@@ -0,0 +1,61 @@
document.querySelectorAll(".copy-url").forEach((button) => {
button.addEventListener("click", async () => {
const url = button.getAttribute("data-url");
if (!url) return;
try {
await navigator.clipboard.writeText(url);
const hint = button.parentElement.querySelector(".copied-hint");
if (hint) {
hint.hidden = false;
setTimeout(() => {
hint.hidden = true;
}, 1500);
}
} catch (err) {
console.error("copy failed", err);
}
});
});
(function setupLightbox() {
const lightbox = document.getElementById("lightbox");
const lightboxImg = document.getElementById("lightbox-img");
if (!lightbox || !lightboxImg) {
console.warn("[RCS] lightbox elements missing");
return;
}
function openLightbox(src) {
lightboxImg.src = src;
lightbox.hidden = false;
lightbox.setAttribute("aria-hidden", "false");
document.body.classList.add("lightbox-open");
}
function closeLightbox() {
lightbox.hidden = true;
lightbox.setAttribute("aria-hidden", "true");
lightboxImg.removeAttribute("src");
document.body.classList.remove("lightbox-open");
}
// Event delegation so thumbs work even if markup is re-rendered later.
document.addEventListener("click", (event) => {
const thumb = event.target.closest(".shot-thumb");
if (thumb) {
event.preventDefault();
const src = thumb.getAttribute("data-full") || (thumb.querySelector("img") && thumb.querySelector("img").src);
if (src) openLightbox(src);
return;
}
if (event.target === lightbox || event.target.classList.contains("lightbox-close")) {
closeLightbox();
}
});
document.addEventListener("keydown", (event) => {
if (event.key === "Escape" && !lightbox.hidden) {
closeLightbox();
}
});
})();
+263
View File
@@ -0,0 +1,263 @@
:root {
--bg: #0f1419;
--panel: #1a222c;
--text: #e7ecf1;
--muted: #8b98a5;
--accent: #ff4500;
--accent-2: #4a9eff;
--ok: #1f6f4a;
--warn: #7a5b12;
--error: #8b2e2e;
--border: #2c3640;
--font: "IBM Plex Sans", "Segoe UI", sans-serif;
--mono: "IBM Plex Mono", ui-monospace, monospace;
}
* { box-sizing: border-box; }
body {
margin: 0;
font-family: var(--font);
background:
radial-gradient(1200px 600px at 10% -10%, #243041 0%, transparent 60%),
radial-gradient(900px 500px at 100% 0%, #2a1c14 0%, transparent 55%),
var(--bg);
color: var(--text);
min-height: 100vh;
}
.site-header {
display: flex;
flex-wrap: wrap;
gap: 1.5rem;
align-items: end;
justify-content: space-between;
padding: 1.5rem clamp(1rem, 3vw, 2.5rem);
border-bottom: 1px solid var(--border);
background: color-mix(in srgb, var(--panel) 85%, transparent);
backdrop-filter: blur(8px);
}
.brand h1 {
margin: 0;
font-size: 2rem;
letter-spacing: 0.04em;
}
.brand p {
margin: 0.15rem 0 0;
color: var(--muted);
}
.search {
display: flex;
flex-wrap: wrap;
gap: 0.75rem;
align-items: end;
}
.search label {
display: flex;
flex-direction: column;
gap: 0.35rem;
font-size: 0.8rem;
color: var(--muted);
}
.search input {
min-width: 12rem;
padding: 0.55rem 0.7rem;
border: 1px solid var(--border);
border-radius: 6px;
background: var(--bg);
color: var(--text);
}
button, .btn {
appearance: none;
border: 0;
border-radius: 6px;
padding: 0.55rem 0.9rem;
background: var(--accent);
color: #fff;
font-weight: 600;
cursor: pointer;
text-decoration: none;
display: inline-flex;
align-items: center;
}
.btn.secondary {
background: var(--accent-2);
}
button:disabled {
opacity: 0.45;
cursor: not-allowed;
}
.banner {
margin: 1rem clamp(1rem, 3vw, 2.5rem);
padding: 0.75rem 1rem;
border-radius: 6px;
}
.banner.error { background: var(--error); }
.banner.warn { background: var(--warn); }
.banner.ok { background: var(--ok); }
main {
padding: 1rem clamp(1rem, 3vw, 2.5rem) 3rem;
}
.empty {
color: var(--muted);
}
.results {
list-style: none;
margin: 0;
padding: 0;
display: grid;
gap: 1rem;
}
.result {
background: var(--panel);
border: 1px solid var(--border);
border-radius: 10px;
padding: 1rem;
}
.meta {
display: flex;
flex-wrap: wrap;
gap: 0.4rem 0.6rem;
align-items: baseline;
margin-bottom: 0.5rem;
}
.muted { color: var(--muted); }
.permalink { color: var(--accent-2); }
.body {
white-space: pre-wrap;
line-height: 1.45;
margin: 0 0 0.75rem;
}
.shot {
margin: 0.5rem 0 0.25rem;
}
.shot-thumb {
appearance: none;
border: 1px solid var(--border);
border-radius: 6px;
padding: 0;
background: #000;
cursor: zoom-in;
display: inline-flex;
flex-direction: column;
align-items: stretch;
max-width: min(100%, 420px);
overflow: hidden;
}
.shot-thumb img {
display: block;
max-width: 100%;
height: auto;
vertical-align: middle;
}
.shot-hint {
font-size: 0.75rem;
color: var(--muted);
background: color-mix(in srgb, var(--panel) 90%, #000);
padding: 0.35rem 0.55rem;
text-align: left;
}
.no-shot {
margin: 0.35rem 0 0.5rem;
font-size: 0.85rem;
}
.lightbox {
position: fixed;
inset: 0;
z-index: 1000;
display: flex;
align-items: center;
justify-content: center;
background: rgba(0, 0, 0, 0.82);
padding: 1.5rem;
}
.lightbox[hidden] {
display: none !important;
}
.lightbox img {
max-width: min(96vw, 1100px);
max-height: 90vh;
border-radius: 8px;
border: 1px solid var(--border);
box-shadow: 0 12px 40px rgba(0, 0, 0, 0.45);
background: #111;
}
.lightbox-close {
position: absolute;
top: 0.75rem;
right: 1rem;
border: 0;
background: transparent;
color: #fff;
font-size: 2rem;
line-height: 1;
cursor: pointer;
}
body.lightbox-open {
overflow: hidden;
}
.actions {
display: flex;
flex-wrap: wrap;
gap: 0.5rem;
align-items: center;
margin-top: 0.75rem;
}
.pager {
display: flex;
flex-wrap: wrap;
gap: 0.75rem 1rem;
align-items: center;
justify-content: space-between;
margin-top: 1.25rem;
padding-top: 1rem;
border-top: 1px solid var(--border);
}
.pager-meta {
color: var(--muted);
font-size: 0.9rem;
}
.pager-links {
display: flex;
gap: 0.5rem;
}
.btn.secondary.disabled,
span.btn.secondary.disabled {
opacity: 0.4;
cursor: default;
pointer-events: none;
}
code { font-family: var(--mono); }
+104
View File
@@ -0,0 +1,104 @@
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>RCS — Reddit Comment Saver</title>
<link rel="stylesheet" href="/static/style.css">
</head>
<body>
<header class="site-header">
<div class="brand">
<h1>RCS</h1>
<p>Reddit Comment Saver</p>
</div>
<form class="search" method="get" action="/">
<label>
Username
<input type="text" name="user" value="{{.User}}" placeholder="spez">
</label>
<label>
Free text (GLOB)
<input type="text" name="q" value="{{.Query}}" placeholder="*bla*bla*">
</label>
<button type="submit">Search</button>
</form>
</header>
{{if .Error}}
<div class="banner error">{{.Error}}</div>
{{end}}
{{if .Flash}}
<div class="banner ok">{{.Flash}}</div>
{{end}}
{{if not .ImgurOn}}
<div class="banner warn">Imgur export is disabled until <code>IMGUR_CLIENT_ID</code> is set on the server.</div>
{{end}}
<main>
{{if not .Results}}
<p class="empty">No comments yet. Browse Reddit with the RCS extension connected to this backend.</p>
{{else}}
<ul class="results">
{{range .Results}}
<li class="result" data-comment-id="{{.RedditCommentID}}">
<div class="meta">
<strong>u/{{.AuthorName}}</strong>
<span class="muted">on</span>
<span>{{.PostTitle}}</span>
<a class="permalink" href="{{.Permalink}}" target="_blank" rel="noopener">Reddit</a>
</div>
<p class="body">{{snippet .Body}}</p>
{{if .ScreenshotPath}}
<div class="shot">
<button type="button" class="shot-thumb" data-full="{{screenshotURL .ScreenshotPath}}" aria-label="Preview screenshot">
<img src="{{screenshotURL .ScreenshotPath}}" alt="Comment screenshot" loading="lazy">
<span class="shot-hint">Click to enlarge</span>
</button>
</div>
{{else}}
<p class="muted no-shot">No screenshot</p>
{{end}}
<div class="actions">
{{if hasImgur .ImgurURL}}
<a class="btn" href="{{.ImgurURL}}" target="_blank" rel="noopener">Open on Imgur</a>
<button type="button" class="btn secondary copy-url" data-url="{{.ImgurURL}}">Copy URL</button>
<span class="muted copied-hint" hidden>Copied</span>
{{else}}
<form method="post" action="/export/{{.RedditCommentID}}">
<input type="hidden" name="q" value="{{$.Query}}">
<input type="hidden" name="user" value="{{$.User}}">
<input type="hidden" name="page" value="{{$.Page}}">
<button type="submit" class="btn" {{if not $.ImgurOn}}disabled{{end}}>Export to Imgur</button>
</form>
{{end}}
</div>
</li>
{{end}}
</ul>
<nav class="pager" aria-label="Pagination">
<span class="pager-meta">Page {{.Page}} of {{.TotalPages}} ({{.Total}} total)</span>
<div class="pager-links">
{{if .HasPrev}}
<a class="btn secondary" href="{{pageURL . .PrevPage}}">Newer</a>
{{else}}
<span class="btn secondary disabled">Newer</span>
{{end}}
{{if .HasNext}}
<a class="btn secondary" href="{{pageURL . .NextPage}}">Older</a>
{{else}}
<span class="btn secondary disabled">Older</span>
{{end}}
</div>
</nav>
{{end}}
</main>
<div id="lightbox" class="lightbox" hidden>
<button type="button" class="lightbox-close" aria-label="Close preview">&times;</button>
<img id="lightbox-img" alt="Screenshot preview">
</div>
<script src="/static/app.js"></script>
</body>
</html>
+233
View File
@@ -0,0 +1,233 @@
package web
import (
"embed"
"fmt"
"html/template"
"io/fs"
"net/http"
"net/url"
"path/filepath"
"strconv"
"strings"
"github.com/go-chi/chi/v5"
"github.com/squid/rcs/backend/internal/config"
"github.com/squid/rcs/backend/internal/db"
"github.com/squid/rcs/backend/internal/imgur"
)
const pageSize = 50
//go:embed templates/* static/*
var assets embed.FS
// UI serves the search Web UI.
type UI struct {
cfg config.Config
store *db.Store
imgur *imgur.Client
tmpl *template.Template
}
// New creates the Web UI.
func New(cfg config.Config, store *db.Store, imgurClient *imgur.Client) (*UI, error) {
tmpl, err := template.New("").Funcs(template.FuncMap{
"hasImgur": func(url string) bool { return strings.TrimSpace(url) != "" },
"snippet": func(body string) string {
body = strings.TrimSpace(body)
if len(body) > 280 {
return body[:280] + "…"
}
return body
},
"screenshotURL": func(path string) string {
if path == "" {
return ""
}
return "/screenshots/" + filepath.Base(path)
},
"pageURL": func(data pageData, page int) string {
values := url.Values{}
if data.Query != "" {
values.Set("q", data.Query)
}
if data.User != "" {
values.Set("user", data.User)
}
if page > 1 {
values.Set("page", strconv.Itoa(page))
}
encoded := values.Encode()
if encoded == "" {
return "/"
}
return "/?" + encoded
},
}).ParseFS(assets, "templates/*.html")
if err != nil {
return nil, fmt.Errorf("parse templates: %w", err)
}
return &UI{cfg: cfg, store: store, imgur: imgurClient, tmpl: tmpl}, nil
}
// StaticHandler serves embedded CSS/JS.
func (u *UI) StaticHandler() http.Handler {
sub, err := fs.Sub(assets, "static")
if err != nil {
return http.NotFoundHandler()
}
return http.StripPrefix("/static/", http.FileServer(http.FS(sub)))
}
type pageData struct {
Query string
User string
Results []db.SearchResult
Error string
Flash string
ImgurOn bool
Page int
TotalPages int
Total int
HasPrev bool
HasNext bool
PrevPage int
NextPage int
}
func parsePage(raw string) int {
page, err := strconv.Atoi(strings.TrimSpace(raw))
if err != nil || page < 1 {
return 1
}
return page
}
// HandleIndex renders search results.
func (u *UI) HandleIndex(w http.ResponseWriter, r *http.Request) {
q := strings.TrimSpace(r.URL.Query().Get("q"))
user := strings.TrimSpace(r.URL.Query().Get("user"))
flash := strings.TrimSpace(r.URL.Query().Get("flash"))
errMsg := strings.TrimSpace(r.URL.Query().Get("error"))
page := parsePage(r.URL.Query().Get("page"))
data := pageData{
Query: q,
User: user,
Flash: flash,
Error: errMsg,
ImgurOn: u.imgur.Enabled(),
Page: page,
}
total, err := u.store.CountComments(r.Context(), q, user)
if err != nil {
data.Error = err.Error()
} else {
data.Total = total
data.TotalPages = total / pageSize
if total%pageSize != 0 {
data.TotalPages++
}
if data.TotalPages == 0 {
data.TotalPages = 1
}
if page > data.TotalPages {
page = data.TotalPages
data.Page = page
}
data.HasPrev = page > 1
data.HasNext = page < data.TotalPages
data.PrevPage = page - 1
data.NextPage = page + 1
offset := (page - 1) * pageSize
results, err := u.store.SearchComments(r.Context(), q, user, pageSize, offset)
if err != nil {
data.Error = err.Error()
} else {
data.Results = results
}
}
w.Header().Set("Content-Type", "text/html; charset=utf-8")
if err := u.tmpl.ExecuteTemplate(w, "index.html", data); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
}
// HandleExport uploads a comment screenshot to Imgur (or returns existing URL).
func (u *UI) HandleExport(w http.ResponseWriter, r *http.Request) {
id := chi.URLParam(r, "id")
q := strings.TrimSpace(r.FormValue("q"))
if q == "" {
q = strings.TrimSpace(r.URL.Query().Get("q"))
}
user := strings.TrimSpace(r.FormValue("user"))
if user == "" {
user = strings.TrimSpace(r.URL.Query().Get("user"))
}
pageRaw := strings.TrimSpace(r.FormValue("page"))
if pageRaw == "" {
pageRaw = strings.TrimSpace(r.URL.Query().Get("page"))
}
page := parsePage(pageRaw)
redirect := func(flash, errMsg string) {
values := url.Values{}
if q != "" {
values.Set("q", q)
}
if user != "" {
values.Set("user", user)
}
if page > 1 {
values.Set("page", strconv.Itoa(page))
}
if flash != "" {
values.Set("flash", flash)
}
if errMsg != "" {
values.Set("error", errMsg)
}
target := "/"
if encoded := values.Encode(); encoded != "" {
target += "?" + encoded
}
http.Redirect(w, r, target, http.StatusSeeOther)
}
comment, err := u.store.GetCommentByRedditID(r.Context(), id)
if err != nil {
redirect("", err.Error())
return
}
if comment == nil {
redirect("", "comment not found")
return
}
if comment.ImgurURL != "" {
redirect("Already exported", "")
return
}
if comment.ScreenshotPath == "" {
redirect("", "no screenshot for this comment")
return
}
absPath := comment.ScreenshotPath
if !filepath.IsAbs(absPath) {
absPath = filepath.Join(u.cfg.DataDir, absPath)
}
link, err := u.imgur.UploadFile(absPath)
if err != nil {
redirect("", err.Error())
return
}
if err := u.store.SetImgurURL(r.Context(), id, link); err != nil {
redirect("", err.Error())
return
}
redirect("Exported to Imgur", "")
}