some additional QOL changes, bookmarking...etc

README.md

@@ -15,6 +15,7 @@ Pinata takes very little memory to run, about 8MB of memory with an Alpine docke
 Port 8080 is needed to run with this method; Docker is most recommended if that is taken.
 
 * Clone this repo.
+* (optional, but bookmarks will be unavailable) ``head -c 32 /dev/urandom | base64`` and then ``export PINATA_BOOKMARK_KEY=resultofpreviouscommand``.
 * ``go build -trimpath -ldflags="-s -w" -o pinata ./main.go``
 * Wait a few seconds for that tasty binary.
 * Run in background with ``./pinata &``
@@ -22,6 +23,6 @@ Port 8080 is needed to run with this method; Docker is most recommended if that
 ### Docker Compose (recommended)
 
 * Clone this repo.
-* Tweak ``compose.yml`` as you see fit.
+* Tweak ``compose.yml`` as you see fit and follow instructions if you want to enable bookmarks.
 * ``sudo docker compose up -d`` to build and run.
 * Need to update? ``git pull && docker compose up -d --build``

compose.yml

@@ -1,7 +1,12 @@
-version: "3.8"
 services:
   pinata:
     build: .
     ports:
       - "127.0.0.1:8080:8080"
+    environment:
+      # Set this to a key generated with the "head -c 32 /dev/urandom | base64" command if you want to enable bookmarks for users; this allows cookies to be encrypted so you'll never see their searches.
+      - PINATA_BOOKMARK_KEY=
+      # The reverse image search uses Tineye, which often requires Cloudflare! If you aren't comfortable with it, set this variable to 0.
+      - PINATA_DISABLE_REVERSE=1
     restart: unless-stopped
+

main.go

@@ -3,6 +3,9 @@ package main
 
 import (
 	"context"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
 	"encoding/base64"
 	"encoding/json"
 	"html"
@@ -11,11 +14,12 @@ import (
 	"net"
 	"net/http"
 	"net/url"
+	"os"
 	"strings"
+	"sync"
 	"time"
 )
 
-// ------------------- Config & globals -------------------
 var httpClient = &http.Client{
 	Timeout: 15 * time.Second,
 	Transport: &http.Transport{
@@ -23,96 +27,240 @@ var httpClient = &http.Client{
 			Timeout:   8 * time.Second,
 			KeepAlive: 30 * time.Second,
 		}).DialContext,
-		MaxIdleConns:        10, // small pool to reduce memory
-		MaxIdleConnsPerHost: 6,
+		MaxIdleConns:        6,
+		MaxIdleConnsPerHost: 3,
 		IdleConnTimeout:     60 * time.Second,
 		TLSHandshakeTimeout: 8 * time.Second,
 	},
 }
 
-const pinterestSearchURL = "https://www.pinterest.com/resource/BaseSearchResource/get/"
+var copyBufPool = sync.Pool{
+	New: func() any {
+		b := make([]byte, 32*1024)
+		return &b
+	},
+}
 
-// ------------------- Static CSS & HTML header/footer -------------------
+const pinterestSearchURL = "https://www.pinterest.com/resource/BaseSearchResource/get/"
+const cookieName = "pinata_bm"
+
+// -- bookmark encryption key (32 bytes) --
+var bookmarkKey []byte
+var bookmarkingEnabled bool
+var disableReverse bool
+
+func init() {
+    if kb := os.Getenv("PINATA_BOOKMARK_KEY"); kb != "" {
+        if decoded, err := base64.StdEncoding.DecodeString(kb); err == nil && len(decoded) == 32 {
+            bookmarkKey = decoded
+            bookmarkingEnabled = true
+            log.Println("Bookmarking enabled")
+        } else {
+            log.Println("PINATA_BOOKMARK_KEY provided but invalid; bookmarking disabled")
+            bookmarkingEnabled = false
+        }
+    } else {
+        log.Println("PINATA_BOOKMARK_KEY not set; bookmarking disabled")
+        bookmarkingEnabled = false
+    }
+
+    // New: whether to disable reverse image search (Tineye)
+    disableEnv := strings.ToLower(strings.TrimSpace(os.Getenv("PINATA_DISABLE_REVERSE")))
+    if disableEnv == "1" || disableEnv == "true" || disableEnv == "yes" {
+        disableReverse = true
+        log.Println("Reverse image search disabled via PINATA_DISABLE_REVERSE")
+    } else {
+        disableReverse = false
+    }
+}
+
+// encrypt a JSON list of strings -> base64 url safe
+func encryptBookmarks(items []string) (string, error) {
+	plain, _ := json.Marshal(items)
+	block, err := aes.NewCipher(bookmarkKey)
+	if err != nil {
+		return "", err
+	}
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", err
+	}
+	nonce := make([]byte, gcm.NonceSize())
+	if _, err := rand.Read(nonce); err != nil {
+		return "", err
+	}
+	ciphertext := gcm.Seal(nonce, nonce, plain, nil)
+	return base64.RawURLEncoding.EncodeToString(ciphertext), nil
+}
+
+// decrypt base64 cookie -> list of strings
+func decryptBookmarks(encoded string) ([]string, error) {
+	data, err := base64.RawURLEncoding.DecodeString(encoded)
+	if err != nil {
+		return nil, err
+	}
+	block, err := aes.NewCipher(bookmarkKey)
+	if err != nil {
+		return nil, err
+	}
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return nil, err
+	}
+	ns := gcm.NonceSize()
+	if len(data) < ns {
+		return nil, err
+	}
+	nonce := data[:ns]
+	ct := data[ns:]
+	plain, err := gcm.Open(nil, nonce, ct, nil)
+	if err != nil {
+		return nil, err
+	}
+	var items []string
+	if err := json.Unmarshal(plain, &items); err != nil {
+		return nil, err
+	}
+	return items, nil
+}
+
+// helper to read bookmarks from request cookie (returns empty slice if none or invalid)
+func readBookmarksFromReq(r *http.Request) []string {
+	if !bookmarkingEnabled {
+		return nil
+	}
+	c, err := r.Cookie(cookieName)
+	if err != nil || c.Value == "" {
+		return nil
+	}
+	items, err := decryptBookmarks(c.Value)
+	if err != nil {
+		return nil
+	}
+	return items
+}
+
+// helper to set bookmarks cookie
+func setBookmarksCookie(w http.ResponseWriter, items []string) {
+	if !bookmarkingEnabled {
+		return
+	}
+	// sanitize and truncate each item
+	trunc := make([]string, 0, len(items))
+	for _, s := range items {
+		s = strings.TrimSpace(s)
+		if s == "" {
+			continue
+		}
+		if len(s) > 64 {
+			s = s[:64]
+		}
+		trunc = append(trunc, s)
+		if len(trunc) >= 30 {
+			break
+		}
+	}
+	enc, err := encryptBookmarks(trunc)
+	if err != nil {
+		// fail silently (do not set)
+		return
+	}
+	c := &http.Cookie{
+		Name:     cookieName,
+		Value:    enc,
+		Path:     "/",
+		HttpOnly: true,              // not accessible to JS (we have no JS but keeps it private)
+		SameSite: http.SameSiteLaxMode,
+		// Secure:   true, // keep commented for local HTTP dev - set true in production behind TLS
+		MaxAge: 60 * 60 * 24 * 365 * 10, // ~10 years
+	}
+	http.SetCookie(w, c)
+}
+
+// remove bookmark and reset cookie
+func removeBookmarkCookie(w http.ResponseWriter, items []string) {
+	// if empty, clear cookie
+	if len(items) == 0 {
+		c := &http.Cookie{
+			Name:     cookieName,
+			Value:    "",
+			Path:     "/",
+			HttpOnly: true,
+			MaxAge:   -1,
+		}
+		http.SetCookie(w, c)
+		return
+	}
+	setBookmarksCookie(w, items)
+}
+
+// ----- CSS and HTML (no JS) -----
 const cssContent = `
 :root{--bg:#0b0f17;--muted:#94a3b8;--text:#e6e6ff;--accent:#7c3aed;--card-shadow:rgba(0,0,0,0.6)}
-*{box-sizing:border-box}body{margin:0;padding:20px;background:linear-gradient(180deg,#071020 0%,#0b0f17 100%);color:var(--text);font-family:ui-monospace,Menlo,Monaco,monospace}
-.header{display:flex;gap:12px;align-items:center;margin-bottom:18px}.brand{font-size:20px;font-weight:700;color:var(--accent);text-decoration:none}.search-box{margin-left:auto;display:flex;gap:8px;align-items:center}input[type="text"]{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:8px 12px;color:var(--text);min-width:240px;border-radius:8px;outline:none}button[type="submit"]{background:linear-gradient(90deg,var(--accent),#5b21b6);color:white;border:none;padding:8px 12px;border-radius:8px;cursor:pointer}
-.img-container{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;align-items:start;margin-top:18px}
-.card{position:relative;border-radius:10px;overflow:hidden;background:linear-gradient(180deg,rgba(255,255,255,0.01),rgba(255,255,255,0.02));box-shadow:0 6px 18px rgba(3,7,18,0.6);border:1px solid rgba(124,58,237,0.06)}
-.card img{display:block;width:100%;height:auto;object-fit:cover;background:#08101a}
+*{box-sizing:border-box}html,body{height:100%}body{margin:0;padding:20px;background:linear-gradient(180deg,#071020 0%,#0b0f17 100%);color:var(--text);font-family:ui-monospace,Menlo,Monaco,monospace}
+a{color:inherit}
+.header{display:flex;gap:12px;align-items:center;margin-bottom:18px;flex-wrap:wrap}
+.brand{font-size:20px;font-weight:700;color:var(--accent);text-decoration:none}
+.search-box{margin-left:auto;display:flex;gap:8px;align-items:center;flex:0 1 auto}
+.search-block{width:100%;display:flex;gap:8px;margin-top:14px}
+.search-inline{display:flex;gap:8px;align-items:center;min-width:0}
+input[type="text"]{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:8px 12px;color:var(--text);min-width:120px;border-radius:8px;outline:none}
+button[type="submit"],.btn-save{background:linear-gradient(90deg,var(--accent),#5b21b6);color:white;border:none;padding:8px 12px;border-radius:8px;cursor:pointer}
+.btn-save{font-weight:600}
+.img-container { column-width: 260px; column-gap: 16px; width: 100%; max-width: 1400px; margin-top: 18px; }
+.card { display:inline-block; width:100%; margin:0 0 16px; border-radius:10px; overflow:hidden; background:linear-gradient(180deg,rgba(255,255,255,0.01),rgba(255,255,255,0.02)); box-shadow:0 6px 18px rgba(3,7,18,0.6); border:1px solid rgba(124,58,237,0.06); break-inside: avoid; -webkit-column-break-inside: avoid; -moz-column-break-inside: avoid; min-height:0; position:relative; }
+.card img { display:block; width:100%; height:auto; object-fit:cover; background:#08101a; }
 .magnifier{position:absolute;top:8px;right:8px;background:rgba(0,0,0,0.45);border:1px solid rgba(255,255,255,0.06);color:var(--text);padding:6px;border-radius:999px;font-size:14px;width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;text-decoration:none;transition:transform .12s ease,background .12s ease}
-.magnifier:hover{transform:translateY(-2px);background:linear-gradient(180deg,rgba(124,58,237,0.14),rgba(124,58,237,0.08));color:white;cursor:pointer}
-.pagination{text-align:center;margin:26px 0}.pagination a{color:var(--accent);text-decoration:none;padding:8px 12px;border-radius:8px;border:1px solid rgba(124,58,237,0.12);background:rgba(124,58,237,0.02)}
+.magnifier:hover{transform:translateY(-2px);background:linear-gradient(180deg,rgba(124,58,237,0.14),rgba(124,58,237,0.08));color:white}
+.bookmarks{margin-left:12px;color:var(--muted);font-size:14px}
+.bookmark-list{margin-top:10px;display:flex;gap:8px;flex-wrap:wrap}
+.bookmark-pill{background:rgba(255,255,255,0.03);padding:6px 8px;border-radius:999px;border:1px solid rgba(255,255,255,0.04);font-size:13px;display:flex;gap:6px;align-items:center}
+.bookmark-pill form{display:inline}
+.bookmark-remove-btn{background:transparent;border:none;color:#ff7b7b;font-weight:700;cursor:pointer;padding:0 6px}
+.pagination{text-align:center;margin:26px 0}
+.pagination a{color:var(--accent);text-decoration:none;padding:8px 12px;border-radius:8px;border:1px solid rgba(124,58,237,0.12);background:rgba(124,58,237,0.02)}
 .footer-note{color:var(--muted);font-size:12px;margin-top:22px}
-`
-
-const indexHTML = `<!doctype html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>Pinata - Search</title>
-<link rel="stylesheet" href="/static/style.css">
-</head>
-<body>
-<div class="header">
-  <a class="brand" href="/">Pinata</a>
-  <div class="search-box">
-    <form method="get" action="/search" style="display:flex;gap:8px;align-items:center;">
-      <input type="text" name="q" placeholder="Search Image" required maxlength="64">
-      <button type="submit">Search</button>
-    </form>
-  </div>
-</div>
-<div style="color:#94a3b8">Search images from Pinterest — click an image to open, or use the magnifier to search Tineye.</div>
-</body>
-</html>
-`
-
-// header for streamed results; we write query directly escaped
-func resultsHeader(query string) string {
-	return `<!doctype html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>` + html.EscapeString(query) + ` - Pinata</title>
-<link rel="stylesheet" href="/static/style.css">
-</head>
-<body>
-<div class="header" style="margin-bottom:8px;">
-  <a class="brand" href="/">Pinata</a>
-  <div style="margin-left:auto;">
-    <form method="get" action="/search" style="display:flex;gap:8px;align-items:center;">
-      <input type="text" name="q" value="` + html.EscapeString(query) + `" maxlength="64">
-      <button type="submit">Search</button>
-    </form>
-  </div>
-</div>
-<h2 style="margin:4px 0 0 0;">Results for "` + html.EscapeString(query) + `"</h2>
-<div class="img-container">`
+@media (max-width:640px){
+  body{padding:12px;font-size:18px}
+  .brand{font-size:22px}
+  input[type="text"]{min-width:120px;padding:12px 14px;font-size:16px}
+  button[type="submit"],.btn-save{padding:10px 14px;font-size:16px;border-radius:10px}
+  .img-container{column-width:180px;column-gap:12px}
+  .search-block{gap:10px;flex-direction:column}
+  .search-inline{width:100%}
+  .search-box{margin-left:0;width:100%}
+  .bookmarks{order:3;width:100%;margin-top:8px}
 }
-
-const resultsFooterPrefix = `</div>` // close img-container; will append pagination and footer after streaming
-
-const footerHTML = `
-{{PAGINATION}}
-<div class="footer-note">Powered by Pinata • Reverse search via Tineye</div>
-</body>
-</html>
 `
 
-// ------------------- Handlers -------------------
-func styleHandler(w http.ResponseWriter, r *http.Request) {
-	w.Header().Set("Content-Type", "text/css; charset=utf-8")
-	_, _ = w.Write([]byte(cssContent))
-}
-
+// Static index page (no JS). Bookmarks rendered server-side only here.
 func indexHandler(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	_, _ = w.Write([]byte(indexHTML))
+	// header and intro
+	io.WriteString(w, `<!doctype html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>Pinata - Search</title><link rel="stylesheet" href="/static/style.css"></head><body>`)
+	io.WriteString(w, `<div class="header"><a class="brand" href="/">Pinata</a><div class="search-box"></div></div>`)
+	io.WriteString(w, `<div style="color:#94a3b8; margin-bottom:12px;">Search images from Pinterest — submit a search to view results.</div>`)
+	// search block
+	io.WriteString(w, `<form class="search-block" method="get" action="/search"><input type="text" name="q" placeholder="Search Image" required maxlength="64"><button type="submit">Search</button></form>`)
+
+	// bookmarks area (server-rendered)
+	if bookmarkingEnabled {
+		items := readBookmarksFromReq(r)
+		io.WriteString(w, `<div class="bookmarks"><div style="font-size:14px;color:var(--muted);margin-top:8px">Saved searches</div><div class="bookmark-list">`)
+		for _, q := range items {
+			escaped := html.EscapeString(q)
+			// Each bookmark pill: link to /search?q=... and a small form to remove
+			io.WriteString(w, `<span class="bookmark-pill"><a href="/search?q=`+url.QueryEscape(q)+`">`+escaped+`</a>`)
+			// remove form
+			io.WriteString(w, `<form method="post" action="/bookmark_remove" style="display:inline;margin:0 0 0 6px;"><input type="hidden" name="q" value="`+html.EscapeString(q)+`"><button class="bookmark-remove-btn" type="submit" title="Remove">✕</button></form></span>`)
+		}
+		io.WriteString(w, `</div></div>`)
+	}
+
+	io.WriteString(w, `<div class="footer-note">Powered by Pinata • Reverse search via Tineye</div></body></html>`)
 }
 
-// searchHandler streams Pinterest response and writes each card as it's decoded.
-// It captures csrftoken cookie and bookmark; bookmark is used to render the "Next" link at the end.
+// Search streaming handler (same streaming approach as before), includes server-side Save form when bookmarkingEnabled
 func searchHandler(w http.ResponseWriter, r *http.Request) {
 	q := strings.TrimSpace(r.URL.Query().Get("q"))
 	if len(q) < 1 || len(q) > 64 {
@@ -122,7 +270,6 @@ func searchHandler(w http.ResponseWriter, r *http.Request) {
 	bookmark := r.URL.Query().Get("bookmark")
 	csrftoken := r.URL.Query().Get("csrftoken")
 
-	// Build data param JSON (same structure as PHP)
 	dataObj := map[string]any{"options": map[string]any{"query": q}}
 	if bookmark != "" {
 		dataObj["options"].(map[string]any)["bookmarks"] = []string{bookmark}
@@ -160,7 +307,6 @@ func searchHandler(w http.ResponseWriter, r *http.Request) {
 	}
 	defer resp.Body.Close()
 
-	// capture csrftoken if set by server (we return it via pagination link)
 	var newCsrf string
 	for _, c := range resp.Cookies() {
 		if strings.EqualFold(c.Name, "csrftoken") {
@@ -169,44 +315,49 @@ func searchHandler(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	// Start streaming HTML
+	// start streaming HTML
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	_, _ = w.Write([]byte(resultsHeader(q)))
+	io.WriteString(w, `<!doctype html><html><head><meta charset="utf-8"><meta name="viewport" content="width=device-width,initial-scale=1"><title>`+html.EscapeString(q)+` - Pinata</title><link rel="stylesheet" href="/static/style.css"></head><body>`)
+	// header with inline search and server-side Save form (if enabled)
+	io.WriteString(w, `<div class="header" style="margin-bottom:8px;"><a class="brand" href="/">Pinata</a><div class="search-box">`)
+	// inline search form
+	io.WriteString(w, `<form class="search-inline" method="get" action="/search"><input type="text" name="q" value="`+html.EscapeString(q)+`" maxlength="64"><button type="submit">Search</button></form>`)
+	// Save form: POSTs to /bookmark with q and next back to the current results page
+	if bookmarkingEnabled {
+		// next param to return to this search page (use URL-encoded /search?q=...)
+		next := "/search?q=" + url.QueryEscape(q)
+		io.WriteString(w, `<form method="post" action="/bookmark" style="margin-left:8px;"><input type="hidden" name="q" value="`+html.EscapeString(q)+`"><input type="hidden" name="next" value="`+html.EscapeString(next)+`"><button class="btn-save" type="submit">Save</button></form>`)
+	}
+	io.WriteString(w, `</div></div>`)
+	io.WriteString(w, `<h2 style="margin:4px 0 0 0;">Results for "`+html.EscapeString(q)+`"</h2>`)
+	io.WriteString(w, `<div class="img-container">`)
 
 	dec := json.NewDecoder(resp.Body)
-
-	// We'll find "results" array and iterate it; also capture "bookmark" value
 	var nextBookmark string
 
-	// Use token streaming to find the "results" key and the "bookmark" key.
 	for {
 		tk, err := dec.Token()
 		if err != nil {
 			if err == io.EOF {
 				break
 			}
-			// parsing error: finish gracefully
 			log.Printf("json token error: %v", err)
 			break
 		}
-		// We're looking for string keys
 		key, ok := tk.(string)
 		if !ok {
 			continue
 		}
 		switch key {
 		case "results":
-			// next token should be '['
 			t, err := dec.Token()
 			if err != nil {
 				log.Printf("unexpected json after results: %v", err)
 				continue
 			}
 			if delim, ok := t.(json.Delim); !ok || delim != '[' {
-				// not an array, continue
 				continue
 			}
-			// iterate results array: decode each result object into a small struct
 			var rObj struct {
 				Images struct {
 					Orig struct {
@@ -215,7 +366,6 @@ func searchHandler(w http.ResponseWriter, r *http.Request) {
 				} `json:"images"`
 			}
 			for dec.More() {
-				// decode one result; this allocates a very small struct each time
 				if err := dec.Decode(&rObj); err != nil {
 					log.Printf("error decoding result item: %v", err)
 					break
@@ -224,25 +374,21 @@ func searchHandler(w http.ResponseWriter, r *http.Request) {
 				if u == "" {
 					continue
 				}
-				// write card HTML for this image (escape values)
 				esc := url.QueryEscape(u)
 				b64 := base64.StdEncoding.EncodeToString([]byte(u))
-				// card html
-				_, _ = io.WriteString(w, `<div class="card">`)
-				_, _ = io.WriteString(w, `<a href="/image_proxy?url=`+esc+`" style="display:block;">`)
-				_, _ = io.WriteString(w, `<img loading="lazy" src="/image_proxy?url=`+esc+`" alt="image">`)
-				_, _ = io.WriteString(w, `</a>`)
-				_, _ = io.WriteString(w, `<a class="magnifier" href="/revsearch?b64=`+b64+`" title="Search Tineye" target="_blank">🔍</a>`)
-				_, _ = io.WriteString(w, `</div>`)
-				// flush to client if possible (net/http does buffering internally)
+				var cardBuilder strings.Builder
+				cardBuilder.WriteString(`<div class="card"><a href="/image_proxy?url=` + esc + `" style="display:block;"><img loading="lazy" src="/image_proxy?url=` + esc + `" alt="image"></a>`)
+				if !disableReverse {
+ 					cardBuilder.WriteString(`<a class="magnifier" href="/revsearch?b64=` + b64 + `" title="Search Tineye" target="_blank">🔍</a>`)
+				}
+				cardBuilder.WriteString(`</div>`)
+				io.WriteString(w, cardBuilder.String())
 				if f, ok := w.(http.Flusher); ok {
 					f.Flush()
 				}
 			}
-			// consume closing ']' token
-			_, _ = dec.Token()
+			_, _ = dec.Token() // consume closing
 		case "bookmark":
-			// next token should be the bookmark string (or null)
 			t, err := dec.Token()
 			if err == nil {
 				if s, ok := t.(string); ok {
@@ -250,17 +396,15 @@ func searchHandler(w http.ResponseWriter, r *http.Request) {
 				}
 			}
 		default:
-			// ignore other keys
 			continue
 		}
 	}
 
-	// Close the img-container
-	_, _ = io.WriteString(w, resultsFooterPrefix)
+	// close container
+	io.WriteString(w, `</div>`)
 
-	// Render pagination if we have a bookmark
+	// show pagination link if present
 	if nextBookmark != "" {
-		// Build next link with csrftoken if present
 		qenc := url.QueryEscape(q)
 		benc := url.QueryEscape(nextBookmark)
 		cenc := ""
@@ -270,17 +414,78 @@ func searchHandler(w http.ResponseWriter, r *http.Request) {
 			cenc = "&csrftoken=" + url.QueryEscape(csrftoken)
 		}
 		next := "/search?q=" + qenc + "&bookmark=" + benc + cenc
-		_, _ = io.WriteString(w, `<div class="pagination"><a href="`+html.EscapeString(next)+`">Next page</a></div>`)
+		io.WriteString(w, `<div class="pagination"><a href="`+html.EscapeString(next)+`">Next page</a></div>`)
 	}
 
-	// Footer
-	_, _ = io.WriteString(w, `<div class="footer-note">Powered by Pinata • Reverse search via Tineye</div>`)
-	_, _ = io.WriteString(w, `</body></html>`)
-
-	// done
+	io.WriteString(w, `<div class="footer-note">Powered by Pinata • Reverse search via Tineye</div></body></html>`)
 }
 
-// imageProxyHandler streams remote image bodies directly to the client (no buffering)
+// POST /bookmark : server-side saving of a bookmark (no JS). expects form q and optional next.
+func bookmarkPostHandler(w http.ResponseWriter, r *http.Request) {
+	if !bookmarkingEnabled {
+		http.Redirect(w, r, "/", http.StatusSeeOther)
+		return
+	}
+	if err := r.ParseForm(); err != nil {
+		http.Redirect(w, r, "/", http.StatusSeeOther)
+		return
+	}
+	q := strings.TrimSpace(r.FormValue("q"))
+	if q == "" || len(q) > 64 {
+		http.Redirect(w, r, "/", http.StatusSeeOther)
+		return
+	}
+	next := r.FormValue("next")
+	if next == "" {
+		next = "/"
+	}
+	// read existing
+	items := readBookmarksFromReq(r)
+	// remove if exists then prepend
+	newItems := make([]string, 0, 32)
+	newItems = append(newItems, q)
+	for _, v := range items {
+		if v == q {
+			continue
+		}
+		newItems = append(newItems, v)
+		if len(newItems) >= 30 {
+			break
+		}
+	}
+	setBookmarksCookie(w, newItems)
+	http.Redirect(w, r, next, http.StatusSeeOther)
+}
+
+// POST /bookmark_remove : remove a bookmark (form q)
+func bookmarkRemoveHandler(w http.ResponseWriter, r *http.Request) {
+	if !bookmarkingEnabled {
+		http.Redirect(w, r, "/", http.StatusSeeOther)
+		return
+	}
+	if err := r.ParseForm(); err != nil {
+		http.Redirect(w, r, "/", http.StatusSeeOther)
+		return
+	}
+	q := strings.TrimSpace(r.FormValue("q"))
+	items := readBookmarksFromReq(r)
+	if len(items) == 0 {
+		http.Redirect(w, r, "/", http.StatusSeeOther)
+		return
+	}
+	out := make([]string, 0, len(items))
+	for _, v := range items {
+		if v == q {
+			continue
+		}
+		out = append(out, v)
+	}
+	// set or clear cookie
+	removeBookmarkCookie(w, out)
+	http.Redirect(w, r, "/", http.StatusSeeOther)
+}
+
+// imageProxy uses pooled buffer for io.CopyBuffer
 func imageProxyHandler(w http.ResponseWriter, r *http.Request) {
 	uq := r.URL.Query().Get("url")
 	if uq == "" {
@@ -299,7 +504,7 @@ func imageProxyHandler(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "failed", http.StatusBadGateway)
 		return
 	}
-	req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:144.0) Gecko/20100101 Firefox/144.0")
+	req.Header.Set("User-Agent", "PinataGo/1.0")
 	resp, err := httpClient.Do(req)
 	if err != nil {
 		http.Error(w, "failed to fetch", http.StatusBadGateway)
@@ -307,7 +512,6 @@ func imageProxyHandler(w http.ResponseWriter, r *http.Request) {
 	}
 	defer resp.Body.Close()
 
-	// copy only needed headers
 	if ct := resp.Header.Get("Content-Type"); ct != "" {
 		w.Header().Set("Content-Type", ct)
 	}
@@ -315,11 +519,19 @@ func imageProxyHandler(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Cache-Control", cc)
 	}
 	w.WriteHeader(resp.StatusCode)
-	_, _ = io.Copy(w, resp.Body)
+
+	bufPtr := copyBufPool.Get().(*[]byte)
+	buf := *bufPtr
+	_, _ = io.CopyBuffer(w, resp.Body, buf)
+	copyBufPool.Put(bufPtr)
 }
 
-// revsearchHandler decodes base64 and redirects to Tineye
+// revsearch redirect to tineye
 func revsearchHandler(w http.ResponseWriter, r *http.Request) {
+	if disableReverse {
+        	http.Error(w, "Reverse image search disabled", http.StatusNotFound)
+        	return
+    	}
 	b64 := r.URL.Query().Get("b64")
 	if b64 == "" {
 		http.Error(w, "b64 required", http.StatusBadRequest)
@@ -339,6 +551,12 @@ func revsearchHandler(w http.ResponseWriter, r *http.Request) {
 	http.Redirect(w, r, tineye, http.StatusSeeOther)
 }
 
+// static CSS
+func styleHandler(w http.ResponseWriter, r *http.Request) {
+	w.Header().Set("Content-Type", "text/css; charset=utf-8")
+	io.WriteString(w, cssContent)
+}
+
 func main() {
 	mux := http.NewServeMux()
 	mux.HandleFunc("/static/style.css", styleHandler)
@@ -346,6 +564,9 @@ func main() {
 	mux.HandleFunc("/search", searchHandler)
 	mux.HandleFunc("/image_proxy", imageProxyHandler)
 	mux.HandleFunc("/revsearch", revsearchHandler)
+	// bookmark endpoints (POST)
+	mux.HandleFunc("/bookmark", bookmarkPostHandler)
+	mux.HandleFunc("/bookmark_remove", bookmarkRemoveHandler)
 
 	srv := &http.Server{
 		Addr:         ":8080",
@@ -354,6 +575,6 @@ func main() {
 		WriteTimeout: 30 * time.Second,
 		IdleTimeout:  60 * time.Second,
 	}
-	log.Println("Pinata listening on :8080 (streaming mode, low allocations)")
+	log.Println("Pinata listening on :8080")
 	log.Fatal(srv.ListenAndServe())
 }