grasp: spread stuff into multiple files.

2025-12-01 09:42:34 -03:00
parent 4b8fc31c23
commit 020e4a8f56
6 changed files with 787 additions and 726 deletions
@@ -0,0 +1,86 @@
+package grasp
+
+import (
+	"fmt"
+	"net/http"
+	"regexp"
+	"strings"
+
+	"fiatjaf.com/nostr"
+	"fiatjaf.com/nostr/nip19"
+)
+
+var asciiPattern = regexp.MustCompile(`^[\w-.]+$`)
+
+// handleGitRequest validates .git suffix and decodes npub, then calls the handler
+func (gs *GraspServer) handleGitRequest(
+	w http.ResponseWriter,
+	r *http.Request,
+	base http.Handler,
+	handler func(http.ResponseWriter,
+		*http.Request,
+		nostr.PubKey,
+		string,
+	),
+) {
+	npub := r.PathValue("npub")
+	repoWithGit := r.PathValue("repo")
+
+	// validate .git suffix
+	if !strings.HasSuffix(repoWithGit, ".git") {
+		base.ServeHTTP(w, r)
+		return
+	}
+
+	repoName := strings.TrimSuffix(repoWithGit, ".git")
+
+	// validate repo name
+	if !asciiPattern.MatchString(repoName) {
+		http.Error(w, "invalid repository name", 400)
+		return
+	}
+
+	// decode npub to pubkey
+	_, value, err := nip19.Decode(npub)
+	if err != nil {
+		http.Error(w, "invalid npub", 400)
+		return
+	}
+	pk, ok := value.(nostr.PubKey)
+	if !ok {
+		http.Error(w, "invalid npub", 400)
+		return
+	}
+
+	handler(w, r, pk, repoName)
+}
+
+// serveRepoPage serves a webpage for the repository
+func (gs *GraspServer) serveRepoPage(w http.ResponseWriter, r *http.Request, npub, repoName string) {
+	w.Header().Set("Content-Type", "text/html")
+	html := fmt.Sprintf(`<!DOCTYPE html>
+<html>
+<head>
+	<title>%s/%s - NIP-34 Git Repository</title>
+	<style>
+		body { font-family: sans-serif; max-width: 800px; margin: 50px auto; padding: 20px; }
+		h1 { color: #333; }
+		code { background: #f4f4f4; padding: 2px 6px; border-radius: 3px; }
+		pre { background: #f4f4f4; padding: 15px; border-radius: 5px; overflow-x: auto; }
+		.info { background: #e7f3ff; padding: 15px; border-left: 4px solid #2196F3; margin: 20px 0; }
+	</style>
+</head>
+<body>
+	<h1>Repository: %s/%s</h1>
+	<div class="info">
+		<p>This is a NIP-34 git repository served over Nostr.</p>
+	</div>
+	<h2>Clone this repository</h2>
+	<p>Use a git-nostr client to clone:</p>
+	<pre>git clone %s/%s/%s.git</pre>
+	<h2>Browse</h2>
+	<p>Use a git-nostr web client or Nostr client to browse this repository.</p>
+</body>
+</html>`, npub, repoName, npub, repoName, r.Host, npub, repoName)
+	fmt.Fprint(w, html)
+}