code view

internal/codeview/codeview.go

@@ -0,0 +1,82 @@
+package codeview
+
+import (
+	"fmt"
+	"io"
+	"log/slog"
+	"net/http"
+	"strings"
+
+	"github.com/kulak/gemini"
+)
+
+/*
+ * Codeview is a feature that proxies my personal git server (forgejo)
+ * Allowing me to render code natively in gemini
+ *
+ * Features:
+ * - [ ] Individual file view with line numbers?
+ * - [ ] Dir view with links to files
+ * - [ ] Project root view with markdown to gemtxt conversion and file tree
+ */
+
+// https://git.travisshears.com/travisshears/personal-gemini-capsule/raw/branch/main/internal/guestbook/guestbook.go
+// /codeview/raw/personal-gemini-capsule/src/branch/main/internal/guestbook/guestbook.go
+func HandleRequest(w gemini.ResponseWriter, req *gemini.Request) {
+	path := req.URL.Path
+
+	switch {
+	// case path == "/gemlog" || path == "/gemlog/":
+	// g.serveIndex(w, req)
+	case strings.HasPrefix(path, "/codeview/raw/"):
+		serveFile(w, req, path)
+	default:
+		w.WriteStatusMsg(gemini.StatusNotFound, "Page not found")
+	}
+}
+
+func serveFile(w gemini.ResponseWriter, req *gemini.Request, path string) {
+	path = strings.TrimPrefix(path, "/codeview/raw/")
+	rawURL := strings.Replace(path, "src", "raw", 1)
+	rawURL = "https://git.travisshears.com/travisshears/" + rawURL
+	remoteURL := "https://git.travisshears.com/travisshears/" + path
+	httpReq, err := http.NewRequest("GET", rawURL, nil)
+	if err != nil {
+		slog.Error("Failed to create request to git server", "error", err)
+		w.WriteStatusMsg(gemini.StatusGeneralPermFail, "Problem connecting to git server")
+		return
+	}
+	res, err := http.DefaultClient.Do(httpReq)
+	if err != nil {
+		slog.Error("Failed to send request to git server", "error", err)
+		w.WriteStatusMsg(gemini.StatusGeneralPermFail, "Problem connecting to git server")
+		return
+	}
+	defer res.Body.Close()
+
+	body, err := io.ReadAll(res.Body)
+	if err != nil {
+		slog.Error("Failed to read res body", "error", err)
+		w.WriteStatusMsg(gemini.StatusGeneralPermFail, "Problem connecting to git server")
+		return
+	}
+
+	if res.StatusCode < 200 || res.StatusCode >= 300 {
+		slog.Error("unexpected status code", "statusCode", res.StatusCode, "body", string(body))
+		w.WriteStatusMsg(gemini.StatusGeneralPermFail, "Problem connecting to git server")
+		return
+	}
+
+	var content strings.Builder
+	w.WriteStatusMsg(gemini.StatusSuccess, "text/gemini")
+	// filename := strings.TrimPrefix(remoteURL, "https://git.travisshears.com/travisshears/")
+	// content.WriteString(fmt.Sprintf("# File: %s\n", filename))
+	content.WriteString("# File CodeView\n")
+	content.WriteString(fmt.Sprintf("This is a code view which proxies my personal git server. On the clearnet the following file is available at:\n=> %s %s\n\n", remoteURL, path))
+	content.WriteString("----------------------------\n\n")
+	content.WriteString("```code\n")
+	content.Write(body)
+	content.WriteString("```\n")
+	content.WriteString("\n\n-----------------------------\n\n=> / Back to home\n")
+	w.WriteBody([]byte(content.String()))
+}