From b5047f2607cea16ee2808d4abb05c26ea55bbcaa Mon Sep 17 00:00:00 2001
From: Matt Baer <matt@write.as>
Date: Thu, 28 Apr 2022 22:22:23 -0400
Subject: [PATCH] Create basic ActivityPub inspector utility

Prints AP information for a given URL.
---
 go.mod  |  3 +++
 main.go | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 52 insertions(+)
 create mode 100644 go.mod
 create mode 100644 main.go

diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..c9d6f9a
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module code.as/matt/ap-inspect
+
+go 1.18
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..14a86e7
--- /dev/null
+++ b/main.go
@@ -0,0 +1,49 @@
+package main
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"os"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		log.Fatalln("usage: ap-inspect BLOG-URL")
+	}
+	blogURL := os.Args[1]
+
+	// Set up request
+	req, err := http.NewRequest("GET", blogURL, nil)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	req.Header.Set("Accept", "application/activity+json")
+
+	// Send request
+	client := &http.Client{}
+	resp, err := client.Do(req)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	if resp != nil && resp.Body != nil {
+		defer resp.Body.Close()
+	}
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		log.Fatalln(err)
+	}
+	fmt.Printf("Status  : %s\n", resp.Status)
+
+	// Pretty-print the response
+	var fmttd bytes.Buffer
+	err = json.Indent(&fmttd, body, "", "  ")
+	if err != nil {
+		log.Fatalln(err)
+	}
+	fmt.Printf("Response:\n%s\n", fmttd.String())
+}