From 580dec5b89215310ce34341e11ff17fe38bdb63a Mon Sep 17 00:00:00 2001
From: FChannel <>
Date: Sun, 8 May 2022 14:57:40 -0700
Subject: more cleanup, logging and error logging everywhere things are mostly
 in place can work on "features" and polish

---
 db/pem.go | 95 ---------------------------------------------------------------
 1 file changed, 95 deletions(-)
 delete mode 100644 db/pem.go

(limited to 'db/pem.go')

diff --git a/db/pem.go b/db/pem.go
deleted file mode 100644
index 66bf25a..0000000
--- a/db/pem.go
+++ /dev/null
@@ -1,95 +0,0 @@
-package db
-
-import (
-	"crypto"
-	"crypto/rsa"
-	"crypto/sha256"
-	"crypto/x509"
-	"encoding/base64"
-	"encoding/pem"
-	"strings"
-	"time"
-
-	"github.com/FChannel0/FChannel-Server/activitypub"
-	"github.com/FChannel0/FChannel-Server/webfinger"
-	"github.com/gofiber/fiber/v2"
-)
-
-func VerifyHeaderSignature(ctx *fiber.Ctx, actor activitypub.Actor) bool {
-	s := activitypub.ParseHeaderSignature(ctx.Get("Signature"))
-
-	var method string
-	var path string
-	var host string
-	var date string
-	var digest string
-	var contentLength string
-
-	var sig string
-	for i, e := range s.Headers {
-		var nl string
-		if i < len(s.Headers)-1 {
-			nl = "\n"
-		}
-
-		switch e {
-		case "(request-target)":
-			method = strings.ToLower(ctx.Method())
-			path = ctx.Path()
-			sig += "(request-target): " + method + " " + path + "" + nl
-			break
-		case "host":
-			host = ctx.Hostname()
-			sig += "host: " + host + "" + nl
-			break
-		case "date":
-			date = ctx.Get("date")
-			sig += "date: " + date + "" + nl
-			break
-		case "digest":
-			digest = ctx.Get("digest")
-			sig += "digest: " + digest + "" + nl
-			break
-		case "content-length":
-			contentLength = ctx.Get("content-length")
-			sig += "content-length: " + contentLength + "" + nl
-			break
-		}
-	}
-
-	if s.KeyId != actor.PublicKey.Id {
-		return false
-	}
-
-	t, _ := time.Parse(time.RFC1123, date)
-
-	if time.Now().UTC().Sub(t).Seconds() > 75 {
-		return false
-	}
-
-	if ActivityVerify(actor, s.Signature, sig) != nil {
-		return false
-	}
-
-	return true
-}
-
-func ActivityVerify(actor activitypub.Actor, signature string, verify string) error {
-	sig, _ := base64.StdEncoding.DecodeString(signature)
-
-	if actor.PublicKey.PublicKeyPem == "" {
-		_actor, err := webfinger.FingerActor(actor.Id)
-		if err != nil {
-			return err
-		}
-		actor = _actor
-	}
-
-	block, _ := pem.Decode([]byte(actor.PublicKey.PublicKeyPem))
-	pub, _ := x509.ParsePKIXPublicKey(block.Bytes)
-
-	hashed := sha256.New()
-	hashed.Write([]byte(verify))
-
-	return rsa.VerifyPKCS1v15(pub.(*rsa.PublicKey), crypto.SHA256, hashed.Sum(nil), sig)
-}
-- 
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