Revert "feat(GODT-1224): Add more test case."

This reverts commit 84d8336.
This reverts commit 8983745.
This reverts commit d4a5c59.

Which are no more needed since handled directly on gopenpgp level by this commit
ProtonMail/gopenpgp@b189309

Author: rlejeune74

message_send_types.go

@@ -137,22 +137,6 @@ func (req *SendDraftReq) AddTextPackage(
 	return nil
 }
 
-func (req *SendDraftReq) AddClearSignedPackage(
-	kr *crypto.KeyRing,
-	body string,
-	prefs map[string]SendPreferences,
-	attKeys map[string]*crypto.SessionKey,
-) error {
-	pkg, err := newClearSignedPackage(kr, body, prefs, attKeys)
-	if err != nil {
-		return err
-	}
-
-	req.Packages = append(req.Packages, pkg)
-
-	return nil
-}
-
 func newMIMEPackage(
 	kr *crypto.KeyRing,
 	mimeBody string,
@@ -216,7 +200,7 @@ func newTextPackage(
 	prefs map[string]SendPreferences,
 	attKeys map[string]*crypto.SessionKey,
 ) (*MessagePackage, error) {
-	if !(mimeType == rfc822.TextPlain || mimeType == rfc822.TextHTML) {
+	if mimeType != rfc822.TextPlain && mimeType != rfc822.TextHTML {
 		return nil, fmt.Errorf("invalid MIME type for package: %s", mimeType)
 	}
 
@@ -233,7 +217,13 @@ func newTextPackage(
 		}
 
 		if prefs.SignatureType == DetachedSignature && !prefs.Encrypt {
-			return nil, fmt.Errorf("text package cannot contain clear-signed body")
+			if prefs.EncryptionScheme == PGPInlineScheme {
+				return nil, fmt.Errorf("invalid encryption scheme for %s: %d", addr, prefs.EncryptionScheme)
+			}
+
+			if prefs.EncryptionScheme == ClearScheme && mimeType != rfc822.TextPlain {
+				return nil, fmt.Errorf("invalid MIME type for clear package: %s", mimeType)
+			}
 		}
 
 		if prefs.EncryptionScheme == InternalScheme && !prefs.Encrypt {
@@ -298,63 +288,8 @@ func newTextPackage(
 	return pkg, nil
 }
 
-func newClearSignedPackage(
-	kr *crypto.KeyRing,
-	body string,
-	prefs map[string]SendPreferences,
-	attKeys map[string]*crypto.SessionKey,
-) (*MessagePackage, error) {
-	encBody, err := kr.Encrypt(crypto.NewPlainMessage([]byte(body)), kr)
-	if err != nil {
-		return nil, fmt.Errorf("failed to encrypt MIME body: %w", err)
-	}
-
-	splitEncBody, err := encBody.SplitMessage()
-	if err != nil {
-		return nil, fmt.Errorf("failed to split message: %w", err)
-	}
-
-	decBodyKey, err := kr.DecryptSessionKey(splitEncBody.GetBinaryKeyPacket())
-	if err != nil {
-		return nil, fmt.Errorf("failed to decrypt session key: %w", err)
-	}
-
-	pkg := newMessagePackage(rfc822.TextPlain, splitEncBody.GetBinaryDataPacket())
-
-	for addr, prefs := range prefs {
-		if prefs.MIMEType != rfc822.TextPlain {
-			return nil, fmt.Errorf("invalid MIME type for clear signed package: %s", prefs.MIMEType)
-		}
-
-		if prefs.SignatureType != DetachedSignature {
-			return nil, fmt.Errorf("clear signed package must contain detached signature")
-		}
-
-		if prefs.Encrypt || prefs.EncryptionScheme != ClearScheme {
-			return nil, fmt.Errorf("clear signed package cannot be encrypted")
-		}
-
-		pkg.BodyKey = newSessionKey(decBodyKey)
-
-		for attID, attKey := range attKeys {
-			pkg.AttachmentKeys[attID] = newSessionKey(attKey)
-		}
-
-		recipient := &MessageRecipient{
-			Type:                 prefs.EncryptionScheme,
-			Signature:            prefs.SignatureType,
-			AttachmentKeyPackets: make(map[string]string),
-		}
-
-		pkg.Addresses[addr] = recipient
-		pkg.Type |= prefs.EncryptionScheme
-	}
-
-	return pkg, nil
-}
-
 func encSplit(kr *crypto.KeyRing, body string) (*crypto.SessionKey, []byte, error) {
-	encBody, err := kr.Encrypt(crypto.NewPlainMessage([]byte(body)), kr)
+	encBody, err := kr.Encrypt(crypto.NewPlainMessageFromString(body), kr)
 	if err != nil {
 		return nil, nil, fmt.Errorf("failed to encrypt MIME body: %w", err)
 	}

message_send_types_test.go

@@ -290,7 +290,7 @@ func TestSendDraftReq_AddPackage(t *testing.T) {
 				EncryptionScheme: proton.ClearScheme,
 				MIMEType:         rfc822.TextPlain,
 			}},
-			wantErr: true,
+			wantErr: false,
 		},
 		{
 			name:     "clear plain text with bad scheme (error)",
@@ -380,74 +380,3 @@ func TestSendDraftReq_AddPackage(t *testing.T) {
 		})
 	}
 }
-
-func TestSendDraftReq_AddClearPackage(t *testing.T) {
-	key, err := crypto.GenerateKey("name", "email", "rsa", 2048)
-	require.NoError(t, err)
-
-	kr, err := crypto.NewKeyRing(key)
-	require.NoError(t, err)
-
-	tests := []struct {
-		name    string
-		body    string
-		prefs   map[string]proton.SendPreferences
-		attKeys map[string]*crypto.SessionKey
-		wantErr bool
-	}{
-		{
-			name: "clear plain text with signature",
-			body: "this is a text/plain body",
-			prefs: map[string]proton.SendPreferences{"[email protected]": {
-				Encrypt:          false,
-				SignatureType:    proton.DetachedSignature,
-				EncryptionScheme: proton.ClearScheme,
-				MIMEType:         rfc822.TextPlain,
-			}},
-			wantErr: false,
-		},
-		{
-			name: "clear plain text with bad scheme (error)",
-			body: "this is a text/plain body",
-			prefs: map[string]proton.SendPreferences{"[email protected]": {
-				Encrypt:          false,
-				SignatureType:    proton.DetachedSignature,
-				EncryptionScheme: proton.PGPInlineScheme,
-				MIMEType:         rfc822.TextPlain,
-			}},
-			wantErr: true,
-		},
-		{
-			name: "clear rich text with signature (error)",
-			body: "this is a text/html body",
-			prefs: map[string]proton.SendPreferences{"[email protected]": {
-				Encrypt:          false,
-				SignatureType:    proton.DetachedSignature,
-				EncryptionScheme: proton.ClearScheme,
-				MIMEType:         rfc822.TextHTML,
-			}},
-			wantErr: true,
-		},
-		{
-			name: "clear plain text with signature",
-			body: "this is a text/plain body",
-			prefs: map[string]proton.SendPreferences{"[email protected]": {
-				Encrypt:          true,
-				SignatureType:    proton.DetachedSignature,
-				EncryptionScheme: proton.ClearScheme,
-				MIMEType:         rfc822.TextPlain,
-			}},
-			wantErr: true,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			var req proton.SendDraftReq
-
-			if err := req.AddClearSignedPackage(kr, tt.body, tt.prefs, tt.attKeys); (err != nil) != tt.wantErr {
-				t.Errorf("SendDraftReq.AddPackage() error = %v, wantErr %v", err, tt.wantErr)
-			}
-		})
-	}
-}