Handle S/MIME encrypt, decrypt, sign and very everywhere #259

dev/App/User.js

@@ -35,7 +35,7 @@ import { AccountUserStore } from 'Stores/User/Account';
 import { ContactUserStore } from 'Stores/User/Contact';
 import { FolderUserStore } from 'Stores/User/Folder';
 import { PgpUserStore } from 'Stores/User/Pgp';
-import { SMimeUserStore } from 'Stores/User/SMime';
+//import { SMimeUserStore } from 'Stores/User/SMime';
 import { MessagelistUserStore } from 'Stores/User/Messagelist';
 import { ThemeStore, initThemes } from 'Stores/Theme';
 import { LanguageStore } from 'Stores/Language';
@@ -217,7 +217,8 @@ export class AppUser extends AbstractApp {
 						setInterval(reloadTime, 60000);
 
 						PgpUserStore.init();
-						SMimeUserStore.loadCertificates();
+// TODO:
+//						SMimeUserStore.loadCertificates();
 
 						setTimeout(() => mailToHelper(SettingsGet('mailToEmail')), 500);
 

dev/Mime/Utils.js

@@ -12,7 +12,6 @@ import { EmailModel } from 'Model/Email';
  */
 export function MimeToMessage(data, message)
 {
-	let signed;
 	const struct = ParseMime(data);
 	if (struct.headers) {
 		let html = struct.getByContentType('text/html'),
@@ -65,12 +64,21 @@ export function MimeToMessage(data, message)
 				} else {
 					message.attachments.push(attachment);
 				}
-			} else if ('multipart/signed' === type.value && 'application/pgp-signature' === type.params.protocol) {
-				signed = {
-					micAlg: type.micalg,
-					bodyPart: part.parts[0],
-					sigPart: part.parts[1]
-				};
+			} else if ('multipart/signed' === type.value) {
+				let protocol = type.params.protocol;
+				if ('application/pgp-signature' === protocol) {
+					message.pgpSigned({
+						micAlg: type.micalg,
+						bodyPart: part.parts[0],
+						sigPart: part.parts[1]
+					});
+				} else if ('application/pkcs7-signature' === protocol.replace('x-')) {
+					message.smimeSigned({
+						micAlg: type.micalg,
+						bodyPart: part,
+						detached: true
+					});
+				}
 			}
 		});
 
@@ -81,10 +89,9 @@ export function MimeToMessage(data, message)
 		message.plain(data);
 	}
 
-	if (!signed && message.plain().includes(BEGIN_PGP_MESSAGE)) {
-		signed = true;
+	if (message.plain().includes(BEGIN_PGP_MESSAGE)) {
+		message.pgpSigned(true);
 	}
-	message.pgpSigned(signed);
 
 	// TODO: Verify instantly?
 }

dev/View/Popup/Compose.js

@@ -33,6 +33,7 @@ import { PgpUserStore } from 'Stores/User/Pgp';
 import { OpenPGPUserStore } from 'Stores/User/OpenPGP';
 import { GnuPGUserStore } from 'Stores/User/GnuPG';
 //import { OpenPgpImportPopupView } from 'View/Popup/OpenPgpImport';
+import { SMimeUserStore } from 'Stores/User/SMime';
 
 import { MessageUserStore } from 'Stores/User/Message';
 import { MessagelistUserStore } from 'Stores/User/Messagelist';
@@ -377,21 +378,21 @@ export class ComposePopupView extends AbstractViewPopup {
 					});
 					this.pgpSignKey(result)
 				});
-				this.initPgpEncrypt();
+				this.initEncrypt();
 			},
 
 			cc: value => {
 				if (false === this.showCc() && value.length) {
 					this.showCc(true);
 				}
-				this.initPgpEncrypt();
+				this.initEncrypt();
 			},
 
 			bcc: value => {
 				if (false === this.showBcc() && value.length) {
 					this.showBcc(true);
 				}
-				this.initPgpEncrypt();
+				this.initEncrypt();
 			},
 
 			replyTo: value => {
@@ -410,7 +411,7 @@ export class ComposePopupView extends AbstractViewPopup {
 				if (this.emptyToError() && value.length) {
 					this.emptyToError(false);
 				}
-				this.initPgpEncrypt();
+				this.initEncrypt();
 			},
 
 			attachmentsInProcess: value => {
@@ -1387,7 +1388,7 @@ export class ComposePopupView extends AbstractViewPopup {
 			].join(',').split(',').map(value => getEmail(value.trim())).validUnique();
 	}
 
-	initPgpEncrypt() {
+	initEncrypt() {
 		const recipients = this.allRecipients();
 		PgpUserStore.hasPublicKeyForEmails(recipients).then(result => {
 			console.log({canPgpEncrypt:result});
@@ -1401,6 +1402,14 @@ export class ComposePopupView extends AbstractViewPopup {
 //				this.dropMailvelope();
 			}
 		});
+		const count = recipients.length,
+			identity = this.currentIdentity(),
+			from = (identity.smimeKey() && identity.smimeCertificate()) ? identity.email() : null,
+			length = count ? recipients.filter(email =>
+				email == from
+				|| SMimeUserStore.find(certificate => email == certificate.emailAddress && certificate.smimeencrypt)
+			).length : 0;
+		this.canSMimeEncrypt(length && length === count);
 	}
 
 	async getMessageRequestParams(sSaveFolder, draft)
@@ -1561,12 +1570,13 @@ export class ComposePopupView extends AbstractViewPopup {
 					// Does encrypt attachments
 					params.encryptFingerprints = JSON.stringify(GnuPGUserStore.getPublicKeyFingerprints(recipients));
 					autocrypt();
-/*
-				} else if (identity && identity.smimeCertificate()) {
-					// TODO: S/MIME certificates of all recipients
+				} else if (this.canSMimeEncrypt() && identity && identity.smimeKey() && identity.smimeCertificate()) {
 					params.encryptCertificates = [identity.smimeCertificate()];
-				}
-*/
+					SMimeUserStore.forEach(certificate => {
+						certificate.emailAddress != identity.email()
+						&& recipients.includes(certificate.emailAddress)
+						&& params.encryptCertificates.push(certificate.id)
+					});
 				} else {
 					throw 'Encryption with ' + encrypt + ' not yet implemented';
 				}

snappymail/v/0.0.0/app/libraries/RainLoop/Actions/Messages.php

@@ -1194,6 +1194,17 @@ trait Messages
 				$oMessage->Attachments()->Clear();
 
 				$SMIME = $this->SMIME();
+				$certificates = $SMIME->certificates();
+				// Load certificates by id
+				foreach ($aCertificates as &$sCertificate) {
+					if (!\str_contains($sCertificate, '-----BEGIN CERTIFICATE-----')) {
+						foreach ($certificates as $certificate) {
+							if ($certificate['id'] === $sCertificate) {
+								$sCertificate = $SMIME->getCertificate($certificate['file']);
+							}
+						}
+					}
+				}
 				$sEncrypted = $SMIME->encrypt($tmp, $aCertificates);
 
 				$oPart = new MimePart;

snappymail/v/0.0.0/app/libraries/RainLoop/Actions/SMime.php

@@ -114,34 +114,37 @@ trait SMime
 
 	public function DoSMimeVerifyMessage() : array
 	{
-		$sFolderName = $this->GetActionParam('folder', '');
-		$iUid = (int) $this->GetActionParam('uid', 0);
-		$sPartId = $this->GetActionParam('partId', '');
-		$sMicAlg = $this->GetActionParam('micAlg', '');
+		$sBody = $this->GetActionParam('bodyPart', '');
 		$bDetached = !empty($this->GetActionParam('detached', 0));
+		if (!$sBody) {
+			$sFolderName = $this->GetActionParam('folder', '');
+			$iUid = (int) $this->GetActionParam('uid', 0);
+			$sPartId = $this->GetActionParam('partId', '');
+			$sMicAlg = $this->GetActionParam('micAlg', '');
 
-		$this->initMailClientConnection();
-		$oImapClient = $this->ImapClient();
-		$oImapClient->FolderExamine($sFolderName);
+			$this->initMailClientConnection();
+			$oImapClient = $this->ImapClient();
+			$oImapClient->FolderExamine($sFolderName);
 
-		if ('TEXT' === $sPartId) {
-			$oFetchResponse = $oImapClient->Fetch([
-				FetchType::BODY_PEEK.'['.$sPartId.']',
-				// An empty section specification refers to the entire message, including the header.
-				// But Dovecot does not return it with BODY.PEEK[1], so we also use BODY.PEEK[1.MIME].
-				FetchType::BODY_HEADER_PEEK
-			], $iUid, true)[0];
-			$sBody = $oFetchResponse->GetFetchValue(FetchType::BODY_HEADER);
-		} else {
-			$oFetchResponse = $oImapClient->Fetch([
-				FetchType::BODY_PEEK.'['.$sPartId.']',
-				// An empty section specification refers to the entire message, including the header.
-				// But Dovecot does not return it with BODY.PEEK[1], so we also use BODY.PEEK[1.MIME].
-				FetchType::BODY_PEEK.'['.$sPartId.'.MIME]'
-			], $iUid, true)[0];
-			$sBody = $oFetchResponse->GetFetchValue(FetchType::BODY.'['.$sPartId.'.MIME]');
+			if ('TEXT' === $sPartId) {
+				$oFetchResponse = $oImapClient->Fetch([
+					FetchType::BODY_PEEK.'['.$sPartId.']',
+					// An empty section specification refers to the entire message, including the header.
+					// But Dovecot does not return it with BODY.PEEK[1], so we also use BODY.PEEK[1.MIME].
+					FetchType::BODY_HEADER_PEEK
+				], $iUid, true)[0];
+				$sBody = $oFetchResponse->GetFetchValue(FetchType::BODY_HEADER);
+			} else {
+				$oFetchResponse = $oImapClient->Fetch([
+					FetchType::BODY_PEEK.'['.$sPartId.']',
+					// An empty section specification refers to the entire message, including the header.
+					// But Dovecot does not return it with BODY.PEEK[1], so we also use BODY.PEEK[1.MIME].
+					FetchType::BODY_PEEK.'['.$sPartId.'.MIME]'
+				], $iUid, true)[0];
+				$sBody = $oFetchResponse->GetFetchValue(FetchType::BODY.'['.$sPartId.'.MIME]');
+			}
+			$sBody .= $oFetchResponse->GetFetchValue(FetchType::BODY.'['.$sPartId.']');
 		}
-		$sBody .= $oFetchResponse->GetFetchValue(FetchType::BODY.'['.$sPartId.']');
 
 		$result = $this->SMIME()->verify($sBody, null, !$bDetached);
 

snappymail/v/0.0.0/app/libraries/snappymail/smime/openssl.php

@@ -25,6 +25,11 @@ class OpenSSL
 		$this->homedir = $homedir;
 	}
 
+	public function getCertificate(string $filename)/* : string*/
+	{
+		return \file_get_contents("{$this->homedir}/{$filename}");
+	}
+
 	public function certificates() : array
 	{
 		$cacheFile = "{$this->homedir}/certificates.json";

snappymail/v/0.0.0/app/templates/Views/User/SettingsSecurity.html

@@ -123,6 +123,7 @@
 <div id="mailvelope-settings" style="height:40em" data-bind="visible: canMailvelope"></div>
 </details>
 
+<!-- TODO
 <details>
 <summary class="legend">S/MIME Certificates</summary>
 <table class="table table-hover list-table">
@@ -137,7 +138,6 @@
 				<span data-i18n="CRYPTO/VALID_UNTIL"></span>:
 				<time data-time-format="FULL" data-bind="time:validTo_time_t"></time>
 			</td>
-<!--
 			<td>
 				<a class="btn btn-small btn-danger button-confirm-delete" data-bind="css: {'delete-access': askDelete()}, click: remove"
 					data-i18n="GLOBAL/ARE_YOU_SURE"></a>
@@ -145,8 +145,8 @@
 			<td>
 				<span class="delete-key fontastic" data-bind="visible: !askDelete(), click: openForDeletion">🗑</span>
 			</td>
--->
 		</tr>
 	</tbody>
 </table>
 </details>
+-->