From b89e704fdf28cdd02bea0b4cd12333bd99c0f3b5 Mon Sep 17 00:00:00 2001
From: dec05eba <dec05eba@protonmail.com>
Date: Wed, 30 Nov 2022 01:07:42 +0100
Subject: Matrix: ignore gpg keys with expired/revoked subkey as well

---
 src/plugins/Matrix.cpp | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

(limited to 'src')

diff --git a/src/plugins/Matrix.cpp b/src/plugins/Matrix.cpp
index 38ab6d0..2452548 100644
--- a/src/plugins/Matrix.cpp
+++ b/src/plugins/Matrix.cpp
@@ -80,6 +80,7 @@ namespace QuickMedia {
     enum class GpgLineType {
         UID,
         FPR,
+        SUB,
         UNKNOWN
     };
 
@@ -120,6 +121,7 @@ namespace QuickMedia {
         }
 
         std::string_view fpr;
+        std::string_view name_and_email;
         string_split(output, '\n', [&](const char *str, size_t size) {
             GpgLineType line_type = GpgLineType::UNKNOWN;
             int column = 0;
@@ -132,20 +134,24 @@ namespace QuickMedia {
                         line_type = GpgLineType::UID;
                     else if(section == "fpr")
                         line_type = GpgLineType::FPR;
+                    else if(section == "sub")
+                        line_type = GpgLineType::SUB;
                 } else if(column == 1) {
-                    if(line_type == GpgLineType::UID)
-                        invalid_signature = (section == "e" || section == "r"); // Expired or revoked
-                } else if(column == 9) {
-                    if(line_type == GpgLineType::UID && !invalid_signature) {
-                        // Assumes that each uid is preceeded with fpr
-                        const std::string user_email = std::string(gpg_display_name_extract_email(section));
+                    if(line_type == GpgLineType::UID || line_type == GpgLineType::SUB)
+                        invalid_signature |= (section == "e" || section == "r"); // Expired or revoked
+
+                    if(line_type == GpgLineType::SUB && !invalid_signature) {
+                        const std::string user_email = std::string(gpg_display_name_extract_email(name_and_email));
                         if(!user_email.empty() && users_by_email.find(user_email) != users_by_email.end()) {
                             fprintf(stderr, "found public key %.*s for user %s\n", (int)fpr.size(), fpr.data(), user_email.c_str());
                             callback(fpr);
                         }
-                    } else if(line_type == GpgLineType::FPR) {
-                        fpr = section;
                     }
+                } else if(column == 9) {
+                    if(line_type == GpgLineType::UID)
+                        name_and_email = section;
+                    else if(line_type == GpgLineType::FPR)
+                        fpr = section;
                 }
 
                 ++column;
-- 
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