api: add dc_contact_is_profile_verified()

src/contact.rs

@@ -19,7 +19,7 @@ use tokio::task;
 use tokio::time::{timeout, Duration};
 
 use crate::aheader::EncryptPreference;
-use crate::chat::ChatId;
+use crate::chat::{ChatId, ProtectionStatus};
 use crate::color::str_to_color;
 use crate::config::Config;
 use crate::constants::{Blocked, Chattype, DC_GCL_ADD_SELF, DC_GCL_VERIFIED_ONLY};
@@ -1263,7 +1263,7 @@ impl Contact {
     ///
     /// Do not use this function when displaying the contact profile view.
     /// Display green checkmark in the title of the contact profile
-    /// if 1:1 chat with the contact exists and is protected.
+    /// if [Self::is_profile_verified] returns true.
     /// Use [Self::get_verifier_id] to display the verifier contact
     /// in the info section of the contact profile.
     pub async fn is_verified(&self, context: &Context) -> Result<VerifiedStatus> {
@@ -1317,6 +1317,22 @@ impl Contact {
         }
     }
 
+    /// Returns if the contact profile title should display a green checkmark.
+    ///
+    /// This generally should be consistent with the 1:1 chat with the contact
+    /// so 1:1 chat with the contact and the contact profile
+    /// either both display the green checkmark or both don't display a green checkmark.
+    pub async fn is_profile_verified(&self, context: &Context) -> Result<bool> {
+        let contact_id = self.id;
+
+        if let Some(chat_id) = ChatId::lookup_by_contact(context, contact_id).await? {
+            Ok(chat_id.is_protected(context).await? == ProtectionStatus::Protected)
+        } else {
+            // 1:1 chat does not exist.
+            Ok(self.is_verified(context).await? == VerifiedStatus::BidirectVerified)
+        }
+    }
+
     /// Returns the number of real (i.e. non-special) contacts in the database.
     pub async fn get_real_cnt(context: &Context) -> Result<usize> {
         if !context.sql.is_open().await {