Start working on encryption_modus

src/chat.rs

@@ -75,6 +75,29 @@ pub enum ProtectionStatus {
     Protected = 1,
 }
 
+#[derive(
+    Debug,
+    Display,
+    Clone,
+    Copy,
+    PartialEq,
+    Eq,
+    FromPrimitive,
+    ToPrimitive,
+    FromSql,
+    ToSql,
+    IntoStaticStr,
+    Serialize,
+    Deserialize,
+)]
+#[repr(u32)]
+pub enum EncryptionModus {
+    Opportunistic = 0,
+    ForcePlaintext = 1,
+    ForceEncrypted = 2,
+    ForceVerified = 3,
+}
+
 impl Default for ProtectionStatus {
     fn default() -> Self {
         ProtectionStatus::Unprotected
@@ -898,6 +921,33 @@ impl ChatId {
         Ok(ret.trim().to_string())
     }
 
+    /// This sets a protection modus for the chat and enforces that messages are only send if they
+    /// meet the encryption modus (ForcePlaintext, Opportunistic, ForceEncrypted, ForceVerified)
+    pub async fn set_encryption_modus(self, context: &Context, modus: &EncryptionModus) -> Result<()> {
+        let encryption_modus: u32 = context
+            .sql
+            .query_get_value(
+                "SELECT encryption_modus FROM chats WHERE id=?;",
+                paramsv![self],
+            )
+            .await??;
+        Ok(encryption_modus.unwrap_or_default())
+    }
+
+    /// This sets a protection modus for the chat and enforces that messages are only send if they
+    /// meet the encryption modus (ForcePlaintext, Opportunistic, ForceEncrypted, ForceVerified)
+    pub async fn get_encryption_modus(self, context: &Context) -> Result<EncryptionModus> {
+        let encryption_modus: u32 = context
+            .sql
+            .query_get_value(
+                "SELECT encryption_modus FROM chats WHERE id=?;",
+                paramsv![self],
+            )
+            .await??;
+        Ok(encryption_modus.into())
+    }
+
+
     /// Bad evil escape hatch.
     ///
     /// Avoid using this, eventually types should be cleaned up enough

src/sql/tables.sql

@@ -38,7 +38,8 @@ CREATE TABLE chats (
     locations_last_sent INTEGER DEFAULT 0,
     created_timestamp INTEGER DEFAULT 0,
     muted_until INTEGER DEFAULT 0,
-    ephemeral_timer INTEGER
+    ephemeral_timer INTEGER,
+    encryption_modus INTEGER DEFAULT 0
 );
 CREATE INDEX chats_index1 ON chats (grpid);
 CREATE INDEX chats_index2 ON chats (archived);