Fix libgpgme segfault error and re-enable gpg

Closes #255

meli/src/components/mail/pgp.rs

@@ -19,9 +19,6 @@
  * along with meli. If not, see <http://www.gnu.org/licenses/>.
  */
 
-//FIXME
-#![allow(unused_imports, unused_variables)]
-
 use std::{future::Future, pin::Pin};
 
 use melib::{
@@ -31,28 +28,23 @@ use melib::{
     },
     error::*,
     gpgme::*,
+    log,
     parser::BytesExt,
 };
 
 pub async fn decrypt(raw: Vec<u8>) -> Result<(melib_pgp::DecryptionMetadata, Vec<u8>)> {
-    Err("libgpgme functions are temporarily disabled due to an unsolved bug <https://git.meli.delivery/meli/meli/issues/176>.".into())
-    /*
     let mut ctx = Context::new()?;
     let cipher = ctx.new_data_mem(&raw)?;
     ctx.decrypt(cipher)?.await
-    */
 }
 
 pub async fn verify(a: Attachment) -> Result<()> {
-    Err("libgpgme functions are temporarily disabled due to an unsolved bug <https://git.meli.delivery/meli/meli/issues/176>.".into())
-    /*
     let (data, sig) =
         melib_pgp::verify_signature(&a).chain_err_summary(|| "Could not verify signature.")?;
     let mut ctx = Context::new()?;
     let sig = ctx.new_data_mem(sig.body().trim())?;
     let data = ctx.new_data_mem(&data)?;
     ctx.verify(sig, data)?.await
-    */
 }
 
 pub fn sign_filter(
@@ -64,8 +56,6 @@ pub fn sign_filter(
     Ok(
         move |a: AttachmentBuilder| -> Pin<Box<dyn Future<Output = Result<AttachmentBuilder>>+Send>> {
             Box::pin(async move {
-                Err("libgpgme functions are temporarily disabled due to an unsolved bug <https://git.meli.delivery/meli/meli/issues/176>.".into())
-                /*
                 let a: Attachment = a.into();
                 let mut ctx = Context::new()?;
                 let data = ctx.new_data_mem(&melib_pgp::convert_attachment_to_rfc_spec(
@@ -90,7 +80,6 @@ pub fn sign_filter(
                     vec![],
                 )
                 .into())
-                */
             })
         },
     )
@@ -106,8 +95,6 @@ pub fn encrypt_filter(
     Ok(
         move |a: AttachmentBuilder| -> Pin<Box<dyn Future<Output = Result<AttachmentBuilder>>+Send>> {
             Box::pin(async move {
-                Err("libgpgme functions are temporarily disabled due to an unsolved bug <https://git.meli.delivery/meli/meli/issues/176>.".into())
-                /*
                 let a: Attachment = a.into();
                 log::trace!("main attachment is {:?}", &a);
                 let mut ctx = Context::new()?;
@@ -140,7 +127,6 @@ pub fn encrypt_filter(
                     vec![],
                 )
                 .into())
-                */
             })
         },
     )

meli/src/components/mail/view/envelope.rs

@@ -363,11 +363,14 @@ impl EnvelopeView {
             (&self.force_charset).into(),
         );
         let (attachment_paths, attachment_tree) = self.attachment_displays_to_tree(&display);
-        let body_text = Self::attachment_displays_to_text(&display, true);
         self.display = display;
-        self.body_text = body_text;
         self.attachment_tree = attachment_tree;
         self.attachment_paths = attachment_paths;
+        self.regenerate_body_text();
+    }
+
+    pub fn regenerate_body_text(&mut self) {
+        self.body_text = Self::attachment_displays_to_text(&self.display, true);
     }
 
     pub fn attachment_displays_to_text(
@@ -1768,11 +1771,12 @@ impl Component for EnvelopeView {
                 }
                 if caught {
                     self.links.clear();
-                    self.parse_attachments();
+                    self.regenerate_body_text();
+                    self.initialised = false;
+                    self.set_dirty(true);
                 }
 
                 self.active_jobs.remove(job_id);
-                self.set_dirty(true);
             }
             _ => {}
         }

melib/src/gpgme/mod.rs

@@ -554,7 +554,6 @@ impl Context {
                     )
                     .set_err_kind(ErrorKind::External));
                 }
-                unsafe { call!(&ctx.lib, gpgme_free)(verify_result as *mut ::libc::c_void) };
             }
             let io_state_lck = io_state.lock().unwrap();
             let ret = io_state_lck