Start collecting recipients

- Collect recipients for processed email.
- Add proper email parsing

src/types/husk_context.rs

@@ -5,6 +5,7 @@
 //
 
 use anyhow;
+use sequoia_openpgp::policy::StandardPolicy;
 use std::path::PathBuf;
 use sequoia_openpgp::Cert;
 use sequoia_cert_store::{CertStore, StoreUpdate};
@@ -14,6 +15,7 @@ use crate::{config::HuskConfig, crypto};
 use crate::types::mail_context::MailContext;
 
 pub struct HuskContext<'hc> {
+    pub policy: StandardPolicy<'hc>,
     pub cert_store: CertStore<'hc>,
     pub local_trust_root: Cert,
     pub mail: MailContext<'hc>,
@@ -28,9 +30,12 @@ impl<'hc> HuskContext<'hc> {
         let cert_store_base = sequoia_home.data_dir(sequoia_directories::Component::CertD);
         let cert_store = CertStore::open(cert_store_base)?;
 
+        let policy = StandardPolicy::new();
+
         let local_trust_root = crypto::get_local_trust_root(&cert_store)?;
 
         Ok(HuskContext {
+            policy,
             cert_store,
             local_trust_root,
             mail: MailContext::new(),
@@ -41,4 +46,12 @@ impl<'hc> HuskContext<'hc> {
         self.mail.set_sender(sender);
     }
 
+    pub fn reset_mail(&mut self) {
+        self.mail = MailContext::new();
+    }
+
+    pub fn add_recipient(&mut self, rcpt: String) -> anyhow::Result<()> {
+        self.mail.add_recipient(rcpt)
+    }
+
 }

src/types/mail_context.rs

@@ -4,15 +4,25 @@
 // Mail Context
 //
 
-use std::ffi::CString;
+use anyhow;
 
 use sequoia_openpgp::cert::ValidCert;
 
+#[derive(Debug, Clone)]
 pub struct Recipient<'r> {
-    pub email: CString,
+    pub email: String,
     pub cert: Option<ValidCert<'r>>,
 }
 
+impl From<String> for Recipient<'_> {
+    fn from(email: String) -> Self {
+        Recipient { 
+            email: email, 
+            cert: None
+        }
+    }
+}
+
 pub struct MailContext<'c> {
     pub sender:     Option<String>,
     pub recipients: Vec<Recipient<'c>>,
@@ -34,4 +44,12 @@ impl MailContext<'_> {
         self.sender = Some(sender);
     }
 
+    pub fn add_recipient(&mut self, rcpt: String) -> anyhow::Result<()> {
+        let recipient: Recipient = rcpt.into();
+
+        self.recipients.push(recipient);
+        
+        Ok(())
+    }
+
 }