Added account setting to disable partial fetch

https://javaee.github.io/javamail/docs/NOTES.txt

app/src/main/java/eu/faircode/email/BoundaryCallbackMessages.java

@@ -256,6 +256,10 @@ public class BoundaryCallbackMessages extends PagedList.BoundaryCallback<TupleMe
 
                 // Get properties
                 Properties props = MessageHelper.getSessionProperties(account.auth_type, account.realm, account.insecure);
+                if (!account.partial_fetch) {
+                    props.put("mail.imap.partialfetch", "false");
+                    props.put("mail.imaps.partialfetch", "false");
+                }
                 props.put("mail." + protocol + ".separatestoreconnection", "true");
 
                 // Create session

app/src/main/java/eu/faircode/email/DB.java

@@ -54,7 +54,7 @@ import io.requery.android.database.sqlite.RequerySQLiteOpenHelperFactory;
 // https://developer.android.com/topic/libraries/architecture/room.html
 
 @Database(
-        version = 87,
+        version = 88,
         entities = {
                 EntityIdentity.class,
                 EntityAccount.class,
@@ -869,6 +869,13 @@ public abstract class DB extends RoomDatabase {
                         db.execSQL("DROP VIEW `folderview`");
                     }
                 })
+                .addMigrations(new Migration(87, 88) {
+                    @Override
+                    public void migrate(SupportSQLiteDatabase db) {
+                        Log.i("DB migration from version " + startVersion + " to " + endVersion);
+                        db.execSQL("ALTER TABLE `account` ADD COLUMN `partial_fetch` INTEGER NOT NULL DEFAULT 1");
+                    }
+                })
                 .build();
     }
 

app/src/main/java/eu/faircode/email/EntityAccount.java

@@ -89,6 +89,8 @@ public class EntityAccount extends EntityOrder implements Serializable {
     public Long swipe_right;
     @NonNull
     public Integer poll_interval; // keep-alive interval
+    @NonNull
+    public Boolean partial_fetch = true;
     public String prefix; // namespace, obsolete
 
     public Long created;
@@ -164,6 +166,7 @@ public class EntityAccount extends EntityOrder implements Serializable {
         json.put("swipe_right", swipe_right);
 
         json.put("poll_interval", poll_interval);
+        json.put("partial_fetch", partial_fetch);
         // not created
         // not state
         // not error
@@ -209,6 +212,11 @@ public class EntityAccount extends EntityOrder implements Serializable {
 
         account.poll_interval = json.getInt("poll_interval");
 
+        if (json.has("partial_fetch"))
+            account.partial_fetch = json.getBoolean("partial_fetch");
+        else
+            account.partial_fetch = true;
+
         return account;
     }
 
@@ -234,6 +242,7 @@ public class EntityAccount extends EntityOrder implements Serializable {
                     Objects.equals(this.swipe_left, other.swipe_left) &&
                     Objects.equals(this.swipe_right, other.swipe_right) &&
                     this.poll_interval.equals(other.poll_interval) &&
+                    this.partial_fetch == other.partial_fetch &&
                     Objects.equals(this.created, other.created) &&
                     Objects.equals(this.tbd, other.tbd) &&
                     Objects.equals(this.state, other.state) &&

app/src/main/java/eu/faircode/email/FragmentAccount.java

@@ -118,6 +118,7 @@ public class FragmentAccount extends FragmentBase {
     private CheckBox cbNotify;
     private CheckBox cbBrowse;
     private EditText etInterval;
+    private CheckBox cbPartialFetch;
 
     private Button btnCheck;
     private ContentLoadingProgressBar pbCheck;
@@ -194,6 +195,7 @@ public class FragmentAccount extends FragmentBase {
         cbNotify = view.findViewById(R.id.cbNotify);
         cbBrowse = view.findViewById(R.id.cbBrowse);
         etInterval = view.findViewById(R.id.etInterval);
+        cbPartialFetch = view.findViewById(R.id.cbPartialFetch);
 
         btnCheck = view.findViewById(R.id.btnCheck);
         pbCheck = view.findViewById(R.id.pbCheck);
@@ -756,6 +758,7 @@ public class FragmentAccount extends FragmentBase {
         args.putBoolean("notify", cbNotify.isChecked());
         args.putBoolean("browse", cbBrowse.isChecked());
         args.putString("interval", etInterval.getText().toString());
+        args.putBoolean("partial_fetch", cbPartialFetch.isChecked());
 
         args.putSerializable("drafts", drafts);
         args.putSerializable("sent", sent);
@@ -804,6 +807,7 @@ public class FragmentAccount extends FragmentBase {
                 boolean notify = args.getBoolean("notify");
                 boolean browse = args.getBoolean("browse");
                 String interval = args.getString("interval");
+                boolean partial_fetch = args.getBoolean("partial_fetch");
 
                 EntityFolder drafts = (EntityFolder) args.getSerializable("drafts");
                 EntityFolder sent = (EntityFolder) args.getSerializable("sent");
@@ -846,7 +850,8 @@ public class FragmentAccount extends FragmentBase {
                 boolean reload = (check || account == null ||
                         account.synchronize != synchronize ||
                         account.notify != notify ||
-                        !account.poll_interval.equals(Integer.parseInt(interval)));
+                        !account.poll_interval.equals(Integer.parseInt(interval)) ||
+                        account.partial_fetch != partial_fetch);
 
                 Long last_connected = null;
                 if (account != null && synchronize == account.synchronize)
@@ -920,6 +925,7 @@ public class FragmentAccount extends FragmentBase {
                     account.notify = notify;
                     account.browse = browse;
                     account.poll_interval = Integer.parseInt(interval);
+                    account.partial_fetch = partial_fetch;
 
                     if (!update)
                         account.created = now;
@@ -1136,6 +1142,7 @@ public class FragmentAccount extends FragmentBase {
                     cbPrimary.setChecked(account == null ? false : account.primary);
                     cbBrowse.setChecked(account == null ? true : account.browse);
                     etInterval.setText(account == null ? "" : Long.toString(account.poll_interval));
+                    cbPartialFetch.setChecked(account == null ? true : account.partial_fetch);
 
                     color = (account == null || account.color == null ? Color.TRANSPARENT : account.color);
 

app/src/main/java/eu/faircode/email/MessageHelper.java

@@ -137,7 +137,6 @@ public class MessageHelper {
         //props.put("mail.imaps.compress.strategy", "0");
 
         props.put("mail.imaps.throwsearchexception", "true");
-        //props.put("mail.imaps.partialfetch", "false");
         props.put("mail.imaps.fetchsize", Integer.toString(FETCH_SIZE));
         props.put("mail.imaps.peek", "true");
 
@@ -162,7 +161,6 @@ public class MessageHelper {
         props.put("mail.imap.compress.enable", "true");
 
         props.put("mail.imap.throwsearchexception", "true");
-        //props.put("mail.imap.partialfetch", "false");
         props.put("mail.imap.fetchsize", Integer.toString(FETCH_SIZE));
         props.put("mail.imap.peek", "true");
 

app/src/main/java/eu/faircode/email/ServiceSynchronize.java

@@ -570,6 +570,10 @@ public class ServiceSynchronize extends LifecycleService {
 
                 // Get properties
                 Properties props = MessageHelper.getSessionProperties(account.auth_type, account.realm, account.insecure);
+                if (!account.partial_fetch) {
+                    props.put("mail.imap.partialfetch", "false");
+                    props.put("mail.imaps.partialfetch", "false");
+                }
 
                 // Create session
                 final Session isession = Session.getInstance(props, null);