localize some error messages

proto/backend.proto

@@ -18,6 +18,7 @@ enum StringsGroup {
     MEDIA_CHECK = 2;
     CARD_TEMPLATES = 3;
     SYNC = 4;
+    NETWORK = 5;
 }
 
 // 1-15 reserved for future use; 2047 for errors
@@ -102,6 +103,7 @@ message NetworkError {
         PROXY_AUTH = 3;
     }
     NetworkErrorKind kind = 2;
+    string localized = 3;
 }
 
 message SyncError {
@@ -117,6 +119,7 @@ message SyncError {
         RESYNC_REQUIRED = 7;
     }
     SyncErrorKind kind = 2;
+    string localized = 3;
 }
 
 message MediaSyncProgress {

pylib/anki/rsbackend.py

@@ -37,6 +37,9 @@ class NetworkError(StringError):
     def kind(self) -> NetworkErrorKind:
         return self.args[1]
 
+    def localized(self) -> str:
+        return self.args[2]
+
 
 class IOError(StringError):
     pass
@@ -57,6 +60,9 @@ class SyncError(StringError):
     def kind(self) -> SyncErrorKind:
         return self.args[1]
 
+    def localized(self) -> str:
+        return self.args[2]
+
 
 def proto_exception_to_native(err: pb.BackendError) -> Exception:
     val = err.WhichOneof("value")
@@ -64,7 +70,7 @@ def proto_exception_to_native(err: pb.BackendError) -> Exception:
         return Interrupted()
     elif val == "network_error":
         e = err.network_error
-        return NetworkError(e.info, e.kind)
+        return NetworkError(e.info, e.kind, e.localized)
     elif val == "io_error":
         return IOError(err.io_error.info)
     elif val == "db_error":
@@ -75,7 +81,7 @@ def proto_exception_to_native(err: pb.BackendError) -> Exception:
         return StringError(err.invalid_input.info)
     elif val == "sync_error":
         e2 = err.sync_error
-        return SyncError(e2.info, e2.kind)
+        return SyncError(e2.info, e2.kind, e2.localized)
     else:
         assert_impossible_literal(val)
 

qt/aqt/mediasync.py

@@ -10,18 +10,14 @@ from typing import List, Union
 
 import aqt
 from anki import hooks
-from anki.lang import _
 from anki.rsbackend import (
-    DBError,
     Interrupted,
     MediaSyncProgress,
     NetworkError,
-    NetworkErrorKind,
     Progress,
     ProgressKind,
     StringsGroup,
     SyncError,
-    SyncErrorKind,
 )
 from anki.types import assert_impossible
 from anki.utils import intTime
@@ -114,40 +110,10 @@ class MediaSyncer:
 
         self._log_and_notify(tr(StringsGroup.SYNC, "media-failed"))
         if isinstance(exc, SyncError):
-            kind = exc.kind()
-            if kind == SyncErrorKind.AUTH_FAILED:
-                self.mw.pm.set_sync_key(None)
-                showWarning(
-                    _("AnkiWeb ID or password was incorrect; please try again.")
-                )
-            elif kind == SyncErrorKind.SERVER_ERROR:
-                showWarning(
-                    _(
-                        "AnkiWeb encountered a problem. Please try again in a few minutes."
-                    )
-                )
-            elif kind == SyncErrorKind.MEDIA_CHECK_REQUIRED:
-                showWarning(_("Please use the Tools>Check Media menu option."))
-            elif kind == SyncErrorKind.RESYNC_REQUIRED:
-                showWarning(
-                    _(
-                        "Please sync again, and post on the support forum if this message keeps appearing."
-                    )
-                )
-            else:
-                showWarning(_("Unexpected error: {}").format(str(exc)))
+            showWarning(exc.localized())
         elif isinstance(exc, NetworkError):
-            nkind = exc.kind()
-            if nkind in (NetworkErrorKind.OFFLINE, NetworkErrorKind.TIMEOUT):
-                showWarning(
-                    _("Syncing failed; please check your internet connection.")
-                    + "\n\n"
-                    + _("Detailed error: {}").format(str(exc))
-                )
-            else:
-                showWarning(_("Unexpected error: {}").format(str(exc)))
-        elif isinstance(exc, DBError):
-            showWarning(_("Problem accessing the media database: {}").format(str(exc)))
+            msg = exc.localized()
+            msg += "\n\n" + tr(StringsGroup.NETWORK, "details", details=str(exc))
         else:
             raise exc
 

rslib/src/backend.rs

@@ -39,9 +39,9 @@ enum Progress<'a> {
 }
 
 /// Convert an Anki error to a protobuf error.
-impl std::convert::From<AnkiError> for pb::BackendError {
-    fn from(err: AnkiError) -> Self {
+fn anki_error_to_proto_error(err: AnkiError, i18n: &I18n) -> pb::BackendError {
     use pb::backend_error::Value as V;
+    let localized = err.localized_description(i18n);
     let value = match err {
         AnkiError::InvalidInput { info } => V::InvalidInput(pb::StringError { info }),
         AnkiError::TemplateError { info } => V::TemplateParse(pb::TemplateParseError { info }),
@@ -50,22 +50,23 @@ impl std::convert::From<AnkiError> for pb::BackendError {
         AnkiError::NetworkError { info, kind } => V::NetworkError(pb::NetworkError {
             info,
             kind: kind.into(),
+            localized,
         }),
         AnkiError::SyncError { info, kind } => V::SyncError(pb::SyncError {
             info,
             kind: kind.into(),
+            localized,
         }),
         AnkiError::Interrupted => V::Interrupted(Empty {}),
     };
 
     pb::BackendError { value: Some(value) }
 }
-}
 
 // Convert an Anki error to a protobuf output.
-impl std::convert::From<AnkiError> for pb::backend_output::Value {
-    fn from(err: AnkiError) -> Self {
-        pb::backend_output::Value::Error(err.into())
+impl std::convert::From<pb::BackendError> for pb::backend_output::Value {
+    fn from(err: pb::BackendError) -> Self {
+        pb::backend_output::Value::Error(err)
     }
 }
 
@@ -136,8 +137,9 @@ impl Backend {
             Err(_e) => {
                 // unable to decode
                 let err = AnkiError::invalid_input("couldn't decode backend request");
+                let oerr = anki_error_to_proto_error(err, &self.i18n);
                 let output = pb::BackendOutput {
-                    value: Some(err.into()),
+                    value: Some(oerr.into()),
                 };
                 output.encode(&mut buf).expect("encode failed");
                 return buf;
@@ -153,10 +155,14 @@ impl Backend {
         let oval = if let Some(ival) = input.value {
             match self.run_command_inner(ival) {
                 Ok(output) => output,
-                Err(err) => err.into(),
+                Err(err) => anki_error_to_proto_error(err, &self.i18n).into(),
             }
         } else {
-            AnkiError::invalid_input("unrecognized backend input value").into()
+            anki_error_to_proto_error(
+                AnkiError::invalid_input("unrecognized backend input value"),
+                &self.i18n,
+            )
+            .into()
         };
 
         pb::BackendOutput { value: Some(oval) }

rslib/src/err.rs

@@ -1,6 +1,7 @@
 // Copyright: Ankitects Pty Ltd and contributors
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
+use crate::i18n::{I18n, StringsGroup};
 pub use failure::{Error, Fail};
 use reqwest::StatusCode;
 use std::io;
@@ -53,6 +54,36 @@ impl AnkiError {
             kind: SyncErrorKind::Other,
         }
     }
+
+    pub fn localized_description(&self, i18n: &I18n) -> String {
+        match self {
+            AnkiError::SyncError { info, kind } => {
+                let cat = i18n.get(StringsGroup::Sync);
+                match kind {
+                    SyncErrorKind::ServerMessage => info.into(),
+                    SyncErrorKind::Other => info.into(),
+                    SyncErrorKind::Conflict => cat.tr("conflict"),
+                    SyncErrorKind::ServerError => cat.tr("server-error"),
+                    SyncErrorKind::ClientTooOld => cat.tr("client-too-old"),
+                    SyncErrorKind::AuthFailed => cat.tr("wrong-pass"),
+                    SyncErrorKind::MediaCheckRequired => cat.tr("media-check-required"),
+                    SyncErrorKind::ResyncRequired => cat.tr("resync-required"),
+                }
+                .into()
+            }
+            AnkiError::NetworkError { kind, .. } => {
+                let cat = i18n.get(StringsGroup::Network);
+                match kind {
+                    NetworkErrorKind::Offline => cat.tr("offline"),
+                    NetworkErrorKind::Timeout => cat.tr("timeout"),
+                    NetworkErrorKind::ProxyAuth => cat.tr("proxy-auth"),
+                    NetworkErrorKind::Other => cat.tr("other"),
+                }
+                .into()
+            }
+            _ => "".into(),
+        }
+    }
 }
 
 #[derive(Debug, PartialEq)]

rslib/src/i18n/mod.rs

@@ -56,6 +56,7 @@ fn ftl_fallback_for_group(group: StringsGroup) -> String {
         StringsGroup::MediaCheck => include_str!("media-check.ftl"),
         StringsGroup::CardTemplates => include_str!("card-template-rendering.ftl"),
         StringsGroup::Sync => include_str!("sync.ftl"),
+        StringsGroup::Network => include_str!("network.ftl"),
     }
     .to_string()
 }
@@ -69,6 +70,7 @@ fn localized_ftl_for_group(group: StringsGroup, lang_ftl_folder: &Path) -> Optio
         StringsGroup::MediaCheck => "media-check.ftl",
         StringsGroup::CardTemplates => "card-template-rendering.ftl",
         StringsGroup::Sync => "sync.ftl",
+        StringsGroup::Network => "network.ftl",
     });
     fs::read_to_string(&path)
         .map_err(|e| {

rslib/src/i18n/network.ftl

@@ -0,0 +1,6 @@
+offline = Please check your internet connection.
+timeout = Connection timed out. Please try again on a different network.
+proxy-auth = Your proxy requires authentication.
+other = A network error occurred.
+
+details = Error details: {$details}

rslib/src/i18n/sync.ftl

@@ -14,3 +14,14 @@ media-aborted = Media sync aborted.
 media-disabled = Media sync disabled.
 
 abort-button = Abort
+
+## Error messages
+
+conflict = Only one copy of Anki can sync to your account at once. Please wait a few minutes, then try again.
+server-error = AnkiWeb encountered a problem. Please try again in a few minutes.
+client-too-old =
+  Your Anki version is too old. Please update to the latest version to continue syncing.
+wrong-pass = AnkiWeb ID or password was incorrect; please try again.
+media-check-required = Please use the Check Media function, then sync again.
+resync-required =
+  Please sync again. If this message keeps appearing, please post on the support site.