[evolution-data-server] I#390 - Camel: Give more precise error on failed message encryption

[Milan Crha <mcrha src gnome org>]

commit 5030beff9134b134558d490659747352df91bb07
Author: Milan Crha <mcrha redhat com>
Date:   Mon May 23 14:13:20 2022 +0200

    I#390 - Camel: Give more precise error on failed message encryption
    
    Closes https://gitlab.gnome.org/GNOME/evolution-data-server/-/issues/390

 src/camel/camel-gpg-context.c | 65 +++++++++++++++++++++++++++++++++++++++----
 1 file changed, 59 insertions(+), 6 deletions(-)
---
diff --git a/src/camel/camel-gpg-context.c b/src/camel/camel-gpg-context.c
index 685d3ab25..34f5821ad 100644
--- a/src/camel/camel-gpg-context.c
+++ b/src/camel/camel-gpg-context.c
@@ -1347,17 +1347,70 @@ gpg_ctx_parse_status (struct _GpgCtx *gpg,
                                return -1;
                        } else if (!strncmp ((gchar *) status, "INV_RECP ", 9)) {
                                const gchar *addr;
+                               gchar *end_ptr = NULL;
+                               gint64 err_code;
+
+                               err_code = g_ascii_strtoll (((const gchar *) status) + 9, &end_ptr, 10);
+                               if (!end_ptr || !g_ascii_isspace (*end_ptr))
+                                       err_code = 0;
 
                                addr = strchr ((gchar *) status, '<');
                                if (!addr)
                                        addr = ((gchar *) status) + 10;
 
-                               g_set_error (
-                                       error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
-                                       /* Translators: The first '%s' is replaced with the e-mail address, 
like '<user example com>';
-                                          the second '%s' is replaced with the actual path and filename of 
the used gpg, like '/usr/bin/gpg2' */
-                                       _("Failed to encrypt: Invalid recipient %s specified. A common issue 
is that the %s doesn’t have imported public key for this recipient."),
-                                       addr, gpg_ctx_get_executable_name ());
+                               switch (err_code) {
+                               case 0:
+                                       g_set_error (
+                                               error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
+                                               /* Translators: The first '%s' is replaced with the e-mail 
address, like '<user example com>';
+                                                  the second '%s' is replaced with the actual path and 
filename of the used gpg, like '/usr/bin/gpg2' */
+                                               _("Failed to encrypt: Invalid recipient %s specified. A 
common issue is that the %s doesn’t have imported public key for this recipient."),
+                                               addr, gpg_ctx_get_executable_name ());
+                                       break;
+                               case 1:
+                                       g_set_error (
+                                               error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
+                                               /* Translators: The '%s' is replaced with the e-mail address, 
like '<user example com>' */
+                                               _("Failed to encrypt: The public key for recipient %s was not 
found."),
+                                               addr);
+                                       break;
+                               case 4:
+                                       g_set_error (
+                                               error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
+                                               /* Translators: The '%s' is replaced with the e-mail address, 
like '<user example com>' */
+                                               _("Failed to encrypt: The key for recipient %s is revoked."),
+                                               addr);
+                                       break;
+                               case 5:
+                                       g_set_error (
+                                               error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
+                                               /* Translators: The '%s' is replaced with the e-mail address, 
like '<user example com>' */
+                                               _("Failed to encrypt: The key for recipient %s is expired."),
+                                               addr);
+                                       break;
+                               case 10:
+                                       g_set_error (
+                                               error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
+                                               /* Translators: The '%s' is replaced with the e-mail address, 
like '<user example com>' */
+                                               _("Failed to encrypt: The key for recipient %s is not 
trusted."),
+                                               addr);
+                                       break;
+                               case 13:
+                                       g_set_error (
+                                               error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
+                                               /* Translators: The '%s' is replaced with the e-mail address, 
like '<user example com>' */
+                                               _("Failed to encrypt: The key for recipient %s is disabled."),
+                                               addr);
+                                       break;
+                               default:
+                                       g_set_error (
+                                               error, CAMEL_ERROR, CAMEL_ERROR_GENERIC,
+                                               /* Translators: The first '%s' is replaced with the e-mail 
address, like '<user example com>';
+                                                  the second '%s' is replaced with the actual path and 
filename of the used gpg, like '/usr/bin/gpg2' */
+                                               _("Failed to encrypt: Invalid recipient %s specified (code 
%d). A common issue is that the %s doesn’t have imported public key for this recipient."),
+                                               addr, (gint) err_code, gpg_ctx_get_executable_name ());
+                                       break;
+                               }
                                return -1;
                        }
                        break;