mail-crypt: Add and use MAIL_CRYPT_USER_CONTEXT_REQUIRE

Satisfies static analyzers

diff --git a/src/plugins/mail-crypt/mail-crypt-plugin.c b/src/plugins/mail-crypt/mail-crypt-plugin.c
index d03bdb8263dfc31cd80a07e54fec8ddfffd3743e..dffd7064303ad34dd6a8f2f3cf7c2d2ad8f0653c 100644 (file)
--- a/src/plugins/mail-crypt/mail-crypt-plugin.c
+++ b/src/plugins/mail-crypt/mail-crypt-plugin.c
@@ -39,6 +39,8 @@ const char *mail_crypt_plugin_version = DOVECOT_ABI_VERSION;
        MODULE_CONTEXT_REQUIRE(obj, mail_crypt_storage_module)
 #define MAIL_CRYPT_USER_CONTEXT(obj) \
        MODULE_CONTEXT(obj, mail_crypt_user_module)
+#define MAIL_CRYPT_USER_CONTEXT_REQUIRE(obj) \
+       MODULE_CONTEXT_REQUIRE(obj, mail_crypt_user_module)
 
 static MODULE_CONTEXT_DEFINE_INIT(mail_crypt_user_module,
                                  &mail_user_module_register);
@@ -121,8 +123,7 @@ static int mail_crypt_istream_get_private_key(const char *pubkey_digest,
        int ret;
        struct mail *_mail = context;
        struct mail_crypt_user *muser =
-               MAIL_CRYPT_USER_CONTEXT(_mail->box->storage->user);
-       i_assert(muser != NULL);
+               MAIL_CRYPT_USER_CONTEXT_REQUIRE(_mail->box->storage->user);
 
        *priv_key_r = mail_crypt_global_key_find(&muser->global_keys,
                                                 pubkey_digest);
@@ -152,7 +153,7 @@ mail_crypt_istream_opened(struct mail *_mail, struct istream **stream)
 {
        struct mail_private *mail = (struct mail_private *)_mail;
        struct mail_user *user = _mail->box->storage->user;
-       struct mail_crypt_user *muser = MAIL_CRYPT_USER_CONTEXT(user);
+       struct mail_crypt_user *muser = MAIL_CRYPT_USER_CONTEXT_REQUIRE(user);
        struct mail_crypt_cache *cache = &muser->cache;
        union mail_module_context *mmail = MAIL_CRYPT_MAIL_CONTEXT(mail);
        struct istream *input;
@@ -185,7 +186,7 @@ static void mail_crypt_close(struct mail *_mail)
        struct mail_private *mail = (struct mail_private *)_mail;
        union mail_module_context *mmail = MAIL_CRYPT_MAIL_CONTEXT(mail);
        struct mail_crypt_user *muser =
-               MAIL_CRYPT_USER_CONTEXT(_mail->box->storage->user);
+               MAIL_CRYPT_USER_CONTEXT_REQUIRE(_mail->box->storage->user);
        struct mail_crypt_cache *cache = &muser->cache;
        uoff_t size;
 
@@ -250,8 +251,7 @@ mail_crypt_mail_save_begin(struct mail_save_context *ctx,
        struct mailbox *box = ctx->transaction->box;
        struct mail_crypt_mailbox *mbox = MAIL_CRYPT_CONTEXT(box);
        struct mail_crypt_user *muser =
-               MAIL_CRYPT_USER_CONTEXT(box->storage->user);
-       i_assert(muser != NULL);
+               MAIL_CRYPT_USER_CONTEXT_REQUIRE(box->storage->user);
 
        enum io_stream_encrypt_flags enc_flags;
        if (muser->save_version == 1) {
@@ -340,7 +340,7 @@ static void mail_crypt_mailbox_close(struct mailbox *box)
 {
        struct mail_crypt_mailbox *mbox = MAIL_CRYPT_CONTEXT(box);
        struct mail_crypt_user *muser =
-               MAIL_CRYPT_USER_CONTEXT(box->storage->user);
+               MAIL_CRYPT_USER_CONTEXT_REQUIRE(box->storage->user);
 
        if (mbox->pub_key != NULL)
                dcrypt_key_unref_public(&mbox->pub_key);
@@ -384,7 +384,7 @@ static void mail_crypt_mailbox_allocated(struct mailbox *box)
 
 static void mail_crypt_mail_user_deinit(struct mail_user *user)
 {
-       struct mail_crypt_user *muser = MAIL_CRYPT_USER_CONTEXT(user);
+       struct mail_crypt_user *muser = MAIL_CRYPT_USER_CONTEXT_REQUIRE(user);
 
        mail_crypt_key_cache_destroy(&muser->key_cache);
        mail_crypt_global_keys_free(&muser->global_keys);