adapt provider-db api to real need

deltachat-ffi/deltachat.h

@@ -3686,18 +3686,6 @@ int             dc_contact_is_verified       (dc_contact_t* contact);
  */
 
 
-/**
- * Create a provider struct for the given domain.
- *
- * @memberof dc_provider_t
- * @param domain The domain to get provider info for.
- * @return a dc_provider_t struct which can be used with the dc_provider_get_*
- *     accessor functions.  If no provider info is found, NULL will be
- *     returned.
- */
-dc_provider_t*  dc_provider_new_from_domain           (const char* domain);
-
-
 /**
  * Create a provider struct for the given email address.
  *
@@ -3725,47 +3713,25 @@ char*           dc_provider_get_overview_page         (const dc_provider_t* prov
 
 
 /**
- * The provider's name.
+ * Get hints to be shown to the user on the login screen.
+ * Depending on the @ref DC_PROVIDER_STATUS returned by dc_provider_get_status(),
+ * the ui may want to highlight the hint.
  *
- * The name of the provider, e.g. "POSTEO".
+ * Moreover, the ui should display a "More information" link
+ * that forwards to the url returned by dc_provider_get_overview_page().
  *
  * @memberof dc_provider_t
  * @param provider The dc_provider_t struct.
  * @return A string which must be released using dc_str_unref().
  */
-char*           dc_provider_get_name                  (const dc_provider_t* provider);
-
-
-/**
- * The markdown content of the providers page.
- *
- * This contains the preparation steps or additional information if the status
- * is @ref DC_PROVIDER_STATUS_BROKEN.
- *
- * @memberof dc_provider_t
- * @param provider The dc_provider_t struct.
- * @return A string which must be released using dc_str_unref().
- */
-char*           dc_provider_get_markdown              (const dc_provider_t* provider);
-
-
-/**
- * Date of when the state was last checked/updated.
- *
- * This is returned as a string.
- *
- * @memberof dc_provider_t
- * @param provider The dc_provider_t struct.
- * @return A string which must be released using dc_str_unref().
- */
-char*           dc_provider_get_status_date           (const dc_provider_t* provider);
+char*           dc_provider_get_before_login_hints    (const dc_provider_t* provider);
 
 
 /**
  * Whether DC works with this provider.
  *
- * Can be one of @ref DC_PROVIDER_STATUS_OK, @ref
- * DC_PROVIDER_STATUS_PREPARATION and @ref DC_PROVIDER_STATUS_BROKEN.
+ * Can be one of #DC_PROVIDER_STATUS_OK,
+ * #DC_PROVIDER_STATUS_PREPARATION or #DC_PROVIDER_STATUS_BROKEN.
  *
  * @memberof dc_provider_t
  * @param provider The dc_provider_t struct.
@@ -4506,23 +4472,43 @@ void            dc_array_add_id              (dc_array_t*, uint32_t); // depreca
  */
 
 /**
- * Provider status returned by dc_provider_get_status().
+ * Prover works out-of-the-box.
+ * This provider status is returned for provider where the login
+ * works by just entering the name or the email-address.
  *
- * Works right out of the box without any preperation steps needed
+ * - There is no need for the user to do any special things
+ *   (enable IMAP or so) in the provider's webinterface or at other places.
+ * - There is no need for the user to enter advanced settings;
+ *   server, port etc. are known by the core.
+ *
+ * The status is returned by dc_provider_get_status().
  */
 #define         DC_PROVIDER_STATUS_OK           1
 
 /**
- * Provider status returned by dc_provider_get_status().
+ * Provider works, but there are preparations needed.
  *
- * Works, but preparation steps are needed
+ * - The user has to do some special things as "Enable IMAP in the Webinterface",
+ *   what exactly, is described in the string returnd by dc_provider_get_before_login_hints()
+ *   and, typically more detailed, in the page linked by dc_provider_get_overview_page().
+ * - There is no need for the user to enter advanced settings;
+ *   server, port etc. should be known by the core.
+ *
+ * The status is returned by dc_provider_get_status().
  */
 #define         DC_PROVIDER_STATUS_PREPARATION  2
 
 /**
- * Provider status returned by dc_provider_get_status().
+ * Provider is not working.
+ * This provider status is returned for providers
+ * that are known to not work with Delta Chat.
+ * The ui should block logging in with this provider.
  *
- * Doesn't work (too unstable to use falls also in this category)
+ * More information about that is typically provided
+ * in the string returned by dc_provider_get_before_login_hints()
+ * and in the page linked by dc_provider_get_overview_page().
+ *
+ * The status is returned by dc_provider_get_status().
  */
 #define         DC_PROVIDER_STATUS_BROKEN       3
 

deltachat-ffi/src/providers.rs

@@ -8,16 +8,6 @@ use deltachat_provider_database::StatusState;
 #[no_mangle]
 pub type dc_provider_t = deltachat_provider_database::Provider;
 
-#[no_mangle]
-pub unsafe extern "C" fn dc_provider_new_from_domain(
-    domain: *const libc::c_char,
-) -> *const dc_provider_t {
-    match deltachat_provider_database::get_provider_info(&to_string_lossy(domain)) {
-        Some(provider) => provider,
-        None => ptr::null(),
-    }
-}
-
 #[no_mangle]
 pub unsafe extern "C" fn dc_provider_new_from_email(
     email: *const libc::c_char,
@@ -52,27 +42,13 @@ pub unsafe extern "C" fn dc_provider_get_overview_page(
 }
 
 #[no_mangle]
-pub unsafe extern "C" fn dc_provider_get_name(provider: *const dc_provider_t) -> *mut libc::c_char {
-    null_guard!(provider);
-    (*provider).name.strdup()
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn dc_provider_get_markdown(
+pub unsafe extern "C" fn dc_provider_get_before_login_hints(
     provider: *const dc_provider_t,
 ) -> *mut libc::c_char {
     null_guard!(provider);
     (*provider).markdown.strdup()
 }
 
-#[no_mangle]
-pub unsafe extern "C" fn dc_provider_get_status_date(
-    provider: *const dc_provider_t,
-) -> *mut libc::c_char {
-    null_guard!(provider);
-    (*provider).status.date.strdup()
-}
-
 #[no_mangle]
 pub unsafe extern "C" fn dc_provider_get_status(provider: *const dc_provider_t) -> u32 {
     if provider.is_null() {