feat(ffi): expose method for sending generic GET requests through the…

… SDK's inner HTTP client.

bindings/matrix-sdk-ffi/src/client.rs

@@ -420,6 +420,11 @@ impl Client {
             }
         })))
     }
+
+    pub async fn get_url(&self, url: String) -> Result<String, ClientError> {
+        let http_client = self.inner.http_client();
+        Ok(http_client.get(url).send().await?.text().await?)
+    }
 }
 
 impl Client {

bindings/matrix-sdk-ffi/src/error.rs

@@ -1,7 +1,7 @@
 use std::fmt::Display;
 
 use matrix_sdk::{
-    encryption::CryptoStoreError, event_cache::EventCacheError, oidc::OidcError,
+    encryption::CryptoStoreError, event_cache::EventCacheError, oidc::OidcError, reqwest,
     send_queue::RoomSendQueueError, HttpError, IdParseError,
     NotificationSettingsError as SdkNotificationSettingsError, StoreError,
 };
@@ -26,6 +26,12 @@ impl From<anyhow::Error> for ClientError {
     }
 }
 
+impl From<reqwest::Error> for ClientError {
+    fn from(e: reqwest::Error) -> Self {
+        Self::new(e)
+    }
+}
+
 impl From<UnexpectedUniFFICallbackError> for ClientError {
     fn from(e: UnexpectedUniFFICallbackError) -> Self {
         Self::new(e)

crates/matrix-sdk/src/client/mod.rs

@@ -394,6 +394,11 @@ impl Client {
         &self.inner.base_client
     }
 
+    /// The underlying HTTP client.
+    pub fn http_client(&self) -> &reqwest::Client {
+        &self.inner.http_client.inner
+    }
+
     pub(crate) fn locks(&self) -> &ClientLocks {
         &self.inner.locks
     }