Can manually download an OTA update

central_backend/src/server/servers.rs

@@ -191,13 +191,16 @@ pub async fn secure_server(energy_actor: EnergyActorAddr) -> anyhow::Result<()>
                 "/web_api/ota/{platform}/{version}",
                 web::post().to(ota_controller::upload_firmware),
             )
+            .route(
+                "/web_api/ota/{platform}/{version}",
+                web::get().to(ota_controller::download_firmware),
+            )
+            // TODO : delete an OTA file
             .route("/web_api/ota", web::get().to(ota_controller::list_all_ota))
             .route(
                 "/web_api/ota/{platform}",
                 web::get().to(ota_controller::list_updates_platform),
             )
-            // TODO : download a OTA file
-            // TODO : delete an OTA file
             .route(
                 "/web_api/ota/set_desired_version",
                 web::post().to(ota_controller::set_desired_version),

central_backend/src/server/web_api/ota_controller.rs

@@ -20,14 +20,15 @@ pub struct UploadForm {
 }
 
 #[derive(serde::Deserialize)]
-pub struct UploadPath {
+pub struct SpecificOTAVersionPath {
     platform: OTAPlatform,
     version: semver::Version,
 }
 
+/// Upload a new firmware update
 pub async fn upload_firmware(
     MultipartForm(form): MultipartForm<UploadForm>,
-    path: web::Path<UploadPath>,
+    path: web::Path<SpecificOTAVersionPath>,
 ) -> HttpResult {
     if ota_manager::update_exists(path.platform, &path.version)? {
         return Ok(HttpResponse::Conflict()
@@ -53,6 +54,26 @@ pub async fn upload_firmware(
     Ok(HttpResponse::Accepted().body("OTA update successfully saved."))
 }
 
+/// Download a firmware update
+pub async fn download_firmware(path: web::Path<SpecificOTAVersionPath>) -> HttpResult {
+    if !ota_manager::update_exists(path.platform, &path.version)? {
+        return Ok(HttpResponse::NotFound().json("The requested firmware was not found!"));
+    }
+
+    let firmware = ota_manager::get_ota_update(path.platform, &path.version)?;
+
+    Ok(HttpResponse::Ok()
+        .content_type("application/octet-stream")
+        .append_header((
+            "content-disposition",
+            format!(
+                "attachment; filename=\"{}-{}.bin\"",
+                path.platform, path.version
+            ),
+        ))
+        .body(firmware))
+}
+
 /// Get the list of all OTA updates
 pub async fn list_all_ota() -> HttpResult {
     Ok(HttpResponse::Ok().json(ota_manager::get_all_ota_updates()?))

central_frontend/src/api/OTAApi.ts

@@ -37,6 +37,13 @@ export class OTAAPI {
     });
   }
 
+  /**
+   * Get the link to download an OTA update
+   */
+  static DownloadOTAUpdateURL(platform: string, version: string): string {
+    return APIClient.backendURL() + `/ota/${platform}/${version}`;
+  }
+
   /**
    * Get the list of OTA updates
    */

central_frontend/src/routes/OTARoute.tsx

@@ -1,3 +1,5 @@
+import DownloadIcon from "@mui/icons-material/Download";
+import FileUploadIcon from "@mui/icons-material/FileUpload";
 import {
   IconButton,
   Paper,
@@ -9,13 +11,13 @@ import {
   TableRow,
   Tooltip,
 } from "@mui/material";
-import { SolarEnergyRouteContainer } from "../widgets/SolarEnergyRouteContainer";
+import { filesize } from "filesize";
-import FileUploadIcon from "@mui/icons-material/FileUpload";
-import { UploadUpdateDialog } from "../dialogs/UploadUpdateDialog";
 import React from "react";
 import { OTAAPI, OTAUpdate } from "../api/OTAApi";
+import { UploadUpdateDialog } from "../dialogs/UploadUpdateDialog";
 import { AsyncWidget } from "../widgets/AsyncWidget";
-import { filesize } from "filesize";
+import { RouterLink } from "../widgets/RouterLink";
+import { SolarEnergyRouteContainer } from "../widgets/SolarEnergyRouteContainer";
 
 export function OTARoute(): React.ReactElement {
   const [list, setList] = React.useState<string[] | undefined>();
@@ -97,6 +99,7 @@ function _OTAList(p: { list: OTAUpdate[] }): React.ReactElement {
             <TableCell align="center">Platform</TableCell>
             <TableCell align="center">Version</TableCell>
             <TableCell align="center">File size</TableCell>
+            <TableCell align="center"></TableCell>
           </TableRow>
         </TableHead>
         <TableBody>
@@ -105,6 +108,17 @@ function _OTAList(p: { list: OTAUpdate[] }): React.ReactElement {
               <TableCell align="center">{row.platform}</TableCell>
               <TableCell align="center">{row.version}</TableCell>
               <TableCell align="center">{filesize(row.file_size)}</TableCell>
+              <TableCell align="center">
+                <Tooltip title="Download a copy of the firmware">
+                  <RouterLink
+                    to={OTAAPI.DownloadOTAUpdateURL(row.platform, row.version)}
+                  >
+                    <IconButton>
+                      <DownloadIcon />
+                    </IconButton>
+                  </RouterLink>
+                </Tooltip>
+              </TableCell>
             </TableRow>
           ))}
         </TableBody>