diff --git a/code/components/jomjol_fileserver_ota/server_file.cpp b/code/components/jomjol_fileserver_ota/server_file.cpp
index 8bfc31e3b..fa777205a 100644
--- a/code/components/jomjol_fileserver_ota/server_file.cpp
+++ b/code/components/jomjol_fileserver_ota/server_file.cpp
@@ -49,8 +49,8 @@ extern "C" {
/* Max size of an individual file. Make sure this
* value is same as that set in upload_script.html */
-#define MAX_FILE_SIZE (2000*1024) // 200 KB
-#define MAX_FILE_SIZE_STR "2000KB"
+#define MAX_FILE_SIZE (8000*1024) // 8 MB
+#define MAX_FILE_SIZE_STR "8MB"
/* Scratch buffer size */
diff --git a/code/components/jomjol_fileserver_ota/server_ota.cpp b/code/components/jomjol_fileserver_ota/server_ota.cpp
index 78d03f234..eb87c1991 100644
--- a/code/components/jomjol_fileserver_ota/server_ota.cpp
+++ b/code/components/jomjol_fileserver_ota/server_ota.cpp
@@ -99,6 +99,11 @@ static bool ota_update_task(std::string fn)
int data_read;
FILE* f = OpenFileAndWait(fn.c_str(), "rb"); // vorher nur "r"
+
+ if (f == NULL) { // File does not exist
+ return false;
+ }
+
data_read = fread(ota_write_data, 1, BUFFSIZE, f);
while (data_read > 0) {
@@ -435,7 +440,7 @@ esp_err_t handler_ota_update(httpd_req_t *req)
int _result = stat(fn.c_str(), &file_stat);
printf("Ergebnis %d\n", _result);
if (_result == 0) {
- printf("Deleting file : %s", fn.c_str());
+ printf("Deleting file : %s\n", fn.c_str());
/* Delete file */
unlink(fn.c_str());
}
@@ -457,11 +462,11 @@ esp_err_t handler_ota_update(httpd_req_t *req)
gpio_handler_deinit();
if (ota_update_task(fn))
{
- resp_str = "Firmware Update Successfull!
You can restart now.";
+ resp_str = "Firmware Update Successfull! You can restart now.";
}
else
{
- resp_str = "Error during Firmware Update!!!
Please check console output.";
+ resp_str = "Error during Firmware Update!!! Please check console output.";
}
httpd_resp_send(req, resp_str, strlen(resp_str));
diff --git a/code/components/jomjol_helper/Helper.cpp b/code/components/jomjol_helper/Helper.cpp
index 6a46a4a44..eb9ab4f5e 100644
--- a/code/components/jomjol_helper/Helper.cpp
+++ b/code/components/jomjol_helper/Helper.cpp
@@ -88,8 +88,17 @@ void memCopyGen(uint8_t* _source, uint8_t* _target, int _size)
FILE* OpenFileAndWait(const char* nm, const char* _mode, int _waitsec)
{
+ FILE *pfile;
+
printf("open file %s in mode %s\n", nm, _mode);
- FILE *pfile = fopen(nm, _mode);
+
+ if ((pfile = fopen(nm, _mode)) != NULL) {
+ printf("File %s successfully opened\n", nm);
+ }
+ else {
+ printf("Error: file %s does not exist!\n", nm);
+ return NULL;
+ }
/*
if (pfile == NULL)
diff --git a/sd-card/html/ota_page.html b/sd-card/html/ota_page.html
index f2067f67b..3eba65664 100644
--- a/sd-card/html/ota_page.html
+++ b/sd-card/html/ota_page.html
@@ -160,7 +160,7 @@