diff --git a/esp32cam-demo.ino b/esp32cam-demo.ino
index 923d27f..0ce38ce 100644
--- a/esp32cam-demo.ino
+++ b/esp32cam-demo.ino
@@ -893,7 +893,7 @@ bool handleImg() {
int imgToShow = imageCounter; // default to showing most recent file
// get image number from url parameter
- if (server.hasArg("img")) {
+ if (server.hasArg("img") && sdcardPresent) {
String Tvalue = server.arg("img"); // read value
imgToShow = Tvalue.toInt(); // convert string to int
if (imgToShow < 1 || imgToShow > imageCounter) imgToShow = imageCounter; // validate image number
@@ -912,20 +912,33 @@ bool handleImg() {
pRes = 1; // flag sucess
} else {
if (serialDebug) Serial.println("Error: image file not found");
- WiFiClient client = server.client(); // open link with client
- client.write(" \n");
+ sendHeader(client, "Display stored image");
client.write("Error: Image not found
\n");
- delay(3);
- client.stop();
+ client.write("
Return\n"); // link back
+ sendFooter(client); // close web page
}
}
// if stored in SPIFFS
if (!sdcardPresent) {
if (serialDebug) Serial.println("Displaying image from spiffs");
+
+ // check file exists
+ if (!SPIFFS.exists(spiffsFilename)) {
+ sendHeader(client, "Display stored image");
+ client.write("Error: No image found to display\n");
+ client.write("
Return\n"); // link back
+ sendFooter(client); // close web page
+ return 0;
+ }
+
File f = SPIFFS.open(spiffsFilename, "r"); // read file from spiffs
if (!f) {
if (serialDebug) Serial.println("Error reading " + spiffsFilename);
+ sendHeader(client, "Display stored image");
+ client.write("Error reading file from Spiffs\n");
+ client.write("
Return\n"); // link back
+ sendFooter(client); // close web page
}
else {
size_t sent = server.streamFile(f, "image/jpeg"); // send file to web page