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Example WebServer WebServer.ino does not redirect when index.htm does not exist (#9142)

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Matthias Hertel 2024-06-15 20:32:27 +02:00 committed by GitHub
parent 9afeaf5694
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2 changed files with 6 additions and 8 deletions
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12
libraries/ESP8266WebServer/examples/WebServer/README.md
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@ -21,8 +21,6 @@ It features
* Only files in the root folder are supported for simplicity - no directories. * Only files in the root folder are supported for simplicity - no directories.
## Implementing a web server ## Implementing a web server
The ESP8266WebServer library offers a simple path to implement a web server on a ESP8266 board. The ESP8266WebServer library offers a simple path to implement a web server on a ESP8266 board.
@ -90,7 +88,7 @@ that actually has only one line of functionality by sending a string as result t
> }); > });
> ``` > ```
Here the text from a static String with html code is returned instead of a file from the filesystem. Here the text from a static string with html code is returned instead of a file from the filesystem.
The content of this string can be found in the file `builtinfiles.h`. It contains a small html+javascript implementation The content of this string can be found in the file `builtinfiles.h`. It contains a small html+javascript implementation
that allows uploading new files into the empty filesystem. that allows uploading new files into the empty filesystem.
@ -100,14 +98,14 @@ Just open <http://webserver/$upload.htm> and drag some files from the data folde
## Registering a function to handle requests to the server without a path ## Registering a function to handle requests to the server without a path
Often servers are addressed by using the base URL like <http://webserver/> where no further path details is given. Often servers are addressed by using the base URL like <http://webserver/> where no further path details is given.
Of course we like the user to be redirected to something usable. Therefore the `handleRoot()` function is registered: Of course we like the user to be redirected to something usable. Therefore the `handleRedirect()` function is registered:
> ```CPP > ```CPP
> server.on("/$upload.htm", handleRoot); > server.on("/", HTTP_GET, handleRedirect);
> ``` > ```
The `handleRoot()` function checks the filesystem for the file named **/index.htm** and creates a redirect to this file when the file exists. The `handleRedirect()` function checks the filesystem for the file named **/index.htm** and creates a redirect
Otherwise the redirection goes to the built-in **/$upload.htm** web page. response to this file when the file exists. Otherwise the redirection goes to the built-in **/$upload.htm** web page.

2
libraries/ESP8266WebServer/examples/WebServer/WebServer.ino
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@ -41,7 +41,7 @@ void handleRedirect() {
TRACE("Redirect..."); TRACE("Redirect...");
String url = "/index.htm"; String url = "/index.htm";
if (!LittleFS.exists(url)) { url = "/$update.htm"; } if (!LittleFS.exists(url)) { url = "/$upload.htm"; }
server.redirect(url); server.redirect(url);
} // handleRedirect() } // handleRedirect()