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Expose webserver's chunk api (#7134)

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* expose hidden WebServer's chunked API
This commit is contained in:
david gauchard
2020-04-07 02:49:34 +02:00
committed by GitHub
parent 3db610f6d0
commit d600cc7fa6
2 changed files with 42 additions and 7 deletions
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27
libraries/ESP8266WebServer/examples/FSBrowser/FSBrowser.ino
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@ -186,12 +186,27 @@ void handleFileList() {
Dir dir = filesystem->openDir(path);
path.clear();
String output = "[";
// use HTTP/1.1 Chunked response to avoid building a huge temporary string
if (!server.chunkedResponseModeStart(200, "text/json")) {
server.send(505, FPSTR("text/html"), FPSTR("HTTP1.1 required"));
return;
}
// use the same string for every line
String output;
output.reserve(64);
while (dir.next()) {
File entry = dir.openFile("r");
if (output != "[") {
output += ',';
if (output.length()) {
// send string from previous iteration
// as an HTTP chunk
server.sendContent(output);
output = ',';
} else {
output = '[';
}
File entry = dir.openFile("r");
bool isDir = false;
output += "{\"type\":\"";
output += (isDir) ? "dir" : "file";
@ -205,8 +220,10 @@ void handleFileList() {
entry.close();
}
// send last string
output += "]";
server.send(200, "text/json", output);
server.sendContent(output);
server.chunkedResponseFinalize();
}
void setup(void) {