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feat: dynamic filenames for backup/debug (#207)

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* feat: generate dynamic filenames for JSON file downloads (backup and debug) based on hostname and timestamp

* fix: threadsafe getFilename
This commit is contained in:
Konstantin
2025-12-23 11:32:40 +03:00
committed by GitHub
parent 56a8574aba
commit 10ab75c055
1 changed files with 31 additions and 2 deletions
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33
src/PortalTask.h
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@@ -241,7 +241,17 @@ protected:
doc.shrinkToFit();
this->webServer->sendHeader(F("Content-Disposition"), F("attachment; filename=\"backup.json\""));
char filename[64];
getFilename(filename, sizeof(filename), "backup");
char contentDispositionHeaderValue[128];
snprintf_P(
contentDispositionHeaderValue,
sizeof(contentDispositionHeaderValue),
PSTR("attachment; filename=\"%s\""),
filename
);
this->webServer->sendHeader(F("Content-Disposition"), contentDispositionHeaderValue);
this->bufferedWebServer->send(200, F("application/json"), doc);
});
@@ -839,7 +849,18 @@ protected:
doc.shrinkToFit();
this->webServer->sendHeader(F("Content-Disposition"), F("attachment; filename=\"debug.json\""));
char filename[64];
getFilename(filename, sizeof(filename), "debug");
char contentDispositionHeaderValue[128];
snprintf_P(
contentDispositionHeaderValue,
sizeof(contentDispositionHeaderValue),
PSTR("attachment; filename=\"%s\""),
filename
);
this->webServer->sendHeader(F("Content-Disposition"), contentDispositionHeaderValue);
this->bufferedWebServer->send(200, F("application/json"), doc, true);
});
@@ -1046,4 +1067,12 @@ protected:
this->dnsServer->stop();
this->dnsServerEnabled = false;
}
static void getFilename(char* filename, size_t maxSizeFilename, const char* type) {
const time_t now = time(nullptr);
const tm* localNow = localtime(&now);
char localNowValue[20];
strftime(localNowValue, sizeof(localNowValue), PSTR("%Y-%m-%d-%H-%M-%S"), localNow);
snprintf_P(filename, maxSizeFilename, PSTR("%s_%s_%s.json"), networkSettings.hostname, localNowValue, type);
}
};