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esp-link/user/cgi.c

66 lines
2.4 KiB

/*
Some random cgi routines.
*/
/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* Jeroen Domburg <jeroen@spritesmods.com> wrote this file. As long as you retain
* this notice you can do whatever you want with this stuff. If we meet some day,
* and you think this stuff is worth it, you can buy me a beer in return.
* ----------------------------------------------------------------------------
* Heavily modified and enhanced by Thorsten von Eicken in 2015
* ----------------------------------------------------------------------------
*/
#include <esp8266.h>
#include "cgi.h"
#include "espfs.h"
void ICACHE_FLASH_ATTR
jsonHeader(HttpdConnData *connData, int code) {
httpdStartResponse(connData, code);
httpdHeader(connData, "Cache-Control", "no-cache, no-store, must-revalidate");
httpdHeader(connData, "Pragma", "no-cache");
httpdHeader(connData, "Expires", "0");
httpdHeader(connData, "Content-Type", "application/json");
httpdEndHeaders(connData);
}
#define TOKEN(x) (os_strcmp(token, x) == 0)
#if 0
// Handle system information variables and print their value, returns the number of
// characters appended to buff
int ICACHE_FLASH_ATTR printGlobalInfo(char *buff, int buflen, char *token) {
if (TOKEN("si_chip_id")) {
return os_sprintf(buff, "0x%x", system_get_chip_id());
} else if (TOKEN("si_freeheap")) {
return os_sprintf(buff, "%dKB", system_get_free_heap_size()/1024);
} else if (TOKEN("si_uptime")) {
uint32 t = system_get_time() / 1000000; // in seconds
return os_sprintf(buff, "%dd%dh%dm%ds", t/(24*3600), (t/(3600))%24, (t/60)%60, t%60);
} else if (TOKEN("si_boot_version")) {
return os_sprintf(buff, "%d", system_get_boot_version());
} else if (TOKEN("si_boot_address")) {
return os_sprintf(buff, "0x%x", system_get_userbin_addr());
} else if (TOKEN("si_cpu_freq")) {
return os_sprintf(buff, "%dMhz", system_get_cpu_freq());
} else {
return 0;
}
}
#endif
extern char *esp_link_version; // in user_main.c
int ICACHE_FLASH_ATTR cgiMenu(HttpdConnData *connData) {
char buff[1024];
jsonHeader(connData, 200);
os_sprintf(buff,
"{\"menu\": [\"Home\", \"/home.html\", \"Wifi\", \"/wifi/wifi.html\","
"\"\xC2\xB5" "C Console\", \"/console.html\", \"Debug log\", \"/log.html\" ],\n"
" \"version\": \"%s\" }", esp_link_version);
httpdSend(connData, buff, -1);
return HTTPD_CGI_DONE;
}