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esp-link/esp-link/cgiservices.c

433 lines
12 KiB

#include <esp8266.h>
#include "cgiwifi.h"
#include "cgi.h"
#include "config.h"
#include "sntp.h"
#include "cgimqtt.h"
#ifdef SYSLOG
#include "syslog.h"
#endif
#include "time.h"
#include "cgiservices.h"
#ifdef CGISERVICES_DBG
#define DBG(format, ...) do { os_printf(format, ## __VA_ARGS__); } while(0)
#else
#define DBG(format, ...) do { } while(0)
#endif
char* rst_codes[7] = {
"normal", "wdt reset", "exception", "soft wdt", "restart", "deep sleep", "external",
};
char* flash_maps[7] = {
"512KB:256/256", "256KB", "1MB:512/512", "2MB:512/512", "4MB:512/512",
"2MB:1024/1024", "4MB:1024/1024"
};
static ETSTimer reassTimer;
// Daylight Savings Time support
static ETSTimer dstTimer;
static bool old_dst;
// Cgi to update system info (name/description)
int ICACHE_FLASH_ATTR cgiSystemSet(HttpdConnData *connData) {
if (connData->conn == NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
int8_t n = getStringArg(connData, "name", flashConfig.hostname, sizeof(flashConfig.hostname));
int8_t d = getStringArg(connData, "description", flashConfig.sys_descr, sizeof(flashConfig.sys_descr));
if (n < 0 || d < 0) return HTTPD_CGI_DONE; // getStringArg has produced an error response
if (n > 0) {
// schedule hostname change-over
os_timer_disarm(&reassTimer);
os_timer_setfn(&reassTimer, configWifiIP, NULL);
os_timer_arm(&reassTimer, 1000, 0); // 1 second for the response of this request to make it
}
if (configSave()) {
httpdStartResponse(connData, 204);
httpdEndHeaders(connData);
}
else {
httpdStartResponse(connData, 500);
httpdEndHeaders(connData);
httpdSend(connData, "Failed to save config", -1);
}
return HTTPD_CGI_DONE;
}
// Cgi to return various System information
int ICACHE_FLASH_ATTR cgiSystemInfo(HttpdConnData *connData) {
char buff[1024];
if (connData->conn == NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
uint8 part_id = system_upgrade_userbin_check();
uint32_t fid = spi_flash_get_id();
struct rst_info *rst_info = system_get_rst_info();
os_sprintf(buff,
"{ "
"\"name\": \"%s\", "
"\"reset cause\": \"%d=%s\", "
"\"size\": \"%s\", "
"\"upload-size\": \"%d\", "
"\"id\": \"0x%02X 0x%04X\", "
"\"partition\": \"%s\", "
"\"slip\": \"%s\", "
"\"mqtt\": \"%s/%s\", "
"\"baud\": \"%d\", "
"\"description\": \"%s\""
" }",
flashConfig.hostname,
rst_info->reason,
rst_codes[rst_info->reason],
flash_maps[system_get_flash_size_map()],
getUserPageSectionEnd()-getUserPageSectionStart(),
fid & 0xff, (fid & 0xff00) | ((fid >> 16) & 0xff),
part_id ? "user2.bin" : "user1.bin",
flashConfig.slip_enable ? "enabled" : "disabled",
flashConfig.mqtt_enable ? "enabled" : "disabled",
mqttState(),
flashConfig.baud_rate,
flashConfig.sys_descr
);
jsonHeader(connData, 200);
httpdSend(connData, buff, -1);
return HTTPD_CGI_DONE;
}
static bool ICACHE_FLASH_ATTR isDSTEurope(struct tm *tp) {
int mon = tp->tm_mon + 1;
if (mon < 3 || tp->tm_mon > 11) return false;
if (mon > 3 && tp->tm_mon < 11) return true;
int previousSunday = tp->tm_mday - tp->tm_wday;
if (mon == 10) {
if (previousSunday < 25)
return true;
if (tp->tm_wday > 0)
return false;
if (tp->tm_hour < 2)
return true;
return false;
}
if (mon == 3) {
if (previousSunday < 25)
return false;
if (tp->tm_wday > 0)
return true;
if (tp->tm_hour < 2)
return false;
return true;
}
return true;
}
static bool ICACHE_FLASH_ATTR isDSTUSA(struct tm *tp) {
int month = tp->tm_mon + 1;
// January, february, and december are out.
if (month < 3 || month > 11)
return false;
// April to October are in
if (month > 3 && month < 11)
return true;
int previousSunday = tp->tm_mday - tp->tm_wday;
// In march, we are DST if our previous sunday was on or after the 8th.
if (month == 3)
return previousSunday >= 8;
// In november we must be before the first sunday to be dst.
// That means the previous sunday must be before the 1st.
return previousSunday <= 0;
}
/*
* When adding more regions, this must be extended.
* If someone needs a half hour timezone, then it might be better to change
* the return type to int instead of bool.
* It could then mean the number of minutes to add.
*/
static bool ICACHE_FLASH_ATTR isDST(struct tm *tp) {
switch (flashConfig.dst_mode) {
case DST_EUROPE:
return isDSTEurope(tp);
case DST_USA:
return isDSTUSA(tp);
case DST_NONE:
default:
return false;
}
}
static ICACHE_FLASH_ATTR char *dstMode2text(int dm) {
switch(dm) {
case DST_EUROPE:
return "Europe";
case DST_USA:
return "USA";
case DST_NONE:
default:
return "None";
}
}
#if 1
/*
* For debugging only
* This function is called yet another timeout after changing the timezone offset.
* This is the only way to report the time correctly if we're in DST.
*/
static void ICACHE_FLASH_ATTR dstDelayed2() {
time_t ts = sntp_get_current_timestamp();
if (ts < 10000)
return;
struct tm *tp = gmtime(&ts);
os_printf("dstDelayed (dst) : date %04d-%02d-%02d time %02d:%02d:%02d\n",
tp->tm_year + 1900, tp->tm_mon + 1, tp->tm_mday, tp->tm_hour, tp->tm_min, tp->tm_sec);
}
#endif
/*
* This gets called a while after initializing SNTP.
* The assumption is we will now know the date/time so we can determine whether we're in
* a Daylight Savings Time period.
* And then set the time offset accordingly.
*/
static void ICACHE_FLASH_ATTR dstDelayed() {
time_t ts = sntp_get_current_timestamp();
if (ts < 10000)
return; // FIX ME failed to obtain time. Now what ?
struct tm *tp = gmtime(&ts);
bool dst = isDST(tp);
os_printf("dstDelayed : date %04d-%02d-%02d time %02d:%02d:%02d, wday = %d, DST = %s (%s)\n",
tp->tm_year + 1900, tp->tm_mon + 1, tp->tm_mday, tp->tm_hour, tp->tm_min, tp->tm_sec,
tp->tm_wday, dst ? "true" : "false", dstMode2text(flashConfig.dst_mode));
old_dst = dst;
// Only change the timezone offset if we're in DST
if (dst) {
// Changing timezone offset requires a SNTP stop/start.
sntp_stop();
if (! sntp_set_timezone(flashConfig.timezone_offset + 1))
os_printf("sntp_set_timezone(%d) failed\n", flashConfig.timezone_offset + 1);
sntp_init();
#if 1
// FIX ME for debugging only
os_timer_disarm(&dstTimer);
os_timer_setfn(&dstTimer, dstDelayed2, NULL);
os_timer_arm(&dstTimer, 5000, 0); // wait 5 seconds
#endif
}
}
void ICACHE_FLASH_ATTR cgiServicesSNTPInit() {
if (flashConfig.sntp_server[0] != '\0') {
sntp_stop();
if (true == sntp_set_timezone(flashConfig.timezone_offset)) {
sntp_setservername(0, flashConfig.sntp_server);
sntp_init();
}
old_dst = false;
// If we support daylight savings time, delay setting the timezone until we know the date/time
if (flashConfig.dst_mode != 0) {
os_timer_disarm(&dstTimer);
os_timer_setfn(&dstTimer, dstDelayed, NULL);
os_timer_arm(&dstTimer, 5000, 0); // wait 5 seconds
DBG("SNTP timesource set to %s with offset %d, awaiting DST info\n",
flashConfig.sntp_server, flashConfig.timezone_offset);
} else {
DBG("SNTP timesource set to %s with offset %d\n",
flashConfig.sntp_server, flashConfig.timezone_offset);
}
}
}
/*
* Check whether to change DST, at every CMD_GET_TIME call.
*
* If we need to change, then the next call to sntp_get_current_timestamp() will return 0
* so a retry will be required. The apps already had to cope with such situations, I believe.
*/
void ICACHE_FLASH_ATTR cgiServicesCheckDST() {
if (flashConfig.dst_mode == 0)
return;
time_t ts = sntp_get_current_timestamp();
if (ts < 10000)
return; // FIX ME failed to obtain time. Now what ?
struct tm *tp = gmtime(&ts);
bool dst = isDST(tp);
if (dst != old_dst) {
// Just calling this would be easy but too slow, we already know the new DST setting.
// cgiServicesSNTPInit();
old_dst = dst;
int add = dst ? 1 : 0;
sntp_stop();
if (! sntp_set_timezone(flashConfig.timezone_offset + add))
os_printf("sntp_set_timezone(%d) failed\n", flashConfig.timezone_offset + add);
sntp_init();
#if 1
// FIX ME for debugging only
os_timer_disarm(&dstTimer);
os_timer_setfn(&dstTimer, dstDelayed2, NULL);
os_timer_arm(&dstTimer, 5000, 0); // wait 5 seconds
#endif
}
}
int ICACHE_FLASH_ATTR cgiServicesInfo(HttpdConnData *connData) {
char buff[1024];
if (connData->conn == NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
os_sprintf(buff,
"{ "
#ifdef SYSLOG
"\"syslog_host\": \"%s\", "
"\"syslog_minheap\": %d, "
"\"syslog_filter\": %d, "
"\"syslog_showtick\": \"%s\", "
"\"syslog_showdate\": \"%s\", "
#endif
"\"timezone_offset\": %d, "
"\"sntp_server\": \"%s\", "
"\"mdns_enable\": \"%s\", "
"\"mdns_servername\": \"%s\", "
"\"dst_mode\": \"%d\" "
" }",
#ifdef SYSLOG
flashConfig.syslog_host,
flashConfig.syslog_minheap,
flashConfig.syslog_filter,
flashConfig.syslog_showtick ? "enabled" : "disabled",
flashConfig.syslog_showdate ? "enabled" : "disabled",
#endif
flashConfig.timezone_offset,
flashConfig.sntp_server,
flashConfig.mdns_enable ? "enabled" : "disabled",
flashConfig.mdns_servername,
#if 0
flashConfig.dst_mode ?
(flashConfig.dst_mode == DST_EUROPE ? "Europe" : "USA")
: "None"
#endif
flashConfig.dst_mode
);
jsonHeader(connData, 200);
httpdSend(connData, buff, -1);
return HTTPD_CGI_DONE;
}
int ICACHE_FLASH_ATTR cgiServicesSet(HttpdConnData *connData) {
if (connData->conn == NULL) return HTTPD_CGI_DONE; // Connection aborted. Clean up.
int8_t syslog = 0;
syslog |= getStringArg(connData, "syslog_host", flashConfig.syslog_host, sizeof(flashConfig.syslog_host));
if (syslog < 0) return HTTPD_CGI_DONE;
syslog |= getUInt16Arg(connData, "syslog_minheap", &flashConfig.syslog_minheap);
if (syslog < 0) return HTTPD_CGI_DONE;
syslog |= getUInt8Arg(connData, "syslog_filter", &flashConfig.syslog_filter);
if (syslog < 0) return HTTPD_CGI_DONE;
syslog |= getBoolArg(connData, "syslog_showtick", &flashConfig.syslog_showtick);
if (syslog < 0) return HTTPD_CGI_DONE;
syslog |= getBoolArg(connData, "syslog_showdate", &flashConfig.syslog_showdate);
if (syslog < 0) return HTTPD_CGI_DONE;
#ifdef SYSLOG
if (syslog > 0) {
syslog_init(flashConfig.syslog_host);
}
#endif
int8_t sntp = 0;
sntp |= getInt8Arg(connData, "timezone_offset", &flashConfig.timezone_offset);
if (sntp < 0) return HTTPD_CGI_DONE;
sntp |= getStringArg(connData, "sntp_server", flashConfig.sntp_server, sizeof(flashConfig.sntp_server));
if (sntp < 0) return HTTPD_CGI_DONE;
sntp |= getUInt8Arg(connData, "dst_mode", &flashConfig.dst_mode);
os_printf("DSTMODE %d\n", flashConfig.dst_mode);
if (sntp < 0) return HTTPD_CGI_DONE;
if (sntp > 0) {
cgiServicesSNTPInit();
}
int8_t mdns = 0;
mdns |= getBoolArg(connData, "mdns_enable", &flashConfig.mdns_enable);
if (mdns < 0) return HTTPD_CGI_DONE;
if (mdns > 0) {
if (flashConfig.mdns_enable){
DBG("Services: MDNS Enabled\n");
struct ip_info ipconfig;
wifi_get_ip_info(STATION_IF, &ipconfig);
if (wifiState == wifiGotIP && ipconfig.ip.addr != 0) {
wifiStartMDNS(ipconfig.ip);
}
}
else {
DBG("Services: MDNS Disabled\n");
espconn_mdns_server_unregister();
espconn_mdns_close();
mdns_started = true;
}
}
else {
mdns |= getStringArg(connData, "mdns_servername", flashConfig.mdns_servername, sizeof(flashConfig.mdns_servername));
if (mdns < 0) return HTTPD_CGI_DONE;
if (mdns > 0 && mdns_started) {
DBG("Services: MDNS Servername Updated\n");
espconn_mdns_server_unregister();
espconn_mdns_close();
struct ip_info ipconfig;
wifi_get_ip_info(STATION_IF, &ipconfig);
if (wifiState == wifiGotIP && ipconfig.ip.addr != 0) {
wifiStartMDNS(ipconfig.ip);
}
}
}
if (configSave()) {
httpdStartResponse(connData, 204);
httpdEndHeaders(connData);
}
else {
httpdStartResponse(connData, 500);
httpdEndHeaders(connData);
httpdSend(connData, "Failed to save config", -1);
}
return HTTPD_CGI_DONE;
}