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workaround_3382
WLED/wled00/json.cpp
Frank e2886e83b3
workaround for #3382 
On esp32, its possible that two threads (async_tcp, looptask) are sending out JSON via AsyncWebServer in parallel 
- serveJson() responds to json/si, and 
- updateInterfaces() is sending JSON state info using sendDataWs(). 

This workaround uses the INTERFACE_UPDATE_COOLDOWN timer  to delay the second webSocket send command so it does not (usually) interfere with the first.

It looks like the root cause that parts of AsyncWebServer are not thread-safe, and the payloads from a second ->send() call may corrupt the previous one if still being sent out.  The problem should be solved properly in AsyncWebServer, however until that happens, this workaround help to reduce the frequency of errors.
2023-10-05 15:21:16 +02:00

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#include "wled.h"
#include "palettes.h"
#define JSON_PATH_STATE 1
#define JSON_PATH_INFO 2
#define JSON_PATH_STATE_INFO 3
#define JSON_PATH_NODES 4
#define JSON_PATH_PALETTES 5
#define JSON_PATH_FXDATA 6
#define JSON_PATH_NETWORKS 7
#define JSON_PATH_EFFECTS 8
/*
* JSON API (De)serialization
*/
bool deserializeSegment(JsonObject elem, byte it, byte presetId)
{
byte id = elem["id"] | it;
if (id >= strip.getMaxSegments()) return false;
bool newSeg = false;
int stop = elem["stop"] | -1;
// append segment
if (id >= strip.getSegmentsNum()) {
if (stop <= 0) return false; // ignore empty/inactive segments
strip.appendSegment(Segment(0, strip.getLengthTotal()));
id = strip.getSegmentsNum()-1; // segments are added at the end of list
newSeg = true;
}
//DEBUG_PRINTLN("-- JSON deserialize segment.");
Segment& seg = strip.getSegment(id);
//DEBUG_PRINTF("-- Original segment: %p\n", &seg);
Segment prev = seg; //make a backup so we can tell if something changed
//DEBUG_PRINTF("-- Duplicate segment: %p\n", &prev);
uint16_t start = elem["start"] | seg.start;
if (stop < 0) {
int len = elem["len"];
stop = (len > 0) ? start + len : seg.stop;
}
// 2D segments
uint16_t startY = elem["startY"] | seg.startY;
uint16_t stopY = elem["stopY"] | seg.stopY;
//repeat, multiplies segment until all LEDs are used, or max segments reached
bool repeat = elem["rpt"] | false;
if (repeat && stop>0) {
elem.remove("id"); // remove for recursive call
elem.remove("rpt"); // remove for recursive call
elem.remove("n"); // remove for recursive call
uint16_t len = stop - start;
for (size_t i=id+1; i<strip.getMaxSegments(); i++) {
start = start + len;
if (start >= strip.getLengthTotal()) break;
//TODO: add support for 2D
elem["start"] = start;
elem["stop"] = start + len;
elem["rev"] = !elem["rev"]; // alternate reverse on even/odd segments
deserializeSegment(elem, i, presetId); // recursive call with new id
}
return true;
}
if (elem["n"]) {
// name field exists
if (seg.name) { //clear old name
delete[] seg.name;
seg.name = nullptr;
}
const char * name = elem["n"].as<const char*>();
size_t len = 0;
if (name != nullptr) len = strlen(name);
if (len > 0) {
if (len > WLED_MAX_SEGNAME_LEN) len = WLED_MAX_SEGNAME_LEN;
seg.name = new char[len+1];
if (seg.name) strlcpy(seg.name, name, WLED_MAX_SEGNAME_LEN+1);
} else {
// but is empty (already deleted above)
elem.remove("n");
}
} else if (start != seg.start || stop != seg.stop) {
// clearing or setting segment without name field
if (seg.name) {
delete[] seg.name;
seg.name = nullptr;
}
}
uint16_t grp = elem["grp"] | seg.grouping;
uint16_t spc = elem[F("spc")] | seg.spacing;
uint16_t of = seg.offset;
uint8_t soundSim = elem["si"] | seg.soundSim;
uint8_t map1D2D = elem["m12"] | seg.map1D2D;
if ((spc>0 && spc!=seg.spacing) || seg.map1D2D!=map1D2D) seg.fill(BLACK); // clear spacing gaps
seg.map1D2D = constrain(map1D2D, 0, 7);
seg.soundSim = constrain(soundSim, 0, 1);
uint8_t set = elem[F("set")] | seg.set;
seg.set = constrain(set, 0, 3);
uint16_t len = 1;
if (stop > start) len = stop - start;
int offset = elem[F("of")] | INT32_MAX;
if (offset != INT32_MAX) {
int offsetAbs = abs(offset);
if (offsetAbs > len - 1) offsetAbs %= len;
if (offset < 0) offsetAbs = len - offsetAbs;
of = offsetAbs;
}
if (stop > start && of > len -1) of = len -1;
// update segment (delete if necessary)
// do not call seg.setUp() here, as it may cause a crash due to concurrent access if the segment is currently drawing effects
// WS2812FX handles queueing of the change
strip.setSegment(id, start, stop, grp, spc, of, startY, stopY);
if (newSeg) seg.refreshLightCapabilities(); // fix for #3403
if (seg.reset && seg.stop == 0) {
if (id == strip.getMainSegmentId()) strip.setMainSegmentId(0); // fix for #3403
return true; // segment was deleted & is marked for reset, no need to change anything else
}
byte segbri = seg.opacity;
if (getVal(elem["bri"], &segbri)) {
if (segbri > 0) seg.setOpacity(segbri);
seg.setOption(SEG_OPTION_ON, segbri); // use transition
}
bool on = elem["on"] | seg.on;
if (elem["on"].is<const char*>() && elem["on"].as<const char*>()[0] == 't') on = !on;
seg.setOption(SEG_OPTION_ON, on); // use transition
bool frz = elem["frz"] | seg.freeze;
if (elem["frz"].is<const char*>() && elem["frz"].as<const char*>()[0] == 't') frz = !seg.freeze;
seg.freeze = frz;
seg.setCCT(elem["cct"] | seg.cct);
JsonArray colarr = elem["col"];
if (!colarr.isNull())
{
if (seg.getLightCapabilities() & 3) {
// segment has RGB or White
for (size_t i = 0; i < 3; i++)
{
int rgbw[] = {0,0,0,0};
bool colValid = false;
JsonArray colX = colarr[i];
if (colX.isNull()) {
byte brgbw[] = {0,0,0,0};
const char* hexCol = colarr[i];
if (hexCol == nullptr) { //Kelvin color temperature (or invalid), e.g 2400
int kelvin = colarr[i] | -1;
if (kelvin < 0) continue;
if (kelvin == 0) seg.setColor(i, 0);
if (kelvin > 0) colorKtoRGB(kelvin, brgbw);
colValid = true;
} else { //HEX string, e.g. "FFAA00"
colValid = colorFromHexString(brgbw, hexCol);
}
for (size_t c = 0; c < 4; c++) rgbw[c] = brgbw[c];
} else { //Array of ints (RGB or RGBW color), e.g. [255,160,0]
byte sz = colX.size();
if (sz == 0) continue; //do nothing on empty array
copyArray(colX, rgbw, 4);
colValid = true;
}
if (!colValid) continue;
seg.setColor(i, RGBW32(rgbw[0],rgbw[1],rgbw[2],rgbw[3]));
if (seg.mode == FX_MODE_STATIC) strip.trigger(); //instant refresh
}
} else {
// non RGB & non White segment (usually On/Off bus)
seg.setColor(0, ULTRAWHITE);
seg.setColor(1, BLACK);
}
}
// lx parser
#ifdef WLED_ENABLE_LOXONE
int lx = elem[F("lx")] | -1;
if (lx > 0) {
parseLxJson(lx, id, false);
}
int ly = elem[F("ly")] | -1;
if (ly > 0) {
parseLxJson(ly, id, true);
}
#endif
#ifndef WLED_DISABLE_2D
bool reverse = seg.reverse;
bool mirror = seg.mirror;
#endif
seg.selected = elem["sel"] | seg.selected;
seg.reverse = elem["rev"] | seg.reverse;
seg.mirror = elem["mi"] | seg.mirror;
#ifndef WLED_DISABLE_2D
bool reverse_y = seg.reverse_y;
bool mirror_y = seg.mirror_y;
seg.reverse_y = elem["rY"] | seg.reverse_y;
seg.mirror_y = elem["mY"] | seg.mirror_y;
seg.transpose = elem[F("tp")] | seg.transpose;
if (seg.is2D() && seg.map1D2D == M12_pArc && (reverse != seg.reverse || reverse_y != seg.reverse_y || mirror != seg.mirror || mirror_y != seg.mirror_y)) seg.fill(BLACK); // clear entire segment (in case of Arc 1D to 2D expansion)
#endif
byte fx = seg.mode;
if (getVal(elem["fx"], &fx, 0, strip.getModeCount())) { //load effect ('r' random, '~' inc/dec, 0-255 exact value)
if (!presetId && currentPlaylist>=0) unloadPlaylist();
if (fx != seg.mode) seg.setMode(fx, elem[F("fxdef")]);
}
//getVal also supports inc/decrementing and random
getVal(elem["sx"], &seg.speed);
getVal(elem["ix"], &seg.intensity);
uint8_t pal = seg.palette;
if (seg.getLightCapabilities() & 1) { // ignore palette for White and On/Off segments
if (getVal(elem["pal"], &pal)) seg.setPalette(pal);
}
getVal(elem["c1"], &seg.custom1);
getVal(elem["c2"], &seg.custom2);
uint8_t cust3 = seg.custom3;
getVal(elem["c3"], &cust3); // we can't pass reference to bifield
seg.custom3 = constrain(cust3, 0, 31);
seg.check1 = elem["o1"] | seg.check1;
seg.check2 = elem["o2"] | seg.check2;
seg.check3 = elem["o3"] | seg.check3;
JsonArray iarr = elem[F("i")]; //set individual LEDs
if (!iarr.isNull()) {
uint8_t oldMap1D2D = seg.map1D2D;
seg.map1D2D = M12_Pixels; // no mapping
// set brightness immediately and disable transition
transitionDelayTemp = 0;
jsonTransitionOnce = true;
strip.setBrightness(scaledBri(bri), true);
// freeze and init to black
if (!seg.freeze) {
seg.freeze = true;
seg.fill(BLACK);
}
uint16_t start = 0, stop = 0;
byte set = 0; //0 nothing set, 1 start set, 2 range set
for (size_t i = 0; i < iarr.size(); i++) {
if(iarr[i].is<JsonInteger>()) {
if (!set) {
start = abs(iarr[i].as<int>());
set++;
} else {
stop = abs(iarr[i].as<int>());
set++;
}
} else { //color
uint8_t rgbw[] = {0,0,0,0};
JsonArray icol = iarr[i];
if (!icol.isNull()) { //array, e.g. [255,0,0]
byte sz = icol.size();
if (sz > 0 && sz < 5) copyArray(icol, rgbw);
} else { //hex string, e.g. "FF0000"
byte brgbw[] = {0,0,0,0};
const char* hexCol = iarr[i];
if (colorFromHexString(brgbw, hexCol)) {
for (size_t c = 0; c < 4; c++) rgbw[c] = brgbw[c];
}
}
if (set < 2 || stop <= start) stop = start + 1;
uint32_t c = gamma32(RGBW32(rgbw[0], rgbw[1], rgbw[2], rgbw[3]));
while (start < stop) seg.setPixelColor(start++, c);
set = 0;
}
}
seg.map1D2D = oldMap1D2D; // restore mapping
strip.trigger(); // force segment update
}
// send UDP/WS if segment options changed (except selection; will also deselect current preset)
if (seg.differs(prev) & 0x7F) stateChanged = true;
return true;
}
// deserializes WLED state (fileDoc points to doc object if called from web server)
// presetId is non-0 if called from handlePreset()
bool deserializeState(JsonObject root, byte callMode, byte presetId)
{
bool stateResponse = root[F("v")] | false;
#if defined(WLED_DEBUG) && defined(WLED_DEBUG_HOST)
netDebugEnabled = root[F("debug")] | netDebugEnabled;
#endif
bool onBefore = bri;
getVal(root["bri"], &bri);
bool on = root["on"] | (bri > 0);
if (!on != !bri) toggleOnOff();
if (root["on"].is<const char*>() && root["on"].as<const char*>()[0] == 't') {
if (onBefore || !bri) toggleOnOff(); // do not toggle off again if just turned on by bri (makes e.g. "{"on":"t","bri":32}" work)
}
if (bri && !onBefore) { // unfreeze all segments when turning on
for (size_t s=0; s < strip.getSegmentsNum(); s++) {
strip.getSegment(s).freeze = false;
}
if (realtimeMode && !realtimeOverride && useMainSegmentOnly) { // keep live segment frozen if live
strip.getMainSegment().freeze = true;
}
}
int tr = -1;
if (!presetId || currentPlaylist < 0) { //do not apply transition time from preset if playlist active, as it would override playlist transition times
tr = root[F("transition")] | -1;
if (tr >= 0)
{
transitionDelay = tr;
transitionDelay *= 100;
transitionDelayTemp = transitionDelay;
}
}
// temporary transition (applies only once)
tr = root[F("tt")] | -1;
if (tr >= 0)
{
transitionDelayTemp = tr;
transitionDelayTemp *= 100;
jsonTransitionOnce = true;
}
strip.setTransition(transitionDelayTemp); // required here for color transitions to have correct duration
tr = root[F("tb")] | -1;
if (tr >= 0) strip.timebase = ((uint32_t)tr) - millis();
JsonObject nl = root["nl"];
nightlightActive = nl["on"] | nightlightActive;
nightlightDelayMins = nl["dur"] | nightlightDelayMins;
nightlightMode = nl["mode"] | nightlightMode;
nightlightTargetBri = nl[F("tbri")] | nightlightTargetBri;
JsonObject udpn = root["udpn"];
notifyDirect = udpn["send"] | notifyDirect;
syncGroups = udpn["sgrp"] | syncGroups;
receiveNotifications = udpn["recv"] | receiveNotifications;
receiveGroups = udpn["rgrp"] | receiveGroups;
if ((bool)udpn[F("nn")]) callMode = CALL_MODE_NO_NOTIFY; //send no notification just for this request
unsigned long timein = root["time"] | UINT32_MAX; //backup time source if NTP not synced
if (timein != UINT32_MAX) {
setTimeFromAPI(timein);
if (presetsModifiedTime == 0) presetsModifiedTime = timein;
}
if (root[F("psave")].isNull()) doReboot = root[F("rb")] | doReboot;
// do not allow changing main segment while in realtime mode (may get odd results else)
if (!realtimeMode) strip.setMainSegmentId(root[F("mainseg")] | strip.getMainSegmentId()); // must be before realtimeLock() if "live"
realtimeOverride = root[F("lor")] | realtimeOverride;
if (realtimeOverride > 2) realtimeOverride = REALTIME_OVERRIDE_ALWAYS;
if (realtimeMode && useMainSegmentOnly) {
strip.getMainSegment().freeze = !realtimeOverride;
}
if (root.containsKey("live")) {
if (root["live"].as<bool>()) {
transitionDelayTemp = 0;
jsonTransitionOnce = true;
realtimeLock(65000);
} else {
exitRealtime();
}
}
int it = 0;
JsonVariant segVar = root["seg"];
if (segVar.is<JsonObject>())
{
int id = segVar["id"] | -1;
//if "seg" is not an array and ID not specified, apply to all selected/checked segments
if (id < 0) {
//apply all selected segments
//bool didSet = false;
for (size_t s = 0; s < strip.getSegmentsNum(); s++) {
Segment &sg = strip.getSegment(s);
if (sg.isSelected()) {
deserializeSegment(segVar, s, presetId);
//didSet = true;
}
}
//TODO: not sure if it is good idea to change first active but unselected segment
//if (!didSet) deserializeSegment(segVar, strip.getMainSegmentId(), presetId);
} else {
deserializeSegment(segVar, id, presetId); //apply only the segment with the specified ID
}
} else {
size_t deleted = 0;
JsonArray segs = segVar.as<JsonArray>();
for (JsonObject elem : segs) {
if (deserializeSegment(elem, it++, presetId) && !elem["stop"].isNull() && elem["stop"]==0) deleted++;
}
if (strip.getSegmentsNum() > 3 && deleted >= strip.getSegmentsNum()/2U) strip.purgeSegments(); // batch deleting more than half segments
}
usermods.readFromJsonState(root);
loadLedmap = root[F("ledmap")] | loadLedmap;
byte ps = root[F("psave")];
if (ps > 0 && ps < 251) savePreset(ps, nullptr, root);
ps = root[F("pdel")]; //deletion
if (ps > 0 && ps < 251) deletePreset(ps);
// HTTP API commands (must be handled before "ps")
const char* httpwin = root["win"];
if (httpwin) {
String apireq = "win"; apireq += '&'; // reduce flash string usage
apireq += httpwin;
handleSet(nullptr, apireq, false); // may set stateChanged
}
// applying preset (2 cases: a) API call includes all preset values ("pd"), b) API only specifies preset ID ("ps"))
byte presetToRestore = 0;
// a) already applied preset content (requires "seg" or "win" but will ignore the rest)
if (!root["pd"].isNull() && stateChanged) {
currentPreset = root[F("pd")] | currentPreset;
if (root["win"].isNull()) presetCycCurr = currentPreset; // otherwise it was set in handleSet() [set.cpp]
presetToRestore = currentPreset; // stateUpdated() will clear the preset, so we need to restore it after
//unloadPlaylist(); // applying a preset unloads the playlist, may be needed here too?
} else if (!root["ps"].isNull()) {
ps = presetCycCurr;
if (root["win"].isNull() && getVal(root["ps"], &ps, 0, 0) && ps > 0 && ps < 251 && ps != currentPreset) {
// b) preset ID only or preset that does not change state (use embedded cycling limits if they exist in getVal())
presetCycCurr = ps;
unloadPlaylist(); // applying a preset unloads the playlist
applyPreset(ps, callMode); // async load from file system (only preset ID was specified)
return stateResponse;
}
}
JsonObject playlist = root[F("playlist")];
if (!playlist.isNull() && loadPlaylist(playlist, presetId)) {
//do not notify here, because the first playlist entry will do
if (root["on"].isNull()) callMode = CALL_MODE_NO_NOTIFY;
else callMode = CALL_MODE_DIRECT_CHANGE; // possible bugfix for playlist only containing HTTP API preset FX=~
}
if (root.containsKey(F("rmcpal")) && root[F("rmcpal")].as<bool>()) {
if (strip.customPalettes.size()) {
char fileName[32];
sprintf_P(fileName, PSTR("/palette%d.json"), strip.customPalettes.size()-1);
if (WLED_FS.exists(fileName)) WLED_FS.remove(fileName);
strip.loadCustomPalettes();
}
}
stateUpdated(callMode);
if (presetToRestore) currentPreset = presetToRestore;
return stateResponse;
}
void serializeSegment(JsonObject& root, Segment& seg, byte id, bool forPreset, bool segmentBounds)
{
root["id"] = id;
if (segmentBounds) {
root["start"] = seg.start;
root["stop"] = seg.stop;
#ifndef WLED_DISABLE_2D
if (strip.isMatrix) {
root[F("startY")] = seg.startY;
root[F("stopY")] = seg.stopY;
}
#endif
}
if (!forPreset) root["len"] = seg.stop - seg.start;
root["grp"] = seg.grouping;
root[F("spc")] = seg.spacing;
root[F("of")] = seg.offset;
root["on"] = seg.on;
root["frz"] = seg.freeze;
byte segbri = seg.opacity;
root["bri"] = (segbri) ? segbri : 255;
root["cct"] = seg.cct;
root[F("set")] = seg.set;
if (segmentBounds && seg.name != nullptr) root["n"] = reinterpret_cast<const char *>(seg.name); //not good practice, but decreases required JSON buffer
// to conserve RAM we will serialize the col array manually
// this will reduce RAM footprint from ~300 bytes to 84 bytes per segment
char colstr[70]; colstr[0] = '['; colstr[1] = '\0'; //max len 68 (5 chan, all 255)
const char *format = strip.hasWhiteChannel() ? PSTR("[%u,%u,%u,%u]") : PSTR("[%u,%u,%u]");
for (size_t i = 0; i < 3; i++)
{
byte segcol[4]; byte* c = segcol;
segcol[0] = R(seg.colors[i]);
segcol[1] = G(seg.colors[i]);
segcol[2] = B(seg.colors[i]);
segcol[3] = W(seg.colors[i]);
char tmpcol[22];
sprintf_P(tmpcol, format, (unsigned)c[0], (unsigned)c[1], (unsigned)c[2], (unsigned)c[3]);
strcat(colstr, i<2 ? strcat(tmpcol, ",") : tmpcol);
}
strcat(colstr, "]");
root["col"] = serialized(colstr);
root["fx"] = seg.mode;
root["sx"] = seg.speed;
root["ix"] = seg.intensity;
root["pal"] = seg.palette;
root["c1"] = seg.custom1;
root["c2"] = seg.custom2;
root["c3"] = seg.custom3;
root["sel"] = seg.isSelected();
root["rev"] = seg.reverse;
root["mi"] = seg.mirror;
#ifndef WLED_DISABLE_2D
if (strip.isMatrix) {
root["rY"] = seg.reverse_y;
root["mY"] = seg.mirror_y;
root[F("tp")] = seg.transpose;
}
#endif
root["o1"] = seg.check1;
root["o2"] = seg.check2;
root["o3"] = seg.check3;
root["si"] = seg.soundSim;
root["m12"] = seg.map1D2D;
}
void serializeState(JsonObject root, bool forPreset, bool includeBri, bool segmentBounds, bool selectedSegmentsOnly)
{
if (includeBri) {
root["on"] = (bri > 0);
root["bri"] = briLast;
root[F("transition")] = transitionDelay/100; //in 100ms
}
if (!forPreset) {
if (errorFlag) {root[F("error")] = errorFlag; errorFlag = ERR_NONE;} //prevent error message to persist on screen
root["ps"] = (currentPreset > 0) ? currentPreset : -1;
root[F("pl")] = currentPlaylist;
usermods.addToJsonState(root);
JsonObject nl = root.createNestedObject("nl");
nl["on"] = nightlightActive;
nl["dur"] = nightlightDelayMins;
nl["mode"] = nightlightMode;
nl[F("tbri")] = nightlightTargetBri;
if (nightlightActive) {
nl[F("rem")] = (nightlightDelayMs - (millis() - nightlightStartTime)) / 1000; // seconds remaining
} else {
nl[F("rem")] = -1;
}
JsonObject udpn = root.createNestedObject("udpn");
udpn["send"] = notifyDirect;
udpn["recv"] = receiveNotifications;
udpn["sgrp"] = syncGroups;
udpn["rgrp"] = receiveGroups;
root[F("lor")] = realtimeOverride;
}
root[F("mainseg")] = strip.getMainSegmentId();
JsonArray seg = root.createNestedArray("seg");
for (size_t s = 0; s < strip.getMaxSegments(); s++) {
if (s >= strip.getSegmentsNum()) {
if (forPreset && segmentBounds && !selectedSegmentsOnly) { //disable segments not part of preset
JsonObject seg0 = seg.createNestedObject();
seg0["stop"] = 0;
continue;
} else
break;
}
Segment &sg = strip.getSegment(s);
if (forPreset && selectedSegmentsOnly && !sg.isSelected()) continue;
if (sg.isActive()) {
JsonObject seg0 = seg.createNestedObject();
serializeSegment(seg0, sg, s, forPreset, segmentBounds);
} else if (forPreset && segmentBounds) { //disable segments not part of preset
JsonObject seg0 = seg.createNestedObject();
seg0["stop"] = 0;
}
}
}
void serializeInfo(JsonObject root)
{
root[F("ver")] = versionString;
root[F("vid")] = VERSION;
//root[F("cn")] = WLED_CODENAME;
JsonObject leds = root.createNestedObject("leds");
leds[F("count")] = strip.getLengthTotal();
leds[F("pwr")] = strip.currentMilliamps;
leds["fps"] = strip.getFps();
leds[F("maxpwr")] = (strip.currentMilliamps)? strip.ablMilliampsMax : 0;
leds[F("maxseg")] = strip.getMaxSegments();
//leds[F("actseg")] = strip.getActiveSegmentsNum();
//leds[F("seglock")] = false; //might be used in the future to prevent modifications to segment config
#ifndef WLED_DISABLE_2D
if (strip.isMatrix) {
JsonObject matrix = leds.createNestedObject("matrix");
matrix["w"] = Segment::maxWidth;
matrix["h"] = Segment::maxHeight;
}
#endif
uint8_t totalLC = 0;
JsonArray lcarr = leds.createNestedArray(F("seglc"));
size_t nSegs = strip.getSegmentsNum();
for (size_t s = 0; s < nSegs; s++) {
if (!strip.getSegment(s).isActive()) continue;
uint8_t lc = strip.getSegment(s).getLightCapabilities();
totalLC |= lc;
lcarr.add(lc);
}
leds["lc"] = totalLC;
leds[F("rgbw")] = strip.hasRGBWBus(); // deprecated, use info.leds.lc
leds[F("wv")] = totalLC & 0x02; // deprecated, true if white slider should be displayed for any segment
leds["cct"] = totalLC & 0x04; // deprecated, use info.leds.lc
#ifdef WLED_DEBUG
JsonArray i2c = root.createNestedArray(F("i2c"));
i2c.add(i2c_sda);
i2c.add(i2c_scl);
JsonArray spi = root.createNestedArray(F("spi"));
spi.add(spi_mosi);
spi.add(spi_sclk);
spi.add(spi_miso);
#endif
root[F("str")] = syncToggleReceive;
root[F("name")] = serverDescription;
root[F("udpport")] = udpPort;
root["live"] = (bool)realtimeMode;
root[F("liveseg")] = useMainSegmentOnly ? strip.getMainSegmentId() : -1; // if using main segment only for live
switch (realtimeMode) {
case REALTIME_MODE_INACTIVE: root["lm"] = ""; break;
case REALTIME_MODE_GENERIC: root["lm"] = ""; break;
case REALTIME_MODE_UDP: root["lm"] = F("UDP"); break;
case REALTIME_MODE_HYPERION: root["lm"] = F("Hyperion"); break;
case REALTIME_MODE_E131: root["lm"] = F("E1.31"); break;
case REALTIME_MODE_ADALIGHT: root["lm"] = F("USB Adalight/TPM2"); break;
case REALTIME_MODE_ARTNET: root["lm"] = F("Art-Net"); break;
case REALTIME_MODE_TPM2NET: root["lm"] = F("tpm2.net"); break;
case REALTIME_MODE_DDP: root["lm"] = F("DDP"); break;
}
if (realtimeIP[0] == 0)
{
root[F("lip")] = "";
} else {
root[F("lip")] = realtimeIP.toString();
}
#ifdef WLED_ENABLE_WEBSOCKETS
root[F("ws")] = ws.count();
#else
root[F("ws")] = -1;
#endif
root[F("fxcount")] = strip.getModeCount();
root[F("palcount")] = strip.getPaletteCount();
root[F("cpalcount")] = strip.customPalettes.size(); //number of custom palettes
JsonArray ledmaps = root.createNestedArray(F("maps"));
for (size_t i=0; i<WLED_MAX_LEDMAPS; i++) {
if ((ledMaps>>i) & 0x00000001U) {
JsonObject ledmaps0 = ledmaps.createNestedObject();
ledmaps0["id"] = i;
#ifndef ESP8266
if (i && ledmapNames[i-1]) ledmaps0["n"] = ledmapNames[i-1];
#endif
}
}
JsonObject wifi_info = root.createNestedObject("wifi");
wifi_info[F("bssid")] = WiFi.BSSIDstr();
int qrssi = WiFi.RSSI();
wifi_info[F("rssi")] = qrssi;
wifi_info[F("signal")] = getSignalQuality(qrssi);
wifi_info[F("channel")] = WiFi.channel();
JsonObject fs_info = root.createNestedObject("fs");
fs_info["u"] = fsBytesUsed / 1000;
fs_info["t"] = fsBytesTotal / 1000;
fs_info[F("pmt")] = presetsModifiedTime;
root[F("ndc")] = nodeListEnabled ? (int)Nodes.size() : -1;
#ifdef ARDUINO_ARCH_ESP32
#ifdef WLED_DEBUG
wifi_info[F("txPower")] = (int) WiFi.getTxPower();
wifi_info[F("sleep")] = (bool) WiFi.getSleep();
#endif
#if !defined(CONFIG_IDF_TARGET_ESP32C2) && !defined(CONFIG_IDF_TARGET_ESP32C3) && !defined(CONFIG_IDF_TARGET_ESP32S2) && !defined(CONFIG_IDF_TARGET_ESP32S3)
root[F("arch")] = "esp32";
#else
root[F("arch")] = ESP.getChipModel();
#endif
root[F("core")] = ESP.getSdkVersion();
//root[F("maxalloc")] = ESP.getMaxAllocHeap();
#ifdef WLED_DEBUG
root[F("resetReason0")] = (int)rtc_get_reset_reason(0);
root[F("resetReason1")] = (int)rtc_get_reset_reason(1);
#endif
root[F("lwip")] = 0; //deprecated
#else
root[F("arch")] = "esp8266";
root[F("core")] = ESP.getCoreVersion();
//root[F("maxalloc")] = ESP.getMaxFreeBlockSize();
#ifdef WLED_DEBUG
root[F("resetReason")] = (int)ESP.getResetInfoPtr()->reason;
#endif
root[F("lwip")] = LWIP_VERSION_MAJOR;
#endif
root[F("freeheap")] = ESP.getFreeHeap();
#if defined(ARDUINO_ARCH_ESP32) && defined(BOARD_HAS_PSRAM)
if (psramFound()) root[F("psram")] = ESP.getFreePsram();
#endif
root[F("uptime")] = millis()/1000 + rolloverMillis*4294967;
char time[32];
getTimeString(time);
root[F("time")] = time;
usermods.addToJsonInfo(root);
uint16_t os = 0;
#ifdef WLED_DEBUG
os = 0x80;
#ifdef WLED_DEBUG_HOST
os |= 0x0100;
if (!netDebugEnabled) os &= ~0x0080;
#endif
#endif
#ifndef WLED_DISABLE_ALEXA
os += 0x40;
#endif
//os += 0x20; // indicated now removed Blynk support, may be reused to indicate another build-time option
#ifdef USERMOD_CRONIXIE
os += 0x10;
#endif
#ifndef WLED_DISABLE_FILESYSTEM
os += 0x08;
#endif
#ifndef WLED_DISABLE_HUESYNC
os += 0x04;
#endif
#ifdef WLED_ENABLE_ADALIGHT
os += 0x02;
#endif
#ifndef WLED_DISABLE_OTA
os += 0x01;
#endif
root[F("opt")] = os;
root[F("brand")] = "WLED";
root[F("product")] = F("FOSS");
root["mac"] = escapedMac;
char s[16] = "";
if (Network.isConnected())
{
IPAddress localIP = Network.localIP();
sprintf(s, "%d.%d.%d.%d", localIP[0], localIP[1], localIP[2], localIP[3]);
}
root["ip"] = s;
}
void setPaletteColors(JsonArray json, CRGBPalette16 palette)
{
for (int i = 0; i < 16; i++) {
JsonArray colors = json.createNestedArray();
CRGB color = palette[i];
colors.add(i<<4);
colors.add(color.red);
colors.add(color.green);
colors.add(color.blue);
}
}
void setPaletteColors(JsonArray json, byte* tcp)
{
TRGBGradientPaletteEntryUnion* ent = (TRGBGradientPaletteEntryUnion*)(tcp);
TRGBGradientPaletteEntryUnion u;
// Count entries
uint16_t count = 0;
do {
u = *(ent + count);
count++;
} while ( u.index != 255);
u = *ent;
int indexstart = 0;
while( indexstart < 255) {
indexstart = u.index;
JsonArray colors = json.createNestedArray();
colors.add(u.index);
colors.add(u.r);
colors.add(u.g);
colors.add(u.b);
ent++;
u = *ent;
}
}
void serializePalettes(JsonObject root, int page)
{
byte tcp[72];
#ifdef ESP8266
int itemPerPage = 5;
#else
int itemPerPage = 8;
#endif
int palettesCount = strip.getPaletteCount();
int customPalettes = strip.customPalettes.size();
int maxPage = (palettesCount + customPalettes -1) / itemPerPage;
if (page > maxPage) page = maxPage;
int start = itemPerPage * page;
int end = start + itemPerPage;
if (end > palettesCount + customPalettes) end = palettesCount + customPalettes;
root[F("m")] = maxPage; // inform caller how many pages there are
JsonObject palettes = root.createNestedObject("p");
for (int i = start; i < end; i++) {
JsonArray curPalette = palettes.createNestedArray(String(i>=palettesCount ? 255 - i + palettesCount : i));
switch (i) {
case 0: //default palette
setPaletteColors(curPalette, PartyColors_p);
break;
case 1: //random
curPalette.add("r");
curPalette.add("r");
curPalette.add("r");
curPalette.add("r");
break;
case 2: //primary color only
curPalette.add("c1");
break;
case 3: //primary + secondary
curPalette.add("c1");
curPalette.add("c1");
curPalette.add("c2");
curPalette.add("c2");
break;
case 4: //primary + secondary + tertiary
curPalette.add("c3");
curPalette.add("c2");
curPalette.add("c1");
break;
case 5: //primary + secondary (+tert if not off), more distinct
curPalette.add("c1");
curPalette.add("c1");
curPalette.add("c1");
curPalette.add("c1");
curPalette.add("c1");
curPalette.add("c2");
curPalette.add("c2");
curPalette.add("c2");
curPalette.add("c2");
curPalette.add("c2");
curPalette.add("c3");
curPalette.add("c3");
curPalette.add("c3");
curPalette.add("c3");
curPalette.add("c3");
curPalette.add("c1");
break;
case 6: //Party colors
setPaletteColors(curPalette, PartyColors_p);
break;
case 7: //Cloud colors
setPaletteColors(curPalette, CloudColors_p);
break;
case 8: //Lava colors
setPaletteColors(curPalette, LavaColors_p);
break;
case 9: //Ocean colors
setPaletteColors(curPalette, OceanColors_p);
break;
case 10: //Forest colors
setPaletteColors(curPalette, ForestColors_p);
break;
case 11: //Rainbow colors
setPaletteColors(curPalette, RainbowColors_p);
break;
case 12: //Rainbow stripe colors
setPaletteColors(curPalette, RainbowStripeColors_p);
break;
default:
{
if (i>=palettesCount) {
setPaletteColors(curPalette, strip.customPalettes[i - palettesCount]);
} else {
memcpy_P(tcp, (byte*)pgm_read_dword(&(gGradientPalettes[i - 13])), 72);
setPaletteColors(curPalette, tcp);
}
}
break;
}
}
}
void serializeNetworks(JsonObject root)
{
JsonArray networks = root.createNestedArray(F("networks"));
int16_t status = WiFi.scanComplete();
switch (status) {
case WIFI_SCAN_FAILED:
WiFi.scanNetworks(true);
return;
case WIFI_SCAN_RUNNING:
return;
}
for (int i = 0; i < status; i++) {
JsonObject node = networks.createNestedObject();
node["ssid"] = WiFi.SSID(i);
node["rssi"] = WiFi.RSSI(i);
node["bssid"] = WiFi.BSSIDstr(i);
node["channel"] = WiFi.channel(i);
node["enc"] = WiFi.encryptionType(i);
}
WiFi.scanDelete();
if (WiFi.scanComplete() == WIFI_SCAN_FAILED) {
WiFi.scanNetworks(true);
}
}
void serializeNodes(JsonObject root)
{
JsonArray nodes = root.createNestedArray("nodes");
for (NodesMap::iterator it = Nodes.begin(); it != Nodes.end(); ++it)
{
if (it->second.ip[0] != 0)
{
JsonObject node = nodes.createNestedObject();
node[F("name")] = it->second.nodeName;
node["type"] = it->second.nodeType;
node["ip"] = it->second.ip.toString();
node[F("age")] = it->second.age;
node[F("vid")] = it->second.build;
}
}
}
// deserializes mode data string into JsonArray
void serializeModeData(JsonArray fxdata)
{
char lineBuffer[256];
for (size_t i = 0; i < strip.getModeCount(); i++) {
strncpy_P(lineBuffer, strip.getModeData(i), sizeof(lineBuffer)/sizeof(char)-1);
lineBuffer[sizeof(lineBuffer)/sizeof(char)-1] = '\0'; // terminate string
if (lineBuffer[0] != 0) {
char* dataPtr = strchr(lineBuffer,'@');
if (dataPtr) fxdata.add(dataPtr+1);
else fxdata.add("");
}
}
}
// deserializes mode names string into JsonArray
// also removes effect data extensions (@...) from deserialised names
void serializeModeNames(JsonArray arr)
{
char lineBuffer[256];
for (size_t i = 0; i < strip.getModeCount(); i++) {
strncpy_P(lineBuffer, strip.getModeData(i), sizeof(lineBuffer)/sizeof(char)-1);
lineBuffer[sizeof(lineBuffer)/sizeof(char)-1] = '\0'; // terminate string
if (lineBuffer[0] != 0) {
char* dataPtr = strchr(lineBuffer,'@');
if (dataPtr) *dataPtr = 0; // terminate mode data after name
arr.add(lineBuffer);
}
}
}
void serveJson(AsyncWebServerRequest* request)
{
byte subJson = 0;
const String& url = request->url();
if (url.indexOf("state") > 0) subJson = JSON_PATH_STATE;
else if (url.indexOf("info") > 0) subJson = JSON_PATH_INFO;
else if (url.indexOf("si") > 0) subJson = JSON_PATH_STATE_INFO;
else if (url.indexOf("nodes") > 0) subJson = JSON_PATH_NODES;
else if (url.indexOf("eff") > 0) subJson = JSON_PATH_EFFECTS;
else if (url.indexOf("palx") > 0) subJson = JSON_PATH_PALETTES;
else if (url.indexOf("fxda") > 0) subJson = JSON_PATH_FXDATA;
else if (url.indexOf("net") > 0) subJson = JSON_PATH_NETWORKS;
#ifdef WLED_ENABLE_JSONLIVE
else if (url.indexOf("live") > 0) {
serveLiveLeds(request);
return;
}
#endif
else if (url.indexOf("pal") > 0) {
request->send_P(200, "application/json", JSON_palette_names);
return;
}
else if (url.indexOf("cfg") > 0 && handleFileRead(request, "/cfg.json")) {
return;
}
else if (url.length() > 6) { //not just /json
request->send(501, "application/json", F("{\"error\":\"Not implemented\"}"));
return;
}
if (!requestJSONBufferLock(17)) {
request->send(503, "application/json", F("{\"error\":3}"));
return;
}
AsyncJsonResponse *response = new AsyncJsonResponse(&doc, subJson==JSON_PATH_FXDATA || subJson==JSON_PATH_EFFECTS); // will clear and convert JsonDocument into JsonArray if necessary
JsonVariant lDoc = response->getRoot();
switch (subJson)
{
case JSON_PATH_STATE:
serializeState(lDoc); break;
case JSON_PATH_INFO:
serializeInfo(lDoc); break;
case JSON_PATH_NODES:
serializeNodes(lDoc); break;
case JSON_PATH_PALETTES:
serializePalettes(lDoc, request->hasParam("page") ? request->getParam("page")->value().toInt() : 0); break;
case JSON_PATH_EFFECTS:
serializeModeNames(lDoc); break;
case JSON_PATH_FXDATA:
serializeModeData(lDoc); break;
case JSON_PATH_NETWORKS:
serializeNetworks(lDoc); break;
default: //all
JsonObject state = lDoc.createNestedObject("state");
serializeState(state);
JsonObject info = lDoc.createNestedObject("info");
serializeInfo(info);
if (subJson != JSON_PATH_STATE_INFO)
{
JsonArray effects = lDoc.createNestedArray(F("effects"));
serializeModeNames(effects); // remove WLED-SR extensions from effect names
lDoc[F("palettes")] = serialized((const __FlashStringHelper*)JSON_palette_names);
} else {
lastInterfaceUpdate = millis(); // softhack007 #3382 - delay re-sending of same JSON in updateInterfaces()
}
//lDoc["m"] = lDoc.memoryUsage(); // JSON buffer usage, for remote debugging
}
DEBUG_PRINTF("JSON buffer size: %u for request: %d\n", lDoc.memoryUsage(), subJson);
#ifdef WLED_DEBUG
size_t len =
#endif
response->setLength();
DEBUG_PRINT(F("JSON content length: ")); DEBUG_PRINTLN(len);
request->send(response);
releaseJSONBufferLock();
}
#ifdef WLED_ENABLE_JSONLIVE
#define MAX_LIVE_LEDS 180
bool serveLiveLeds(AsyncWebServerRequest* request, uint32_t wsClient)
{
#ifdef WLED_ENABLE_WEBSOCKETS
AsyncWebSocketClient * wsc = nullptr;
if (!request) { //not HTTP, use Websockets
wsc = ws.client(wsClient);
if (!wsc || wsc->queueLength() > 0) return false; //only send if queue free
}
#endif
uint16_t used = strip.getLengthTotal();
uint16_t n = (used -1) /MAX_LIVE_LEDS +1; //only serve every n'th LED if count over MAX_LIVE_LEDS
char buffer[2000];
strcpy_P(buffer, PSTR("{\"leds\":["));
obuf = buffer;
olen = 9;
for (size_t i= 0; i < used; i += n)
{
uint32_t c = strip.getPixelColor(i);
uint8_t r = R(c);
uint8_t g = G(c);
uint8_t b = B(c);
uint8_t w = W(c);
r = scale8(qadd8(w, r), strip.getBrightness()); //R, add white channel to RGB channels as a simple RGBW -> RGB map
g = scale8(qadd8(w, g), strip.getBrightness()); //G
b = scale8(qadd8(w, b), strip.getBrightness()); //B
olen += sprintf(obuf + olen, "\"%06X\",", RGBW32(r,g,b,0));
}
olen -= 1;
oappend((const char*)F("],\"n\":"));
oappendi(n);
oappend("}");
if (request) {
request->send(200, "application/json", buffer);
}
#ifdef WLED_ENABLE_WEBSOCKETS
else {
wsc->text(obuf, olen);
}
#endif
return true;
}
#endif
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