/*JSON{
"type" : "method",
"ifndef" : "SAVE_ON_FLASH",
"class" : "RegExp",
"name" : "exec",
"params" : [
["str","JsVar","A string to match on"]
],
"generate" : "jswrap_regexp_exec",
"return" : ["JsVar","A result array, or null"]
}
Test this regex on a string - returns a result array on success, or `null` otherwise.
`/Wo/.exec("Hello World")` will return:
```
[
"Wo",
"index": 6,
"input": "Hello World"
]
```
Or with groups `/W(o)rld/.exec("Hello World")` returns:
```
[
"World",
"o", "index": 6,
"input": "Hello World"
]
```
*/
JsVar *jswrap_regexp_exec(JsVar *parent, JsVar *arg) {
JsVar *str = jsvAsString(arg);
JsVarInt lastIndex = jsvGetIntegerAndUnLock(jsvObjectGetChild(parent, "lastIndex", 0));
JsVar *regex = jsvObjectGetChild(parent, "source", 0);
if (!jsvIsString(regex)) {
jsvUnLock2(str,regex);
return 0;
}
size_t regexLen = jsvGetStringLength(regex);
char *regexPtr = (char *)alloca(regexLen+1);
if (!regexPtr) {
jsvUnLock2(str,regex);
return 0;
}
jsvGetString(regex, regexPtr, regexLen+1);
jsvUnLock(regex);
JsVar *rmatch = match(regexPtr, str, (size_t)lastIndex, jswrap_regexp_hasFlag(parent,'i'));
jsvUnLock(str);
if (!rmatch) {
rmatch = jsvNewWithFlags(JSV_NULL);
lastIndex = 0;
} else {
// if it's global, set lastIndex
if (jswrap_regexp_hasFlag(parent,'g')) {
JsVar *matchStr = jsvGetArrayItem(rmatch,0);
lastIndex = jsvGetIntegerAndUnLock(jsvObjectGetChild(rmatch, "index", 0)) +
(JsVarInt)jsvGetStringLength(matchStr);
jsvUnLock(matchStr);
} else
lastIndex = 0;
}
jsvObjectSetChildAndUnLock(parent, "lastIndex", jsvNewFromInteger(lastIndex));
return rmatch;
}
/*JSON{
"type" : "function",
"name" : "clearTimeout",
"generate" : "jswrap_interface_clearTimeout",
"params" : [
["id","JsVar","The id returned by a previous call to setTimeout"]
]
}
Clear the Timeout that was created with setTimeout, for example:
```var id = setTimeout(function () { print('foo'); }, 1000);```
```clearTimeout(id);```
If no argument is supplied, all timers and intervals are stopped
*/
void _jswrap_interface_clearTimeoutOrInterval(JsVar *idVar, bool isTimeout) {
JsVar *timerArrayPtr = jsvLock(timerArray);
if (jsvIsUndefined(idVar)) {
/* Delete all timers EXCEPT those with a 'watch' field,
as those were generated by jsinteractive.c for debouncing watches */
JsvObjectIterator it;
jsvObjectIteratorNew(&it, timerArrayPtr);
while (jsvObjectIteratorHasValue(&it)) {
JsVar *timerPtr = jsvObjectIteratorGetValue(&it);
JsVar *watchPtr = jsvObjectGetChild(timerPtr, "watch", 0);
if (!watchPtr)
jsvObjectIteratorRemoveAndGotoNext(&it, timerArrayPtr);
else
jsvObjectIteratorNext(&it);
jsvUnLock2(watchPtr, timerPtr);
}
jsvObjectIteratorFree(&it);
} else {
JsVar *child = jsvIsBasic(idVar) ? jsvFindChildFromVar(timerArrayPtr, idVar, false) : 0;
if (child) {
JsVar *timerArrayPtr = jsvLock(timerArray);
jsvRemoveChild(timerArrayPtr, child);
jsvUnLock2(child, timerArrayPtr);
} else {
if (isTimeout)
jsExceptionHere(JSET_ERROR, "Unknown Timeout");
else
jsExceptionHere(JSET_ERROR, "Unknown Interval");
}
}
jsvUnLock(timerArrayPtr);
jsiTimersChanged(); // mark timers as changed
}
/*JSON{
"type" : "function",
"name" : "edit",
"generate" : "jswrap_interface_edit",
"params" : [
["funcName","JsVar","The name of the function to edit (either a string or just the unquoted name)"]
]
}
Fill the console with the contents of the given function, so you can edit it.
NOTE: This is a convenience function - it will not edit 'inner functions'. For that, you must edit the 'outer function' and re-execute it.
*/
void jswrap_interface_edit(JsVar *funcName) {
JsVar *func = 0;
if (jsvIsString(funcName)) {
funcName = jsvLockAgain(funcName);
func = jsvSkipNameAndUnLock(jsvFindChildFromVar(execInfo.root, funcName, 0));
} else {
func = funcName;
funcName = jsvGetPathTo(execInfo.root, func, 2, 0);
}
if (jsvIsString(funcName)) {
if (jsvIsFunction(func)) {
JsVar *scopeVar = jsvFindChildFromString(func, JSPARSE_FUNCTION_SCOPE_NAME, false);
JsVar *inRoot = jsvGetArrayIndexOf(execInfo.root, func, true);
bool normalDecl = scopeVar==0 && inRoot!=0;
jsvUnLock2(inRoot, scopeVar);
JsVar *newLine = jsvNewFromEmptyString();
if (newLine) { // could be out of memory
/* normalDecl:
*
* function foo() { ... }
*
* NOT normalDecl:
*
* foo.replaceWith(function() { ... });
*
*/
JsVar *funcData = jsvAsString(func, false);
if (normalDecl) {
jsvAppendString(newLine, "function ");
jsvAppendStringVarComplete(newLine, funcName);
jsvAppendStringVar(newLine, funcData, 9, JSVAPPENDSTRINGVAR_MAXLENGTH);
} else {
jsvAppendStringVarComplete(newLine, funcName);
jsvAppendString(newLine, ".replaceWith(");
jsvAppendStringVarComplete(newLine, funcData);
jsvAppendString(newLine, ");");
}
jsvUnLock(funcData);
jsiReplaceInputLine(newLine);
jsvUnLock(newLine);
}
} else {
jsExceptionHere(JSET_ERROR, "Edit should be called with the name of a function");
}
} else {
jsExceptionHere(JSET_ERROR, "Edit should be called with edit(funcName) or edit('funcName')");
}
jsvUnLock2(func, funcName);
}
/*JSON{
"type" : "method",
"class" : "Array",
"name" : "unshift",
"ifndef" : "SAVE_ON_FLASH",
"generate" : "jswrap_array_unshift",
"params" : [
["elements","JsVarArray","One or more items to add to the beginning of the array"]
],
"return" : ["int","The new array length"]
}
Add one or more items to the start of the array, and return its new length.
This is the opposite of `[1,2,3].push(4)`, which puts one or more elements on the end.
*/
JsVarInt jswrap_array_unshift(JsVar *parent, JsVar *elements) {
// just use splice, as this does all the hard work for us
JsVar *nRemove = jsvNewFromInteger(0);
jsvUnLock2(jswrap_array_splice(parent, 0, nRemove, elements), nRemove);
// return new length
return jsvGetLength(parent);
}
JsVar *clientRequestNew(SocketType socketType, JsVar *options, JsVar *callback) {
JsVar *arr = socketGetArray(HTTP_ARRAY_HTTP_CLIENT_CONNECTIONS,true);
if (!arr) return 0;
JsVar *req, *res = 0;
if ((socketType&ST_TYPE_MASK)==ST_HTTP) {
res = jspNewObject(0, "httpCRs");
if (!res) {
jsvUnLock(arr); // out of memory?
return 0;
}
req = jspNewObject(0, "httpCRq");
} else {
req = jspNewObject(0, "Socket");
}
if (req) { // out of memory?
socketSetType(req, socketType);
if (callback != NULL)
jsvUnLock(jsvAddNamedChild(req, callback, HTTP_NAME_ON_CONNECT));
jsvArrayPush(arr, req);
if (res)
jsvObjectSetChild(req, HTTP_NAME_RESPONSE_VAR, res);
jsvObjectSetChild(req, HTTP_NAME_OPTIONS_VAR, options);
}
jsvUnLock2(res, arr);
return req;
}
/*JSON{
"type" : "staticmethod",
"class" : "Object",
"name" : "getOwnPropertyDescriptor",
"generate" : "jswrap_object_getOwnPropertyDescriptor",
"params" : [
["obj","JsVar","The object"],
["name","JsVar","The name of the property"]
],
"return" : ["JsVar","An object with a description of the property. The values of writable/enumerable/configurable may not be entirely correct due to Espruino's implementation."]
}
Get information on the given property in the object, or undefined
*/
JsVar *jswrap_object_getOwnPropertyDescriptor(JsVar *parent, JsVar *name) {
if (!jswrap_object_hasOwnProperty(parent, name))
return 0;
JsVar *propName = jsvAsArrayIndex(name);
JsVar *varName = jspGetVarNamedField(parent, propName, true);
jsvUnLock(propName);
assert(varName); // we had it! (apparently)
if (!varName) return 0;
JsVar *obj = jsvNewObject();
if (!obj) {
jsvUnLock(varName);
return 0;
}
//jsvTrace(varName, 5);
JsVar *var = jsvSkipName(varName);
bool isBuiltIn = jsvIsNewChild(varName);
JsvIsInternalChecker checkerFunction = jsvGetInternalFunctionCheckerFor(parent);
jsvObjectSetChild(obj, "value", var);
jsvObjectSetChildAndUnLock(obj, "writable", jsvNewFromBool(true));
jsvObjectSetChildAndUnLock(obj, "enumerable", jsvNewFromBool(!checkerFunction || !checkerFunction(varName)));
jsvObjectSetChildAndUnLock(obj, "configurable", jsvNewFromBool(!isBuiltIn));
jsvUnLock2(var, varName);
return obj;
}
/*JSON{
"type" : "staticmethod",
"class" : "Promise",
"name" : "all",
"generate" : "jswrap_promise_all",
"params" : [
["promises","JsVar","An array of promises"]
],
"return" : ["JsVar","A new Promise"]
}
Return a new promise that is resolved when all promises in the supplied
array are resolved.
*/
JsVar *jswrap_promise_all(JsVar *arr) {
if (!jsvIsIterable(arr)) {
jsExceptionHere(JSET_TYPEERROR, "Expecting something iterable, got %t", arr);
return 0;
}
JsVar *promise = jspNewObject(0, "Promise");
if (!promise) return 0;
JsVar *resolve = jsvNewNativeFunction((void (*)(void))jswrap_promise_all_resolve, JSWAT_VOID|JSWAT_THIS_ARG|(JSWAT_JSVAR<<JSWAT_BITS));
JsVar *reject = jsvNewNativeFunction((void (*)(void))jswrap_promise_all_reject, JSWAT_VOID|JSWAT_THIS_ARG|(JSWAT_JSVAR<<JSWAT_BITS));
if (resolve && reject) {
jsvObjectSetChild(resolve, JSPARSE_FUNCTION_THIS_NAME, promise);
jsvObjectSetChild(reject, JSPARSE_FUNCTION_THIS_NAME, promise);
int promises = 0;
JsvObjectIterator it;
jsvObjectIteratorNew(&it, arr);
while (jsvObjectIteratorHasValue(&it)) {
JsVar *p = jsvObjectIteratorGetValue(&it);
jsvUnLock(jswrap_promise_then(p, resolve));
jsvUnLock(jswrap_promise_catch(p, reject));
jsvUnLock(p);
promises++;
jsvObjectIteratorNext(&it);
}
jsvObjectIteratorFree(&it);
jsvObjectSetChildAndUnLock(promise, JS_PROMISE_COUNT_NAME, jsvNewFromInteger(promises));
jsvObjectSetChildAndUnLock(promise, JS_PROMISE_RESULT_NAME, jsvNewEmptyArray());
}
jsvUnLock2(resolve, reject);
return promise;
}
/*JSON{
"type" : "constructor",
"class" : "Object",
"name" : "Object",
"generate" : "jswrap_object_constructor",
"params" : [
["value","JsVar","A single value to be converted to an object"]
],
"return" : ["JsVar","An Object"]
}
Creates an Object from the supplied argument
*/
JsVar *jswrap_object_constructor(JsVar *value) {
if (jsvIsObject(value) || jsvIsArray(value) || jsvIsFunction(value))
return jsvLockAgain(value);
const char *objName = jswGetBasicObjectName(value);
JsVar *funcName = objName ? jspGetNamedVariable(objName) : 0;
if (!funcName) return jsvNewObject();
JsVar *func = jsvSkipName(funcName);
JsVar *result = jspeFunctionCall(func, funcName, 0, false, 1, &value);
jsvUnLock2(funcName, func);
return result;
}
static void jswrap_waveform_start(JsVar *waveform, Pin pin, JsVarFloat freq, JsVar *options, bool isWriting) {
bool running = jsvGetBoolAndUnLock(jsvObjectGetChild(waveform, "running", 0));
if (running) {
jsExceptionHere(JSET_ERROR, "Waveform is already running");
return;
}
if (!jshIsPinValid(pin)) {
jsExceptionHere(JSET_ERROR, "Invalid pin");
return;
}
if (!isfinite(freq) || freq<0.001) {
jsExceptionHere(JSET_ERROR, "Frequency must be above 0.001Hz");
return;
}
JsSysTime startTime = jshGetSystemTime();
bool repeat = false;
if (jsvIsObject(options)) {
JsVarFloat t = jsvGetFloatAndUnLock(jsvObjectGetChild(options, "time", 0));
if (isfinite(t) && t>0)
startTime = jshGetTimeFromMilliseconds(t*1000);
repeat = jsvGetBoolAndUnLock(jsvObjectGetChild(options, "repeat", 0));
} else if (!jsvIsUndefined(options)) {
jsExceptionHere(JSET_ERROR, "Expecting options to be undefined or an Object, not %t", options);
}
bool is16Bit = false;
JsVar *buffer = jswrap_waveform_getBuffer(waveform,0, &is16Bit);
JsVar *buffer2 = jswrap_waveform_getBuffer(waveform,1,0);
UtilTimerEventType eventType;
if (is16Bit) {
eventType = isWriting ? UET_WRITE_SHORT : UET_READ_SHORT;
} else {
eventType = isWriting ? UET_WRITE_BYTE : UET_READ_BYTE;
}
// And finally set it up
if (!jstStartSignal(startTime, jshGetTimeFromMilliseconds(1000.0 / freq), pin, buffer, repeat?(buffer2?buffer2:buffer):0, eventType))
jsWarn("Unable to schedule a timer");
jsvUnLock2(buffer,buffer2);
jsvObjectSetChildAndUnLock(waveform, "running", jsvNewFromBool(true));
jsvObjectSetChildAndUnLock(waveform, "freq", jsvNewFromFloat(freq));
// Add to our list of active waveforms
JsVar *waveforms = jsvObjectGetChild(execInfo.hiddenRoot, JSI_WAVEFORM_NAME, JSV_ARRAY);
if (waveforms) {
jsvArrayPush(waveforms, waveform);
jsvUnLock(waveforms);
}
}
// Get the path associated with a device. Returns false on failure.
bool jshGetDevicePath(IOEventFlags device, char *buf, size_t bufSize) {
JsVar *obj = jshGetDeviceObject(device);
if (!obj) return false;
bool success = false;
JsVar *str = jsvObjectGetChild(obj, "path", 0);
if (jsvIsString(str)) {
jsvGetString(str, buf, bufSize);
success = true;
}
jsvUnLock2(str, obj);
return success;
}
/*JSON{
"type" : "method",
"class" : "Array",
"name" : "shift",
"ifndef" : "SAVE_ON_FLASH",
"generate" : "jswrap_array_shift",
"params" : [
],
"return" : ["JsVar","The element that was removed"]
}
Remove and return the first element of the array.
This is the opposite of `[1,2,3].pop()`, which takes an element off the end.
*/
JsVar *jswrap_array_shift(JsVar *parent) {
// just use splice, as this does all the hard work for us
JsVar *nRemove = jsvNewFromInteger(1);
JsVar *elements = jsvNewEmptyArray();
JsVar *arr = jswrap_array_splice(parent, 0, nRemove, elements);
jsvUnLock2(elements, nRemove);
// unpack element from the array
JsVar *el = 0;
if (jsvIsArray(arr))
el = jsvArrayPop(arr);
jsvUnLock(arr);
return el;
}
/*JSON{
"type" : "method",
"class" : "ReferenceError",
"name" : "toString",
"generate" : "jswrap_error_toString",
"return" : ["JsVar","A String"]
}*/
JsVar *jswrap_error_toString(JsVar *parent) {
JsVar *str = jsvObjectGetChild(parent, "type", 0);
if (!str) str = jsvNewFromString("Error");
if (!str) return 0;
JsVar *msg = jsvObjectGetChild(parent, "msg", 0);
if (msg) {
JsVar *newStr = jsvVarPrintf("%v: %v", str, msg);
jsvUnLock2(msg, str);
str = newStr;
}
return str;
}
/*JSON{
"type" : "method",
"class" : "Object",
"name" : "on",
"generate" : "jswrap_object_on",
"params" : [
["event","JsVar","The name of the event, for instance 'data'"],
["listener","JsVar","The listener to call when this event is received"]
]
}
Register an event listener for this object, for instance ```http.on('data', function(d) {...})```. See Node.js's EventEmitter.
*/
void jswrap_object_on(JsVar *parent, JsVar *event, JsVar *listener) {
if (!jsvHasChildren(parent)) {
jsWarn("Parent must be an object - not a String, Integer, etc.");
return;
}
if (!jsvIsString(event)) {
jsWarn("First argument to EventEmitter.on(..) must be a string");
return;
}
if (!jsvIsFunction(listener) && !jsvIsString(listener)) {
jsWarn("Second argument to EventEmitter.on(..) must be a function or a String (containing code)");
return;
}
JsVar *eventName = jsvVarPrintf(JS_EVENT_PREFIX"%s",event);
if (!eventName) return; // no memory
JsVar *eventList = jsvFindChildFromVar(parent, eventName, true);
jsvUnLock(eventName);
JsVar *eventListeners = jsvSkipName(eventList);
if (jsvIsUndefined(eventListeners)) {
// just add
jsvSetValueOfName(eventList, listener);
} else {
if (jsvIsArray(eventListeners)) {
// we already have an array, just add to it
jsvArrayPush(eventListeners, listener);
} else {
// not an array - we need to make it an array
JsVar *arr = jsvNewEmptyArray();
jsvArrayPush(arr, eventListeners);
jsvArrayPush(arr, listener);
jsvSetValueOfName(eventList, arr);
jsvUnLock(arr);
}
}
jsvUnLock2(eventListeners, eventList);
/* Special case if we're a data listener and data has already arrived then
* we queue an event immediately. */
if (jsvIsStringEqual(event, "data")) {
JsVar *buf = jsvObjectGetChild(parent, STREAM_BUFFER_NAME, 0);
if (jsvIsString(buf)) {
jsiQueueObjectCallbacks(parent, STREAM_CALLBACK_NAME, &buf, 1);
jsvRemoveNamedChild(parent, STREAM_BUFFER_NAME);
}
jsvUnLock(buf);
}
}
/*JSON{
"type" : "method",
"class" : "Object",
"name" : "on",
"generate" : "jswrap_object_on",
"params" : [
["event","JsVar","The name of the event, for instance 'data'"],
["listener","JsVar","The listener to call when this event is received"]
]
}
Register an event listener for this object, for instance ```http.on('data', function(d) {...})```. See Node.js's EventEmitter.
*/
void jswrap_object_on(JsVar *parent, JsVar *event, JsVar *listener) {
if (!jsvIsObject(parent)) {
jsWarn("Parent must be a proper object - not a String, Integer, etc.");
return;
}
if (!jsvIsString(event)) {
jsWarn("First argument to EventEmitter.on(..) must be a string");
return;
}
if (!jsvIsFunction(listener) && !jsvIsString(listener)) {
jsWarn("Second argument to EventEmitter.on(..) must be a function or a String (containing code)");
return;
}
char eventName[16];
if (!jswrap_object_get_event_name(eventName, event)) return;
JsVar *eventList = jsvFindChildFromString(parent, eventName, true);
JsVar *eventListeners = jsvSkipName(eventList);
if (jsvIsUndefined(eventListeners)) {
// just add
jsvSetValueOfName(eventList, listener);
} else {
if (jsvIsArray(eventListeners)) {
// we already have an array, just add to it
jsvArrayPush(eventListeners, listener);
} else {
// not an array - we need to make it an array
JsVar *arr = jsvNewWithFlags(JSV_ARRAY);
jsvArrayPush(arr, eventListeners);
jsvArrayPush(arr, listener);
jsvSetValueOfName(eventList, arr);
jsvUnLock(arr);
}
}
jsvUnLock2(eventListeners, eventList);
/* Special case if we're a data listener and data has already arrived then
* we queue an event immediately. */
if (jsvIsStringEqual(event, "data")) {
JsVar *buf = jsvObjectGetChild(parent, STREAM_BUFFER_NAME, 0);
if (jsvIsString(buf)) {
jsiQueueObjectCallbacks(parent, "#ondata", &buf, 1);
jsvRemoveNamedChild(parent, STREAM_BUFFER_NAME);
}
jsvUnLock(buf);
}
}
/*JSON{
"type" : "function",
"name" : "clearTimeout",
"generate" : "jswrap_interface_clearTimeout",
"params" : [
["id","JsVar","The id returned by a previous call to setTimeout"]
]
}
Clear the Timeout that was created with setTimeout, for example:
```var id = setTimeout(function () { print('foo'); }, 1000);```
```clearTimeout(id);```
If no argument is supplied, all timers and intervals are stopped
*/
void _jswrap_interface_clearTimeoutOrInterval(JsVar *idVar, bool isTimeout) {
JsVar *timerArrayPtr = jsvLock(timerArray);
if (jsvIsUndefined(idVar)) {
jsvRemoveAllChildren(timerArrayPtr);
} else {
JsVar *child = jsvIsBasic(idVar) ? jsvFindChildFromVar(timerArrayPtr, idVar, false) : 0;
if (child) {
JsVar *timerArrayPtr = jsvLock(timerArray);
jsvRemoveChild(timerArrayPtr, child);
jsvUnLock2(child, timerArrayPtr);
} else {
jsExceptionHere(JSET_ERROR, isTimeout ? "Unknown Timeout" : "Unknown Interval");
}
}
jsvUnLock(timerArrayPtr);
jsiTimersChanged(); // mark timers as changed
}
/*JSON{
"type" : "method",
"class" : "String",
"name" : "replace",
"generate" : "jswrap_string_replace",
"params" : [
["subStr","JsVar","The string to search for"],
["newSubStr","JsVar","The string to replace it with"]
],
"return" : ["JsVar","This string with `subStr` replaced"]
}
Search and replace ONE occurrance of `subStr` with `newSubStr` and return the result. This doesn't alter the original string. Regular expressions not supported.
*/
JsVar *jswrap_string_replace(JsVar *parent, JsVar *subStr, JsVar *newSubStr) {
JsVar *str = jsvAsString(parent, false);
subStr = jsvAsString(subStr, false);
newSubStr = jsvAsString(newSubStr, false);
int idx = jswrap_string_indexOf(parent, subStr, 0, false);
if (idx>=0) {
JsVar *newStr = jsvNewFromStringVar(str, 0, (size_t)idx);
jsvAppendStringVar(newStr, newSubStr, 0, JSVAPPENDSTRINGVAR_MAXLENGTH);
jsvAppendStringVar(newStr, str, (size_t)idx+jsvGetStringLength(subStr), JSVAPPENDSTRINGVAR_MAXLENGTH);
jsvUnLock(str);
str = newStr;
}
jsvUnLock2(subStr, newSubStr);
return str;
}
static bool jsfGetJSONForObjectItWithCallback(JsvObjectIterator *it, JSONFlags flags, const char *whitespace, JSONFlags nflags, vcbprintf_callback user_callback, void *user_data, bool first) {
bool needNewLine = false;
size_t sinceNewLine = 0;
while (jsvObjectIteratorHasValue(it) && !jspIsInterrupted()) {
JsVar *index = jsvObjectIteratorGetKey(it);
JsVar *item = jsvGetValueOfName(index);
bool hidden = jsvIsInternalObjectKey(index) ||
((flags & JSON_IGNORE_FUNCTIONS) && jsvIsFunction(item)) ||
((flags&JSON_NO_UNDEFINED) && jsvIsUndefined(item)) ||
jsvIsGetterOrSetter(item);
if (!hidden) {
sinceNewLine++;
if (!first) cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?", ":",");
bool newNeedsNewLine = (flags&JSON_SOME_NEWLINES) && jsonNeedsNewLine(item);
if ((flags&JSON_SOME_NEWLINES) && sinceNewLine>JSON_ITEMS_ON_LINE_OBJECT)
needNewLine = true;
if (flags&JSON_ALL_NEWLINES) {
needNewLine = true;
newNeedsNewLine = true;
}
if (needNewLine || newNeedsNewLine) {
jsonNewLine(nflags, whitespace, user_callback, user_data);
needNewLine = false;
sinceNewLine = 0;
}
bool addQuotes = true;
if (flags&JSON_DROP_QUOTES) {
if (jsvIsIntegerish(index)) addQuotes = false;
else if (jsvIsString(index) && jsvGetStringLength(index)<15) {
char buf[16];
jsvGetString(index,buf,sizeof(buf));
if (isIDString(buf)) addQuotes=false;
}
}
cbprintf(user_callback, user_data, addQuotes?"%q%s":"%v%s", index, (flags&JSON_PRETTY)?": ":":");
if (first)
first = false;
jsfGetJSONWithCallback(item, nflags, whitespace, user_callback, user_data);
needNewLine = newNeedsNewLine;
}
jsvUnLock2(index, item);
jsvObjectIteratorNext(it);
}
return needNewLine;
}
static void httpAppendHeaders(JsVar *string, JsVar *headerObject) {
// append headers
JsvObjectIterator it;
jsvObjectIteratorNew(&it, headerObject);
while (jsvObjectIteratorHasValue(&it)) {
JsVar *k = jsvAsString(jsvObjectIteratorGetKey(&it), true);
JsVar *v = jsvAsString(jsvObjectIteratorGetValue(&it), true);
jsvAppendStringVarComplete(string, k);
jsvAppendString(string, ": ");
jsvAppendStringVarComplete(string, v);
jsvAppendString(string, "\r\n");
jsvUnLock2(k, v);
jsvObjectIteratorNext(&it);
}
jsvObjectIteratorFree(&it);
// free headers
}
/*JSON{
"type" : "function",
"name" : "changeInterval",
"generate" : "jswrap_interface_changeInterval",
"params" : [
["id","JsVar","The id returned by a previous call to setInterval"],
["time","float","The new time period in ms"]
]
}
Change the Interval on a callback created with setInterval, for example:
```var id = setInterval(function () { print('foo'); }, 1000); // every second```
```changeInterval(id, 1500); // now runs every 1.5 seconds```
This takes effect the next time the callback is called (so it is not immediate).
*/
void jswrap_interface_changeInterval(JsVar *idVar, JsVarFloat interval) {
JsVar *timerArrayPtr = jsvLock(timerArray);
if (interval<TIMER_MIN_INTERVAL) interval=TIMER_MIN_INTERVAL;
JsVar *timerName = jsvIsBasic(idVar) ? jsvFindChildFromVar(timerArrayPtr, idVar, false) : 0;
if (timerName) {
JsVar *timer = jsvSkipNameAndUnLock(timerName);
JsVar *v;
JsVarInt intervalInt = (JsVarInt)jshGetTimeFromMilliseconds(interval);
v = jsvNewFromInteger(intervalInt);
jsvUnLock2(jsvSetNamedChild(timer, v, "interval"), v);
v = jsvNewFromInteger((JsVarInt)(jshGetSystemTime()-jsiLastIdleTime) + intervalInt);
jsvUnLock3(jsvSetNamedChild(timer, v, "time"), v, timer);
// timerName already unlocked
jsiTimersChanged(); // mark timers as changed
} else {
jsExceptionHere(JSET_ERROR, "Unknown Interval");
}
jsvUnLock(timerArrayPtr);
}
/*JSON{
"type" : "staticmethod",
"class" : "Object",
"name" : "defineProperty",
"generate" : "jswrap_object_defineProperty",
"params" : [
["obj","JsVar","An object"],
["name","JsVar","The name of the property"],
["desc","JsVar","The property descriptor"]
],
"return" : ["JsVar","The object, obj."]
}
Add a new property to the Object. 'Desc' is an object with the following fields:
* `configurable` (bool = false) - can this property be changed/deleted
* `enumerable` (bool = false) - can this property be enumerated
* `value` (anything) - the value of this property
* `writable` (bool = false) - can the value be changed with the assignment operator?
* `get` (function) - the getter function, or undefined if no getter
* `set` (function) - the setter function, or undefined if no setter
*
**Note:** `configurable`, `enumerable`, `writable`, `get`, and `set` are not implemented and will be ignored.
*/
JsVar *jswrap_object_defineProperty(JsVar *parent, JsVar *propName, JsVar *desc) {
if (!jsvIsObject(parent)) {
jsExceptionHere(JSET_ERROR, "First argument must be an object, got %t", parent);
return 0;
}
if (!jsvIsObject(desc)) {
jsExceptionHere(JSET_ERROR, "Property description must be an object, got %t", desc);
return 0;
}
JsVar *name = jsvAsArrayIndex(propName);
JsVar *value = jsvObjectGetChild(desc, "value", 0);
JsVar *property = jsvFindChildFromVar(parent, name, true);
jsvUnLock(name);
if (property && value)
jsvSetValueOfName(property, value);
jsvUnLock2(property, value);
return jsvLockAgain(parent);
}
/*JSON{
"type" : "staticmethod",
"class" : "http",
"name" : "get",
"generate" : "jswrap_http_get",
"params" : [
["options","JsVar","An object containing host,port,path,method fields"],
["callback","JsVar","A function(res) that will be called when a connection is made. You can then call `res.on('data', function(data) { ... })` and `res.on('close', function() { ... })` to deal with the response."]
],
"return" : ["JsVar","Returns a new httpCRq object"],
"return_object" : "httpCRq"
}
Create an HTTP Request - convenience function for ```http.request()```. `options.method` is set to 'get', and end is called automatically. See [the Internet page](/Internet) for more usage examples.
*/
JsVar *jswrap_http_get(JsVar *options, JsVar *callback) {
JsNetwork net;
if (!networkGetFromVarIfOnline(&net)) return 0;
if (jsvIsObject(options)) {
// if options is a string - it will be parsed, and GET will be set automatically
JsVar *method = jsvNewFromString("GET");
jsvUnLock2(jsvAddNamedChild(options, method, "method"), method);
}
JsVar *skippedCallback = jsvSkipName(callback);
if (!jsvIsUndefined(skippedCallback) && !jsvIsFunction(skippedCallback)) {
jsError("Expecting Callback Function but got %t", skippedCallback);
jsvUnLock(skippedCallback);
return 0;
}
jsvUnLock(skippedCallback);
JsVar *cliReq = jswrap_net_connect(options, callback, ST_HTTP);
if (cliReq) clientRequestEnd(&net, cliReq);
networkFree(&net);
return cliReq;
}
/**
* \brief Iterate over the contents of the content of a variable, calling callback for each.
* Contents may be:
* * numeric -> output
* * a string -> output each character
* * array/arraybuffer -> call itself on each element
* object -> call itself object.count times, on object.data
*/
bool jsvIterateCallback(
JsVar *data, // The data to iterate over.
void (*callback)(int item, void *callbackData), // The callback function invoke.
void *callbackData // Data to be passed to the callback function
) {
bool ok = true;
// Handle the data being a single numeric.
if (jsvIsNumeric(data)) {
callback((int)jsvGetInteger(data), callbackData);
}
// Handle the data being an object.
else if (jsvIsObject(data)) {
JsVar *countVar = jsvObjectGetChild(data, "count", 0);
JsVar *dataVar = jsvObjectGetChild(data, "data", 0);
if (countVar && dataVar && jsvIsNumeric(countVar)) {
int n = (int)jsvGetInteger(countVar);
while (ok && n-- > 0) {
ok = jsvIterateCallback(dataVar, callback, callbackData);
}
} else {
jsWarn("If specifying an object, it must be of the form {data : ..., count : N}");
}
jsvUnLock2(countVar, dataVar);
}
// Handle the data being a string
else if (jsvIsString(data)) {
JsvStringIterator it;
jsvStringIteratorNew(&it, data, 0);
while (jsvStringIteratorHasChar(&it) && ok) {
char ch = jsvStringIteratorGetChar(&it);
callback(ch, callbackData);
jsvStringIteratorNext(&it);
}
jsvStringIteratorFree(&it);
}
// Handle the data being an array buffer
else if (jsvIsArrayBuffer(data)) {
JsvArrayBufferIterator it;
jsvArrayBufferIteratorNew(&it, data, 0);
if (JSV_ARRAYBUFFER_GET_SIZE(it.type) == 1 && !JSV_ARRAYBUFFER_IS_SIGNED(it.type)) {
// faster for single byte arrays.
while (jsvArrayBufferIteratorHasElement(&it)) {
callback((int)(unsigned char)jsvStringIteratorGetChar(&it.it), callbackData);
jsvArrayBufferIteratorNext(&it);
}
} else {
while (jsvArrayBufferIteratorHasElement(&it)) {
callback((int)jsvArrayBufferIteratorGetIntegerValue(&it), callbackData);
jsvArrayBufferIteratorNext(&it);
}
}
jsvArrayBufferIteratorFree(&it);
}
// Handle the data being iterable
else if (jsvIsIterable(data)) {
JsvIterator it;
jsvIteratorNew(&it, data);
while (jsvIteratorHasElement(&it) && ok) {
JsVar *el = jsvIteratorGetValue(&it);
ok = jsvIterateCallback(el, callback, callbackData);
jsvUnLock(el);
jsvIteratorNext(&it);
}
jsvIteratorFree(&it);
} else {
jsWarn("Expecting a number or something iterable, got %t", data);
ok = false;
}
return ok;
}
/*JSON{
"type" : "method",
"class" : "Function",
"name" : "bind",
"generate" : "jswrap_function_bind",
"params" : [
["this","JsVar","The value to use as the 'this' argument when executing the function"],
["params","JsVarArray","Optional Default parameters that are prepended to the call"]
],
"return" : ["JsVar","The 'bound' function"]
}
This executes the function with the supplied 'this' argument and parameters
*/
JsVar *jswrap_function_bind(JsVar *parent, JsVar *thisArg, JsVar *argsArray) {
if (!jsvIsFunction(parent)) {
jsExceptionHere(JSET_TYPEERROR, "Function.bind expects to be called on function, got %t", parent);
return 0;
}
JsVar *fn;
if (jsvIsNativeFunction(parent))
fn = jsvNewNativeFunction(parent->varData.native.ptr, parent->varData.native.argTypes);
else
fn = jsvNewWithFlags(jsvIsFunctionReturn(parent) ? JSV_FUNCTION_RETURN : JSV_FUNCTION);
if (!fn) return 0;
// Old function info
JsvObjectIterator fnIt;
jsvObjectIteratorNew(&fnIt, parent);
// add previously bound arguments
while (jsvObjectIteratorHasValue(&fnIt)) {
JsVar *param = jsvObjectIteratorGetKey(&fnIt);
JsVar *defaultValue = jsvObjectIteratorGetValue(&fnIt);
bool wasBound = jsvIsFunctionParameter(param) && defaultValue;
if (wasBound) {
JsVar *newParam = jsvCopy(param);
if (newParam) { // could be out of memory
jsvAddName(fn, newParam);
jsvUnLock(newParam);
}
}
jsvUnLock2(param, defaultValue);
if (!wasBound) break;
jsvObjectIteratorNext(&fnIt);
}
// add bound arguments
JsvObjectIterator argIt;
jsvObjectIteratorNew(&argIt, argsArray);
while (jsvObjectIteratorHasValue(&argIt)) {
JsVar *defaultValue = jsvObjectIteratorGetValue(&argIt);
bool addedParam = false;
while (!addedParam && jsvObjectIteratorHasValue(&fnIt)) {
JsVar *param = jsvObjectIteratorGetKey(&fnIt);
if (!jsvIsFunctionParameter(param)) {
jsvUnLock(param);
break;
}
JsVar *newParam = jsvCopyNameOnly(param, false, true);
jsvSetValueOfName(newParam, defaultValue);
jsvAddName(fn, newParam);
addedParam = true;
jsvUnLock2(param, newParam);
jsvObjectIteratorNext(&fnIt);
}
if (!addedParam) {
JsVar *paramName = jsvNewFromEmptyString();
if (paramName) {
jsvMakeFunctionParameter(paramName); // force this to be called a function parameter
jsvSetValueOfName(paramName, defaultValue);
jsvAddName(fn, paramName);
jsvUnLock(paramName);
}
}
jsvUnLock(defaultValue);
jsvObjectIteratorNext(&argIt);
}
jsvObjectIteratorFree(&argIt);
// Copy the rest of the old function's info
while (jsvObjectIteratorHasValue(&fnIt)) {
JsVar *param = jsvObjectIteratorGetKey(&fnIt);
JsVar *newParam = jsvCopyNameOnly(param, true, true);
if (newParam) { // could be out of memory
jsvAddName(fn, newParam);
jsvUnLock(newParam);
}
jsvUnLock(param);
jsvObjectIteratorNext(&fnIt);
}
jsvObjectIteratorFree(&fnIt);
// Add 'this'
jsvObjectSetChild(fn, JSPARSE_FUNCTION_THIS_NAME, thisArg); // no unlock needed
return fn;
}
bool socketServerConnectionsIdle(JsNetwork *net) {
char *buf = alloca(net->chunkSize); // allocate on stack
JsVar *arr = socketGetArray(HTTP_ARRAY_HTTP_SERVER_CONNECTIONS,false);
if (!arr) return false;
bool hadSockets = false;
JsvObjectIterator it;
jsvObjectIteratorNew(&it, arr);
while (jsvObjectIteratorHasValue(&it)) {
hadSockets = true;
// Get connection, socket, and socket type
// For normal sockets, socket==connection, but for HTTP we split it into a request and a response
JsVar *connection = jsvObjectIteratorGetValue(&it);
SocketType socketType = socketGetType(connection);
JsVar *socket = ((socketType&ST_TYPE_MASK)==ST_HTTP) ? jsvObjectGetChild(connection,HTTP_NAME_RESPONSE_VAR,0) : jsvLockAgain(connection);
int sckt = (int)jsvGetIntegerAndUnLock(jsvObjectGetChild(connection,HTTP_NAME_SOCKET,0))-1; // so -1 if undefined
bool closeConnectionNow = jsvGetBoolAndUnLock(jsvObjectGetChild(connection, HTTP_NAME_CLOSENOW, false));
int error = 0;
if (!closeConnectionNow) {
int num = netRecv(net, sckt, buf, net->chunkSize);
if (num<0) {
// we probably disconnected so just get rid of this
closeConnectionNow = true;
error = num;
} else {
// add it to our request string
if (num>0) {
JsVar *receiveData = jsvObjectGetChild(connection,HTTP_NAME_RECEIVE_DATA,0);
JsVar *oldReceiveData = receiveData;
if (!receiveData) receiveData = jsvNewFromEmptyString();
if (receiveData) {
jsvAppendStringBuf(receiveData, buf, (size_t)num);
bool hadHeaders = jsvGetBoolAndUnLock(jsvObjectGetChild(connection,HTTP_NAME_HAD_HEADERS,0));
if (!hadHeaders && httpParseHeaders(&receiveData, connection, true)) {
hadHeaders = true;
jsvObjectSetChildAndUnLock(connection, HTTP_NAME_HAD_HEADERS, jsvNewFromBool(hadHeaders));
JsVar *server = jsvObjectGetChild(connection,HTTP_NAME_SERVER_VAR,0);
JsVar *args[2] = { connection, socket };
jsiQueueObjectCallbacks(server, HTTP_NAME_ON_CONNECT, args, ((socketType&ST_TYPE_MASK)==ST_HTTP) ? 2 : 1);
jsvUnLock(server);
}
if (hadHeaders && !jsvIsEmptyString(receiveData)) {
// Keep track of how much we received (so we can close once we have it)
if ((socketType&ST_TYPE_MASK)==ST_HTTP) {
jsvObjectSetChildAndUnLock(connection, HTTP_NAME_RECEIVE_COUNT,
jsvNewFromInteger(
jsvGetIntegerAndUnLock(jsvObjectGetChild(connection, HTTP_NAME_RECEIVE_COUNT, JSV_INTEGER)) +
jsvGetStringLength(receiveData)
));
}
// execute 'data' callback or save data
if (jswrap_stream_pushData(connection, receiveData, false)) {
// clear received data
jsvUnLock(receiveData);
receiveData = 0;
}
}
// if received data changed, update it
if (receiveData != oldReceiveData)
jsvObjectSetChild(connection,HTTP_NAME_RECEIVE_DATA,receiveData);
jsvUnLock(receiveData);
}
}
}
// send data if possible
JsVar *sendData = jsvObjectGetChild(socket,HTTP_NAME_SEND_DATA,0);
if (sendData && !jsvIsEmptyString(sendData)) {
int sent = socketSendData(net, socket, sckt, &sendData);
// FIXME? checking for errors is a bit iffy. With the esp8266 network that returns
// varied error codes we'd want to skip SOCKET_ERR_CLOSED and let the recv side deal
// with normal closing so we don't miss the tail of what's received, but other drivers
// return -1 (which is the same value) for all errors. So we rely on the check ~12 lines
// down if(num>0)closeConnectionNow=false instead.
if (sent < 0) {
closeConnectionNow = true;
error = sent;
}
jsvObjectSetChild(socket, HTTP_NAME_SEND_DATA, sendData); // socketSendData prob updated sendData
}
// only close if we want to close, have no data to send, and aren't receiving data
bool wantClose = jsvGetBoolAndUnLock(jsvObjectGetChild(socket,HTTP_NAME_CLOSE,0));
if (wantClose && (!sendData || jsvIsEmptyString(sendData)) && num<=0) {
bool reallyCloseNow = true;
if ((socketType&ST_TYPE_MASK)==ST_HTTP) {
// Check if we had a Content-Length header - if so, we need to wait until we have received that amount
JsVar *headers = jsvObjectGetChild(connection,"headers",0);
if (headers) {
JsVarInt contentLength = jsvGetIntegerAndUnLock(jsvObjectGetChild(headers,"Content-Length",0));
JsVarInt contentReceived = jsvGetIntegerAndUnLock(jsvObjectGetChild(connection, HTTP_NAME_RECEIVE_COUNT, 0));
if (contentLength > contentReceived) {
reallyCloseNow = false;
}
jsvUnLock(headers);
}
}
closeConnectionNow = reallyCloseNow;
} else if (num > 0)
closeConnectionNow = false; // guarantee that anything received is processed
jsvUnLock(sendData);
}
if (closeConnectionNow) {
// send out any data that we were POSTed
JsVar *receiveData = jsvObjectGetChild(connection,HTTP_NAME_RECEIVE_DATA,0);
bool hadHeaders = jsvGetBoolAndUnLock(jsvObjectGetChild(connection,HTTP_NAME_HAD_HEADERS,0));
if (hadHeaders && !jsvIsEmptyString(receiveData)) {
// execute 'data' callback or save data
jswrap_stream_pushData(connection, receiveData, true);
}
jsvUnLock(receiveData);
// fire error events
bool hadError = fireErrorEvent(error, connection, socket);
// fire the close listeners
JsVar *params[1] = { jsvNewFromBool(hadError) };
jsiQueueObjectCallbacks(connection, HTTP_NAME_ON_CLOSE, params, 1);
jsiQueueObjectCallbacks(socket, HTTP_NAME_ON_CLOSE, params, 1);
jsvUnLock(params[0]);
_socketConnectionKill(net, connection);
JsVar *connectionName = jsvObjectIteratorGetKey(&it);
jsvObjectIteratorNext(&it);
jsvRemoveChild(arr, connectionName);
jsvUnLock(connectionName);
} else
jsvObjectIteratorNext(&it);
jsvUnLock2(connection, socket);
}
jsvObjectIteratorFree(&it);
jsvUnLock(arr);
return hadSockets;
}
/** A convenience function for adding event listeners */
void jswrap_object_addEventListener(JsVar *parent, const char *eventName, void (*callback)(), JsnArgumentType argTypes) {
JsVar *n = jsvNewFromString(eventName);
JsVar *cb = jsvNewNativeFunction(callback, argTypes);
jswrap_object_on(parent, n, cb);
jsvUnLock2(cb, n);
}
bool socketIdle(JsNetwork *net) {
if (networkState != NETWORKSTATE_ONLINE) {
// clear all clients and servers
_socketCloseAllConnections(net);
return false;
}
bool hadSockets = false;
JsVar *arr = socketGetArray(HTTP_ARRAY_HTTP_SERVERS,false);
if (arr) {
JsvObjectIterator it;
jsvObjectIteratorNew(&it, arr);
while (jsvObjectIteratorHasValue(&it)) {
hadSockets = true;
JsVar *server = jsvObjectIteratorGetValue(&it);
int sckt = (int)jsvGetIntegerAndUnLock(jsvObjectGetChild(server,HTTP_NAME_SOCKET,0))-1; // so -1 if undefined
int theClient = netAccept(net, sckt);
if (theClient >= 0) {
SocketType socketType = socketGetType(server);
if ((socketType&ST_TYPE_MASK) == ST_HTTP) {
JsVar *req = jspNewObject(0, "httpSRq");
JsVar *res = jspNewObject(0, "httpSRs");
if (res && req) { // out of memory?
socketSetType(req, ST_HTTP);
JsVar *arr = socketGetArray(HTTP_ARRAY_HTTP_SERVER_CONNECTIONS, true);
if (arr) {
jsvArrayPush(arr, req);
jsvUnLock(arr);
}
jsvObjectSetChild(req, HTTP_NAME_RESPONSE_VAR, res);
jsvObjectSetChild(req, HTTP_NAME_SERVER_VAR, server);
jsvObjectSetChildAndUnLock(req, HTTP_NAME_SOCKET, jsvNewFromInteger(theClient+1));
}
jsvUnLock2(req, res);
} else {
// Normal sockets
JsVar *sock = jspNewObject(0, "Socket");
if (sock) { // out of memory?
socketSetType(sock, ST_NORMAL);
JsVar *arr = socketGetArray(HTTP_ARRAY_HTTP_CLIENT_CONNECTIONS, true);
if (arr) {
jsvArrayPush(arr, sock);
jsvUnLock(arr);
}
jsvObjectSetChildAndUnLock(sock, HTTP_NAME_SOCKET, jsvNewFromInteger(theClient+1));
jsiQueueObjectCallbacks(server, HTTP_NAME_ON_CONNECT, &sock, 1);
jsvUnLock(sock);
}
}
}
jsvUnLock(server);
jsvObjectIteratorNext(&it);
}
jsvObjectIteratorFree(&it);
jsvUnLock(arr);
}
if (socketServerConnectionsIdle(net)) hadSockets = true;
if (socketClientConnectionsIdle(net)) hadSockets = true;
netCheckError(net);
return hadSockets;
}
JsVar *jswrap_json_parse_internal() {
switch (lex->tk) {
case LEX_R_TRUE: jslGetNextToken(lex); return jsvNewFromBool(true);
case LEX_R_FALSE: jslGetNextToken(lex); return jsvNewFromBool(false);
case LEX_R_NULL: jslGetNextToken(lex); return jsvNewWithFlags(JSV_NULL);
case '-': {
jslGetNextToken(lex);
if (lex->tk!=LEX_INT && lex->tk!=LEX_FLOAT) return 0;
JsVar *v = jswrap_json_parse_internal(lex);
JsVar *zero = jsvNewFromInteger(0);
JsVar *r = jsvMathsOp(zero, v, '-');
jsvUnLock2(v, zero);
return r;
}
case LEX_INT: {
long long v = stringToInt(jslGetTokenValueAsString(lex));
jslGetNextToken(lex);
return jsvNewFromLongInteger(v);
}
case LEX_FLOAT: {
JsVarFloat v = stringToFloat(jslGetTokenValueAsString(lex));
jslGetNextToken(lex);
return jsvNewFromFloat(v);
}
case LEX_STR: {
JsVar *a = jslGetTokenValueAsVar(lex);
jslGetNextToken(lex);
return a;
}
case '[': {
JsVar *arr = jsvNewEmptyArray(); if (!arr) return 0;
jslGetNextToken(lex); // [
while (lex->tk != ']' && !jspHasError()) {
JsVar *value = jswrap_json_parse_internal(lex);
if (!value ||
(lex->tk!=']' && !jslMatch(','))) {
jsvUnLock2(value, arr);
return 0;
}
jsvArrayPush(arr, value);
jsvUnLock(value);
}
if (!jslMatch(']')) {
jsvUnLock(arr);
return 0;
}
return arr;
}
case '{': {
JsVar *obj = jsvNewObject(); if (!obj) return 0;
jslGetNextToken(lex); // {
while (lex->tk == LEX_STR && !jspHasError()) {
JsVar *key = jsvAsArrayIndexAndUnLock(jslGetTokenValueAsVar(lex));
jslGetNextToken(lex);
JsVar *value = 0;
if (!jslMatch(':') ||
!(value=jswrap_json_parse_internal(lex)) ||
(lex->tk!='}' && !jslMatch(','))) {
jsvUnLock3(key, value, obj);
return 0;
}
jsvAddName(obj, jsvMakeIntoVariableName(key, value));
jsvUnLock2(value, key);
}
if (!jslMatch('}')) {
jsvUnLock(obj);
return 0;
}
return obj;
}
default: {
char buf[32];
jslTokenAsString(lex->tk, buf, 32);
jsExceptionHere(JSET_SYNTAXERROR, "Expecting a valid value, got %s", buf);
return 0; // undefined = error
}
}
}
void jsfGetJSONWithCallback(JsVar *var, JSONFlags flags, const char *whitespace, vcbprintf_callback user_callback, void *user_data) {
JSONFlags nflags = flags + JSON_INDENT; // if we add a newline, make sure we indent any subsequent JSON more
if (!whitespace) whitespace=" ";
if (jsvIsUndefined(var)) {
cbprintf(user_callback, user_data, "undefined");
} else {
// Use IS_RECURSING flag to stop recursion
if (var->flags & JSV_IS_RECURSING) {
cbprintf(user_callback, user_data, " ... ");
return;
}
var->flags |= JSV_IS_RECURSING;
if (jsvIsArray(var)) {
JsVarInt length = jsvGetArrayLength(var);
bool limited = (flags&JSON_LIMIT) && (length>(JsVarInt)JSON_LIMIT_AMOUNT);
bool needNewLine = false;
cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?"[ ":"[");
JsVarInt lastIndex = -1;
bool numeric = true;
bool first = true;
JsvObjectIterator it;
jsvObjectIteratorNew(&it, var);
while (lastIndex+1<length && numeric && !jspIsInterrupted()) {
JsVar *key = jsvObjectIteratorGetKey(&it);
if (!jsvObjectIteratorHasValue(&it) || jsvIsNumeric(key)) {
JsVarInt index = jsvObjectIteratorHasValue(&it) ? jsvGetInteger(key) : length-1;
JsVar *item = jsvObjectIteratorGetValue(&it);
while (lastIndex < index) {
lastIndex++;
if (!limited || lastIndex<(JsVarInt)JSON_LIMITED_AMOUNT || lastIndex>=length-(JsVarInt)JSON_LIMITED_AMOUNT) {
if (!first) cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?", ":",");
first = false;
if (limited && lastIndex==length-(JsVarInt)JSON_LIMITED_AMOUNT) cbprintf(user_callback, user_data, JSON_LIMIT_TEXT);
bool newNeedsNewLine = ((flags&JSON_SOME_NEWLINES) && jsonNeedsNewLine(item));
if (flags&JSON_ALL_NEWLINES) {
needNewLine = true;
newNeedsNewLine = true;
}
if (needNewLine || newNeedsNewLine) {
jsonNewLine(nflags, whitespace, user_callback, user_data);
needNewLine = false;
}
if (lastIndex == index)
jsfGetJSONWithCallback(item, nflags, whitespace, user_callback, user_data);
else
cbprintf(user_callback, user_data, (flags&JSON_NO_UNDEFINED)?"null":"undefined");
needNewLine = newNeedsNewLine;
}
}
jsvUnLock(item);
jsvObjectIteratorNext(&it);
} else {
numeric = false;
}
jsvUnLock(key);
}
// non-numeric - but NOT for standard JSON
if ((flags&JSON_PRETTY))
jsfGetJSONForObjectItWithCallback(&it, flags, whitespace, nflags, user_callback, user_data, first);
jsvObjectIteratorFree(&it);
if (needNewLine) jsonNewLine(flags, whitespace, user_callback, user_data);
cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?" ]":"]");
} else if (jsvIsArrayBuffer(var)) {
JsvArrayBufferIterator it;
bool allZero = true;
jsvArrayBufferIteratorNew(&it, var, 0);
while (jsvArrayBufferIteratorHasElement(&it)) {
if (jsvArrayBufferIteratorGetFloatValue(&it)!=0)
allZero = false;
jsvArrayBufferIteratorNext(&it);
}
jsvArrayBufferIteratorFree(&it);
bool asArray = flags&JSON_ARRAYBUFFER_AS_ARRAY;
if (allZero && !asArray) {
cbprintf(user_callback, user_data, "new %s(%d)", jswGetBasicObjectName(var), jsvGetArrayBufferLength(var));
} else {
const char *aname = jswGetBasicObjectName(var);
/* You can't do `new ArrayBuffer([1,2,3])` so we have to output
* `new Uint8Array([1,2,3]).buffer`! */
bool isBasicArrayBuffer = strcmp(aname,"ArrayBuffer")==0;
if (isBasicArrayBuffer) {
aname="Uint8Array";
}
cbprintf(user_callback, user_data, asArray?"[":"new %s([", aname);
if (flags&JSON_ALL_NEWLINES) jsonNewLine(nflags, whitespace, user_callback, user_data);
size_t length = jsvGetArrayBufferLength(var);
bool limited = (flags&JSON_LIMIT) && (length>JSON_LIMIT_AMOUNT);
// no newlines needed for array buffers as they only contain simple stuff
jsvArrayBufferIteratorNew(&it, var, 0);
while (jsvArrayBufferIteratorHasElement(&it) && !jspIsInterrupted()) {
if (!limited || it.index<JSON_LIMITED_AMOUNT || it.index>=length-JSON_LIMITED_AMOUNT) {
if (it.index>0) cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?", ":",");
if (flags&JSON_ALL_NEWLINES) jsonNewLine(nflags, whitespace, user_callback, user_data);
if (limited && it.index==length-JSON_LIMITED_AMOUNT) cbprintf(user_callback, user_data, JSON_LIMIT_TEXT);
JsVar *item = jsvArrayBufferIteratorGetValue(&it);
jsfGetJSONWithCallback(item, nflags, whitespace, user_callback, user_data);
jsvUnLock(item);
}
jsvArrayBufferIteratorNext(&it);
}
if (flags&JSON_ALL_NEWLINES) jsonNewLine(flags, whitespace, user_callback, user_data);
jsvArrayBufferIteratorFree(&it);
cbprintf(user_callback, user_data, asArray?"]":"])");
if (isBasicArrayBuffer && !asArray) cbprintf(user_callback, user_data, ".buffer");
}
} else if (jsvIsObject(var)) {
IOEventFlags device = (flags & JSON_SHOW_DEVICES) ? jsiGetDeviceFromClass(var) : EV_NONE;
if (device!=EV_NONE) {
cbprintf(user_callback, user_data, "%s", jshGetDeviceString(device));
} else {
bool showContents = true;
if (flags & JSON_SHOW_OBJECT_NAMES) {
JsVar *proto = jsvObjectGetChild(var, JSPARSE_INHERITS_VAR, 0);
if (jsvHasChildren(proto)) {
JsVar *constr = jsvObjectGetChild(proto, JSPARSE_CONSTRUCTOR_VAR, 0);
if (constr) {
JsVar *p = jsvGetIndexOf(execInfo.root, constr, true);
if (p) cbprintf(user_callback, user_data, "%v: ", p);
jsvUnLock2(p,constr);
/* We had the constructor - now if there was a non-default toString function
* we'll execute it and print the result */
JsVar *toStringFn = jspGetNamedField(var, "toString", false);
if (toStringFn && toStringFn->varData.native.ptr != (void (*)(void))jswrap_object_toString) {
// Function found and it's not the default one - execute it
JsVar *result = jspExecuteFunction(toStringFn,var,0,0);
cbprintf(user_callback, user_data, "%v", result);
jsvUnLock(result);
showContents = false; // we already printed something
}
jsvUnLock(toStringFn);
}
}
jsvUnLock(proto);
}
if (showContents) {
JsvObjectIterator it;
jsvObjectIteratorNew(&it, var);
cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?"{ ":"{");
bool needNewLine = jsfGetJSONForObjectItWithCallback(&it, flags, whitespace, nflags, user_callback, user_data, true);
jsvObjectIteratorFree(&it);
if (needNewLine) jsonNewLine(flags, whitespace, user_callback, user_data);
cbprintf(user_callback, user_data, (flags&JSON_PRETTY)?" }":"}");
}
}
} else if (jsvIsFunction(var)) {
if (flags & JSON_IGNORE_FUNCTIONS) {
cbprintf(user_callback, user_data, "undefined");
} else {
cbprintf(user_callback, user_data, "function ");
jsfGetJSONForFunctionWithCallback(var, nflags, user_callback, user_data);
}
} else if (jsvIsString(var) && !jsvIsName(var)) {
if ((flags&JSON_LIMIT) && jsvGetStringLength(var)>JSON_LIMIT_STRING_AMOUNT) {
// if the string is too big, split it and put dots in the middle
JsVar *var1 = jsvNewFromStringVar(var, 0, JSON_LIMITED_STRING_AMOUNT);
JsVar *var2 = jsvNewFromStringVar(var, jsvGetStringLength(var)-JSON_LIMITED_STRING_AMOUNT, JSON_LIMITED_STRING_AMOUNT);
cbprintf(user_callback, user_data, "%q%s%q", var1, JSON_LIMIT_TEXT, var2);
jsvUnLock2(var1, var2);
} else {
cbprintf(user_callback, user_data, "%q", var);
}
} else {
cbprintf(user_callback, user_data, "%v", var);
}
var->flags &= ~JSV_IS_RECURSING;
}
}
void clientRequestWrite(JsNetwork *net, JsVar *httpClientReqVar, JsVar *data) {
SocketType socketType = socketGetType(httpClientReqVar);
// Append data to sendData
JsVar *sendData = jsvObjectGetChild(httpClientReqVar, HTTP_NAME_SEND_DATA, 0);
if (!sendData) {
JsVar *options = 0;
// Only append a header if we're doing HTTP AND we haven't already connected
if ((socketType&ST_TYPE_MASK) == ST_HTTP)
if (jsvGetIntegerAndUnLock(jsvObjectGetChild(httpClientReqVar, HTTP_NAME_SOCKET, 0))==0)
options = jsvObjectGetChild(httpClientReqVar, HTTP_NAME_OPTIONS_VAR, 0);
if (options) {
// We're an HTTP client - make a header
JsVar *method = jsvObjectGetChild(options, "method", 0);
JsVar *path = jsvObjectGetChild(options, "path", 0);
sendData = jsvVarPrintf("%v %v HTTP/1.0\r\nUser-Agent: Espruino "JS_VERSION"\r\nConnection: close\r\n", method, path);
jsvUnLock2(method, path);
JsVar *headers = jsvObjectGetChild(options, "headers", 0);
bool hasHostHeader = false;
if (jsvIsObject(headers)) {
JsVar *hostHeader = jsvObjectGetChild(headers, "Host", 0);
hasHostHeader = hostHeader!=0;
jsvUnLock(hostHeader);
httpAppendHeaders(sendData, headers);
// if Transfer-Encoding:chunked was set, subsequent writes need to 'chunk' the data that is sent
if (jsvIsStringEqualAndUnLock(jsvObjectGetChild(headers, "Transfer-Encoding", 0), "chunked")) {
jsvObjectSetChildAndUnLock(httpClientReqVar, HTTP_NAME_CHUNKED, jsvNewFromBool(true));
}
}
jsvUnLock(headers);
if (!hasHostHeader) {
JsVar *host = jsvObjectGetChild(options, "host", 0);
int port = (int)jsvGetIntegerAndUnLock(jsvObjectGetChild(options, "port", 0));
if (port>0 && port!=80)
jsvAppendPrintf(sendData, "Host: %v:%d\r\n", host, port);
else
jsvAppendPrintf(sendData, "Host: %v\r\n", host);
jsvUnLock(host);
}
// finally add ending newline
jsvAppendString(sendData, "\r\n");
} else { // !options
// We're not HTTP (or were already connected), so don't send any header
sendData = jsvNewFromString("");
}
jsvObjectSetChild(httpClientReqVar, HTTP_NAME_SEND_DATA, sendData);
jsvUnLock(options);
}
// We have data and aren't out of memory...
if (data && sendData) {
// append the data to what we want to send
JsVar *s = jsvAsString(data, false);
if (s) {
if ((socketType&ST_TYPE_MASK) == ST_HTTP &&
jsvGetBoolAndUnLock(jsvObjectGetChild(httpClientReqVar, HTTP_NAME_CHUNKED, 0))) {
// If we asked to send 'chunked' data, we need to wrap it up,
// prefixed with the length
jsvAppendPrintf(sendData, "%x\r\n%v\r\n", jsvGetStringLength(s), s);
} else {
jsvAppendStringVarComplete(sendData,s);
}
jsvUnLock(s);
}
}
jsvUnLock(sendData);
if ((socketType&ST_TYPE_MASK) == ST_HTTP) {
// on HTTP we connect after the first write
clientRequestConnect(net, httpClientReqVar);
}
}
/*JSON{
"type" : "staticmethod",
"class" : "url",
"name" : "parse",
"generate" : "jswrap_url_parse",
"params" : [
["urlStr","JsVar","A URL to be parsed"],
["parseQuery","bool","Whether to parse the query string into an object not (default = false)"]
],
"return" : ["JsVar","An object containing options for ```http.request``` or ```http.get```. Contains `method`, `host`, `path`, `pathname`, `search`, `port` and `query`"]
}
A utility function to split a URL into parts
This is useful in web servers for instance when handling a request.
For instance `url.parse("/a?b=c&d=e",true)` returns `{"method":"GET","host":"","path":"/a?b=c&d=e","pathname":"/a","search":"?b=c&d=e","port":80,"query":{"b":"c","d":"e"}}`
*/
JsVar *jswrap_url_parse(JsVar *url, bool parseQuery) {
if (!jsvIsString(url)) return 0;
JsVar *obj = jsvNewWithFlags(JSV_OBJECT);
if (!obj) return 0; // out of memory
// scan string to try and pick stuff out
JsvStringIterator it;
jsvStringIteratorNew(&it, url, 0);
int slashes = 0;
int colons = 0;
int addrStart = -1;
int portStart = -1;
int pathStart = -1;
int searchStart = -1;
int charIdx = 0;
int portNumber = 0;
while (jsvStringIteratorHasChar(&it)) {
char ch = jsvStringIteratorGetChar(&it);
if (ch == '/') {
slashes++;
if (pathStart<0) pathStart = charIdx;
if (colons==1 && slashes==2 && addrStart<0) {
addrStart = charIdx;
pathStart = -1;
searchStart = -1;
}
}
if (ch == ':') {
colons++;
if (addrStart>=0 && pathStart<0)
portStart = charIdx;
}
if (portStart>=0 && charIdx>portStart && pathStart<0 && ch >= '0' && ch <= '9') {
portNumber = portNumber*10 + (ch-'0');
}
if (ch == '?' && pathStart>=0) {
searchStart = charIdx;
}
jsvStringIteratorNext(&it);
charIdx++;
}
jsvStringIteratorFree(&it);
// try and sort stuff out
if (pathStart<0) pathStart = charIdx;
if (pathStart<0) pathStart = charIdx;
int addrEnd = (portStart>=0) ? portStart : pathStart;
// pull out details
if (addrStart>0)
jsvObjectSetChildAndUnLock(obj, "protocol", jsvNewFromStringVar(url, 0, (size_t)addrStart-1));
jsvObjectSetChildAndUnLock(obj, "method", jsvNewFromString("GET"));
jsvObjectSetChildAndUnLock(obj, "host", jsvNewFromStringVar(url, (size_t)(addrStart+1), (size_t)(addrEnd-(addrStart+1))));
JsVar *v;
v = jsvNewFromStringVar(url, (size_t)pathStart, JSVAPPENDSTRINGVAR_MAXLENGTH);
if (jsvGetStringLength(v)==0) jsvAppendString(v, "/");
jsvObjectSetChildAndUnLock(obj, "path", v);
v = jsvNewFromStringVar(url, (size_t)pathStart, (size_t)((searchStart>=0)?(searchStart-pathStart):JSVAPPENDSTRINGVAR_MAXLENGTH));
if (jsvGetStringLength(v)==0) jsvAppendString(v, "/");
jsvObjectSetChildAndUnLock(obj, "pathname", v);
jsvObjectSetChildAndUnLock(obj, "search", (searchStart>=0)?jsvNewFromStringVar(url, (size_t)searchStart, JSVAPPENDSTRINGVAR_MAXLENGTH):jsvNewNull());
jsvObjectSetChildAndUnLock(obj, "port", (portNumber<=0 || portNumber>65535) ? jsvNewWithFlags(JSV_NULL) : jsvNewFromInteger(portNumber));
JsVar *query = (searchStart>=0)?jsvNewFromStringVar(url, (size_t)(searchStart+1), JSVAPPENDSTRINGVAR_MAXLENGTH):jsvNewNull();
if (parseQuery && !jsvIsNull(query)) {
JsVar *queryStr = query;
jsvStringIteratorNew(&it, query, 0);
query = jsvNewWithFlags(JSV_OBJECT);
JsVar *key = jsvNewFromEmptyString();
JsVar *val = jsvNewFromEmptyString();
bool hadEquals = false;
while (jsvStringIteratorHasChar(&it)) {
char ch = jsvStringIteratorGetChar(&it);
if (ch=='&') {
if (jsvGetStringLength(key)>0 || jsvGetStringLength(val)>0) {
key = jsvAsArrayIndexAndUnLock(key); // make sure "0" gets made into 0
jsvMakeIntoVariableName(key, val);
jsvAddName(query, key);
jsvUnLock2(key, val);
key = jsvNewFromEmptyString();
val = jsvNewFromEmptyString();
hadEquals = false;
}
} else if (!hadEquals && ch=='=') {
hadEquals = true;
} else {
// decode percent escape chars
if (ch=='%') {
jsvStringIteratorNext(&it);
ch = jsvStringIteratorGetChar(&it);
jsvStringIteratorNext(&it);
ch = (char)((chtod(ch)<<4) | chtod(jsvStringIteratorGetChar(&it)));
}
if (hadEquals) jsvAppendCharacter(val, ch);
else jsvAppendCharacter(key, ch);
}
jsvStringIteratorNext(&it);
charIdx++;
}
jsvStringIteratorFree(&it);
jsvUnLock(queryStr);
if (jsvGetStringLength(key)>0 || jsvGetStringLength(val)>0) {
key = jsvAsArrayIndexAndUnLock(key); // make sure "0" gets made into 0
jsvMakeIntoVariableName(key, val);
jsvAddName(query, key);
}
jsvUnLock2(key, val);
}
jsvObjectSetChildAndUnLock(obj, "query", query);
return obj;
}
