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fix(query): add to_iso8601 function timezone validation 

TD-16372
This commit is contained in:
Ganlin Zhao 2022-06-09 17:17:10 +08:00
parent 1946f39a96
commit 32591162b4
1 changed files with 47 additions and 0 deletions
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47
source/libs/function/src/builtins.c
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@ -1020,6 +1020,22 @@ static int32_t translateCast(SFunctionNode* pFunc, char* pErrBuf, int32_t len) {
*
*/
static bool validateHourRange(int8_t hour) {
if (hour < 0 || hour > 12) {
return false;
}
return true;
}
static bool validateMinuteRange(int8_t hour, int8_t minute) {
if (minute == 0 || (minute == 30 && (hour == 3 || hour == 5))) {
return true;
}
return false;
}
static bool validateTimezoneFormat(const SValueNode* pVal) {
if (TSDB_DATA_TYPE_BINARY != pVal->node.resType.type) {
return false;
@ -1028,6 +1044,8 @@ static bool validateTimezoneFormat(const SValueNode* pVal) {
char* tz = varDataVal(pVal->datum.p);
int32_t len = varDataLen(pVal->datum.p);
char buf[3] = {0};
int8_t hour = -1, minute = -1;
if (len == 0) {
return false;
} else if (len == 1 && (tz[0] == 'z' || tz[0] == 'Z')) {
@ -1040,6 +1058,20 @@ static bool validateTimezoneFormat(const SValueNode* pVal) {
if (!isdigit(tz[i])) {
return false;
}
if (i == 2) {
memcpy(buf, &tz[i - 1], 2);
hour = taosStr2Int8(buf, NULL, 10);
if (!validateHourRange(hour)) {
return false;
}
} else if (i == 4) {
memcpy(buf, &tz[i - 1], 2);
minute = taosStr2Int8(buf, NULL, 10);
if (!validateMinuteRange(hour, minute)) {
return false;
}
}
}
break;
}
@ -1051,9 +1083,24 @@ static bool validateTimezoneFormat(const SValueNode* pVal) {
}
continue;
}
if (!isdigit(tz[i])) {
return false;
}
if (i == 2) {
memcpy(buf, &tz[i - 1], 2);
hour = taosStr2Int8(buf, NULL, 10);
if (!validateHourRange(hour)) {
return false;
}
} else if (i == 5) {
memcpy(buf, &tz[i - 1], 2);
minute = taosStr2Int8(buf, NULL, 10);
if (!validateMinuteRange(hour, minute)) {
return false;
}
}
}
break;
}