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Explore: Fixes crash when parsing date math string with whitespace (#17446)

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Fixes: #16257
This commit is contained in:
kay delaney 2019-06-05 09:48:28 +01:00 committed by GitHub
parent a9da7b5f1f
commit 8a602e86f3
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 14 additions and 8 deletions
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5
packages/grafana-ui/src/utils/datemath.test.ts
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@ -129,5 +129,10 @@ describe('DateMath', () => {
const date = dateMath.parseDateMath('2', dateTime([2014, 1, 5]));
expect(date).toEqual(undefined);
});
it('should strip whitespace from string', () => {
const date = dateMath.parseDateMath(' - 2d', dateTime([2014, 1, 5]));
expect(date!.valueOf()).toEqual(dateTime([2014, 1, 3]).valueOf());
});
});
});

17
packages/grafana-ui/src/utils/datemath.ts
View File

@ -87,12 +87,13 @@ export function isValid(text: string | DateTime): boolean {
*/
// TODO: Had to revert Andrejs `time: moment.Moment` to `time: any`
export function parseDateMath(mathString: string, time: any, roundUp?: boolean): DateTime | undefined {
const strippedMathString = mathString.replace(/\s/g, '');
const dateTime = time;
let i = 0;
const len = mathString.length;
const len = strippedMathString.length;
while (i < len) {
const c = mathString.charAt(i++);
const c = strippedMathString.charAt(i++);
let type;
let num;
let unit;
@ -107,19 +108,19 @@ export function parseDateMath(mathString: string, time: any, roundUp?: boolean):
return undefined;
}
if (isNaN(parseInt(mathString.charAt(i), 10))) {
if (isNaN(parseInt(strippedMathString.charAt(i), 10))) {
num = 1;
} else if (mathString.length === 2) {
num = mathString.charAt(i);
} else if (strippedMathString.length === 2) {
num = strippedMathString.charAt(i);
} else {
const numFrom = i;
while (!isNaN(parseInt(mathString.charAt(i), 10))) {
while (!isNaN(parseInt(strippedMathString.charAt(i), 10))) {
i++;
if (i > 10) {
return undefined;
}
}
num = parseInt(mathString.substring(numFrom, i), 10);
num = parseInt(strippedMathString.substring(numFrom, i), 10);
}
if (type === 0) {
@ -128,7 +129,7 @@ export function parseDateMath(mathString: string, time: any, roundUp?: boolean):
return undefined;
}
}
unit = mathString.charAt(i++);
unit = strippedMathString.charAt(i++);
if (!includes(units, unit)) {
return undefined;