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Fix GH-14732: date_sun_info() fails for non-finite values #16497

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Fix GH-14732: date_sun_info() fails for non-finite values #16497

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@cmb69 cmb69 commented Oct 18, 2024

timelib_astro_rise_set_altitude() is not prepared to deal with non- finite values (nan, inf and -inf) for lon and lat; instead these trigger undefined behavior. Thus we catch non-finite values before even calling that timelib function; for date_sun_info() we trigger ValueErrors; for date_sunrise() and date_sunset() we silently return false, since these functions will be sunsetted anyway.

Note for merger:

Test expectations for PHP 8.4 and up 
date_sun_info(): Argument #2 ($latitude) must be finite
date_sun_info(): Argument #2 ($latitude) must be finite
date_sun_info(): Argument #3 ($longitude) must be finite
date_sun_info(): Argument #3 ($longitude) must be finite

Deprecated: Constant SUNFUNCS_RET_STRING is deprecated in %s on line %d

Deprecated: Function date_sunset() is deprecated since 8.1, use date_sun_info() instead in %s on line %d
bool(false)

Deprecated: Constant SUNFUNCS_RET_STRING is deprecated in %s on line %d

Deprecated: Function date_sunrise() is deprecated since 8.1, use date_sun_info() instead in %s on line %d
bool(false)

@cmb69
Fix phpGH-14732: date_sun_info() fails for non-finite values
b41732c 
`timelib_astro_rise_set_altitude()` is not prepared to deal with non-
finite values (`nan`, `inf` and `-inf`) for `lon` and `lat`; instead
these trigger undefined behavior.  Thus we catch non-finite values
before even calling that timelib function; for `date_sun_info()` we
trigger `ValueError`s; for `date_sunrise()` and `date_sunset()` we
silently return `false`, since these functions will be sunsetted
anyway.
@cmb69 cmb69 requested a review from derickr as a code owner October 18, 2024 16:01
@cmb69 cmb69 linked an issue Oct 18, 2024 that may be closed by this pull request
date_sun_info() fails for non-finite values #14732
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cmb69 commented Oct 25, 2024

If there are no objections, I'll merge this in a week.

@cmb69 cmb69 closed this in f9453a8 Nov 1, 2024
@cmb69 cmb69 deleted the cmb/gh14732 branch November 1, 2024 22:52
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date_sun_info() fails for non-finite values

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