HTTP SHA1 hash dynamic

Fetches HTTP page from url and alerts if it’s SHA1 hash different from value set in hash option.

hash is updated to current value

Option options (usually empty) can have values ‘ssl_noverify’ and ‘addr=a.b.c.d’. If ssl_noverify specified, check will be successful even if SSL certificate verification fails. If addr is specified, request will be to IPv4 address a.b.c.d.