* module/web/uri.scm (validate-uri): Add reference? keyword argument,
for validating references.
(build-uri): Clarify comments to indicate that the result is an
absolute URI.
(build-uri-reference): New interface, to build URI-references.
(string->uri-reference): Rename from string->uri*. Fix fragment
parsing to not include the #.
(string->uri): Adapt to string->uri-reference name change.
* module/web/request.scm (request-absolute-uri): Add default-scheme
optional argument. Use it if the request-uri has no scheme, or
error.
* module/web/http.scm (write-uri): Reflow to use "when". Fix writing of
URI-reference instances.
(declare-uri-reference-header!): Rename from
declare-relative-uri-header!. Use string->uri-reference.
("Location"): Declare as a URI-reference header, as per RFC 7231.
* module/web/client.scm (open-socket-for-uri): Handle the case in which
there is no URI scheme.
* test-suite/tests/web-http.test:
* test-suite/tests/web-uri.test: Add tests.
* module/web/uri.scm (uri-encode): the hexadecimal percent-encoding %HH
is now uppercased as suggested by RFC3986:
"For consistency, URI producers and normalizers should use
uppercase hexadecimal digits for all percent-encodings."
* test-suite/tests/web-uri.test ("encode"): update tests.
* module/web/uri.scm (uri-encode): Change test to check for unreserved
chars instead of reserved chars.
* test-suite/tests/web-uri.test ("encode"): Add test.
* module/web/uri.scm (ipv6-regexp): IPv6 numeric addresses do not have
brackets. It's only in URIs that they have them.
(ipv6-host-pat, authority-regexp, parse-authority): Refactor ipv6
detection to fix a bug with |, and to extract IPv6 hosts from their
brackets. This way we can pass the uri-host directly to inet-pton.
(uri->string): If the host contains a `:', assume it is ipv6 and add
brackets.
* test-suite/tests/web-uri.test ("build-uri"): Adapt tests to assume
that the address returned by uri-host and passed to build-uri #:host
does not have brackets.
* module/web/uri.scm (valid-host?): Support dotted-quad notation
in IPv6 addresses.
(parse-authority): Support IPv6 literals.
* test-suite/tests/web-uri.test: Add and fix tests.
* module/web/uri.scm (valid-host?): Fix regexp to support
domain names starting with numbers.
* test-suite/tests/web-uri.scm: Add tests for above and
IP literals.
* module/web/uri.scm (parse-authority): Allow empty authorities, so that
we accept URIs of the form, file:///etc/hosts.
* test-suite/tests/web-uri.test ("string->uri"): Add tests.
* module/web/uri.scm (uri-error): New proc, throws to 'uri-error.
(validate-uri, uri-decode, uri-encode): Use uri-error.
* test-suite/tests/web-uri.test: Update for uri-error.
