Most of this change is to boilerplate commentary such as license URLs.
This change was prompted by ftp://ftp.gnu.org's going-away party,
planned for November. Change these FTP URLs to https://ftp.gnu.org
instead. Make similar changes for URLs to other organizations moving
away from FTP. Also, change HTTP to HTTPS for URLs to gnu.org and
fsf.org when this works, as this will further help defend against
man-in-the-middle attacks (for this part I omitted the MS-DOS and
MS-Windows sources and the test tarballs to keep the workload down).
HTTPS is not fully working to lists.gnu.org so I left those URLs alone
for now.
* lisp/url/url.el, lisp/url/url-cache.el, lisp/url/url-dav.el,
lisp/url/url-expand.el, lisp/url/url-file.el, lisp/url/url-imap.el,
lisp/url/url-ldap.el: Use `url-p' instead of `vectorp'.
* lisp/url/url-http.el (url-http): Check for type `url' instead of
`vector'.
* test/lisp/url/url-parse-tests.el: Add tests covering url-generic-parse-url.
* test/lisp/url/url-expand-tests.el: Add tests covering url-expand-file-name.
* lisp/url/url-parse.el (url-generic-parse-url): Keep empty fragment
information in URL-struct.
* lisp/url/url-parse.el (url-path-and-query): Do not artificially turn empty
path and query into nil path and query, respectively.
* lisp/url/url-expand.el (url-expander-remove-relative-links): Do not turn
empty path into an absolute ("/") path.
* lisp/url/url-expand.el (url-expand-file-name): Properly resolve
fragment-only URIs. Do not just return them unchanged.
* lisp/url/url-expand.el (url-default-expander): An empty path in the relative
reference URI should not drop the last segment.
Backport:
(cherry picked from commit b792ecea17)
* url-expand.el (url-default-expander): Don't calculate a default
url port before checking url-type.
* url-http.el (url-http-end-of-document-sentinel): Bind relevant
url-request-* variables around the call to url-http.
Fixes: debbugs:11469 debbugs:12374
The previous changes would make redirection fail, since the expansion
would end up with URLs that looked like "http:www.bing.com/hello".
* url-expand.el (url-default-expander): Copy over the fullness of
the new URL object based on the definition URL object.