In follow_url, do not call the follow-url hook if the URI encodes a POST
request. If scripts try to change such a URI, they can corrupt it and
cause problems later on.
This change can be reverted later when the URI structure is changed not
to store the POST data in the URI string.
Make set_kbd_repeat_count update the status bar and link highlighting
iff the repeat count is changed to a different value.
Delete code to do the same updates from do_action and try_prefix_key.
Besides simplifying the code, this change also fixes some issues with
the status bar and link highlighting not being properly updated in some
situations.
Introduce and use ses_kbd_repeat_count to change
ses->kbdprefix.repeat_count instead of setting it directly.
This change should not cause any change in behaviour.
Bring the code closer to ELinks 0.13.GIT commit
71ccbe0f8d42912311e46a04a3e234b8bc9a08cf made on 2007-11-07.
Don't define a separate download_flags_T typedef though,
because Doxygen generates nicer links if the enum is used directly.
If msg_box() runs out of memory, it returns NULL. In this case,
the done_handler_T callbacks of the buttons will not be called. So
lookup_unique_name() must instead free the struct lun_hop on its own.
Remove the stracpy(ofile) call that could never be executed.
This removes the need to handle errors from that call,
and makes it clear that lun_hop->file need not be separately freed
if an error occurs in lookup_unique_name().
I added this bug last night. continue_download_do() passed the
file descriptor to transform_codw_to_cmdw(), which saved it, but
continue_download_do() then closed it.
In common_download(), move session.download_uri to the new member
cmdw_hop.download_uri, which common_download_do() then reads. This
shields the download request against possible session.download_uri
changes made for other downloads. And transform_codw_to_cmdw() no
longer needs to touch session.download_uri at all, solving a FIXME.
Commit ff136e5116a750d7c6d8368d170d7a7f3d4920a4 on 2006-07-16 made
lun_resume() check if cdf_hop->data points to struct codw_hop,
and transform that to struct cmdw_hop if so. Move the transform
into a separate function called from continue_download_do().
This way, the structures used with create_download_file() no longer
need to begin with int magic.
To reproduce:
- Configure with --enable-debug.
- Go to http://elinks.cz/
- Set the cursor on the "About" link and press d to download,
- ELinks asks where to save the file. Cancel that with Esc.
This leaves session.download_uri != NULL.
- Go to /etc/passwd
- ELinks asks what to do with the file. Choose to download.
- ELinks asks where to save the file. Type the name of a new file
and press Enter.
- Again go to /etc/passwd
- ELinks asks what to do with the file. Choose to download.
- ELinks asks where to save the file. Type the same name as before
and press Enter.
- ELinks asks whether to resume or overwrite. Choose to resume.
This changes session.download_uri and leaks the original URI.
- Quit ELinks. It reports memory leaks:
0x88936d8:28 @ alloc'd at /home/Kalle/src/elinks-0.12/src/util/hash.c:89
0x88dac00:95 @ alloc'd at /home/Kalle/src/elinks-0.12/src/protocol/uri.c:1551
0x88c33a8:4104 @ alloc'd at /home/Kalle/src/elinks-0.12/src/util/hash.c:41
This commit fixes the leak, but it's still a bug that lun_resume() can
replace the session.download_uri that will be used by another pending
download. In particular, this might happen if the user first presses
d to download, and then while ELinks is asking for the file name, a
web script changes window.location to a different URI and that causes
ELinks to ask what to do with the file. So I'm leaving the FIXME
comment in for now.
If init_file_download() succeeds (returning non-NULL), it saves the
file descriptor to file_download->handle, whence abort_download() will
close it. However, if init_file_download() fails, the caller is
responsible of closing the file, something common_download_do() and
continue_download_do() failed to do. There was no problem with
bittorrent_download() because that uses -1 as the fd.
If init_file_download() succeeds (returning non-NULL), it saves the
file-name pointer to file_download->file, whence abort_download() will
free it. However, if init_file_download() fails, the caller is
responsible of freeing the name. bittorrent_download() already did so
but common_download_do() and continue_download_do() didn't.
Doxygen isn't too good at documenting the parameters of a callback
within the documentation of a parameter that points to the callback.
A typedef provides a better place to document the parameters.
If the user chose File -> Save formatted document and typed the name
of an existing file, ELinks offered to resume downloading the file.
There are a few problems with that:
* save_formatted_finish does not actually support resuming. It would
instead overwrite the beginning of the file and not truncate it.
* When save_formatted calls create_download_file, cdf_hop->data
ends up pointing to struct document. If the user then chooses to
resume, lun_resume would read *(int *)cdf_hop->data, hoping to
get cmdw_hop.magic or codw_hop.magic. struct document does not
begin with any such magic value.
* Because ELinks already has the formatted document in memory,
resuming saves neither time nor I/O.
So don't show the "Resume download of the original file" button in
this situation.
Yet another valiant wack at the beast. This one violates abstractions
a little less deeply, so maybe it will work better.
The last attempt caused a crash when a tab was cloned after the tab's
loading had been aborted.
(cherry picked from commit 76377d9714f2be22f84597173c9770e62513699a)
Kalle reported that after commit 5c96d430c98d7b67cf397aac83cfdfa1788aa6df,
ELinks would crash if the document in the old tab was still loading when a
new tab was opened. The problem was that the new session's download.data
pointer was not updated to point to the session as doc_loading_callback
expects.
Instead of just calling render_document_frames, set up the download and
call load_uri.
(cherry picked from commit d6116ca83ab683f07b1fa5aa4aa4e8e73bcfeabf)
In setup_session, use copy_location, add_to_history, and
render_document_frames instead of goto_uri and copy_vs to copy the base
tab's view state. By avoiding goto_uri, setup_session now bypasses MIME
checks, form post confirmations, malicious URL checks, and so on when
copying the base tab's current location and view state to the new tab,
so the new tab should get exactly what was loaded in the base tab.
This fixes bug 765: Opening a new tab can ask about the document of the
previous tab.
(cherry picked from commit 5c96d430c98d7b67cf397aac83cfdfa1788aa6df)
Conflicts:
src/session/session.c:
Both elinks-0.12 and master had the ses->doc_view->vs
= vs assignment, but only elinks-0.12 had vs->doc_view
= ses->doc_view as well. Also, struct connection_state
had been added after the original patch.
In the task.c line 517 there is:
if (is_in_progress_state((*download_p)->state)) {
if (have_location(ses))
*download_p = &cur_loc(ses)->download;
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Here the download was changed. download->data and download->callback
were NULL after the assignment, but later in loading_callback
only download->callback had new value. download->data was still NULL.
Yet another valiant wack at the beast. This one violates abstractions
a little less deeply, so maybe it will work better.
The last attempt caused a crash when a tab was cloned after the tab's
loading had been aborted.
Kalle reported that after commit 5c96d430c98d7b67cf397aac83cfdfa1788aa6df,
ELinks would crash if the document in the old tab was still loading when a
new tab was opened. The problem was that the new session's download.data
pointer was not updated to point to the session as doc_loading_callback
expects.
Instead of just calling render_document_frames, set up the download and
call load_uri.
At the end of the destroy_vs there two assignments vs->doc_view->vs = NULL and
vs->doc_view = NULL. In the setup_session the copy_vs left the vs "unbound"
with any variable. At least one of these two is wrong.
C99 6.7.4p3 and 6.7.4p6 set some constraints on what can be done in
inline functions and how they can be declared. In particular, any
function declared inline must also be defined in the same translation
unit. To comply with that, remove inline specifiers from function
declarations in header files when the functions are not also defined
in those header files.
Sun Studio 11 on Solaris 9 is stricter than C99 and does not allow
references to static identifiers in extern inline functions. Make the
configure script detect this and define NONSTATIC_INLINE accordingly
in config.h. Then use that in the definitions of all non-static
inline functions.
Document the restrictions and this scheme in doc/hacking.txt.
In src/session/task.c, if ses_goto() was going to ask the user to
confirm, it did:
task->session_task.target.frame = null_or_stracpy(target_frame);
It added the struct task to a memory_list, so the structure was freed
when the message box was closed. The target frame string was however
never freed. To fix this leak, add the target frame string to the
memory_list too.
Alternatively, this could have been fixed by making post_yes() and
post_no() free the string. It is however a bit better to use the
memory_list because msg_box() frees that even if it is unable to
display the message box.
These functions now expect or return strings in UTF-8:
delete_folder_by_name (sneak in a const, too), bookmark_terminal_tabs,
open_bookmark_folder, and get_auto_save_bookmark_foldername_utf8 (new
function).
