Weak points:
- alignof
- js problems
Todo:
- make js work with C++ and mozjs-17
- then mozjs-24
- then mozjs-52
- then mozjs-60
- decrease number of warnings
Before this change, exec_later allocates memory for the struct exec_mailcap
structure using calloc. However, the memory is freed in
exec_mailcap_command using mem_free. Change exec_later to use mem_calloc
instead of calloc.
Unless CONFIG_FASTMEM is used, mem_free expects to find debugging metadata
that only the mem_alloc family of functions store, and thus using mem_free
on the memory allocated using calloc causes a crash.
Bring the code closer to ELinks 0.13.GIT commit
71ccbe0f8d 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 ff136e5116 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.
Except if they have external handlers.
When ELinks receives an event from a terminal, move that terminal to
the beginning of the global "terminals" list, so that the terminals
are always sorted according to the time of the most recent use. Note,
this affects the numbering of bookmark folders in session snapshots.
Add get_default_terminal(), which returns the most recently used
terminal that is still open. Use that in various places that
previously used terminals.prev or terminals.next. Four functions
fetch the size of the terminal for User-Agent headers, and
get_default_terminal() is not really right, but neither was the
original code; add TODO comments in those functions.
When the user chooses "Background and Notify", associate the download
with the terminal where the dialog box is. So any later messages will
then appear in that terminal, if it is still open. However, don't
change the terminal if the download has an external handler.
When a download gets some data, don't immediately check the associated
terminal. Instead, wait for the download to end. Then, if the
terminal of the download has been closed, use get_default_terminal()
instead. If there is no default terminal either, just skip any
message boxes.
ELinks attempted to display a message box on file_download.term, but
it had already closed that terminal and freed the struct terminal. To
fix this, reset file_download.term pointers to NULL when the terminal
is about to be destroyed. Also, assert in download_data_store() that
file_download.term is either NULL or in the global "terminals" list.
Reported by أحمد المحمودي.
(cherry picked from commit 6e2476ea4d)
Replace almost all uses of enum connection_state with struct
connection_status. This removes the assumption that errno values used
by the system are between 0 and 100000. The GNU Hurd uses values like
ENOENT = 0x40000002 and EMIG_SERVER_DIED = -308.
This commit is derived from my attachments 450 and 467 to bug 1013.
I am reverting all copiousoutput support because of bug 917.
This reverts commit f6115e65ec.
Conflicts:
src/session/download.h: type_query.cgi, and Doxygen comments.
I am reverting all copiousoutput support because of bug 917.
This reverts commit a2c12d7653.
Conflicts:
src/session/download.c: The int_min vs. int_max change had
already been obsoleted by using safe_strncpy instead,
in commit efcd6c9758 for bug 896 on 2007-07-24.
Also, TERM_EXEC_FG and TERM_EXEC_BG had been added.
I am reverting all copiousoutput support because of bug 917.
This reverts commit 6ead4e9c65.
Conflicts:
src/session/download.c: TERM_EXEC_FG and TERM_EXEC_BG had been
added after the original commit.
I am reverting all copiousoutput support because of bug 917.
This reverts commit 4dc4ea47f2.
Conflicts:
src/network/connection.h: After the original commit, the declaration
of copiousoutput_data had been changed to use the LIST_OF macro.
Also, connection.cgi had been added next to the connection.popen
member added by the original commit.
src/session/download.c: After the original commit, the definition of
copiousoutput_data had been changed to use the INIT_LIST_OF macro.
If the user opens the same file again after it is in the cache, then
ELinks does not always open a new connection, so download->conn can be
NULL in init_type_query(), and download->conn->cgi would crash.
Don't read that, then; instead add a new flag cache_entry.cgi, which
http_got_header() sets or clears as soon as possible after the cache
entry has been created.
(cherry picked from commit 81f8ee1fa2)
CGI scripts are distinguishable from normal files. I hope that this
fixes the bug 991. This commit also reverts the previous revert.
(cherry picked from commit 7ceba1e461)
Previously, init_type_query would check to make sure that it doesn't create a
duplicate type query and would return NULL if it otherwise would create a
duplicate. Then setup_download_handler would return 0 to do_move.
This patch changes setup_download_handler to return 1 to do_move in this
situation so that do_move stops trying to load the document.
This avoid a crash when loading twice the same file in the same tab when
loading the file opens a type query.
