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.
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 76377d9714)
Kalle reported that after commit 5c96d430c9,
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 d6116ca83a)
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 5c96d430c9)
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.
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.
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).
Change test/imgmap2.html so it can be used for testing this too.
Debian Iceweasel 3.0.4 does not appear to support such external
client-side image maps. Well, that's one place where ELinks is
superior, I guess. There might be a security problem though if ELinks
were to let scripts of the referring page examine the links in the
image map.
This simplifies the callers a little and may help implement
simultaneous support for different charsets on different terminals
of the same type (bug 1064).
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)
This reverts commit 7ceba1e461,
which is causing an assertion to fail if I open the same PDF
twice in a row, even if I cancel the dialog box when ELinks
first asks which program to run:
INTERNAL ERROR at /home/Kalle/src/elinks-0.12/src/session/download.c:980: assertion download && download->conn failed!
Forcing core dump! Man the Lifeboats! Women and children first!
But please DO NOT report this as a segfault!!! It is an internal error, not a
normal segfault, there is a huge difference in these for us the developers.
Also, noting the EXACT error you got above is crucial for hunting the problem
down. Thanks, and please get in touch with us.
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1216698688 (LWP 17877)]
0xb7a02d76 in raise () from /lib/libc.so.6
(gdb) backtrace 6
at /home/Kalle/src/elinks-0.12/src/util/error.c:179
fmt=0x816984c "assertion download && download->conn failed!")
at /home/Kalle/src/elinks-0.12/src/util/error.c:122
cached=0x8253ca8) at /home/Kalle/src/elinks-0.12/src/session/download.c:980
cached=0x8253ca8, frame=0)
at /home/Kalle/src/elinks-0.12/src/session/download.c:1339
at /home/Kalle/src/elinks-0.12/src/session/task.c:493
(More stack frames follow...)
There is a fix available but I don't trust it yet.
This reverts commit d0be89a16c, and thus
restores the ELinks 0.11 behaviour: always copy the data to a
temporary file before passing it to a MIME handler, even if the
"file:" URI scheme is being used. Previously, ELinks 0.12.GIT passed
the name of the original file directly to the handler. That was more
efficient but unfortunately gave the wrong result with local CGI.
The commit being reverted also claims to partially fix bug 238
(caching of local files). That bug is still open.
Currently, when ELinks passes the name of a local file to an external
MIME handler program, it encodes the name as a URI. Programs
typically do not expect this, and they then fail to open the file.
This patch makes ELinks instead quote the file name for the shell.
(The patch was attachment 425 of bug 991, by Witold Filipczyk.
This commit message was written by Kalle Olavi Niemitalo.)
start_document_refreshes() performs the NULL-pointer checks that
previously all callers to start_document_refresh() must perform
and then calls start_document_refresh().
