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/*
* $LynxId: HTFWriter.c,v 1.93 2010/04/30 00:01:09 tom Exp $
*
* FILE WRITER HTFWrite.h
* ===========
*
* This version of the stream object just writes to a C file.
* The file is assumed open and left open.
*
* Bugs:
* strings written must be less than buffer size.
*/
#include <HTUtils.h>
#include <LYCurses.h>
#include <HTFWriter.h>
#include <HTSaveToFile.h>
#ifdef WIN_EX
#include <HTParse.h>
#endif
#include <HTFormat.h>
#include <UCDefs.h>
#include <HTAlert.h>
#include <HTFile.h>
#include <HTInit.h>
#include <HTPlain.h>
#include <LYStrings.h>
#include <LYUtils.h>
#include <LYGlobalDefs.h>
#include <LYClean.h>
#include <GridText.h>
#include <LYExtern.h>
#include <LYexit.h>
#include <LYLeaks.h>
#include <LYKeymap.h>
#include <LYGetFile.h>
#include <LYHistory.h> /* store statusline messages */
#ifdef USE_PERSISTENT_COOKIES
#include <LYCookie.h>
#endif
/* contains the name of the temp file which is being downloaded into */
char *WWW_Download_File = NULL;
BOOLEAN LYCancelDownload = FALSE; /* exported to HTFormat.c in libWWW */
#ifdef VMS
static char *FIXED_RECORD_COMMAND = NULL;
#ifdef USE_COMMAND_FILE /* Keep this as an option. - FM */
#define FIXED_RECORD_COMMAND_MASK "@Lynx_Dir:FIXED512 %s"
#else
#define FIXED_RECORD_COMMAND_MASK "%s"
static unsigned long LYVMS_FixedLengthRecords(char *filename);
#endif /* USE_COMMAND_FILE */
#endif /* VMS */
HTStream *HTSaveToFile(HTPresentation *pres,
HTParentAnchor *anchor,
HTStream *sink);
/* Stream Object
* -------------
*/
struct _HTStream {
const HTStreamClass *isa;
FILE *fp; /* The file we've opened */
char *end_command; /* What to do on _free. */
char *remove_command; /* What to do on _abort. */
char *viewer_command; /* Saved external viewer */
HTFormat input_format; /* Original pres->rep */
HTFormat output_format; /* Original pres->rep_out */
HTParentAnchor *anchor; /* Original stream's anchor. */
HTStream *sink; /* Original stream's sink. */
#ifdef FNAMES_8_3
BOOLEAN idash; /* remember position to become '.' */
#endif
};
/*_________________________________________________________________________
*
* A C T I O N R O U T I N E S
* Bug:
* Most errors are ignored.
*/
/* Error handling
* ------------------
*/
static void HTFWriter_error(HTStream *me, char *id)
{
char buf[200];
sprintf(buf, "%.60s: %.60s: %.60s",
id,
me->isa->name,
LYStrerror(errno));
HTAlert(buf);
/*
* Only disaster results from:
* me->isa->_abort(me, NULL);
*/
}
/* Character handling
* ------------------
*/
static void HTFWriter_put_character(HTStream *me, char c)
{
if (me->fp) {
putc(c, me->fp);
}
}
/* String handling
* ---------------
*/
static void HTFWriter_put_string(HTStream *me, const char *s)
{
if (me->fp) {
fputs(s, me->fp);
}
}
/* Buffer write. Buffers can (and should!) be big.
* ------------
*/
static void HTFWriter_write(HTStream *me, const char *s, int l)
{
size_t result;
if (me->fp) {
result = fwrite(s, 1, (unsigned) l, me->fp);
if (result != (size_t) l) {
HTFWriter_error(me, "HTFWriter_write");
}
}
}
/* Free an HTML object
* -------------------
*
* Note that the SGML parsing context is freed, but the created
* object is not,
* as it takes on an existence of its own unless explicitly freed.
*/
static void HTFWriter_free(HTStream *me)
{
int len;
char *path = NULL;
char *addr = NULL;
BOOL use_zread = NO;
BOOLEAN found = FALSE;
#ifdef WIN_EX
int status;
HANDLE cur_handle;
cur_handle = GetForegroundWindow();
#endif
if (me->fp)
fflush(me->fp);
if (me->end_command) { /* Temp file */
LYCloseTempFP(me->fp);
#ifdef VMS
if (0 == strcmp(me->end_command, "SaveVMSBinaryFile")) {
/*
* It's a binary file saved to disk on VMS, which
* we want to convert to fixed records format. - FM
*/
#ifdef USE_COMMAND_FILE
LYSystem(FIXED_RECORD_COMMAND);
#else
LYVMS_FixedLengthRecords(FIXED_RECORD_COMMAND);
#endif /* USE_COMMAND_FILE */
FREE(FIXED_RECORD_COMMAND);
if (me->remove_command) {
/* NEVER REMOVE THE FILE unless during an abort! */
FREE(me->remove_command);
}
} else
#endif /* VMS */
if (me->input_format == HTAtom_for("www/compressed")) {
/*
* It's a compressed file supposedly cached to
* a temporary file for uncompression. - FM
*/
if (me->anchor->FileCache != NULL) {
BOOL skip_loadfile = (BOOL) (me->viewer_command != NULL);
/*
* Save the path with the "gz" or "Z" suffix trimmed,
* and remove any previous uncompressed copy. - FM
*/
StrAllocCopy(path, me->anchor->FileCache);
if ((len = (int) strlen(path)) > 3 &&
(!strcasecomp(&path[len - 2], "gz") ||
!strcasecomp(&path[len - 2], "zz"))) {
#ifdef USE_ZLIB
if (!skip_loadfile) {
use_zread = YES;
} else
#endif /* USE_ZLIB */
{
path[len - 3] = '\0';
remove(path);
}
} else if (len > 4 && !strcasecomp(&path[len - 3], "bz2")) {
#ifdef USE_BZLIB
if (!skip_loadfile) {
use_zread = YES;
} else
#endif /* USE_BZLIB */
{
path[len - 4] = '\0';
remove(path);
}
} else if (len > 2 && !strcasecomp(&path[len - 1], "Z")) {
path[len - 2] = '\0';
remove(path);
}
if (!use_zread) {
if (!dump_output_immediately) {
/*
* Tell user what's happening. - FM
*/
_HTProgress(me->end_command);
}
/*
* Uncompress it. - FM
*/
if (me->end_command && me->end_command[0])
LYSystem(me->end_command);
found = LYCanReadFile(me->anchor->FileCache);
}
if (found) {
/*
* It's still there with the "gz" or "Z" suffix,
* so the uncompression failed. - FM
*/
if (!dump_output_immediately) {
lynx_force_repaint();
LYrefresh();
}
HTAlert(ERROR_UNCOMPRESSING_TEMP);
LYRemoveTemp(me->anchor->FileCache);
FREE(me->anchor->FileCache);
} else {
/*
* Succeeded! Create a complete address
* for the uncompressed file and invoke
* HTLoadFile() to handle it. - FM
*/
#ifdef FNAMES_8_3
/*
* Assuming we have just uncompressed e.g.
* FILE-mpeg.gz -> FILE-mpeg, restore/shorten
* the name to be fit for passing to an external
* viewer, by renaming FILE-mpeg -> FILE.mpe - kw
*/
if (skip_loadfile) {
char *new_path = NULL;
char *the_dash = me->idash ? strrchr(path, '-') : 0;
if (the_dash != 0) {
unsigned off = (the_dash - path);
StrAllocCopy(new_path, path);
new_path[off] = '.';
if (strlen(new_path + off) > 4)
new_path[off + 4] = '\0';
if (rename(path, new_path) == 0) {
FREE(path);
path = new_path;
} else {
FREE(new_path);
}
}
}
#endif /* FNAMES_8_3 */
LYLocalFileToURL(&addr, path);
if (!use_zread) {
LYRenamedTemp(me->anchor->FileCache, path);
StrAllocCopy(me->anchor->FileCache, path);
StrAllocCopy(me->anchor->content_encoding, "binary");
}
FREE(path);
if (!skip_loadfile) {
/*
* Lock the chartrans info we may possibly have,
* so HTCharsetFormat() will not apply the default
* for local files. - KW
*/
if (HTAnchor_getUCLYhndl(me->anchor,
UCT_STAGE_PARSER) < 0) {
/*
* If not yet set - KW
*/
HTAnchor_copyUCInfoStage(me->anchor,
UCT_STAGE_PARSER,
UCT_STAGE_MIME,
UCT_SETBY_DEFAULT + 1);
}
HTAnchor_copyUCInfoStage(me->anchor,
UCT_STAGE_PARSER,
UCT_STAGE_MIME, -1);
}
/*
* Create a complete address for
* the uncompressed file. - FM
*/
if (!dump_output_immediately) {
/*
* Tell user what's happening. - FM
* HTInfoMsg2(WWW_USING_MESSAGE, addr);
* but only in the history, not on screen -RS
*/
LYstore_message2(WWW_USING_MESSAGE, addr);
}
if (skip_loadfile) {
/*
* It's a temporary file we're passing to a viewer or
* helper application. Loading the temp file through
* HTLoadFile() would result in yet another HTStream
* (created with HTSaveAndExecute()) which would just
* copy the temp file to another temp file (or even the
* same!). We can skip this needless duplication by
* using the viewer_command which has already been
* determined when the HTCompressed stream was created.
* - kw
*/
FREE(me->end_command);
HTAddParam(&(me->end_command), me->viewer_command, 1, me->anchor->FileCache);
HTEndParam(&(me->end_command), me->viewer_command, 1);
if (!dump_output_immediately) {
/*
* Tell user what's happening. - FM
*/
HTProgress(me->end_command);
#ifndef WIN_EX
stop_curses();
#endif
}
#ifdef _WIN_CC
exec_command(me->end_command, FALSE);
#else
LYSystem(me->end_command);
#endif
if (me->remove_command) {
/* NEVER REMOVE THE FILE unless during an abort!!! */
FREE(me->remove_command);
}
if (!dump_output_immediately) {
#ifdef WIN_EX
if (focus_window) {
HTInfoMsg(gettext("Set focus1"));
status = SetForegroundWindow(cur_handle);
}
#else
start_curses();
#endif
}
} else {
(void) HTLoadFile(addr,
me->anchor,
me->output_format,
me->sink);
}
if (dump_output_immediately &&
me->output_format == HTAtom_for("www/present")) {
FREE(addr);
remove(me->anchor->FileCache);
FREE(me->anchor->FileCache);
FREE(me->remove_command);
FREE(me->end_command);
FREE(me->viewer_command);
FREE(me);
return;
}
}
FREE(addr);
}
if (me->remove_command) {
/* NEVER REMOVE THE FILE unless during an abort!!! */
FREE(me->remove_command);
}
} else if (strcmp(me->end_command, "SaveToFile")) {
/*
* It's a temporary file we're passing to a viewer or helper
* application. - FM
*/
if (!dump_output_immediately) {
/*
* Tell user what's happening. - FM
*/
_HTProgress(me->end_command);
#ifndef WIN_EX
stop_curses();
#endif
}
#ifdef _WIN_CC
exec_command(me->end_command, FALSE);
#else
LYSystem(me->end_command);
#endif
if (me->remove_command) {
/* NEVER REMOVE THE FILE unless during an abort!!! */
FREE(me->remove_command);
}
if (!dump_output_immediately) {
#ifdef WIN_EX
if (focus_window) {
HTInfoMsg(gettext("Set focus2"));
status = SetForegroundWindow(cur_handle);
}
#else
start_curses();
#endif
}
} else {
/*
* It's a file we saved to disk for handling via a menu. - FM
*/
if (me->remove_command) {
/* NEVER REMOVE THE FILE unless during an abort!!! */
FREE(me->remove_command);
}
if (!dump_output_immediately) {
#ifdef WIN_EX
if (focus_window) {
HTInfoMsg(gettext("Set focus3"));
status = SetForegroundWindow(cur_handle);
}
#else
start_curses();
#endif
}
}
FREE(me->end_command);
}
FREE(me->viewer_command);
if (dump_output_immediately) {
if (me->anchor->FileCache)
remove(me->anchor->FileCache);
FREE(me);
#ifdef USE_PERSISTENT_COOKIES
/*
* We want to save cookies picked up when in source mode. ...
*/
if (persistent_cookies)
LYStoreCookies(LYCookieSaveFile);
#endif /* USE_PERSISTENT_COOKIES */
exit_immediately(EXIT_SUCCESS);
}
FREE(me);
return;
}
#ifdef VMS
# define REMOVE_COMMAND "delete/noconfirm/nolog %s;"
#else
# define REMOVE_COMMAND "%s"
#endif /* VMS */
/* Abort writing
* -------------
*/
static void HTFWriter_abort(HTStream *me, HTError e GCC_UNUSED)
{
CTRACE((tfp, "HTFWriter_abort called\n"));
LYCloseTempFP(me->fp);
FREE(me->viewer_command);
if (me->end_command) { /* Temp file */
CTRACE((tfp, "HTFWriter: Aborting: file not executed or saved.\n"));
FREE(me->end_command);
if (me->remove_command) {
#ifdef VMS
LYSystem(me->remove_command);
#else
chmod(me->remove_command, 0600); /* Ignore errors */
if (0 != unlink(me->remove_command)) {
char buf[560];
sprintf(buf, "%.60s '%.400s': %.60s",
gettext("Error deleting file"),
me->remove_command, LYStrerror(errno));
HTAlert(buf);
}
#endif
FREE(me->remove_command);
}
}
FREE(WWW_Download_File);
FREE(me);
}
/* Structured Object Class
* -----------------------
*/
static const HTStreamClass HTFWriter = /* As opposed to print etc */
{
"FileWriter",
HTFWriter_free,
HTFWriter_abort,
HTFWriter_put_character,
HTFWriter_put_string,
HTFWriter_write
};
/* Subclass-specific Methods
* -------------------------
*/
HTStream *HTFWriter_new(FILE *fp)
{
HTStream *me;
if (!fp)
return NULL;
me = typecalloc(HTStream);
if (me == NULL)
outofmem(__FILE__, "HTFWriter_new");
assert(me != NULL);
me->isa = &HTFWriter;
me->fp = fp;
me->end_command = NULL;
me->remove_command = NULL;
me->anchor = NULL;
me->sink = NULL;
return me;
}
/* Make system command from template
* ---------------------------------
*
* See mailcap spec for description of template.
*/
static char *mailcap_substitute(HTParentAnchor *anchor,
HTPresentation *pres,
char *fnam)
{
char *result = LYMakeMailcapCommand(pres->command,
anchor->content_type_params,
fnam);
#if defined(UNIX)
/* if we don't have a "%s" token, expect to provide the file via stdin */
if (!LYMailcapUsesPctS(pres->command)) {
char *prepend = 0;
const char *format = "( %s ) < %s";
HTSprintf(&prepend, "( %s", result); /* ...avoid quoting */
HTAddParam(&prepend, format, 2, fnam); /* ...to quote if needed */
FREE(result);
result = prepend;
}
#endif
return result;
}
/* Take action using a system command
* ----------------------------------
*
* originally from Ghostview handling by Marc Andreseen.
* Creates temporary file, writes to it, executes system command
* on end-document. The suffix of the temp file can be given
* in case the application is fussy, or so that a generic opener can
* be used.
*/
HTStream *HTSaveAndExecute(HTPresentation *pres,
HTParentAnchor *anchor,
HTStream *sink)
{
char fnam[LY_MAXPATH];
const char *suffix;
HTStream *me;
if (traversal) {
LYCancelledFetch = TRUE;
return (NULL);
}
#if defined(EXEC_LINKS) || defined(EXEC_SCRIPTS)
if (pres->quality >= 999.0) { /* exec link */
if (dump_output_immediately) {
LYCancelledFetch = TRUE;
return (NULL);
}
if (no_exec) {
HTAlert(EXECUTION_DISABLED);
return HTPlainPresent(pres, anchor, sink);
}
if (!local_exec) {
if (local_exec_on_local_files &&
(LYJumpFileURL ||
!strncmp(anchor->address, "file://localhost", 16))) {
/* allow it to continue */
;
} else {
char *buf = 0;
HTSprintf0(&buf, EXECUTION_DISABLED_FOR_FILE,
key_for_func(LYK_OPTIONS));
HTAlert(buf);
FREE(buf);
return HTPlainPresent(pres, anchor, sink);
}
}
}
#endif /* EXEC_LINKS || EXEC_SCRIPTS */
if (dump_output_immediately) {
return (HTSaveToFile(pres, anchor, sink));
}
me = typecalloc(HTStream);
if (me == NULL)
outofmem(__FILE__, "HTSaveAndExecute");
assert(me != NULL);
me->isa = &HTFWriter;
me->input_format = pres->rep;
me->output_format = pres->rep_out;
me->anchor = anchor;
me->sink = sink;
if (LYCachedTemp(fnam, &(anchor->FileCache))) {
/* This used to be LYNewBinFile(fnam); changed to a different call so
* that the open fp gets registered in the list keeping track of temp
* files, equivalent to when LYOpenTemp() gets called below. This
* avoids a file descriptor leak caused by LYCloseTempFP() not being
* able to find the fp. The binary suffix is expected to not be used,
* it's only for fallback in unusual error cases. - kw
*/
me->fp = LYOpenTempRewrite(fnam, BIN_SUFFIX, BIN_W);
} else {
#if defined(WIN_EX) && !defined(__CYGWIN__) /* 1998/01/04 (Sun) */
if (!strncmp(anchor->address, "file://localhost", 16)) {
/* 1998/01/23 (Fri) 17:38:26 */
unsigned char *cp, *view_fname;
#define IS_SJIS_HI1(hi) ((0x81<=hi)&&(hi<=0x9F)) /* 1st lev. */
#define IS_SJIS_HI2(hi) ((0xE0<=hi)&&(hi<=0xEF)) /* 2nd lev. */
me->fp = NULL;
view_fname = fnam + 3;
LYstrncpy(view_fname, anchor->address + 17, sizeof(fnam) - 5);
HTUnEscape(view_fname);
if (strchr(view_fname, ':') == NULL) {
fnam[0] = windows_drive[0];
fnam[1] = windows_drive[1];
fnam[2] = '/';
view_fname = fnam;
}
/* 1998/04/21 (Tue) 11:04:16 */
cp = view_fname;
while (*cp) {
if (IS_SJIS_HI1(*cp) || IS_SJIS_HI2(*cp)) {
cp += 2;
continue;
} else if (*cp == '/') {
*cp = '\\';
}
cp++;
}
if (strchr(view_fname, ' '))
view_fname = (unsigned char *) quote_pathname(view_fname);
StrAllocCopy(me->viewer_command, pres->command);
me->end_command = mailcap_substitute(anchor, pres, view_fname);
me->remove_command = NULL;
return me;
}
#endif
/*
* Check for a suffix.
* Save the file under a suitably suffixed name.
*/
if (!strcasecomp(pres->rep->name, "text/html")) {
suffix = HTML_SUFFIX;
} else if (!strncasecomp(pres->rep->name, "text/", 5)) {
suffix = TEXT_SUFFIX;
} else if ((suffix = HTFileSuffix(pres->rep,
anchor->content_encoding)) == 0
|| *suffix != '.') {
if (!strncasecomp(pres->rep->name, "application/", 12)) {
suffix = BIN_SUFFIX;
} else {
suffix = HTML_SUFFIX;
}
}
me->fp = LYOpenTemp(fnam, suffix, BIN_W);
}
if (!me->fp) {
HTAlert(CANNOT_OPEN_TEMP);
FREE(me);
return NULL;
}
StrAllocCopy(me->viewer_command, pres->command);
/*
* Make command to process file.
*/
me->end_command = mailcap_substitute(anchor, pres, fnam);
/*
* Make command to delete file.
*/
me->remove_command = 0;
HTAddParam(&(me->remove_command), REMOVE_COMMAND, 1, fnam);
HTEndParam(&(me->remove_command), REMOVE_COMMAND, 1);
StrAllocCopy(anchor->FileCache, fnam);
return me;
}
/* Format Converter using system command
* -------------------------------------
*/
/* @@@@@@@@@@@@@@@@@@@@@@ */
/* Save to a local file LJM!!!
* --------------------
*
* usually a binary file that can't be displayed
*
* originally from Ghostview handling by Marc Andreseen.
* Asks the user if he wants to continue, creates a temporary
* file, and writes to it. In HTSaveToFile_Free
* the user will see a list of choices for download
*/
HTStream *HTSaveToFile(HTPresentation *pres,
HTParentAnchor *anchor,
HTStream *sink)
{
HTStream *ret_obj;
char fnam[LY_MAXPATH];
const char *suffix;
char *cp;
int c = 0;
#ifdef VMS
BOOL IsBinary = TRUE;
#endif
ret_obj = typecalloc(HTStream);
if (ret_obj == NULL)
outofmem(__FILE__, "HTSaveToFile");
assert(ret_obj != NULL);
ret_obj->isa = &HTFWriter;
ret_obj->remove_command = NULL;
ret_obj->end_command = NULL;
ret_obj->input_format = pres->rep;
ret_obj->output_format = pres->rep_out;
ret_obj->anchor = anchor;
ret_obj->sink = sink;
if (dump_output_immediately) {
ret_obj->fp = stdout; /* stdout */
if (HTOutputFormat == HTAtom_for("www/download"))
goto Prepend_BASE;
return ret_obj;
}
LYCancelDownload = FALSE;
if (HTOutputFormat != HTAtom_for("www/download")) {
if (traversal ||
(no_download && !override_no_download && no_disk_save)) {
if (!traversal) {
HTAlert(CANNOT_DISPLAY_FILE);
}
LYCancelDownload = TRUE;
if (traversal)
LYCancelledFetch = TRUE;
FREE(ret_obj);
return (NULL);
}
if (((cp = strchr(pres->rep->name, ';')) != NULL) &&
strstr((cp + 1), "charset") != NULL) {
_user_message(MSG_DOWNLOAD_OR_CANCEL, pres->rep->name);
} else if (*(pres->rep->name) != '\0') {
_user_message(MSG_DOWNLOAD_OR_CANCEL, pres->rep->name);
} else {
_statusline(CANNOT_DISPLAY_FILE_D_OR_C);
}
while (c != 'D' && c != 'C' && !LYCharIsINTERRUPT(c)) {
c = LYgetch_single();
#ifdef VMS
/*
* 'C'ancel on Control-C or Control-Y and
* a 'N'o to the "really exit" query. - FM
*/
if (HadVMSInterrupt) {
HadVMSInterrupt = FALSE;
c = 'C';
}
#endif /* VMS */
}
/*
* Cancel on 'C', 'c' or Control-G or Control-C.
*/
if (c == 'C' || LYCharIsINTERRUPT(c)) {
_statusline(CANCELLING_FILE);
LYCancelDownload = TRUE;
FREE(ret_obj);
return (NULL);
}
}
/*
* Set up a 'D'ownload.
*/
if (LYCachedTemp(fnam, &(anchor->FileCache))) {
/* This used to be LYNewBinFile(fnam); changed to a different call so
* that the open fp gets registered in the list keeping track of temp
* files, equivalent to when LYOpenTemp() gets called below. This
* avoids a file descriptor leak caused by LYCloseTempFP() not being
* able to find the fp. The binary suffix is expected to not be used,
* it's only for fallback in unusual error cases. - kw
*/
ret_obj->fp = LYOpenTempRewrite(fnam, BIN_SUFFIX, BIN_W);
} else {
/*
* Check for a suffix.
* Save the file under a suitably suffixed name.
*/
if (!strcasecomp(pres->rep->name, "text/html")) {
suffix = HTML_SUFFIX;
} else if (!strncasecomp(pres->rep->name, "text/", 5)) {
suffix = TEXT_SUFFIX;
} else if (!strncasecomp(pres->rep->name, "application/", 12)) {
suffix = BIN_SUFFIX;
} else if ((suffix = HTFileSuffix(pres->rep,
anchor->content_encoding)) == 0
|| *suffix != '.') {
suffix = HTML_SUFFIX;
}
ret_obj->fp = LYOpenTemp(fnam, suffix, BIN_W);
}
if (!ret_obj->fp) {
HTAlert(CANNOT_OPEN_OUTPUT);
FREE(ret_obj);
return NULL;
}
if (0 == strncasecomp(pres->rep->name, "text/", 5) ||
0 == strcasecomp(pres->rep->name, "application/postscript") ||
0 == strcasecomp(pres->rep->name, "application/x-RUNOFF-MANUAL"))
/*
* It's a text file requested via 'd'ownload. Keep adding others to
* the above list, 'til we add a configurable procedure. - FM
*/
#ifdef VMS
IsBinary = FALSE;
#endif
/*
* Any "application/foo" or other non-"text/foo" types that are actually
* text but not checked, above, will be treated as binary, so show the type
* to help sort that out later. Unix folks don't need to know this, but
* we'll show it to them, too. - FM
*/
HTInfoMsg2(CONTENT_TYPE_MSG, pres->rep->name);
StrAllocCopy(WWW_Download_File, fnam);
/*
* Make command to delete file.
*/
ret_obj->remove_command = 0;
HTAddParam(&(ret_obj->remove_command), REMOVE_COMMAND, 1, fnam);
HTEndParam(&(ret_obj->remove_command), REMOVE_COMMAND, 1);
#ifdef VMS
if (IsBinary && UseFixedRecords) {
StrAllocCopy(ret_obj->end_command, "SaveVMSBinaryFile");
FIXED_RECORD_COMMAND = 0;
HTAddParam(&FIXED_RECORD_COMMAND, FIXED_RECORD_COMMAND_MASK, 1, fnam);
HTEndParam(&FIXED_RECORD_COMMAND, FIXED_RECORD_COMMAND_MASK, 1);
} else {
#endif /* VMS */
StrAllocCopy(ret_obj->end_command, "SaveToFile");
#ifdef VMS
}
#endif /* VMS */
_statusline(RETRIEVING_FILE);
StrAllocCopy(anchor->FileCache, fnam);
Prepend_BASE:
if (LYPrependBaseToSource &&
!strncasecomp(pres->rep->name, "text/html", 9) &&
!anchor->content_encoding) {
/*
* Add the document's base as a BASE tag at the top of the file, so
* that any partial or relative URLs within it will be resolved
* relative to that if no BASE tag is present and replaces it. Note
* that the markup will be technically invalid if a DOCTYPE
* declaration, or HTML or HEAD tags, are present, and thus the file
* may need editing for perfection. - FM
*
* Add timestamp (last reload).
*/
char *temp = NULL;
if (non_empty(anchor->content_base)) {
StrAllocCopy(temp, anchor->content_base);
} else if (non_empty(anchor->content_location)) {
StrAllocCopy(temp, anchor->content_location);
}
if (temp) {
LYRemoveBlanks(temp);
if (!is_url(temp)) {
FREE(temp);
}
}
fprintf(ret_obj->fp,
"<!-- X-URL: %s -->\n", anchor->address);
if (non_empty(anchor->date)) {
fprintf(ret_obj->fp,
"<!-- Date: %s -->\n", anchor->date);
if (non_empty(anchor->last_modified)
&& strcmp(anchor->last_modified, anchor->date)
&& strcmp(anchor->last_modified,
"Thu, 01 Jan 1970 00:00:01 GMT")) {
fprintf(ret_obj->fp,
"<!-- Last-Modified: %s -->\n", anchor->last_modified);
}
}
fprintf(ret_obj->fp,
"<BASE HREF=\"%s\">\n\n", (temp ? temp : anchor->address));
FREE(temp);
}
if (LYPrependCharsetToSource &&
!strncasecomp(pres->rep->name, "text/html", 9) &&
!anchor->content_encoding) {
/*
* Add the document's charset as a META CHARSET tag at the top of the
* file, so HTTP charset header will not be forgotten when a document
* saved as local file. We add this line only(!) if HTTP charset
* present. - LP Note that the markup will be technically invalid if a
* DOCTYPE declaration, or HTML or HEAD tags, are present, and thus the
* file may need editing for perfection. - FM
*/
char *temp = NULL;
if (non_empty(anchor->charset)) {
StrAllocCopy(temp, anchor->charset);
LYRemoveBlanks(temp);
fprintf(ret_obj->fp,
"<META HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=%s\">\n\n",
temp);
}
FREE(temp);
}
return ret_obj;
}
/* Set up stream for uncompressing - FM
* -------------------------------
*/
HTStream *HTCompressed(HTPresentation *pres,
HTParentAnchor *anchor,
HTStream *sink)
{
HTStream *me;
HTFormat format;
char *type = NULL;
HTPresentation *Pres = NULL;
HTPresentation *Pnow = NULL;
int n, i;
BOOL can_present = FALSE;
char fnam[LY_MAXPATH];
char temp[LY_MAXPATH]; /* actually stores just a suffix */
const char *suffix;
char *uncompress_mask = NULL;
const char *compress_suffix = "";
const char *middle;
/*
* Deal with any inappropriate invocations of this function, or a download
* request, in which case we won't bother to uncompress the file. - FM
*/
if (!(anchor && anchor->content_encoding && anchor->content_type)) {
/*
* We have no idea what we're dealing with, so treat it as a binary
* stream. - FM
*/
format = HTAtom_for("application/octet-stream");
me = HTStreamStack(format, pres->rep_out, sink, anchor);
return me;
}
n = HTList_count(HTPresentations);
for (i = 0; i < n; i++) {
Pnow = (HTPresentation *) HTList_objectAt(HTPresentations, i);
if (!strcasecomp(Pnow->rep->name, anchor->content_type) &&
Pnow->rep_out == WWW_PRESENT) {
const char *program = "";
/*
* Pick the best presentation. User-defined mappings are at the
* end of the list, and unless the quality is lower, we prefer
* those.
*/
if (Pres == 0)
Pres = Pnow;
else if (Pres->quality > Pnow->quality)
continue;
else
Pres = Pnow;
/*
* We have a presentation mapping for it. - FM
*/
can_present = TRUE;
switch (HTEncodingToCompressType(anchor->content_encoding)) {
case cftGzip:
if ((program = HTGetProgramPath(ppGZIP)) != NULL) {
/*
* It's compressed with the modern gzip. - FM
*/
StrAllocCopy(uncompress_mask, program);
StrAllocCat(uncompress_mask, " -d --no-name %s");
compress_suffix = "gz";
}
break;
case cftDeflate:
if ((program = HTGetProgramPath(ppINFLATE)) != NULL) {
/*
* It's compressed with a zlib wrapper.
*/
StrAllocCopy(uncompress_mask, program);
StrAllocCat(uncompress_mask, " %s");
compress_suffix = "zz";
}
break;
case cftBzip2:
if ((program = HTGetProgramPath(ppBZIP2)) != NULL) {
StrAllocCopy(uncompress_mask, program);
StrAllocCat(uncompress_mask, " -d %s");
compress_suffix = "bz2";
}
break;
case cftCompress:
if ((program = HTGetProgramPath(ppUNCOMPRESS)) != NULL) {
/*
* It's compressed the old fashioned Unix way. - FM
*/
StrAllocCopy(uncompress_mask, program);
StrAllocCat(uncompress_mask, " %s");
compress_suffix = "Z";
}
break;
case cftNone:
break;
}
}
}
if (can_present == FALSE || /* no presentation mapping */
uncompress_mask == NULL || /* not gzip or compress */
strchr(anchor->content_type, ';') || /* wrong charset */
HTOutputFormat == HTAtom_for("www/download") || /* download */
!strcasecomp(pres->rep_out->name, "www/download") || /* download */
(traversal && /* only handle html or plain text for traversals */
strcasecomp(anchor->content_type, "text/html") &&
strcasecomp(anchor->content_type, "text/plain"))) {
/*
* Cast the Content-Encoding to a Content-Type and pass it back to be
* handled as that type. - FM
*/
if (strchr(anchor->content_encoding, '/') == NULL) {
/*
* Use "x-" prefix, none of the types we are likely to construct
* here are official. That is we generate "application/x-gzip" and
* so on. - kw
*/
if (!strncasecomp(anchor->content_encoding, "x-", 2))
StrAllocCopy(type, "application/");
else
StrAllocCopy(type, "application/x-");
StrAllocCat(type, anchor->content_encoding);
} else {
StrAllocCopy(type, anchor->content_encoding);
}
format = HTAtom_for(type);
FREE(type);
FREE(uncompress_mask);
me = HTStreamStack(format, pres->rep_out, sink, anchor);
return me;
}
/*
* Set up the stream structure for uncompressing and then handling based on
* the uncompressed Content-Type.- FM
*/
me = typecalloc(HTStream);
if (me == NULL)
outofmem(__FILE__, "HTCompressed");
assert(me != NULL);
me->isa = &HTFWriter;
me->input_format = pres->rep;
me->output_format = pres->rep_out;
me->anchor = anchor;
me->sink = sink;
#ifdef FNAMES_8_3
me->idash = FALSE;
#endif
/*
* Remove any old versions of the file. - FM
*/
if (anchor->FileCache) {
LYRemoveTemp(anchor->FileCache);
FREE(anchor->FileCache);
}
/*
* Get a new temporary filename and substitute a suitable suffix. - FM
*/
middle = NULL;
if (!strcasecomp(anchor->content_type, "text/html")) {
middle = HTML_SUFFIX;
middle++; /* point to 'h' of .htm(l) - kw */
} else if (!strncasecomp(anchor->content_type, "text/", 5)) {
middle = TEXT_SUFFIX + 1;
} else if (!strncasecomp(anchor->content_type, "application/", 12)) {
/* FIXME: why is this BEFORE HTFileSuffix? */
middle = BIN_SUFFIX + 1;
} else if ((suffix =
HTFileSuffix(HTAtom_for(anchor->content_type), NULL)) &&
*suffix == '.') {
#if defined(VMS) || defined(FNAMES_8_3)
if (strchr(suffix + 1, '.') == NULL)
#endif
middle = suffix + 1;
}
temp[0] = 0; /* construct the suffix */
if (middle) {
#ifdef FNAMES_8_3
me->idash = TRUE; /* remember position of '-' - kw */
strcat(temp, "-"); /* NAME-htm, NAME-txt, etc. - hack for DOS */
#else
strcat(temp, "."); /* NAME.html, NAME-txt etc. */
#endif /* FNAMES_8_3 */
strcat(temp, middle);
#ifdef VMS
strcat(temp, "-"); /* NAME.html-gz, NAME.txt-gz, NAME.txt-Z etc. */
#else
strcat(temp, "."); /* NAME-htm.gz (DOS), NAME.html.gz (UNIX)etc. */
#endif /* VMS */
}
strcat(temp, compress_suffix);
/*
* Open the file for receiving the compressed input stream. - FM
*/
me->fp = LYOpenTemp(fnam, temp, BIN_W);
if (!me->fp) {
HTAlert(CANNOT_OPEN_TEMP);
FREE(uncompress_mask);
FREE(me);
return NULL;
}
/*
* me->viewer_command will be NULL if the converter Pres found above is not
* for an external viewer but an internal HTStream converter. We also
* don't set it under conditions where HTSaveAndExecute would disallow
* execution of the command. - KW
*/
if (!dump_output_immediately && !traversal
#if defined(EXEC_LINKS) || defined(EXEC_SCRIPTS)
&& (Pres->quality < 999.0 ||
(!no_exec && /* allowed exec link or script ? */
(local_exec ||
(local_exec_on_local_files &&
(LYJumpFileURL ||
!strncmp(anchor->address, "file://localhost", 16))))))
#endif /* EXEC_LINKS || EXEC_SCRIPTS */
) {
StrAllocCopy(me->viewer_command, Pres->command);
}
/*
* Make command to process file. - FM
*/
#ifdef USE_BZLIB
if (compress_suffix[0] == 'b' /* must be bzip2 */
&& !me->viewer_command) {
/*
* We won't call bzip2 externally, so we don't need to supply a command
* for it.
*/
StrAllocCopy(me->end_command, "");
} else
#endif
#ifdef USE_ZLIB
/* FIXME: allow deflate here, e.g., 'z' */
if (compress_suffix[0] == 'g' /* must be gzip */
&& !me->viewer_command) {
/*
* We won't call gzip or compress externally, so we don't need to
* supply a command for it.
*/
StrAllocCopy(me->end_command, "");
} else
#endif /* USE_ZLIB */
{
me->end_command = 0;
HTAddParam(&(me->end_command), uncompress_mask, 1, fnam);
HTEndParam(&(me->end_command), uncompress_mask, 1);
}
FREE(uncompress_mask);
/*
* Make command to delete file. - FM
*/
me->remove_command = 0;
HTAddParam(&(me->remove_command), REMOVE_COMMAND, 1, fnam);
HTEndParam(&(me->remove_command), REMOVE_COMMAND, 1);
/*
* Save the filename and return the structure. - FM
*/
StrAllocCopy(anchor->FileCache, fnam);
return me;
}
/* Dump output to stdout - LJM & FM
* ---------------------
*
*/
HTStream *HTDumpToStdout(HTPresentation *pres GCC_UNUSED,
HTParentAnchor *anchor,
HTStream *sink GCC_UNUSED)
{
HTStream *ret_obj;
ret_obj = typecalloc(HTStream);
if (ret_obj == NULL)
outofmem(__FILE__, "HTDumpToStdout");
assert(ret_obj != NULL);
ret_obj->isa = &HTFWriter;
ret_obj->remove_command = NULL;
ret_obj->end_command = NULL;
ret_obj->anchor = anchor;
ret_obj->fp = stdout; /* stdout */
return ret_obj;
}
#if defined(VMS) && !defined(USE_COMMAND_FILE)
#include <fab.h>
#include <rmsdef.h> /* RMS status codes */
#include <iodef.h> /* I/O function codes */
#include <fibdef.h> /* file information block defs */
#include <atrdef.h> /* attribute request codes */
#ifdef NOTDEFINED /*** Not all versions of VMS compilers have these. ***/
#include <fchdef.h> /* file characteristics */
#include <fatdef.h> /* file attribute defs */
#else /*** So we'll define what we need from them ourselves. ***/
#define FCH$V_CONTIGB 0x005 /* pos of cont best try bit */
#define FCH$M_CONTIGB (1 << FCH$V_CONTIGB) /* contig best try bit mask */
/* VMS I/O User's Reference Manual: Part I (V5.x doc set) */
struct fatdef {
unsigned char fat$b_rtype, fat$b_rattrib;
unsigned short fat$w_rsize;
unsigned long fat$l_hiblk, fat$l_efblk;
unsigned short fat$w_ffbyte;
unsigned char fat$b_bktsize, fat$b_vfcsize;
unsigned short fat$w_maxrec, fat$w_defext, fat$w_gbc;
unsigned:16,:32,:16; /* 6 bytes reserved, 2 bytes not used */
unsigned short fat$w_versions;
};
#endif /* NOTDEFINED */
/* arbitrary descriptor without type and class info */
typedef struct dsc {
unsigned short len, mbz;
void *adr;
} Desc;
extern unsigned long sys$open(), sys$qiow(), sys$dassgn();
#define syswork(sts) ((sts) & 1)
#define sysfail(sts) (!syswork(sts))
/*
* 25-Jul-1995 - Pat Rankin (rankin@eql.caltech.edu)
*
* Force a file to be marked as having fixed-length, 512 byte records
* without implied carriage control, and with best_try_contiguous set.
*/
static unsigned long LYVMS_FixedLengthRecords(char *filename)
{
struct FAB fab; /* RMS file access block */
struct fibdef fib; /* XQP file information block */
struct fatdef recattr; /* XQP file "record" attributes */
struct atrdef attr_rqst_list[3]; /* XQP attribute request itemlist */
Desc fib_dsc;
unsigned short channel, iosb[4];
unsigned long fchars, sts, tmp;
/* initialize file access block */
fab = cc$rms_fab;
fab.fab$l_fna = filename;
fab.fab$b_fns = (unsigned char) strlen(filename);
fab.fab$l_fop = FAB$M_UFO; /* user file open; no further RMS processing */
fab.fab$b_fac = FAB$M_PUT; /* need write access */
fab.fab$b_shr = FAB$M_NIL; /* exclusive access */
sts = sys$open(&fab); /* channel in stv; $dassgn to close */
if (sts == RMS$_FLK) {
/* For MultiNet, at least, if the file was just written by a remote
NFS client, the local NFS server might still have it open, and the
failed access attempt will provoke it to be closed, so try again. */
sts = sys$open(&fab);
}
if (sysfail(sts))
return sts;
/* RMS supplies a user-mode channel (see FAB$L_FOP FAB$V_UFO doc) */
channel = (unsigned short) fab.fab$l_stv;
/* set up ACP interface structures */
/* file information block, passed by descriptor; it's okay to start with
an empty FIB after RMS has accessed the file for us */
fib_dsc.len = sizeof fib;
fib_dsc.mbz = 0;
fib_dsc.adr = &fib;
memset((void *) &fib, 0, sizeof fib);
/* attribute request list */
attr_rqst_list[0].atr$w_size = sizeof recattr;
attr_rqst_list[0].atr$w_type = ATR$C_RECATTR;
*(void **) &attr_rqst_list[0].atr$l_addr = (void *) &recattr;
attr_rqst_list[1].atr$w_size = sizeof fchars;
attr_rqst_list[1].atr$w_type = ATR$C_UCHAR;
*(void **) &attr_rqst_list[1].atr$l_addr = (void *) &fchars;
attr_rqst_list[2].atr$w_size = attr_rqst_list[2].atr$w_type = 0;
attr_rqst_list[2].atr$l_addr = 0;
/* file "record" attributes */
memset((void *) &recattr, 0, sizeof recattr);
fchars = 0; /* file characteristics */
/* get current attributes */
sts = sys$qiow(0, channel, IO$_ACCESS, iosb, (void (*)()) 0, 0,
&fib_dsc, 0, 0, 0, attr_rqst_list, 0);
if (syswork(sts))
sts = iosb[0];
/* set desired attributes */
if (syswork(sts)) {
recattr.fat$b_rtype = FAB$C_SEQ | FAB$C_FIX; /* org=seq, rfm=fix */
recattr.fat$w_rsize = recattr.fat$w_maxrec = 512; /* lrl=mrs=512 */
recattr.fat$b_rattrib = 0; /* rat=none */
fchars |= FCH$M_CONTIGB; /* contiguous-best-try */
sts = sys$qiow(0, channel, IO$_DEACCESS, iosb, (void (*)()) 0, 0,
&fib_dsc, 0, 0, 0, attr_rqst_list, 0);
if (syswork(sts))
sts = iosb[0];
}
/* all done */
tmp = sys$dassgn(channel);
if (syswork(sts))
sts = tmp;
return sts;
}
#endif /* VMS && !USE_COMMAND_FILE */
|