/*
** Remove a conversion routine from the presentation list.
** The conversion routine must match up with the given args.
*/
PUBLIC void HTRemoveConversion ARGS3(
WWW_CONST char *, representation_in,
WWW_CONST char *, representation_out,
HTConverter*, converter
){
int numberOfPresentations;
HTPresentation * pres;
HTAtom *rep_in, *rep_out;
int x;
numberOfPresentations = HTList_count(HTPresentations);
rep_in = HTAtom_for(representation_in);
rep_out = HTAtom_for(representation_out);
for (x = 0; x < numberOfPresentations; x++) {
pres = HTList_objectAt(HTPresentations, x);
if (pres) {
if ((!strcmp(pres->rep->name,rep_in->name)) &&
(!strcmp(pres->rep_out->name,rep_out->name)) &&
(pres->converter == converter)) {
HTList_removeObject(HTPresentations,pres);
}
}
}
}
HTAnchor * HTHistory_recall
ARGS1 (int,number)
{
HTAnchor * destination =
HTList_objectAt (history, HTList_count (history) - number);
if (destination && destination != HTList_lastObject (history))
HTList_addObject (history, destination);
return destination;
}
PUBLIC HText * LMHText_new (
HTRequest * request,
HTParentAnchor * anchor,
HTStream *outstrm)
{
HTLine * line;
HText * self;
if ((self = (HText *) HT_CALLOC(1, sizeof(*self))) == NULL)
/* HT_OUTOFMEM("HText"); */
return self;
self->pLm = Context_getLineMode(request);
if (!loaded_texts) loaded_texts = HTList_new();
HTList_addObject(loaded_texts, self);
if (HTList_count(loaded_texts) >= LOADED_LIMIT) {
HTTRACE(CACHE_TRACE, "MemoryCache. Freeing off cached doc.\n");
HText_free((HText *)HTList_removeFirstObject(loaded_texts));
}
if ((line = self->last_line = (HTLine *) HT_MALLOC(LINE_SIZE(MAX_LINE))) == NULL)
HT_OUTOFMEM("HText_New");
line->next = line->prev = line;
line->offset = line->size = 0;
self->lines = self->chars = 0;
self->title = 0;
self->first_anchor = self->last_anchor = self->current_anchor = 0;
self->style = &default_style;
self->top_of_screen = 0;
self->node_anchor = anchor;
self->last_anchor_number = 0; /* Numbering of them for references */
self->stale = YES;
self->target = NULL;
HTAnchor_setDocument(anchor, (void *) self);
clear_screen();
HTMainText = self;
HTMainAnchor = anchor;
self->display_on_the_fly = DISPLAY_LINES;
self->all_pages = NO; /* One page at a time on the fly */
if (!space_string) { /* Make a blank line */
char *p;
if ((space_string = (char *) HT_MALLOC(HTScreenWidth+1)) == NULL)
HT_OUTOFMEM("HText_New");
for (p=space_string; p<space_string+HTScreenWidth; p++)
*p = ' '; /* Used for printfs later */
space_string[HTScreenWidth] = '\0';
}
return self;
}
/* Determine a suitable suffix, given the representation
** -----------------------------------------------------
**
** On entry,
** rep is the atomized MIME style representation
**
** On exit,
** returns a pointer to a suitable suffix string if one has been
** found, else "".
*/
PUBLIC WWW_CONST char * HTFileSuffix ARGS1(HTAtom*, rep)
{
HTSuffix * suff;
int n;
int i;
if (!HTSuffixes) HTFileInit();
n = HTList_count(HTSuffixes);
for(i=0; i<n; i++) {
suff = HTList_objectAt(HTSuffixes, i);
if (suff->rep == rep) {
return suff->suffix; /* OK -- found */
}
}
return ""; /* Dunno */
}
/*
** Here you can provide a complete list instead of a single token.
** The list has to be in the order the _encodings_ were applied - that
** is, the same way that _encodings_ are to be applied. This is all consistent
** with the order of the Content-Encoding header.
*/
PUBLIC HTStream * HTTransferDecodingStack (HTList * encodings,
HTStream * target,
HTRequest * request,
void * param)
{
if (encodings) {
HTEncoding pres;
int cnt = HTList_count(encodings);
HTStream * top = target;
while (cnt > 0) {
pres = (HTEncoding) HTList_objectAt(encodings, --cnt);
top = HTTransferCodingStack(pres, top, request, param, NO);
if (top == HTBlackHole()) break;
}
return top;
}
return HTErrorStream();
}
/* Find the cost of a filter stack
** -------------------------------
**
** Must return the cost of the same stack which StreamStack would set up.
**
** On entry,
** length The size of the data to be converted
*/
PUBLIC float HTStackValue ARGS4(
HTFormat, format_in,
HTFormat, rep_out,
float, initial_value,
long int, length)
{
HTAtom * wildcard = HTAtom_for("*");
#ifndef DISABLE_TRACE
if (www2Trace) fprintf(stderr,
"HTFormat: Evaluating stream stack for %s worth %.3f to %s\n",
HTAtom_name(format_in), initial_value,
HTAtom_name(rep_out));
#endif
if (rep_out == WWW_SOURCE ||
rep_out == format_in) return 0.0;
if (!HTPresentations) HTFormatInit(); /* set up the list */
{
int n = HTList_count(HTPresentations);
int i;
HTPresentation * pres;
for(i=0; i<n; i++) {
pres = HTList_objectAt(HTPresentations, i);
if (pres->rep == format_in && (
pres->rep_out == rep_out ||
pres->rep_out == wildcard)) {
float value = initial_value * pres->quality;
if (HTMaxSecs != 0.0)
value = value - (length*pres->secs_per_byte + pres->secs)
/HTMaxSecs;
return value;
}
}
}
return -1e30; /* Really bad */
}
/* Find the cost of a filter stack
** -------------------------------
**
** Must return the cost of the same stack which StreamStack would set up.
**
** On entry,
** length The size of the data to be converted
*/
PUBLIC float HTStackValue ARGS4(
HTFormat, rep_in,
HTFormat, rep_out,
float, initial_value,
long int, length)
{
HTAtom * wildcard = WWW_WILDCARD_REP_OUT;
CTRACE((tfp, "HTFormat: Evaluating stream stack for %s worth %.3f to %s\n",
HTAtom_name(rep_in), initial_value, HTAtom_name(rep_out)));
if (rep_out == WWW_SOURCE || rep_out == rep_in)
return 0.0;
/* don't do anymore do it in the Lynx code at startup LJM */
/* if (!HTPresentations) HTFormatInit(); */ /* set up the list */
{
int n = HTList_count(HTPresentations);
int i;
HTPresentation * pres;
for (i = 0; i < n; i++) {
pres = (HTPresentation *)HTList_objectAt(HTPresentations, i);
if (pres->rep == rep_in &&
(pres->rep_out == rep_out || pres->rep_out == wildcard)) {
float value = initial_value * pres->quality;
if (HTMaxSecs != 0.0)
value = value - (length*pres->secs_per_byte + pres->secs)
/HTMaxSecs;
return value;
}
}
}
return (float) -1e30; /* Really bad */
}
PUBLIC float HTFileValue ARGS1 (WWW_CONST char *,filename)
{
HTSuffix * suff;
int n;
int i;
int lf = strlen(filename);
if (!HTSuffixes) HTFileInit();
n = HTList_count(HTSuffixes);
for(i=0; i<n; i++) {
int ls;
suff = HTList_objectAt(HTSuffixes, i);
ls = strlen(suff->suffix);
if ((ls <= lf) && 0==strcmp(suff->suffix, filename + lf - ls)) {
#ifndef DISABLE_TRACE
if (www2Trace) fprintf(stderr, "File: Value of %s is %.3f\n",
filename, suff->quality);
#endif
return suff->quality; /* OK -- found */
}
}
return 0.3; /* Dunno! */
}
/* Create a filter stack
** ---------------------
**
** If a wildcard match is made, a temporary HTPresentation
** structure is made to hold the destination format while the
** new stack is generated. This is just to pass the out format to
** MIME so far. Storing the format of a stream in the stream might
** be a lot neater.
*/
PUBLIC HTStream * HTStreamStack ARGS5(
HTFormat, format_in,
HTFormat, rep_out,
int, compressed,
HTStream*, sink,
HTParentAnchor*, anchor)
{
HTAtom * wildcard = HTAtom_for("*");
HTPresentation temp;
/* Inherit force_dump_to_file from mo-www.c. */
extern int force_dump_to_file;
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf(stderr,
"[HTStreamStack] Constructing stream stack for %s to %s\n",
HTAtom_name(format_in),
HTAtom_name(rep_out));
#endif
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr,
" Compressed is %d\n", compressed);
#endif
if (rep_out == WWW_SOURCE ||
rep_out == format_in)
{
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr,
"[HTStreamStack] rep_out == WWW_SOURCE | rep_out == format_in; returning sink\n");
#endif
return sink;
}
if (!HTPresentations)
HTFormatInit(); /* set up the list */
if (force_dump_to_file && format_in != WWW_MIME)
{
return HTSaveAndExecute (NULL, anchor, sink, format_in, compressed);
}
{
int n = HTList_count(HTPresentations);
int i;
HTPresentation * pres;
for(i=0; i<n; i++)
{
pres = HTList_objectAt(HTPresentations, i);
#ifndef DISABLE_TRACE
if (www2Trace)
{
fprintf (stderr, "HTFormat: looking at pres '%s'\n",
HTAtom_name (pres->rep));
if (pres->command)
fprintf (stderr, "HTFormat: pres->command is '%s'\n",
pres->command);
else
fprintf (stderr, "HTFormat: pres->command doesn't exist\n");
}
#endif
if (pres->rep == format_in ||
partial_wildcard_matches (pres->rep, format_in))
{
if (pres->command && strstr (pres->command, "mosaic-internal-present"))
{
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "[HTStreamStack] HEY HEY HEY caught internal-present\n");
#endif
return HTPlainPresent (pres, anchor, sink, format_in, compressed);
}
if (pres->rep_out == rep_out)
{
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr,
"[HTStreamStack] pres->rep_out == rep_out\n");
#endif
return (*pres->converter)(pres, anchor, sink, format_in, compressed);
}
if (pres->rep_out == wildcard)
{
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr,
"[HTStreamStack] pres->rep_out == wildcard\n");
#endif
temp = *pres;/* make temp conversion to needed fmt */
temp.rep_out = rep_out; /* yuk */
return (*pres->converter)(&temp, anchor, sink, format_in, compressed);
}
}
}
}
#ifndef DISABLE_TRACE
if (www2Trace)
{
fprintf (stderr, "[HTStreamStack] Returning NULL at bottom.\n");
}
#endif
return NULL;
}
void LYDownload(char *line)
{
char *Line = NULL, *method, *file, *sug_file = NULL;
int method_number;
int count;
char *the_command = 0;
bstring *buffer = NULL;
bstring *command = NULL;
char *cp;
lynx_list_item_type *download_command = 0;
int ch;
RecallType recall;
int FnameTotal;
int FnameNum;
BOOLEAN FirstRecall = TRUE;
BOOLEAN SecondS = FALSE;
#ifdef VMS
LYDidRename = FALSE;
#endif /* VMS */
/*
* Make sure we have a valid download file comparison string loaded via the
* download options menu. - FM
*/
if (LYValidDownloadFile[0] == '\0') {
goto failed;
}
/*
* Make a copy of the LYNXDOWNLOAD internal URL for parsing. - FM
*/
StrAllocCopy(Line, line);
/*
* Parse out the File, sug_file, and the Method.
*/
if ((file = strstr(Line, "/File=")) == NULL)
goto failed;
*file = '\0';
/*
* Go past "File=".
*/
file += 6;
if ((sug_file = strstr(file + 1, "/SugFile=")) != NULL) {
*sug_file = '\0';
/*
* Go past "SugFile=".
*/
sug_file += 9;
HTUnEscape(sug_file);
}
/*
* Make sure that the file string is the one from the last displayed
* download options menu. - FM
*/
if (strcmp(file, LYValidDownloadFile)) {
goto failed;
}
#if defined(DIRED_SUPPORT)
/* FIXME: use HTLocalName */
if (!StrNCmp(file, "file://localhost", 16)) {
#ifdef __DJGPP__
if (!StrNCmp(file + 16, "/dev/", 5))
file += 16;
else {
file += 17;
file = HTDOS_name(file);
}
#else
file += 16;
#endif /* __DJGPP__ */
} else if (isFILE_URL(file))
file += LEN_FILE_URL;
HTUnEscape(file);
#else
#if defined(_WINDOWS) /* 1997/10/15 (Wed) 16:27:38 */
if (!StrNCmp(file, "file://localhost/", 17))
file += 17;
else if (!StrNCmp(file, "file:/", 6))
file += 6;
HTUnEscape(file);
#endif /* _WINDOWS */
#endif /* DIRED_SUPPORT */
if ((method = strstr(Line, "Method=")) == NULL)
goto failed;
/*
* Go past "Method=".
*/
method += 7;
method_number = atoi(method);
/*
* Set up the sug_filenames recall buffer.
*/
FnameTotal = (sug_filenames ? HTList_count(sug_filenames) : 0);
recall = ((FnameTotal >= 1) ? RECALL_URL : NORECALL);
FnameNum = FnameTotal;
if (method_number < 0) {
/*
* Write to local file.
*/
_statusline(FILENAME_PROMPT);
retry:
if (sug_file) {
BStrCopy0(buffer, sug_file);
} else {
BStrCopy0(buffer, "");
}
check_recall:
if ((ch = LYgetBString(&buffer, FALSE, 0, recall)) < 0 ||
isBEmpty(buffer) ||
ch == UPARROW_KEY ||
ch == DNARROW_KEY) {
if (recall && ch == UPARROW_KEY) {
if (FirstRecall) {
FirstRecall = FALSE;
/*
* Use the last Fname in the list. - FM
*/
FnameNum = 0;
} else {
/*
* Go back to the previous Fname in the list. - FM
*/
FnameNum++;
}
if (FnameNum >= FnameTotal) {
/*
* Reset the FirstRecall flag, and use sug_file or a blank.
* - FM
*/
FirstRecall = TRUE;
FnameNum = FnameTotal;
_statusline(FILENAME_PROMPT);
goto retry;
} else if ((cp = (char *) HTList_objectAt(sug_filenames,
FnameNum)) != NULL) {
BStrCopy0(buffer, cp);
if (FnameTotal == 1) {
_statusline(EDIT_THE_PREV_FILENAME);
} else {
_statusline(EDIT_A_PREV_FILENAME);
}
goto check_recall;
}
} else if (recall && ch == DNARROW_KEY) {
if (FirstRecall) {
FirstRecall = FALSE;
/*
* Use the first Fname in the list. - FM
*/
FnameNum = FnameTotal - 1;
} else {
/*
* Advance to the next Fname in the list. - FM
*/
FnameNum--;
}
if (FnameNum < 0) {
/*
* Set the FirstRecall flag, and use sug_file or a blank.
* - FM
*/
FirstRecall = TRUE;
FnameNum = FnameTotal;
_statusline(FILENAME_PROMPT);
goto retry;
} else if ((cp = (char *) HTList_objectAt(sug_filenames,
FnameNum)) != NULL) {
BStrCopy0(buffer, cp);
if (FnameTotal == 1) {
_statusline(EDIT_THE_PREV_FILENAME);
} else {
_statusline(EDIT_A_PREV_FILENAME);
}
goto check_recall;
}
}
/*
* Save cancelled.
*/
goto cancelled;
}
BStrCopy(command, buffer);
if (!LYValidateFilename(&buffer, &command))
goto cancelled;
#ifdef HAVE_POPEN
else if (LYIsPipeCommand(buffer->str)) {
/* I don't know how to download to a pipe */
HTAlert(CANNOT_WRITE_TO_FILE);
_statusline(NEW_FILENAME_PROMPT);
FirstRecall = TRUE;
FnameNum = FnameTotal;
goto retry;
}
#endif
/*
* See if it already exists.
*/
switch (LYValidateOutput(buffer->str)) {
case 'Y':
break;
case 'N':
_statusline(NEW_FILENAME_PROMPT);
FirstRecall = TRUE;
FnameNum = FnameTotal;
goto retry;
default:
goto cleanup;
}
/*
* See if we can write to it.
*/
CTRACE((tfp, "LYDownload: filename is %s\n", buffer->str));
SecondS = TRUE;
HTInfoMsg(SAVING);
#ifdef VMS
/*
* Try rename() first. - FM
*/
CTRACE((tfp, "command: rename(%s, %s)\n", file, buffer->str));
if (rename(file, buffer->str)) {
/*
* Failed. Use spawned COPY_COMMAND. - FM
*/
CTRACE((tfp, " FAILED!\n"));
LYCopyFile(file, buffer->str);
} else {
/*
* We don't have the temporary file (it was renamed to a permanent
* file), so set a flag to pop out of the download menu. - FM
*/
LYDidRename = TRUE;
}
chmod(buffer->str, HIDE_CHMOD);
#else /* Unix: */
LYCopyFile(file, buffer->str);
LYRelaxFilePermissions(buffer->str);
#endif /* VMS */
} else {
/*
* Use configured download commands.
*/
BStrCopy0(buffer, "");
for (count = 0, download_command = downloaders;
count < method_number;
count++, download_command = download_command->next) ; /* null body */
/*
* Commands have the form "command %s [etc]" where %s is the filename.
*/
if (download_command->command != NULL) {
/*
* Check for two '%s' and ask for the local filename if there is.
*/
if (HTCountCommandArgs(download_command->command) >= 2) {
_statusline(FILENAME_PROMPT);
again:
if (sug_file) {
BStrCopy0(buffer, sug_file);
} else {
BStrCopy0(buffer, "");
}
check_again:
if ((ch = LYgetBString(&buffer, FALSE, 0, recall)) < 0 ||
isBEmpty(buffer) ||
ch == UPARROW_KEY ||
ch == DNARROW_KEY) {
if (recall && ch == UPARROW_KEY) {
if (FirstRecall) {
FirstRecall = FALSE;
/*
* Use the last Fname in the list. - FM
*/
FnameNum = 0;
} else {
/*
* Go back to the previous Fname in the list. - FM
*/
FnameNum++;
}
if (FnameNum >= FnameTotal) {
/*
* Reset the FirstRecall flag, and use sug_file or
* a blank. - FM
*/
FirstRecall = TRUE;
FnameNum = FnameTotal;
_statusline(FILENAME_PROMPT);
goto again;
} else if ((cp = (char *) HTList_objectAt(sug_filenames,
FnameNum))
!= NULL) {
BStrCopy0(buffer, cp);
if (FnameTotal == 1) {
_statusline(EDIT_THE_PREV_FILENAME);
} else {
_statusline(EDIT_A_PREV_FILENAME);
}
goto check_again;
}
} else if (recall && ch == DNARROW_KEY) {
if (FirstRecall) {
FirstRecall = FALSE;
/*
* Use the first Fname in the list. - FM
*/
FnameNum = FnameTotal - 1;
} else {
/*
* Advance to the next Fname in the list. - FM
*/
FnameNum--;
}
if (FnameNum < 0) {
/*
* Set the FirstRecall flag, and use sug_file or a
* blank. - FM
*/
FirstRecall = TRUE;
FnameNum = FnameTotal;
_statusline(FILENAME_PROMPT);
goto again;
} else if ((cp = (char *) HTList_objectAt(sug_filenames,
FnameNum))
!= NULL) {
BStrCopy0(buffer, cp);
if (FnameTotal == 1) {
_statusline(EDIT_THE_PREV_FILENAME);
} else {
_statusline(EDIT_A_PREV_FILENAME);
}
goto check_again;
}
}
/*
* Download cancelled.
*/
goto cancelled;
}
if (no_dotfiles || !show_dotfiles) {
if (*LYPathLeaf(buffer->str) == '.') {
HTAlert(FILENAME_CANNOT_BE_DOT);
_statusline(NEW_FILENAME_PROMPT);
goto again;
}
}
/*
* Cancel if the user entered "/dev/null" on Unix, or an "nl:"
* path on VMS. - FM
*/
if (LYIsNullDevice(buffer->str)) {
goto cancelled;
}
SecondS = TRUE;
}
/*
* The following is considered a bug by the community. If the
* command only takes one argument on the command line, then the
* suggested file name is not used. It actually is not a bug at
* all and does as it should, putting both names on the command
* line.
*/
count = 1;
HTAddParam(&the_command, download_command->command, count, file);
if (HTCountCommandArgs(download_command->command) > 1)
HTAddParam(&the_command, download_command->command, ++count, buffer->str);
HTEndParam(&the_command, download_command->command, count);
} else {
HTAlert(MISCONF_DOWNLOAD_COMMAND);
goto failed;
}
CTRACE((tfp, "command: %s\n", the_command));
stop_curses();
LYSystem(the_command);
FREE(the_command);
start_curses();
/* don't remove(file); */
}
if (SecondS == TRUE) {
#ifdef VMS
if (0 == strncasecomp(buffer->str, "sys$disk:", 9)) {
if (0 == StrNCmp((buffer->str + 9), "[]", 2)) {
HTAddSugFilename(buffer->str + 11);
} else {
HTAddSugFilename(buffer->str + 9);
}
} else {
HTAddSugFilename(buffer->str);
}
#else
HTAddSugFilename(buffer->str);
#endif /* VMS */
}
goto cleanup;
failed:
HTAlert(CANNOT_DOWNLOAD_FILE);
goto cleanup;
cancelled:
HTInfoMsg(CANCELLING);
cleanup:
FREE(Line);
BStrFree(buffer);
return;
}
int HTQueue_count(HTList *me)
{
return HTList_count(me);
}
PRIVATE void robot_profile (const char * AppName, const char * AppVersion)
{
/* If the Library is not already initialized then do it */
if (!HTLib_isInitialized()) HTLibInit(AppName, AppVersion);
if (!converters) {
converters = HTList_new();
/* Register the default set of converters including the HTML parser */
HTConverterInit(converters);
HTMLInit(converters);
/* Set the converters as global converters for all requests */
HTFormat_setConversion(converters);
}
if (!transfer_encodings) {
transfer_encodings = HTList_new();
/* Register the default set of transfer encoders and decoders */
HTTransferEncoderInit(transfer_encodings);
HTFormat_setTransferCoding(transfer_encodings);
}
if (!content_encodings) {
content_encodings = HTList_new();
/* Register the default set of content encoders and decoders */
HTContentEncoderInit(content_encodings);
if (HTList_count(content_encodings) > 0)
HTFormat_setContentCoding(content_encodings);
else {
HTList_delete(content_encodings);
content_encodings = NULL;
}
}
/* Register the default set of transport protocols */
HTTransportInit();
/* Register the default set of application protocol modules */
HTProtocolInit();
/* Initialize suffix bindings for local files */
HTBind_init();
/* Set max number of sockets we want open simultanously */
HTNet_setMaxSocket(32);
/* Register some default set of BEFORE and AFTER filters */
HTNet_addBefore(HTRuleFilter, NULL, NULL, HT_FILTER_MIDDLE);
HTNet_addBefore(HTProxyFilter, NULL, NULL, HT_FILTER_MIDDLE);
HTNet_addAfter(HTInfoFilter, NULL, NULL, HT_ALL, HT_FILTER_LATE);
/* Get any proxy or gateway environment variables */
HTProxy_getEnvVar();
/* Register the default set of MIME header parsers */
HTMIMEInit();
/* Register the default set of file suffix bindings */
HTFileInit();
/* Register the default set of Icons for directory listings */
HTIconInit(NULL);
/* Register some default messages and dialog functions */
if (HTAlert_interactive()) {
HTAlert_add(HTError_print, HT_A_MESSAGE);
HTAlert_add(HTConfirm, HT_A_CONFIRM);
HTAlert_add(HTPrompt, HT_A_PROMPT);
HTAlert_add(HTPromptPassword, HT_A_SECRET);
HTAlert_add(HTPromptUsernameAndPassword, HT_A_USER_PW);
}
HTAlert_setInteractive(YES);
}
PRIVATE void client_profile (const char * AppName, const char * AppVersion,
BOOL preemptive, BOOL cache, BOOL HTMLParser)
{
/* If the Library is not already initialized then do it */
if (!HTLib_isInitialized()) HTLibInit(AppName, AppVersion);
/* Register the default set of messages and dialog functions */
HTAlertInit();
HTAlert_setInteractive(YES);
if (!converters) {
converters = HTList_new();
/* Register the default set of converters */
HTConverterInit(converters);
/* Register the default libwww HTML parser */
if (HTMLParser) HTMLInit(converters);
/* Set the converters as global converters for all requests */
HTFormat_setConversion(converters);
}
if (!transfer_encodings) {
transfer_encodings = HTList_new();
/* Register the default set of transfer encoders and decoders */
HTTransferEncoderInit(transfer_encodings);
HTFormat_setTransferCoding(transfer_encodings);
}
if (!content_encodings) {
content_encodings = HTList_new();
/* Register the default set of content encoders and decoders */
HTContentEncoderInit(content_encodings);
if (HTList_count(content_encodings) > 0)
HTFormat_setContentCoding(content_encodings);
else {
HTList_delete(content_encodings);
content_encodings = NULL;
}
}
/* Register the default set of transport protocols */
HTTransportInit();
/* Register the default set of application protocol modules */
if (preemptive)
HTProtocolPreemptiveInit();
else
HTProtocolInit();
/* Initialize suffix bindings for local files */
HTBind_init();
/* Set max number of sockets we want open simultanously */
HTNet_setMaxSocket(32);
/* The persistent cache does not work in preemptive mode */
if (cache) HTCacheInit(NULL, 20);
/* Register the default set of BEFORE and AFTER filters */
HTNetInit();
/* Set up the default set of Authentication schemes */
HTAAInit();
/* Get any proxy or gateway environment variables */
HTProxy_getEnvVar();
/* Register the default set of MIME header parsers */
HTMIMEInit();
/* Register the default set of file suffix bindings */
HTFileInit();
/* Register the default set of Icons for directory listings */
HTIconInit(NULL);
}
/*
* This procedure outputs the Visited Links list into a temporary file. - FM
* Returns links's number to make active (1-based), or 0 if not required.
*/
int LYShowVisitedLinks(char **newfile)
{
static char tempfile[LY_MAXPATH] = "\0";
char *Title = NULL;
char *Address = NULL;
int x, tot;
FILE *fp0;
VisitedLink *vl;
HTList *cur = Visited_Links;
int offset;
int ret = 0;
const char *arrow, *post_arrow;
if (!cur)
return (-1);
if ((fp0 = InternalPageFP(tempfile, TRUE)) == 0)
return (-1);
LYLocalFileToURL(newfile, tempfile);
LYRegisterUIPage(*newfile, UIP_VLINKS);
LYforce_HTML_mode = TRUE; /* force this file to be HTML */
LYforce_no_cache = TRUE; /* force this file to be new */
BeginInternalPage(fp0, VISITED_LINKS_TITLE, VISITED_LINKS_HELP);
#ifndef NO_OPTION_FORMS
fprintf(fp0, "<form action=\"%s\" method=\"post\">\n", STR_LYNXOPTIONS);
LYMenuVisitedLinks(fp0, FALSE);
fprintf(fp0, "<input type=\"submit\" value=\"Accept Changes\">\n");
fprintf(fp0, "</form>\n");
fprintf(fp0, "<P>\n");
#endif
fprintf(fp0, "<pre>\n");
fprintf(fp0, "<em>%s</em>\n",
gettext("You visited (POSTs, bookmark, menu and list files excluded):"));
if (Visited_Links_As & VISITED_LINKS_REVERSE)
tot = x = HTList_count(Visited_Links);
else
tot = x = -1;
if (Visited_Links_As & VISITED_LINKS_AS_TREE) {
vl = First_tree;
} else if (Visited_Links_As & VISITED_LINKS_AS_LATEST) {
if (Visited_Links_As & VISITED_LINKS_REVERSE)
vl = Latest_last.prev_latest;
else
vl = Latest_first.next_latest;
if (vl == &Latest_last || vl == &Latest_first)
vl = NULL;
} else {
if (Visited_Links_As & VISITED_LINKS_REVERSE)
vl = Last_by_first;
else
vl = (VisitedLink *) HTList_nextObject(cur);
}
while (NULL != vl) {
/*
* The number of the document (most recent highest), its title in a
* link, and its address. - FM
*/
post_arrow = arrow = "";
if (Visited_Links_As & VISITED_LINKS_REVERSE)
x--;
else
x++;
if (vl == PrevActiveVisitedLink) {
if (Visited_Links_As & VISITED_LINKS_REVERSE)
ret = tot - x + 2;
else
ret = x + 3;
}
if (vl == PrevActiveVisitedLink) {
post_arrow = "<A NAME=current></A>";
/* Otherwise levels 0 and 1 look the same when with arrow: */
arrow = (vl->level && (Visited_Links_As & VISITED_LINKS_AS_TREE))
? "==>" : "=>";
StrAllocCat(*newfile, "#current");
}
if (Visited_Links_As & VISITED_LINKS_AS_TREE) {
offset = 2 * vl->level;
if (offset > 24)
offset = (offset + 24) / 2;
if (offset > LYcols * 3 / 4)
offset = LYcols * 3 / 4;
} else
offset = (x > 99 ? 0 : x < 10 ? 2 : 1);
if (non_empty(vl->title)) {
StrAllocCopy(Title, vl->title);
LYEntify(&Title, TRUE);
LYTrimLeading(Title);
LYTrimTrailing(Title);
if (*Title == '\0')
StrAllocCopy(Title, NO_TITLE);
} else {
StrAllocCopy(Title, NO_TITLE);
}
if (non_empty(vl->address)) {
StrAllocCopy(Address, vl->address);
LYEntify(&Address, FALSE);
fprintf(fp0,
"%-*s%s<em>%d</em>. <tab id=t%d><a href=\"%s\">%s</a>\n",
offset, arrow, post_arrow,
x, x, Address, Title);
} else {
fprintf(fp0,
"%-*s%s<em>%d</em>. <tab id=t%d><em>%s</em>\n",
offset, arrow, post_arrow,
x, x, Title);
}
if (Address != NULL) {
StrAllocCopy(Address, vl->address);
LYEntify(&Address, TRUE);
}
fprintf(fp0, "<tab to=t%d>%s\n", x,
((Address != NULL) ? Address : gettext("(no address)")));
if (Visited_Links_As & VISITED_LINKS_AS_TREE)
vl = vl->next_tree;
else if (Visited_Links_As & VISITED_LINKS_AS_LATEST) {
if (Visited_Links_As & VISITED_LINKS_REVERSE)
vl = vl->prev_latest;
else
vl = vl->next_latest;
if (vl == &Latest_last || vl == &Latest_first)
vl = NULL;
} else {
if (Visited_Links_As & VISITED_LINKS_REVERSE)
vl = vl->prev_first;
else
vl = (VisitedLink *) HTList_nextObject(cur);
}
}
fprintf(fp0, "</pre>\n");
EndInternalPage(fp0);
LYCloseTempFP(fp0);
FREE(Title);
FREE(Address);
return (ret);
}
HTStream *HTCompressed( HTPresentation *pres, HTParentAnchor *anchor, HTStream *sink )
{
int eax;
HTStream *me;
HTFormat format;
char *type = 0;
HTPresentation *Pres = 0;
HTPresentation *Pnow = 0;
int n, i;
BOOLEAN can_present = 0;
char fnam[256];
char temp[256];
char *suffix;
char *uncompress_mask = 0;
char *compress_suffix = "";
char *middle;
if ( anchor == 0 || anchor->content_encoding == 0 || anchor->content_type == 0 )
{
format = HTAtom_for( "application/octet-stream" );
me = HTStreamStack( format, &pres->rep_out, &sink->isa->name[0], anchor );
return me;
}
else
{
n = HTList_count( HTPresentations );
i = 0;
for ( ; i < n; i++ )
{
Pnow = (HTPresentation*)HTList_objectAt( HTPresentations, i );
if ( strcasecomp( (char*)Pnow->rep_out, &anchor->content_type ) == 0 && Pnow->rep_out == HTAtom_for( "www/present" ) )
{
char *program = "";
if ( Pres == 0 )
Pres = Pnow;
else
if ( Pres->quality <= Pnow->quality )
Pres = Pnow;
can_present = 1;
switch ( HTEncodingToCompressType( &anchor->content_encoding ) )
{
case 2:
program = HTGetProgramPath( 6 );
if ( program )
{
HTSACopy( &uncompress_mask, program );
HTSACat( &uncompress_mask, " -d --no-name %s" );
compress_suffix = "gz";
}
break;
case 4:
program = HTGetProgramPath( 7 );
if ( program )
{
HTSACopy( &uncompress_mask, program );
HTSACat( &uncompress_mask, " %s" );
compress_suffix = "zz";
}
break;
case 3:
program = HTGetProgramPath( 1 );
if ( program )
{
HTSACopy( &uncompress_mask, program );
HTSACat( &uncompress_mask, " -d %s" );
compress_suffix = "bz2";
}
break;
case 1:
program = HTGetProgramPath( 19 );
if ( program )
{
HTSACopy( &uncompress_mask, program );
HTSACat( &uncompress_mask, " %s" );
compress_suffix = "Z";
}
break;
}
}
// i++;
}
if ( can_present == 0 || uncompress_mask == 0 || strchr( &anchor->content_type, ';' ) || HTOutputFormat == HTAtom_for( "www/download" ) || !strcasecomp( &pres->rep_out->name, "www/download" ) || ( traversal && strcasecomp( &anchor->content_type, "text/html" ) && strcasecomp( &anchor->content_type, "text/plain" ) ) )
{
if ( strchr( &anchor->content_encoding, '/' ) == 0 )
{
if ( strncasecomp( &anchor->content_encoding, "x-", 2 ) == 0 )
HTSACopy( &type, "application/" );
else
HTSACopy( &type, "application/x-" );
HTSACat( &type, &anchor->content_encoding );
}
else
HTSACopy( &type, &anchor->content_encoding );
format = HTAtom_for( type );
if ( type )
{
free( type );
type = 0;
}
if ( uncompress_mask )
{
free( uncompress_mask );
uncompress_mask = 0;
}
me = HTStreamStack( format, &pres->rep_out, &sink->isa->name[0], anchor );
return me;
}
else
{
me = calloc( 1, sizeof( HTStream ) );
if ( me == 0 )
outofmem( "./HTFWriter.c", "HTCompressed" );
me->isa->name[0] = HTFWriter.name;
me->input_format = pres->rep->next;
me->output_format = pres->rep_out;
me->anchor = anchor;
me->sink = sink;
if ( anchor->FileCache )
{
LYRemoveTemp( &anchor->FileCache );
if ( anchor->FileCache )
{
free( &anchor->FileCache );
anchor->FileCache = 0;
}
}
middle = 0;
if ( strcasecomp( &anchor->content_type, "text/html" ) == 0 )
{
middle = ".html";
middle++;
}
else
{
if ( strncasecomp( &anchor->content_type, "text/", 5 ) == 0 )
middle = "txt";
else
{
if ( strncasecomp( &anchor->content_type, "application/", 12 ) == 0 )
middle = "bin";
else
{
suffix = HTFileSuffix( HTAtom_for( &anchor->content_type ), 0 );
if ( suffix && suffix[0] == '.' )
middle = &suffix[1];
}
}
}
temp[0] = 0;
if ( middle )
{
memcpy( temp[0] + strlen( temp ) );
strcat( temp, middle );
strcat( temp, "." );
}
strcat( temp, compress_suffix );
me->fp = LYOpenTemp( fnam, temp, "wb" );
if ( me->fp == 0 )
{
HTAlert( gettext( "Can't open temporary file!" ) );
if ( uncompress_mask )
{
free( uncompress_mask );
uncompress_mask = 0;
}
if ( me )
{
free( me );
me = 0;
}
return 0;
}
else
{
if ( dump_output_immediately == 0 && traversal == 0 && ( Pres->quality < 999.000000000000 || ( no_exec == 0 && ( local_exec || ( local_exec_on_local_files && ( LYJumpFileURL || strncmp( &anchor->address, "file://localhost", 16 ) == 0 ) ) ) ) ) )
HTSACopy( &me->viewer_command, &Pres->command );
if ( compress_suffix[0] == 'g' && me->viewer_command == 0 )
HTSACopy( &me->end_command, "" );
else
{
*(int*)&me->end_command = 0;
HTAddParam( &me->end_command, uncompress_mask, 1, fnam );
HTEndParam( &me->end_command, uncompress_mask, 1 );
}
if ( uncompress_mask )
{
free( uncompress_mask );
uncompress_mask = 0;
}
*(int*)&me->remove_command = 0;
HTAddParam( &me->remove_command, "%s", 1, fnam );
HTEndParam( &me->remove_command, "%s", 1 );
HTSACopy( &anchor->FileCache, fnam );
return me;
}
}
}
}
static int RecallFilename(bstring **filename,
BOOLEAN *first,
int *now,
int *total,
int flag)
{
int ch;
char *cp;
RecallType recall;
/*
* Set up the sug_filenames recall buffer.
*/
if (*now < 0) {
*total = (sug_filenames ? HTList_count(sug_filenames) : 0);
*now = *total;
}
recall = ((*total >= 1) ? RECALL_URL : NORECALL);
if ((ch = LYgetBString(filename, FALSE, 0, recall)) < 0 ||
isBEmpty(*filename) || ch == UPARROW_KEY || ch == DNARROW_KEY) {
if (recall && ch == UPARROW_KEY) {
if (*first) {
*first = FALSE;
/*
* Use the last Fname in the list. - FM
*/
*now = 0;
} else {
/*
* Go back to the previous Fname in the list. - FM
*/
*now += 1;
}
if (*now >= *total) {
/*
* Reset the *first flag, and use sug_file or a blank. -
* FM
*/
*first = TRUE;
*now = *total;
_statusline(FILENAME_PROMPT);
return FN_INIT;
} else if ((cp = (char *) HTList_objectAt(sug_filenames,
*now)) != NULL) {
BStrCopy0(*filename, cp);
if (*total == 1) {
_statusline(EDIT_THE_PREV_FILENAME);
} else {
_statusline(EDIT_A_PREV_FILENAME);
}
return FN_READ;
}
} else if (recall && ch == DNARROW_KEY) {
if (*first) {
*first = FALSE;
/*
* Use the first Fname in the list. - FM
*/
*now = *total - 1;
} else {
/*
* Advance to the next Fname in the list. - FM
*/
*now -= 1;
}
if (*now < 0) {
/*
* Set the *first flag, and use sug_file or a blank. - FM
*/
*first = TRUE;
*now = *total;
_statusline(FILENAME_PROMPT);
return FN_INIT;
} else if ((cp = (char *) HTList_objectAt(sug_filenames,
*now)) != NULL) {
BStrCopy0(*filename, cp);
if (*total == 1) {
_statusline(EDIT_THE_PREV_FILENAME);
} else {
_statusline(EDIT_A_PREV_FILENAME);
}
return FN_READ;
}
}
/*
* Operation cancelled.
*/
if (flag == PRINT_FLAG)
HTInfoMsg(SAVE_REQUEST_CANCELLED);
else if (flag == GENERIC_FLAG)
return FN_QUIT;
return FN_QUIT;
}
return FN_DONE;
}
/* Look up a presentation
** ----------------------
**
** If fill_in is NULL, only look for an exact match.
** If a wildcard match is made, *fill_in is used to store
** a possibly modified presentation, and a pointer to it is
** returned. For an exact match, a pointer to the presentation
** in the HTPresentations list is returned. Returns NULL if
** nothing found. - kw
**
*/
PRIVATE HTPresentation * HTFindPresentation ARGS3(
HTFormat, rep_in,
HTFormat, rep_out,
HTPresentation*, fill_in)
{
HTAtom * wildcard = NULL; /* = HTAtom_for("*"); lookup when needed - kw */
CTRACE((tfp, "HTFormat: Looking up presentation for %s to %s\n",
HTAtom_name(rep_in), HTAtom_name(rep_out)));
/* don't do anymore do it in the Lynx code at startup LJM */
/* if (!HTPresentations) HTFormatInit(); */ /* set up the list */
{
int n = HTList_count(HTPresentations);
int i;
HTPresentation * pres, *match,
*strong_wildcard_match=0,
*weak_wildcard_match=0,
*last_default_match=0,
*strong_subtype_wildcard_match=0;
for (i = 0; i < n; i++) {
pres = (HTPresentation *)HTList_objectAt(HTPresentations, i);
if (pres->rep == rep_in) {
if (pres->rep_out == rep_out) {
CTRACE((tfp, "FindPresentation: found exact match: %s\n",
HTAtom_name(pres->rep)));
return pres;
} else if (!fill_in) {
continue;
} else {
if (!wildcard) wildcard = WWW_WILDCARD_REP_OUT;
if (pres->rep_out == wildcard) {
if (!strong_wildcard_match)
strong_wildcard_match = pres;
/* otherwise use the first one */
CTRACE((tfp, "StreamStack: found strong wildcard match: %s\n",
HTAtom_name(pres->rep)));
}
}
} else if (!fill_in) {
continue;
} else if (half_match(HTAtom_name(pres->rep),
HTAtom_name(rep_in))) {
if (pres->rep_out == rep_out) {
if (!strong_subtype_wildcard_match)
strong_subtype_wildcard_match = pres;
/* otherwise use the first one */
CTRACE((tfp, "StreamStack: found strong subtype wildcard match: %s\n",
HTAtom_name(pres->rep)));
}
}
if (pres->rep == WWW_SOURCE) {
if (pres->rep_out == rep_out) {
if (!weak_wildcard_match)
weak_wildcard_match = pres;
/* otherwise use the first one */
CTRACE((tfp, "StreamStack: found weak wildcard match: %s\n",
HTAtom_name(pres->rep_out)));
} else if (!last_default_match) {
if (!wildcard) wildcard = WWW_WILDCARD_REP_OUT;
if (pres->rep_out == wildcard)
last_default_match = pres;
/* otherwise use the first one */
}
}
}
match = strong_subtype_wildcard_match ? strong_subtype_wildcard_match :
strong_wildcard_match ? strong_wildcard_match :
weak_wildcard_match ? weak_wildcard_match :
last_default_match;
if (match) {
*fill_in = *match; /* Specific instance */
fill_in->rep = rep_in; /* yuk */
fill_in->rep_out = rep_out; /* yuk */
return fill_in;
}
}
return NULL;
}
PUBLIC HTFormat HTFileFormat ARGS4 (
char *, filename,
HTAtom **, pencoding,
HTAtom *, default_type,
int *, compressed)
{
HTSuffix *suff;
int n, i, lf;
if (!filename)
return NULL;
/* Make a copy to hack and slash. */
filename = strdup (filename);
lf = strlen (filename);
/* Step backward through filename, looking for '?'. */
for (i = lf - 1; i >= 0; i--)
{
if (filename[i] == '?')
{
/* Clip query. */
filename[i] = '\0';
/* Get new strlen, since we just changed it. */
lf = strlen (filename);
goto ok_ready;
}
}
*compressed = 0;
/* Check for .Z and .z. */
if (lf > 2)
{
if (strcmp (&(filename[lf-2]), ".Z") == 0)
{
*compressed = COMPRESSED_BIGZ;
filename[lf-2] = '\0';
lf = strlen (filename);
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "[HTFileFormat] Got hit on .Z; filename '%s'\n",
filename);
#endif
goto ok_ready;
}
else if (strcmp (&(filename[lf-2]), ".z") == 0)
{
*compressed = COMPRESSED_GNUZIP;
filename[lf-2] = '\0';
lf = strlen (filename);
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "[HTFileFormat] Got hit on .z; filename '%s'\n",
filename);
#endif
goto ok_ready;
}
else if (lf > 3)
{
if (strcmp (&(filename[lf-3]), ".gz") == 0)
{
*compressed = COMPRESSED_GNUZIP;
filename[lf-3] = '\0';
lf = strlen (filename);
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr,
"[HTFileFormat] Got hit on .gz; filename '%s'\n",
filename);
#endif
goto ok_ready;
}
}
}
ok_ready:
if (!HTSuffixes)
HTFileInit();
*pencoding = NULL;
n = HTList_count(HTSuffixes);
for(i=0; i<n; i++)
{
int ls;
suff = HTList_objectAt(HTSuffixes, i);
ls = strlen(suff->suffix);
if ((ls <= lf) && 0==my_strcasecmp(suff->suffix, filename + lf - ls))
{
int j;
*pencoding = suff->encoding;
if (suff->rep)
goto done;
for(j=0; j<n; j++)
{ /* Got encoding, need representation */
int ls2;
suff = HTList_objectAt(HTSuffixes, j);
ls2 = strlen(suff->suffix);
if ((ls <= lf) &&
0==my_strncasecmp(suff->suffix, filename + lf - ls -ls2, ls2))
if (suff->rep)
goto done;
}
}
}
suff = strchr(filename, '.') ? /* Unknown suffix */
( unknown_suffix.rep ? &unknown_suffix : &no_suffix)
: &no_suffix;
/* For now, assuming default is 8bit text/plain.
We also want default 8bit text/html for http connections. */
/* set default encoding unless found with suffix already */
if (!*pencoding) *pencoding = suff->encoding ? suff->encoding
: HTAtom_for("8bit");
done:
/* Free our copy. */
free (filename);
return suff->rep ? suff->rep : default_type;
}
HTAnchor * HTHistory_read
ARGS1 (int,number)
{
return HTList_objectAt (history, HTList_count (history) - number);
}
PUBLIC int HTLoadHTTP ARGS4 (
char *, arg,
HTParentAnchor *, anAnchor,
HTFormat, format_out,
HTStream*, sink)
{
int s; /* Socket number for returned data */
char *command; /* The whole command */
char *eol; /* End of line if found */
char *start_of_data; /* Start of body of reply */
int status; /* tcp return */
int bytes_already_read;
char crlf[3]; /* A CR LF equivalent string */
HTStream *target; /* Unconverted data */
HTFormat format_in; /* Format arriving in the message */
char *line_buffer;
char *line_kept_clean;
BOOL extensions; /* Assume good HTTP server */
int compressed;
char line[2048]; /* bumped up to cover Kerb huge headers */
int length, doing_redirect, rv;
int already_retrying = 0;
int return_nothing;
int i;
int keepingalive = 0;
char *p;
/*SWP*/
int statusError=0;
if (!arg)
{
status = -3;
HTProgress ("Bad request.");
goto done;
}
if (!*arg)
{
status = -2;
HTProgress ("Bad request.");
goto done;
}
sprintf(crlf, "%c%c", CR, LF);
/* At this point, we're talking HTTP/1.0. */
extensions = YES;
try_again:
/* All initializations are moved down here from up above,
so we can start over here... */
eol = 0;
bytes_already_read = 0;
length = 0;
doing_redirect = 0;
compressed = 0;
target = NULL;
line_buffer = NULL;
line_kept_clean = NULL;
return_nothing = 0;
/* okay... addr looks like http://hagbard.ncsa.uiuc.edu/blah/etc.html
lets crop it at the 3rd '/' */
for(p = arg,i=0;*p && i!=3;p++)
if(*p=='/') i++;
if(i==3)
i = p-arg; /* i = length not counting last '/' */
else
i = 0;
if((lsocket != -1) && i && addr && !strncmp(addr,arg,i)){
/* keepalive is active and addresses match -- try the old socket */
s = lsocket;
keepingalive = 1; /* flag in case of network error due to server timeout*/
lsocket = -1; /* prevent looping on failure */
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr,
"HTTP: Keep-Alive reusing '%s'\n",addr);
#endif
/*
if (addr && *addr) {
sprintf(tmpbuf,"Reusing socket from %s.",addr);
HTProgress(tmpbuf);
}
*/
} else {
if(addr) free(addr);
/* save the address for next time around */
addr = malloc(i+1);
strncpy(addr,arg,i);
*(addr+i)=0;
keepingalive = 0; /* just normal opening of the socket */
if(lsocket != -1) NETCLOSE(lsocket); /* no socket leaks here */
lsocket = -1; /*dont assign until we know the server says okay */
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr,
"HTTP: Keep-Alive saving '%s'\n",addr);
#endif
/*
if (addr && *addr) {
sprintf(tmpbuf,"Saving %s for possible socket reuse.",addr);
HTProgress(tmpbuf);
}
*/
}
if (!keepingalive) {
status = HTDoConnect (arg, "HTTP", TCP_PORT, &s);
if (status == HT_INTERRUPTED){
/* Interrupt cleanly. */
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr,
"HTTP: Interrupted on connect; recovering cleanly.\n");
#endif
HTProgress ("Connection interrupted.");
/* status already == HT_INTERRUPTED */
goto done;
}
if (status < 0) {
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf(stderr,
"HTTP: Unable to connect to remote host for `%s' (errno = %d).\n", arg, errno);
#endif
HTProgress ("Unable to connect to remote host.");
status = HT_NO_DATA;
goto done;
}
}
/* Ask that node for the document,
** omitting the host name & anchor
*/
{
char * p1 = HTParse(arg, "", PARSE_PATH|PARSE_PUNCTUATION);
command = malloc(5 + strlen(p1)+ 2 + 31);
if (do_post && !do_put)
strcpy(command, "POST ");
else if (do_post && do_put)
strcpy(command, "PUT ");
else if (do_head)
strcpy(command, "HEAD ");
else if (do_meta)
strcpy(command, "META ");
else
strcpy(command, "GET ");
/*
* For a gateway, the beginning '/' on the request must
* be stripped before appending to the gateway address.
*/
if ((using_gateway)||(using_proxy)) {
strcat(command, p1+1);
}
else
strcat(command, p1);
free(p1);
}
if (extensions)
{
strcat(command, " ");
strcat(command, HTTP_VERSION);
}
strcat(command, crlf); /* CR LF, as in rfc 977 */
if (extensions)
{
#ifdef SAM_NOT_YET
/* SAM This produces an absolutely huge Accept: line. While
there is probably a better way to turn this off, just
compiling it out works for now.
*/
int n, i;
if (!HTPresentations) HTFormatInit();
n = HTList_count(HTPresentations);
begin_ptr=command+strlen(command);
env_length=0;
sprintf(line, "Accept:");
env_length+=strlen(line);
StrAllocCat(command, line);
/* KCMS Accept Header - swp */
if (KCMS_Return_Format==JPEG) {
sprintf(line," image/x-pcd-jpeg,");
StrAllocCat(command, line);
env_length+=strlen(line);
}
else if (KCMS_Return_Format==JYCC) {
sprintf(line," image/x-pcd-jycc,");
StrAllocCat(command, line);
env_length+=strlen(line);
}
else if (KCMS_Return_Format==GIF) {
sprintf(line," image/x-pcd-gif,");
StrAllocCat(command, line);
env_length+=strlen(line);
}
for(i=0; i<n; i++)
{
HTPresentation * pres = HTList_objectAt(HTPresentations, i);
if (pres->rep_out == WWW_PRESENT)
{
sprintf(line, " %s,",HTAtom_name(pres->rep));
env_length+=strlen(line);
StrAllocCat(command, line);
if (env_length>200) {
if ((tmp_ptr=strrchr(command,','))!=NULL) {
*tmp_ptr='\0';
}
sprintf(line, "%c%c",CR,LF);
StrAllocCat(command, line);
begin_ptr=command+strlen(command);
sprintf(line, "Accept:");
env_length=strlen(line);
StrAllocCat(command, line);
}
}
}
/* This gets rid of the last comma. */
if ((tmp_ptr=strrchr(command,','))!=NULL) {
*tmp_ptr='\0';
sprintf(line, "%c%c",CR,LF);
StrAllocCat(command, line);
}
else { /* No accept stuff...get rid of "Accept:" */
begin_ptr='\0';
}
#endif
/* if reloading, send no-cache pragma to proxy servers. --swp */
/* original patch from Ari L. <*****@*****.**> */
if (reloading) {
sprintf(line, "Pragma: no-cache%c%c", CR, LF);
StrAllocCat(command, line);
}
/*This is just used for "not" sending this header on a proxy request*/
if (useKeepAlive) {
sprintf(line, "Connection: keep-alive%c%c", CR, LF);
StrAllocCat(command, line);
}
if (sendAgent) {
sprintf(line, "User-Agent: %s%c%c",agent[selectedAgent],CR,LF);
/*
sprintf(line, "User-Agent: %s/%s libwww/%s%c%c",
HTAppName ? HTAppName : "unknown",
HTAppVersion ? HTAppVersion : "0.0",
HTLibraryVersion, CR, LF);
*/
StrAllocCat(command, line);
}
if (sendReferer) {
/* HTTP Referer field, specifies back-link URL - amb */
if (HTReferer) {
sprintf(line, "Referer: %s%c%c", HTReferer, CR, LF);
StrAllocCat(command, line);
HTReferer = NULL;
}
}
{
char *tmp,*startPtr,*endPtr;
/* addr is always in URL form */
if (addr && !using_proxy && !using_gateway) {
tmp=strdup(addr);
startPtr=strchr(tmp,'/');
if (startPtr) {
startPtr+=2; /*now at begining of hostname*/
if (*startPtr) {
endPtr=strchr(startPtr,':');
if (!endPtr) {
endPtr=strchr(startPtr,'/');
if (endPtr && *endPtr) {
*endPtr='\0';
}
}
else {
*endPtr='\0';
}
sprintf(line, "Host: %s%c%c", startPtr, CR, LF);
StrAllocCat(command, line);
free(tmp);
tmp=startPtr=endPtr=NULL;
}
}
}
else if (using_proxy || using_gateway) {
sprintf(line, "Host: %s%c%c", proxy_host_fix, CR, LF);
StrAllocCat(command, line);
}
}
/* SWP -- 7/10/95 */
/* HTTP Extension headers */
/* Domain Restriction */
sprintf(line,"Extension: Notify-Domain-Restriction%c%c",CR,LF);
StrAllocCat(command,line);
/* BJS -- 12/05/95 -- allow arbitrary headers sent from browser */
if(extra_headers){
int h;
for(h=0;extra_headers[h];h++){
sprintf(line,"%s%c%c",extra_headers[h],CR,LF);
StrAllocCat(command,line);
}
}
{
char *docname;
char *hostname;
char *colon;
int portnumber;
char *auth;
docname = HTParse(arg, "", PARSE_PATH);
hostname = HTParse(arg, "", PARSE_HOST);
if (hostname &&
NULL != (colon = strchr(hostname, ':')))
{
*(colon++) = '\0'; /* Chop off port number */
portnumber = atoi(colon);
}
else portnumber = 80;
if (NULL!=(auth=HTAA_composeAuth(hostname, portnumber, docname)))
{
sprintf(line, "%s%c%c", auth, CR, LF);
StrAllocCat(command, line);
}
#ifndef DISABLE_TRACE
if (www2Trace)
{
if (auth)
fprintf(stderr, "HTTP: Sending authorization: %s\n", auth);
else
fprintf(stderr, "HTTP: Not sending authorization (yet)\n");
}
#endif
FREE(hostname);
FREE(docname);
}
}
if (do_post && !do_put)
{
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Doing post, content-type '%s'\n",
post_content_type);
#endif
sprintf (line, "Content-type: %s%c%c",
post_content_type ? post_content_type : "lose", CR, LF);
StrAllocCat(command, line);
{
int content_length;
if (!post_data)
content_length = 4; /* 4 == "lose" :-) */
else
content_length = strlen (post_data);
sprintf (line, "Content-length: %d%c%c",
content_length, CR, LF);
StrAllocCat(command, line);
}
StrAllocCat(command, crlf); /* Blank line means "end" */
if (post_data)
StrAllocCat(command, post_data);
else
StrAllocCat(command, "lose");
}
else if (do_post && do_put)
{
sprintf (line, "Content-length: %d%c%c",
put_file_size, CR, LF);
StrAllocCat(command, line);
StrAllocCat(command, crlf); /* Blank line means "end" */
}
else {
StrAllocCat(command, crlf); /* Blank line means "end" */
}
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "Writing:\n%s----------------------------------\n",
command);
#endif
/*
HTProgress ("Sending HTTP request.");
*/
status = NETWRITE(s, command, (int)strlen(command));
if (do_post && do_put) {
char buf[BUFSIZ];
int upcnt=0,n;
while (status>0) {
n=fread(buf,1,BUFSIZ-1,put_fp);
upcnt+= status = NETWRITE(s, buf, n);
#ifndef DISABLE_TRACE
if (www2Trace) {
fprintf(stderr,"[%d](%d) %s",status,n,buf);
}
#endif
if (feof(put_fp)) {
break;
}
}
if (status<0 || !feof(put_fp) || upcnt!=put_file_size) {
char tmpbuf[BUFSIZ];
sprintf(tmpbuf,"Status: %d -- EOF: %d -- UpCnt/FileSize: %d/%d\n\nThe server you connected to either does not support\nthe PUT method, or an error occurred.\n\nYour upload was corrupted! Please try again!",status,(feof(put_fp)?1:0),upcnt,put_file_size);
application_error(tmpbuf,"Upload Error!");
}
}
/* Twirl on each request to make things look nicer -- SWP */
HTCheckActiveIcon(1);
#ifndef DISABLE_TRACE
if (httpTrace) {
fprintf(stderr,"%s",command);
}
#endif
free (command);
if (status <= 0)
{
if (status == 0)
{
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Got status 0 in initial write\n");
#endif
/* Do nothing. */
}
else if
((errno == ENOTCONN || errno == ECONNRESET || errno == EPIPE) &&
!already_retrying &&
/* Don't retry if we're posting. */ !do_post)
{
/* Arrrrgh, HTTP 0/1 compability problem, maybe. */
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf
(stderr,
"HTTP: BONZO ON WRITE Trying again with HTTP0 request.\n");
#endif
/*
HTProgress ("Retrying as HTTP0 request.");
*/
NETCLOSE(s);
// SAM extensions = NO;
already_retrying = 1;
goto try_again;
}
else
{
if(keepingalive){
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Timeout on Keep-Alive. Retrying.\n");
#endif
HTProgress("Server Timeout: Reconnecting");
goto try_again;
}
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Hit unexpected network WRITE error; aborting connection.\n");
#endif
NETCLOSE (s);
status = -1;
HTProgress ("Unexpected network write error; connection aborted.");
goto done;
}
}
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: WRITE delivered OK\n");
#endif
HTProgress ("Done sending HTTP request; waiting for response.");
/* Read the first line of the response
** -----------------------------------
*/
{
/* Get numeric status etc */
BOOL end_of_file = NO;
int buffer_length = INIT_LINE_SIZE;
line_buffer = (char *) malloc(buffer_length * sizeof(char));
do {
/* Loop to read in the first line */
/* Extend line buffer if necessary for those crazy WAIS URLs ;-) */
if (buffer_length - length < LINE_EXTEND_THRESH) {
buffer_length = buffer_length + buffer_length;
line_buffer =
(char *) realloc(line_buffer, buffer_length * sizeof(char));
}
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Trying to read %d\n",
buffer_length - length - 1);
#endif
status = NETREAD(s, line_buffer + length,
buffer_length - length - 1);
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Read %d\n", status);
#endif
if (status <= 0) {
/* Retry if we get nothing back too;
bomb out if we get nothing twice. */
if (status == HT_INTERRUPTED) {
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Interrupted initial read.\n");
#endif
HTProgress ("Connection interrupted.");
status = HT_INTERRUPTED;
NETCLOSE (s);
goto clean_up;
} else
if
(status < 0 &&
(errno == ENOTCONN || errno == ECONNRESET || errno == EPIPE)
&& !already_retrying && !do_post)
{
/* Arrrrgh, HTTP 0/1 compability problem, maybe. */
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: BONZO Trying again with HTTP0 request.\n");
#endif
NETCLOSE(s);
if (line_buffer)
free(line_buffer);
if (line_kept_clean)
free(line_kept_clean);
extensions = NO;
already_retrying = 1;
HTProgress ("Retrying as HTTP0 request.");
goto try_again;
} else {
if(keepingalive){
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Timeout on Keep-Alive. Retrying.\n");
#endif
HTProgress("Server Timeout: Reconnecting");
goto try_again;
}
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Hit unexpected network read error; aborting connection; status %d.\n", status);
#endif
HTProgress
("Unexpected network read error; connection aborted.");
NETCLOSE (s);
status = -1;
goto clean_up;
}
}
bytes_already_read += status;
{
char line[256];
sprintf (line, "Read %d bytes of data.", bytes_already_read);
HTProgress (line);
}
if (status == 0) {
end_of_file = YES;
break;
}
line_buffer[length+status] = 0;
if (line_buffer) {
if (line_kept_clean)
free (line_kept_clean);
line_kept_clean = (char *)malloc (buffer_length * sizeof (char));
/*
bcopy (line_buffer, line_kept_clean, buffer_length);
*/
memcpy (line_kept_clean, line_buffer, buffer_length);
}
eol = strchr(line_buffer + length, LF);
/* Do we *really* want to do this? */
if (eol && eol != line_buffer && *(eol-1) == CR)
*(eol-1) = ' ';
length = length + status;
/* Do we really want to do *this*? */
if (eol)
*eol = 0; /* Terminate the line */
/* All we need is the first line of the response. If it's a HTTP/1.0
response, then the first line will be absurdly short and therefore
we can safely gate the number of bytes read through this code
(as opposed to below) to ~1000. */
/* Well, let's try 100. */
} while (!eol && !end_of_file && bytes_already_read < 100);
} /* Scope of loop variables */
/* We now have a terminated unfolded line. Parse it.
** -------------------------------------------------
*/
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf(stderr, "HTTP: Rx: %s\n", line_buffer);
#endif
{
int fields;
char server_version[VERSION_LENGTH+1];
int server_status;
/*SWP*/
statusError=0;
server_version[0] = 0;
fields = sscanf(line_buffer, "%20s %d",
server_version,
&server_status);
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Scanned %d fields from line_buffer\n", fields);
#endif
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: line_buffer '%s'\n", line_buffer);
#endif
/* Rule out HTTP/1.0 reply as best we can. */
if (fields < 2 || !server_version[0] || server_version[0] != 'H' ||
server_version[1] != 'T' || server_version[2] != 'T' ||
server_version[3] != 'P' || server_version[4] != '/' ||
server_version[6] != '.')
{
/* HTTP0 reply */
HTAtom * encoding;
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "--- Talking HTTP0.\n");
#endif
format_in = HTFileFormat(arg, &encoding, WWW_HTML, &compressed);
start_of_data = line_kept_clean;
}
else
{
/* Decode full HTTP response */
format_in = HTAtom_for("www/mime");
/* We set start_of_data to "" when !eol here because there
will be a put_block done below; we do *not* use the value
of start_of_data (as a pointer) in the computation of
length or anything else in this situation. */
start_of_data = eol ? eol + 1 : "";
length = eol ? length - (start_of_data - line_buffer) : 0;
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "--- Talking HTTP1.\n");
#endif
switch (server_status / 100)
{
case 3: /* Various forms of redirection */
/* We now support this in the parser, at least. */
doing_redirect = 1;
break;
case 4: /* "I think I goofed" */
switch (server_status)
{
case 403:
statusError=1;
/* 403 is "forbidden"; display returned text. */
break;
case 401:
/* length -= start_of_data - text_buffer; */
if (HTAA_shouldRetryWithAuth(start_of_data, length, s))
{
(void)NETCLOSE(s);
lsocket = -1;
if (line_buffer)
free(line_buffer);
if (line_kept_clean)
free(line_kept_clean);
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf(stderr, "%s %d %s\n",
"HTTP: close socket", s,
"to retry with Access Authorization");
#endif
HTProgress ("Retrying with access authorization information.");
goto try_again;
break;
}
else
{
statusError=1;
/* Fall through. */
}
default:
statusError=1;
break;
} /* case 4 switch */
break;
case 5: /* I think you goofed */
statusError=1;
break;
case 2: /* Good: Got MIME object */
switch (server_status)
{
case 204:
return_nothing = 1;
format_in = HTAtom_for("text/html");
break;
case 200:
if (do_head) {
if (!start_of_data || !*start_of_data) {
headData=NULL;
}
else {
char *ptr;
headData=strdup(start_of_data);
ptr=strchr(headData,'\n');
*ptr='\0';
}
}
break;
default:
break;
}
break;
default: /* bad number */
statusError=1;
HTAlert("Unknown status reply from server!");
break;
} /* Switch on server_status/100 */
} /* Full HTTP reply */
} /* scope of fields */
/* Set up the stream stack to handle the body of the message */
target = HTStreamStack(format_in,
format_out,
compressed,
sink, anAnchor);
if (!target)
{
char buffer[1024]; /* @@@@@@@@ */
sprintf(buffer, "Sorry, no known way of converting %s to %s.",
HTAtom_name(format_in), HTAtom_name(format_out));
HTProgress (buffer);
status = -1;
NETCLOSE (s);
lsocket = -1;
goto clean_up;
}
if (!return_nothing)
{
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Doing put_block, '%s'\n", start_of_data);
#endif
/* BJS: parse start_of_data...*/
for(p=start_of_data;*p;p++){
/* if(*p=='C' && !strncmp("Content-length: ",p,16)){
i = 0;
p+=16;
while(*p && isdigit(*p)){
i = i*10 + *p-'0';
p++;
}
p--;
#ifndef DISABLE_TRACE
if(www2Trace)
fprintf(stderr, "HTTP: Content Length is %d\n",i);
#endif
}
*/
if(*p=='K' && !strncmp("Keep-Alive:",p,11)){
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Server Agrees to Keep-Alive\n");
#endif
lsocket = s;
p+=10;
}
}
#ifndef DISABLE_TRACE
if (www2Trace && lsocket == -1)
fprintf (stderr, "HTTP: Server does not agree to Keep-Alive\n");
#endif
/* Recycle the first chunk of data, in all cases. */
(*target->isa->put_block)(target, start_of_data, length);
/* Go pull the bulk of the data down. */
/* if we dont use length, header length is wrong due to the
discarded first line - bjs*/
rv = HTCopy(s, target, length /*bytes_already_read*/);
if (rv == -1)
{
(*target->isa->handle_interrupt) (target);
status = HT_INTERRUPTED;
NETCLOSE (s);
lsocket = -1;
goto clean_up;
}
if (rv == -2 && !already_retrying && !do_post)
{
/* Aw hell. */
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf (stderr, "HTTP: Trying again with HTTP0 request.\n");
#endif
/* May as well consider it an interrupt -- right? */
(*target->isa->handle_interrupt) (target);
NETCLOSE(s);
if (line_buffer)
free(line_buffer);
if (line_kept_clean)
free(line_kept_clean);
extensions = NO;
already_retrying = 1;
HTProgress ("Retrying as HTTP0 request.");
goto try_again;
}
}
else
{
/* return_nothing is high. */
(*target->isa->put_string) (target, "<mosaic-access-override>\n");
HTProgress ("And silence filled the night.");
}
(*target->isa->end_document)(target);
/* Close socket before doing free. */
if(lsocket == -1){
NETCLOSE(s);
#ifndef DISABLE_TRACE
if(www2Trace)
fprintf(stderr,"HTTP: Closing connection\n");
#endif
} else {
HTProgress("Leaving Server Connection Open");
#ifndef DISABLE_TRACE
if(www2Trace)
fprintf(stderr,"HTTP: Keeping connection alive\n");
#endif
}
/*
else {
NETCLOSE(s);
#ifndef DISABLE_TRACE
if(www2Trace)
fprintf(stderr,"HTTP: Closing connection\n");
#endif
}
*/
(*target->isa->free)(target);
if (doing_redirect)
{
/* OK, now we've got the redirection URL temporarily stored
in external variable redirecting_url, exported from HTMIME.c,
since there's no straightforward way to do this in the library
currently. Do the right thing. */
status = HT_REDIRECTING;
}
else
{
status = HT_LOADED;
}
/* Clean up
*/
clean_up:
if (line_buffer)
free(line_buffer);
if (line_kept_clean)
free(line_kept_clean);
done:
/* Clear out on exit, just in case. */
do_post = 0;
if (statusError) {
securityType=HTAA_NONE;
#ifndef DISABLE_TRACE
if (www2Trace)
fprintf(stderr,"Resetting security type to NONE.\n");
#endif
}
return status;
}
