/* Parse a document in memory given format and memory block pointer
**
** This routine is responsible for creating and PRESENTING any
** graphic (or other) objects described by the file.
**
** State of memory and target stream on entry:
** HTChunk* (chunk) assumed valid,
** target (sink) usually NULL (will call stream stack).
**
** Return values:
** -501 Stream stack failed (cannot present or convert).
** HT_LOADED All data sent.
**
** State of memory and target stream on return:
** always chunk unchanged; target freed, aborted, or NULL.
*/
PUBLIC int HTParseMem ARGS5(
HTFormat, rep_in,
HTFormat, format_out,
HTParentAnchor *, anchor,
HTChunk *, chunk,
HTStream *, sink)
{
HTStream * stream;
HTStreamClass targetClass;
int rv;
stream = HTStreamStack(rep_in, format_out, sink, anchor);
if (!stream) {
char *buffer = 0;
HTSprintf0(&buffer, CANNOT_CONVERT_I_TO_O,
HTAtom_name(rep_in), HTAtom_name(format_out));
CTRACE((tfp, "HTFormat(in HTParseMem): %s\n", buffer));
rv = HTLoadError(sink, 501, buffer);
FREE(buffer);
return rv;
}
/* Push the data down the stream
*/
targetClass = *(stream->isa);
rv = HTMemCopy(chunk, stream);
(*targetClass._free)(stream);
return HT_LOADED;
}
/* Parse a file given format and file pointer
**
** This routine is responsible for creating and PRESENTING any
** graphic (or other) objects described by the file.
**
** The file number given is assumed to be a TELNET stream ie containing
** CRLF at the end of lines which need to be stripped to LF for unix
** when the format is textual.
**
*/
PUBLIC int HTParseFile ARGS6(
HTFormat, format_in,
HTFormat, format_out,
HTParentAnchor *, anchor,
FILE *, fp,
HTStream*, sink,
int, compressed)
{
HTStream * stream;
HTStreamClass targetClass;
stream = HTStreamStack(format_in,
format_out,
compressed,
sink , anchor);
if (!stream) {
char buffer[1024]; /* @@@@@@@@ */
sprintf(buffer, "Sorry, can't convert from %s to %s.",
HTAtom_name(format_in), HTAtom_name(format_out));
#ifndef DISABLE_TRACE
if (www2Trace) fprintf(stderr, "HTFormat(in HTParseFile): %s\n", buffer);
#endif
return HTLoadError(sink, 501, buffer);
}
targetClass = *(stream->isa); /* Copy pointers to procedures */
HTFileCopy(fp, stream);
(*targetClass.end_document)(stream);
(*targetClass.free)(stream);
return HT_LOADED;
}
/* Parse a file given format and file pointer
**
** This routine is responsible for creating and PRESENTING any
** graphic (or other) objects described by the file.
**
** The file number given is assumed to be a TELNET stream ie containing
** CRLF at the end of lines which need to be stripped to \n for unix
** when the format is textual.
**
** State of file and target stream on entry:
** FILE* (fp) assumed open,
** target (sink) usually NULL (will call stream stack).
**
** Return values:
** -501 Stream stack failed (cannot present or convert).
** -1 Download cancelled.
** HT_NO_DATA Error before any data read.
** HT_PARTIAL_CONTENT Interruption or error after some data read.
** HT_LOADED Normal end of file indication on reading.
**
** State of file and target stream on return:
** always fp still open; target freed, aborted, or NULL.
*/
PUBLIC int HTParseFile ARGS5(
HTFormat, rep_in,
HTFormat, format_out,
HTParentAnchor *, anchor,
FILE *, fp,
HTStream*, sink)
{
HTStream * stream;
HTStreamClass targetClass;
int rv;
#ifdef SH_EX /* 1998/01/04 (Sun) 16:04:09 */
if (fp == NULL)
return HT_LOADED;
#endif
stream = HTStreamStack(rep_in, format_out, sink, anchor);
if (!stream) {
char *buffer = 0;
if (LYCancelDownload) {
LYCancelDownload = FALSE;
return -1;
}
HTSprintf0(&buffer, CANNOT_CONVERT_I_TO_O,
HTAtom_name(rep_in), HTAtom_name(format_out));
CTRACE((tfp, "HTFormat(in HTParseFile): %s\n", buffer));
rv = HTLoadError(sink, 501, buffer);
FREE(buffer);
return rv;
}
/* Push the data down the stream
**
** @@ Bug: This decision ought to be made based on "encoding"
** rather than on content-type. @@@ When we handle encoding.
** The current method smells anyway.
*/
targetClass = *(stream->isa); /* Copy pointers to procedures */
rv = HTFileCopy(fp, stream);
if (rv == -1 || rv == HT_INTERRUPTED) {
(*targetClass._abort)(stream, NULL);
} else {
(*targetClass._free)(stream);
}
if (rv == -1)
return HT_NO_DATA;
else if (rv == HT_INTERRUPTED || (rv > 0 && rv != HT_LOADED))
return HT_PARTIAL_CONTENT;
else
return HT_LOADED;
}
/* Parse a socket given format and file number
**
** This routine is responsible for creating and PRESENTING any
** graphic (or other) objects described by the file.
**
** The file number given is assumed to be a TELNET stream ie containing
** CRLF at the end of lines which need to be stripped to LF for unix
** when the format is textual.
**
*/
PUBLIC int HTParseSocket ARGS6(
HTFormat, format_in,
HTFormat, format_out,
HTParentAnchor *, anchor,
int, file_number,
HTStream*, sink,
int, compressed)
{
HTStream * stream;
HTStreamClass targetClass;
int rv;
stream = HTStreamStack(format_in,
format_out,
compressed,
sink, anchor);
if (!stream)
{
char buffer[1024]; /* @@@@@@@@ */
sprintf(buffer, "Sorry, can't convert from %s to %s.",
HTAtom_name(format_in), HTAtom_name(format_out));
#ifndef DISABLE_TRACE
if (www2Trace) fprintf(stderr, "HTFormat: %s\n", buffer);
#endif
return HTLoadError(sink, 501, buffer);
}
targetClass = *(stream->isa); /* Copy pointers to procedures */
rv = HTCopy(file_number, stream, 0);
if (rv == -1)
{
/* handle_interrupt should have been done in HTCopy */
/* (*targetClass.handle_interrupt)(stream); */
return HT_INTERRUPTED;
}
(*targetClass.end_document)(stream);
/* New thing: we force close the data socket here, so that if
an external viewer gets forked off in the free method below,
the connection doesn't remain upon until the child exits --
which it does if we don't do this. */
NETCLOSE (file_number);
(*targetClass.free)(stream);
return HT_LOADED;
}
int LYLoadKeymap( char *arg, HTParentAnchor *anAnchor, HTFormat format_out, HTStream *sink )
{
HTFormat format_in = HTAtom_for( "text/html" );
HTStream *target;
char *buf = 0;
int i;
target = HTStreamStack( format_in, format_out, &sink[0]._HTStream, anAnchor );
if ( target == 0 || target == 0 )
{
HTSprintf0( &buf, gettext( "Sorry, no known way of converting %s to %s." ), format_in->name, format_out->name );
HTAlert( buf );
if ( buf )
{
free( buf );
buf = 0;
}
return -29999;
}
else
{
anAnchor->no_cache = 1;
HTSprintf0( &buf, "<html>\n<head>\n<title>%s</title>\n</head>\n<body>\n", gettext( "Current Key Map" ) );
ebx( target, buf, strlen( buf ) );
HTSprintf0( &buf, "<pre>\n" );
ebx( target, buf, strlen( buf ) );
i = 98;
for ( ; i <= 123; i++ )
{
print_binding( target, i, 1 );
// i++;
}
i = 1;
for ( ; i <= 660; i++ )
{
if ( ( i > 127 || i <= 32 || !( *(short*)(*(int*)(__ctype_b_loc( )) + ( ( i + -1 ) * 2 )) & 1024 ) ) && ( LYUseMouse || keymap[ i ] != 84 ) )
print_binding( target, i, 0 );
// i++;
}
HTSprintf0( &buf, "</pre>\n</body>\n</html>\n" );
ebx( target, buf, strlen( buf ) );
;
}
}
/*
** Scan the request line for METHOD, URI and VERSION
** Returns: HT_OK if 1.x request and OK
** HT_LOADED if 0.9 request and OK
** HT_ERROR if invalid request line
*/
PRIVATE int ParseRequest (HTStream * me)
{
HTRequest * client = HTList_firstObject(me->http->clients);
char * line = HTChunk_data(me->buffer);
char * method_str = HTNextField(&line);
char * request_uri = HTNextField(&line);
char * version_str = HTNextField(&line);
HTMethod method;
/* Check if method is allowed */
if (!method_str || (method = HTMethod_enum(method_str))==METHOD_INVALID) {
HTRequest_addError(client, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
NULL, 0, "ParseRequest");
return HT_ERROR;
}
HTRequest_setMethod(client, method);
/* Find an anchor for the request URI */
if (request_uri) {
char * uri = HTParse(request_uri, "file:", PARSE_ALL);
HTRequest_setAnchor(client, HTAnchor_findAddress(uri));
HT_FREE(uri);
} else {
HTRequest_addError(client, ERR_FATAL, NO, HTERR_BAD_REQUEST,
NULL, 0, "ParseRequest");
return HT_ERROR;
}
/* Get ready to get the rest of the request */
if (version_str) {
me->target = HTStreamStack(WWW_MIME_HEAD,
HTRequest_debugFormat(client),
HTRequest_debugStream(client),
client, NO);
return HT_OK;
} else {
HTRequest_addError(client, ERR_FATAL, NO, HTERR_BAD_VERSION,
NULL, 0, "ParseRequest");
return HT_ERROR;
}
}
/* ScanResponse
** ------------
** Analyzes the response from the NNTP server.
** We only expect one line response codes.
** Returns HT_LOADED if OK, HT_ERROR if error
*/
PRIVATE int ScanResponse (HTStream * me)
{
news_info *news = me->news;
*(me->buffer+me->buflen) = '\0';
if (isdigit((int) *(me->buffer))) sscanf(me->buffer, "%d", &news->repcode);
me->buflen = 0;
news->reply = me->buffer+4;
HTTRACE(PROT_TRACE, "News Rx..... `%s\'\n" _ news->reply);
/* If 2xx code and we expect data then go into semi-transparent mode */
if (me->news->format && news->repcode/100 == 2) {
HTRequest *req = me->request;
me->target = HTStreamStack(me->news->format, req->output_format,
req->output_stream, req, NO);
me->semi_trans = YES;
if (!me->target) return HT_ERROR;
} else if (news->repcode/100 == 4) {
HTRequest_addError(me->request, ERR_FATAL, NO, HTERR_NOT_FOUND,
news->reply, strlen(news->reply), "ScanResponse");
}
return HT_LOADED;
}
/* Parse a socket given format and file number
**
** This routine is responsible for creating and PRESENTING any
** graphic (or other) objects described by the file.
**
** The file number given is assumed to be a TELNET stream ie containing
** CRLF at the end of lines which need to be stripped to LF for unix
** when the format is textual.
**
** State of socket and target stream on entry:
** socket (file_number) assumed open,
** target (sink) usually NULL (will call stream stack).
**
** Return values:
** HT_INTERRUPTED Interruption or error after some data received.
** -501 Stream stack failed (cannot present or convert).
** -2 Unexpected disconnect before any data received.
** -1 Stream stack failed (cannot present or convert), or
** Interruption or error before any data received, or
** (UNIX) other read error before any data received, or
** download cancelled.
** HT_LOADED Normal close of socket (end of file indication
** received), or
** unexpected disconnect after some data received, or
** other read error after some data received, or
** (not UNIX) other read error before any data received.
**
** State of socket and target stream on return depends on return value:
** HT_INTERRUPTED socket still open, target aborted.
** -501 socket still open, target stream NULL.
** -2 socket still open, target freed.
** -1 socket still open, target stream aborted or NULL.
** otherwise socket closed, target stream freed.
*/
PUBLIC int HTParseSocket ARGS5(
HTFormat, rep_in,
HTFormat, format_out,
HTParentAnchor *, anchor,
int, file_number,
HTStream*, sink)
{
HTStream * stream;
HTStreamClass targetClass;
int rv;
stream = HTStreamStack(rep_in, format_out, sink, anchor);
if (!stream) {
char *buffer = 0;
if (LYCancelDownload) {
LYCancelDownload = FALSE;
return -1;
}
HTSprintf0(&buffer, CANNOT_CONVERT_I_TO_O,
HTAtom_name(rep_in), HTAtom_name(format_out));
CTRACE((tfp, "HTFormat: %s\n", buffer));
rv = HTLoadError(sink, 501, buffer); /* returns -501 */
FREE(buffer);
} else {
/*
** Push the data, don't worry about CRLF we can strip them later.
*/
targetClass = *(stream->isa); /* Copy pointers to procedures */
rv = HTCopy(anchor, file_number, NULL, stream);
if (rv != -1 && rv != HT_INTERRUPTED)
(*targetClass._free)(stream);
}
return rv;
/* Originally: full: HT_LOADED; partial: HT_INTERRUPTED; no bytes: -1 */
}
PRIVATE int HTBoundary_put_block (HTStream * me, const char * b, int l)
{
const char *start = b;
const char *end = b;
while (l-- > 0) {
if (me->state == EOL_FCR) {
me->state = (*b == LF) ? EOL_FLF : EOL_BEGIN;
} else if (me->state == EOL_FLF) {
if (me->dash == 2) {
while (l>0 && *me->bpos && *me->bpos==*b) l--, me->bpos++, b++;
if (!*me->bpos) {
HTTRACE(STREAM_TRACE, "Boundary.... `%s\' found\n" _ me->boundary);
me->bpos = me->boundary;
me->body = YES;
me->state = EOL_DOT;
} else if (l>0) {
me->dash = 0;
me->bpos = me->boundary;
me->state = EOL_BEGIN;
}
}
if (*b == '-') {
me->dash++;
} else if (*b != CR && *b != LF) {
me->dash = 0;
me->state = EOL_BEGIN;
}
} else if (me->state == EOL_SLF) { /* Look for closing '--' */
if (me->dash == 4) {
if (end > start) {
int status = PUTBLOCK(start, end-start);
if (status != HT_OK) return status;
}
HTTRACE(STREAM_TRACE, "Boundary.... Ending\n");
start = b;
me->dash = 0;
me->state = EOL_BEGIN;
}
if (*b == '-') {
me->dash++;
} else if (*b != CR && *b != LF) {
me->dash = 0;
me->state = EOL_BEGIN;
}
me->body = NO;
} else if (me->state == EOL_DOT) {
int status;
if (me->body) {
if (me->target) FREE_TARGET;
me->target = HTStreamStack(WWW_MIME,me->format,
HTMerge(me->orig_target, 2),
me->request, YES);
if (end > start) {
if ((status = PUTBLOCK(start, end-start)) != HT_OK)
return status;
}
} else {
if (me->debug)
if ((status = PUTDEBUG(start, end-start)) != HT_OK)
return status;
}
start = b;
if (*b == '-') me->dash++;
me->state = EOL_SLF;
} else if (*b == CR) {
me->state = EOL_FCR;
end = b;
} else if (*b == LF) {
if (me->state != EOL_FCR) end = b;
me->state = EOL_FLF;
}
b++;
}
return (start<b && me->body) ? PUTBLOCK(start, b-start) : HT_OK;
}
static int LYLoadCGI(const char *arg,
HTParentAnchor *anAnchor,
HTFormat format_out,
HTStream *sink)
{
int status = 0;
#ifdef LYNXCGI_LINKS
#ifndef VMS
char *cp;
struct stat stat_buf;
char *pgm = NULL; /* executable */
char *pgm_args = NULL; /* and its argument(s) */
int statrv;
char *orig_pgm = NULL; /* Path up to ? as given, URL-escaped */
char *document_root = NULL; /* Corrected value of DOCUMENT_ROOT */
char *path_info = NULL; /* PATH_INFO extracted from pgm */
char *pgm_buff = NULL; /* PATH_INFO extraction buffer */
char *path_translated; /* From document_root/path_info */
if (isEmpty(arg) || strlen(arg) <= 8) {
HTAlert(BAD_REQUEST);
status = -2;
return (status);
} else {
if (StrNCmp(arg, "lynxcgi://localhost", 19) == 0) {
StrAllocCopy(pgm, arg + 19);
} else {
StrAllocCopy(pgm, arg + 8);
}
if ((cp = StrChr(pgm, '?')) != NULL) { /* Need to terminate executable */
*cp++ = '\0';
pgm_args = cp;
}
}
StrAllocCopy(orig_pgm, pgm);
if (trimPoundSelector(pgm) != NULL) {
/*
* Strip a #fragment from path. In this case any pgm_args found above
* will also be bogus, since the '?' came after the '#' and is part of
* the fragment. Note that we don't handle the case where a '#'
* appears after a '?' properly according to URL rules. - kw
*/
pgm_args = NULL;
}
HTUnEscape(pgm);
/* BEGIN WebSter Mods */
/* If pgm is not stat-able, see if PATH_INFO data is at the end of pgm */
if ((statrv = stat(pgm, &stat_buf)) < 0) {
StrAllocCopy(pgm_buff, pgm);
while (statrv < 0 || (statrv = stat(pgm_buff, &stat_buf)) < 0) {
if ((cp = strrchr(pgm_buff, '/')) != NULL) {
*cp = '\0';
statrv = 1; /* force new stat() - kw */
} else {
PERROR("strrchr(pgm_buff, '/') returned NULL");
break;
}
}
if (statrv < 0) {
/* Did not find PATH_INFO data */
PERROR("stat() of pgm_buff failed");
} else {
/* Found PATH_INFO data. Strip it off of pgm and into path_info. */
StrAllocCopy(path_info, pgm + strlen(pgm_buff));
/* The following is safe since pgm_buff was derived from pgm
by stripping stuff off its end and by HTUnEscaping, so we
know we have enough memory allocated for pgm. Note that
pgm_args may still point into that memory, so we cannot
reallocate pgm here. - kw */
strcpy(pgm, pgm_buff);
CTRACE((tfp,
"LYNXCGI: stat() of %s succeeded, path_info=\"%s\".\n",
pgm_buff, path_info));
}
FREE(pgm_buff);
}
/* END WebSter Mods */
if (statrv != 0) {
/*
* Neither the path as given nor any components examined by backing up
* were stat()able. - kw
*/
HTAlert(gettext("Unable to access cgi script"));
PERROR("stat() failed");
status = -4;
} else
#ifdef _WINDOWS /* 1998/01/14 (Wed) 09:16:04 */
#define isExecutable(mode) (mode & (S_IXUSR))
#else
#define isExecutable(mode) (mode & (S_IXUSR|S_IXGRP|S_IXOTH))
#endif
if (!(S_ISREG(stat_buf.st_mode) && isExecutable(stat_buf.st_mode))) {
/*
* Not a runnable file, See if we can load it using "file:" code.
*/
char *new_arg = NULL;
/*
* But try "file:" only if the file we are looking at is the path as
* given (no path_info was extracted), otherwise it will be to
* confusing to know just what file is loaded. - kw
*/
if (path_info) {
CTRACE((tfp,
"%s is not a file and %s not an executable, giving up.\n",
orig_pgm, pgm));
FREE(path_info);
FREE(pgm);
FREE(orig_pgm);
status = -4;
return (status);
}
LYLocalFileToURL(&new_arg, orig_pgm);
CTRACE((tfp, "%s is not an executable file, passing the buck.\n", arg));
status = HTLoadFile(new_arg, anAnchor, format_out, sink);
FREE(new_arg);
} else if (path_info &&
anAnchor != HTMainAnchor &&
!(reloading && anAnchor->document) &&
strcmp(arg, HTLoadedDocumentURL()) &&
HText_AreDifferent(anAnchor, arg) &&
HTUnEscape(orig_pgm) &&
!can_exec_cgi(orig_pgm, "")) {
/*
* If we have extra path info and are not just reloading the current,
* check the full file path (after unescaping) now to catch forbidden
* segments. - kw
*/
status = HT_NOT_LOADED;
} else if (no_lynxcgi) {
HTUserMsg(CGI_DISABLED);
status = HT_NOT_LOADED;
} else if (no_bookmark_exec &&
anAnchor != HTMainAnchor &&
!(reloading && anAnchor->document) &&
strcmp(arg, HTLoadedDocumentURL()) &&
HText_AreDifferent(anAnchor, arg) &&
HTLoadedDocumentBookmark()) {
/*
* If we are reloading a lynxcgi document that had already been loaded,
* the various checks above should allow it even if no_bookmark_exec is
* TRUE an we are not now coming from a bookmark page. - kw
*/
HTUserMsg(BOOKMARK_EXEC_DISABLED);
status = HT_NOT_LOADED;
} else if (anAnchor != HTMainAnchor &&
!(reloading && anAnchor->document) &&
strcmp(arg, HTLoadedDocumentURL()) &&
HText_AreDifferent(anAnchor, arg) &&
!can_exec_cgi(pgm, pgm_args)) {
/*
* If we are reloading a lynxcgi document that had already been loaded,
* the various checks above should allow it even if exec_ok() would
* reject it because we are not now coming from a document with a URL
* allowed by TRUSTED_LYNXCGI rules. - kw
*/
status = HT_NOT_LOADED;
} else {
HTFormat format_in;
HTStream *target = NULL; /* Unconverted data */
int fd1[2], fd2[2];
char buf[MAX_LINE];
int pid;
#ifdef HAVE_TYPE_UNIONWAIT
union wait wstatus;
#else
int wstatus;
#endif
fd1[0] = -1;
fd1[1] = -1;
fd2[0] = -1;
fd2[1] = -1;
if (anAnchor->isHEAD || keep_mime_headers) {
/* Show output as plain text */
format_in = WWW_PLAINTEXT;
} else {
/* Decode full HTTP response */
format_in = HTAtom_for("www/mime");
}
target = HTStreamStack(format_in,
format_out,
sink, anAnchor);
if (!target || target == NULL) {
char *tmp = 0;
HTSprintf0(&tmp, CANNOT_CONVERT_I_TO_O,
HTAtom_name(format_in),
HTAtom_name(format_out));
HTAlert(tmp);
FREE(tmp);
status = HT_NOT_LOADED;
} else if (anAnchor->post_data && pipe(fd1) < 0) {
HTAlert(CONNECT_SET_FAILED);
PERROR("pipe() failed");
status = -3;
} else if (pipe(fd2) < 0) {
HTAlert(CONNECT_SET_FAILED);
PERROR("pipe() failed");
close(fd1[0]);
close(fd1[1]);
status = -3;
} else {
static BOOL first_time = TRUE; /* One time setup flag */
if (first_time) { /* Set up static environment variables */
first_time = FALSE; /* Only once */
add_environment_value("REMOTE_HOST=localhost");
add_environment_value("REMOTE_ADDR=127.0.0.1");
HTSprintf0(&user_agent, "HTTP_USER_AGENT=%s/%s libwww/%s",
LYNX_NAME, LYNX_VERSION, HTLibraryVersion);
add_environment_value(user_agent);
HTSprintf0(&server_software, "SERVER_SOFTWARE=%s/%s",
LYNX_NAME, LYNX_VERSION);
add_environment_value(server_software);
}
fflush(stdout);
fflush(stderr);
CTRACE_FLUSH(tfp);
if ((pid = fork()) > 0) { /* The good, */
ssize_t chars;
off_t total_chars;
close(fd2[1]);
if (anAnchor->post_data) {
ssize_t written;
int remaining, total_written = 0;
close(fd1[0]);
/* We have form data to push across the pipe */
if (TRACE) {
CTRACE((tfp,
"LYNXCGI: Doing post, content-type '%s'\n",
anAnchor->post_content_type));
CTRACE((tfp, "LYNXCGI: Writing:\n"));
trace_bstring(anAnchor->post_data);
CTRACE((tfp, "----------------------------------\n"));
}
remaining = BStrLen(anAnchor->post_data);
while ((written = write(fd1[1],
BStrData(anAnchor->post_data) + total_written,
(size_t) remaining)) != 0) {
if (written < 0) {
#ifdef EINTR
if (errno == EINTR)
continue;
#endif /* EINTR */
#ifdef ERESTARTSYS
if (errno == ERESTARTSYS)
continue;
#endif /* ERESTARTSYS */
PERROR("write() of POST data failed");
break;
}
CTRACE((tfp, "LYNXCGI: Wrote %d bytes of POST data.\n",
(int) written));
total_written += (int) written;
remaining -= (int) written;
if (remaining == 0)
break;
}
if (remaining != 0) {
CTRACE((tfp, "LYNXCGI: %d bytes remain unwritten!\n",
remaining));
}
close(fd1[1]);
}
HTReadProgress(total_chars = 0, (off_t) 0);
while ((chars = read(fd2[0], buf, sizeof(buf))) != 0) {
if (chars < 0) {
#ifdef EINTR
if (errno == EINTR)
continue;
#endif /* EINTR */
#ifdef ERESTARTSYS
if (errno == ERESTARTSYS)
continue;
#endif /* ERESTARTSYS */
PERROR("read() of CGI output failed");
break;
}
total_chars += (int) chars;
HTReadProgress(total_chars, (off_t) 0);
CTRACE((tfp, "LYNXCGI: Rx: %.*s\n", (int) chars, buf));
(*target->isa->put_block) (target, buf, (int) chars);
}
if (chars < 0 && total_chars == 0) {
status = HT_NOT_LOADED;
(*target->isa->_abort) (target, NULL);
target = NULL;
} else if (chars != 0) {
status = HT_PARTIAL_CONTENT;
} else {
status = HT_LOADED;
}
#ifndef HAVE_WAITPID
while (wait(&wstatus) != pid) ; /* do nothing */
#else
while (-1 == waitpid(pid, &wstatus, 0)) { /* wait for child */
#ifdef EINTR
if (errno == EINTR)
continue;
#endif /* EINTR */
#ifdef ERESTARTSYS
if (errno == ERESTARTSYS)
continue;
#endif /* ERESTARTSYS */
break;
}
#endif /* !HAVE_WAITPID */
close(fd2[0]);
} else if (pid == 0) { /* The Bad, */
char **argv = NULL;
int argv_cnt = 3; /* name, one arg and terminator */
char **cur_argv = NULL;
int exec_errno;
/* Set up output pipe */
close(fd2[0]);
dup2(fd2[1], fileno(stdout)); /* Should check success code */
dup2(fd2[1], fileno(stderr));
close(fd2[1]);
if (non_empty(language)) {
HTSprintf0(&accept_language, "HTTP_ACCEPT_LANGUAGE=%s", language);
add_environment_value(accept_language);
}
if (non_empty(pref_charset)) {
cp = NULL;
StrAllocCopy(cp, "HTTP_ACCEPT_CHARSET=");
StrAllocCat(cp, pref_charset);
add_environment_value(cp);
}
if (anAnchor->post_data &&
anAnchor->post_content_type) {
cp = NULL;
StrAllocCopy(cp, "CONTENT_TYPE=");
StrAllocCat(cp, anAnchor->post_content_type);
add_environment_value(cp);
}
if (anAnchor->post_data) { /* post script, read stdin */
close(fd1[1]);
dup2(fd1[0], fileno(stdin));
close(fd1[0]);
/* Build environment variables */
add_environment_value("REQUEST_METHOD=POST");
HTSprintf0(&post_len, "CONTENT_LENGTH=%d",
BStrLen(anAnchor->post_data));
add_environment_value(post_len);
} else {
close(fileno(stdin));
if (anAnchor->isHEAD) {
add_environment_value("REQUEST_METHOD=HEAD");
}
}
/*
* Set up argument line, mainly for <index> scripts
*/
if (pgm_args != NULL) {
for (cp = pgm_args; *cp != '\0'; cp++) {
if (*cp == '+') {
argv_cnt++;
}
}
}
argv = (char **) malloc((unsigned) argv_cnt * sizeof(char *));
if (argv == NULL) {
outofmem(__FILE__, "LYCgi");
}
assert(argv != NULL);
cur_argv = argv + 1; /* For argv[0] */
if (pgm_args != NULL) {
char *cr;
/* Data for a get/search form */
if (is_www_index) {
add_environment_value("REQUEST_METHOD=SEARCH");
} else if (!anAnchor->isHEAD && !anAnchor->post_data) {
add_environment_value("REQUEST_METHOD=GET");
}
cp = NULL;
StrAllocCopy(cp, "QUERY_STRING=");
StrAllocCat(cp, pgm_args);
add_environment_value(cp);
/*
* Split up arguments into argv array
*/
cp = pgm_args;
cr = cp;
while (1) {
if (*cp == '\0') {
*(cur_argv++) = HTUnEscape(cr);
break;
} else if (*cp == '+') {
*cp++ = '\0';
*(cur_argv++) = HTUnEscape(cr);
cr = cp;
}
cp++;
}
} else if (!anAnchor->isHEAD && !anAnchor->post_data) {
add_environment_value("REQUEST_METHOD=GET");
}
*cur_argv = NULL; /* Terminate argv */
argv[0] = pgm;
/* Begin WebSter Mods -jkt */
if (LYCgiDocumentRoot != NULL) {
/* Add DOCUMENT_ROOT to env */
cp = NULL;
StrAllocCopy(cp, "DOCUMENT_ROOT=");
StrAllocCat(cp, LYCgiDocumentRoot);
add_environment_value(cp);
}
if (path_info != NULL) {
/* Add PATH_INFO to env */
cp = NULL;
StrAllocCopy(cp, "PATH_INFO=");
StrAllocCat(cp, path_info);
add_environment_value(cp);
}
if (LYCgiDocumentRoot != NULL && path_info != NULL) {
/* Construct and add PATH_TRANSLATED to env */
StrAllocCopy(document_root, LYCgiDocumentRoot);
LYTrimHtmlSep(document_root);
path_translated = document_root;
StrAllocCat(path_translated, path_info);
cp = NULL;
StrAllocCopy(cp, "PATH_TRANSLATED=");
StrAllocCat(cp, path_translated);
add_environment_value(cp);
FREE(path_translated);
}
/* End WebSter Mods -jkt */
execve(argv[0], argv, env);
exec_errno = errno;
PERROR("execve failed");
printf("Content-Type: text/plain\r\n\r\n");
if (!anAnchor->isHEAD) {
printf("exec of %s failed", pgm);
printf(": %s.\r\n", LYStrerror(exec_errno));
}
fflush(stdout);
fflush(stderr);
_exit(1);
} else { /* and the Ugly */
HTAlert(CONNECT_FAILED);
PERROR("fork() failed");
close(fd1[0]);
close(fd1[1]);
close(fd2[0]);
close(fd2[1]);
status = -1;
}
}
if (target != NULL) {
(*target->isa->_free) (target);
}
}
FREE(path_info);
FREE(pgm);
FREE(orig_pgm);
#else /* VMS */
HTStream *target;
char *buf = 0;
target = HTStreamStack(WWW_HTML,
format_out,
sink, anAnchor);
HTSprintf0(&buf, "<html>\n<head>\n<title>%s</title>\n</head>\n<body>\n",
gettext("Good Advice"));
PUTS(buf);
HTSprintf0(&buf, "<h1>%s</h1>\n", gettext("Good Advice"));
PUTS(buf);
HTSprintf0(&buf, "%s <a\n",
gettext("An excellent http server for VMS is available via"));
PUTS(buf);
HTSprintf0(&buf,
"href=\"http://www.ecr6.ohio-state.edu/www/doc/serverinfo.html\"\n");
PUTS(buf);
HTSprintf0(&buf, ">%s</a>.\n", gettext("this link"));
PUTS(buf);
HTSprintf0(&buf, "<p>%s\n",
gettext("It provides state of the art CGI script support.\n"));
PUTS(buf);
HTSprintf0(&buf, "</body>\n</html>\n");
PUTS(buf);
(*target->isa->_free) (target);
FREE(buf);
status = HT_LOADED;
#endif /* VMS */
#else /* LYNXCGI_LINKS */
HTUserMsg(CGI_NOT_COMPILED);
status = HT_NOT_LOADED;
#endif /* LYNXCGI_LINKS */
(void) arg;
(void) anAnchor;
(void) format_out;
(void) sink;
return (status);
}
PRIVATE int pumpData (HTStream * me)
{
HTRequest * request = me->request;
HTResponse * response = me->response;
HTFormat format = HTResponse_format(response);
HTList * te = HTResponse_transfer(response);
HTList * ce = HTResponse_encoding(response);
long length = HTResponse_length(response);
HTStream * BlackHole = HTBlackHole();
BOOL savestream = NO;
me->transparent = YES; /* Pump rest of data right through */
/*
** Cache the metainformation in the anchor object by copying
** it from the response object. This we do regardless if
** we have a persistent cache or not as the memory cache will
** use it as well. If we are updating a cache entry using
** byte ranges then we already have the metainformation and
** hence we can ignore the new one as it'd better be the same.
*/
if (!(me->mode & HT_MIME_PARTIAL) &&
HTResponse_isCachable(me->response) != HT_NO_CACHE)
HTAnchor_update(HTRequest_anchor(request), me->response);
/*
** If we asked only to read the header or footer or we used a HEAD
** method then we stop here as we don't expect any body part.
*/
if (me->mode & (HT_MIME_HEADER | HT_MIME_FOOTER) ||
HTRequest_method(request) == METHOD_HEAD) {
HTAlertCallback * cbf = HTAlert_find(HT_PROG_DONE);
if (cbf) (*cbf)(request, HT_PROG_DONE, HT_MSG_NULL, NULL, NULL, NULL);
return HT_LOADED;
}
/*
** If we are paring a 1xx response then return HT_CONTINUE
*/
if (me->mode & HT_MIME_CONT)
return HT_CONTINUE;
/*
** If we get a 101 Protocol Switch then we are done here
** but not done with the response (which we don't know
** how to go about parsing
*/
if (me->mode & HT_MIME_UPGRADE) {
me->hasBody = YES;
return HT_OK;
}
/*
** If there is no content-length, no transfer encoding and no
** content type then we assume that there is no body part in
** the message and we can return HT_LOADED
*/
{
HTHost * host = HTNet_host(me->net);
if (length<0 && te==NULL &&
HTHost_isPersistent(host) && !HTHost_closeNotification(host)) {
if (format != WWW_UNKNOWN) {
HTTRACE(STREAM_TRACE, "MIME Parser. BAD - there seems to be a body but no length. This must be an HTTP/1.0 server pretending that it is HTTP/1.1\n");
HTHost_setCloseNotification(host, YES);
} else {
HTAlertCallback * cbf = HTAlert_find(HT_PROG_DONE);
if (cbf) (*cbf)(request, HT_PROG_DONE, HT_MSG_NULL, NULL, NULL, NULL);
HTTRACE(STREAM_TRACE, "MIME Parser. No body in this message\n");
return HT_LOADED;
}
}
}
/*
** Deal with the body
*/
me->hasBody = YES;
/*
** Handle any Content Type
*/
if (!(me->mode & HT_MIME_PARTIAL) &&
(format != WWW_UNKNOWN || length > 0 || te)) {
HTStream * target;
HTTRACE(STREAM_TRACE, "Building.... C-T stack from %s to %s\n" _
HTAtom_name(format) _
HTAtom_name(me->target_format));
if ((target = HTStreamStack(format, me->target_format,
me->target, request, YES))==BlackHole) {
if (!savestream) {
if (me->target) (*me->target->isa->abort)(me->target, NULL);
me->target = me->save_stream(request, NULL,
format, me->target_format, me->target);
savestream = YES;
}
} else
me->target = target;
}
/*
** Handle any Content Encodings
*/
HTTRACE(STREAM_TRACE, "Building.... Content-Decoding stack\n");
if (ce) {
HTStream * target = HTContentDecodingStack(ce, me->target, request, NULL);
if (target == BlackHole) {
if (!savestream) {
if (me->target) (*me->target->isa->abort)(me->target, NULL);
me->target = me->save_stream(request, NULL,
format, me->target_format, me->target);
savestream = YES;
}
} else
me->target = target;
}
/*
** Can we cache the data object? If so then create a T stream and hook it
** into the stream pipe. We do it before the transfer decoding so that we
** don't have to deal with that when we retrieve the object from cache.
** If we are appending to a cache entry then use a different stream than
** if creating a new entry.
*/
#ifndef NO_CACHE
if (HTCacheMode_enabled()) {
if (me->mode & HT_MIME_PARTIAL) {
HTStream * append = HTStreamStack(WWW_CACHE_APPEND,
me->target_format,
me->target, request, NO);
if (append) me->target = HTTee(me->target, append, NULL);
#if 0
/* @@ JK: change */
if (append) me->target = append;
#endif
} else if (HTResponse_isCachable(me->response) == HT_CACHE_ALL) {
HTStream * cache = HTStreamStack(WWW_CACHE, me->target_format,
me->target, request, NO);
if (cache) me->target = HTTee(me->target, cache, NULL);
}
}
#endif
/*
** Handle any Transfer Encodings
*/
HTTRACE(STREAM_TRACE, "Building.... Transfer-Decoding stack\n");
if (te) {
HTStream * target = HTTransferDecodingStack(te, me->target, request, NULL);
if (target == BlackHole) {
if (!savestream) {
if (me->target) (*me->target->isa->abort)(me->target, NULL);
me->target = me->save_stream(request, NULL,
format, me->target_format, me->target);
savestream = YES;
}
} else
me->target = target;
}
/*
** If we for some reason couldn't find a target stream
*/
if (!me->target) me->target = HTBlackHole();
return HT_OK;
}
}
static int LYLoadKeymap(const char *arg GCC_UNUSED,
HTParentAnchor *anAnchor,
HTFormat format_out,
HTStream *sink)
{
HTFormat format_in = WWW_HTML;
HTStream *target;
char *buf = 0;
int i;
/*
* Set up the stream. - FM
*/
target = HTStreamStack(format_in, format_out, sink, anAnchor);
if (!target || target == NULL) {
HTSprintf0(&buf, CANNOT_CONVERT_I_TO_O,
HTAtom_name(format_in), HTAtom_name(format_out));
HTAlert(buf);
FREE(buf);
return (HT_NOT_LOADED);
}
anAnchor->no_cache = TRUE;
HTSprintf0(&buf, "<html>\n<head>\n<title>%s</title>\n</head>\n<body>\n",
CURRENT_KEYMAP_TITLE);
PUTS(buf);
HTSprintf0(&buf, "<pre>\n");
PUTS(buf);
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;
}
}
}
}
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;
}
PRIVATE int FileEvent (SOCKET soc, void * pVoid, HTEventType type)
{
file_info *file = pVoid; /* Specific access information */
int status = HT_ERROR;
HTNet * net = file->net;
HTRequest * request = HTNet_request(net);
HTParentAnchor * anchor = HTRequest_anchor(request);
/*
** Initiate a new file structure and bind to request structure
** This is actually state FILE_BEGIN, but it can't be in the state
** machine as we need the structure first.
*/
if (type == HTEvent_CLOSE) { /* Interrupted */
HTRequest_addError(request, ERR_FATAL, NO, HTERR_INTERRUPTED,
NULL, 0, "HTLoadFile");
FileCleanup(request, HT_INTERRUPTED);
return HT_OK;
}
/* Now jump into the machine. We know the state from the previous run */
while (1) {
switch (file->state) {
case FS_BEGIN:
/* We only support safe (GET, HEAD, etc) methods for the moment */
if (!HTMethod_isSafe(HTRequest_method(request))) {
HTRequest_addError(request, ERR_FATAL, NO, HTERR_NOT_ALLOWED,
NULL, 0, "HTLoadFile");
file->state = FS_ERROR;
break;
}
/* Check whether we have access to local disk at all */
if (HTLib_secure()) {
HTTRACE(PROT_TRACE, "LoadFile.... No access to local file system\n");
file->state = FS_TRY_FTP;
break;
}
file->local = HTWWWToLocal(HTAnchor_physical(anchor), "",
HTRequest_userProfile(request));
if (!file->local) {
file->state = FS_TRY_FTP;
break;
}
/* Create a new host object and link it to the net object */
{
HTHost * host = NULL;
if ((host = HTHost_new("localhost", 0)) == NULL) return HT_ERROR;
HTNet_setHost(net, host);
if (HTHost_addNet(host, net) == HT_PENDING) {
HTTRACE(PROT_TRACE, "HTLoadFile.. Pending...\n");
/* move to the hack state */
file->state = FS_PENDING;
return HT_OK;
}
}
file->state = FS_DO_CN;
break;
case FS_PENDING:
/*
** 2000/08/10 JK : This is a funny state. Because of the
** internal libwww stacks, when doing multiple local
** requests (e.g., while using the Robot), we need to ask
** again for the host object. If we had jumped directly to
** the FS_DO_CN state, libwww would have blocked because
** of socket starvation.
** This state is similar to FS_BEGINNING, but just requests
** the host object.
** YES. THIS IS AN UGLY HACK!!
*/
{
HTHost * host = NULL;
if ((host = HTHost_new("localhost", 0)) == NULL) return HT_ERROR;
HTNet_setHost(net, host);
if (HTHost_addNet(host, net) == HT_PENDING) {
HTTRACE(PROT_TRACE, "HTLoadFile.. Pending...\n");
file->state = FS_PENDING;
return HT_OK;
}
}
file->state = FS_DO_CN;
break;
case FS_DO_CN:
/*
** If we have to do content negotiation then find the object that
** fits best into either what the client has indicated in the
** accept headers or what the client has registered on its own.
** The object chosen can in fact be a directory! However, content
** negotiation only makes sense if we can read the directory!
** We stat the file in order to find the size and to see it if
** exists.
*/
if (HTRequest_negotiation(request) &&
HTMethod_isSafe(HTRequest_method(request))) {
char * conneg = HTMulti(request, file->local,&file->stat_info);
if (conneg) {
HT_FREE(file->local);
file->local = conneg;
HTAnchor_setPhysical(anchor, conneg);
HTTRACE(PROT_TRACE, "Load File... Found `%s\'\n" _ conneg);
} else {
HTTRACE(PROT_TRACE, "Load File... Not found - even tried content negotiation\n");
HTRequest_addError(request, ERR_FATAL, NO, HTERR_NOT_FOUND,
NULL, 0, "HTLoadFile");
file->state = FS_ERROR;
break;
}
} else {
if (HT_STAT(file->local, &file->stat_info) == -1) {
HTTRACE(PROT_TRACE, "Load File... Not found `%s\'\n" _ file->local);
HTRequest_addError(request, ERR_FATAL, NO, HTERR_NOT_FOUND,
NULL, 0, "HTLoadFile");
file->state = FS_ERROR;
break;
}
}
/*
** Check to see if the 'localname' is in fact a directory.
** Note that we can't do a HEAD on a directory
*/
if (((file->stat_info.st_mode) & S_IFMT) == S_IFDIR) {
if (HTRequest_method(request) == METHOD_GET)
file->state = FS_PARSE_DIR;
else {
HTRequest_addError(request, ERR_INFO, NO, HTERR_NO_CONTENT,
NULL, 0, "HTLoadFile");
file->state = FS_NO_DATA;
}
break;
}
/*
** If empty file then only serve it if it is editable. We also get
** the bindings for the file suffixes in lack of better bindings
*/
{
BOOL editable = HTEditable(file->local, &file->stat_info);
if (file_suffix_binding) HTBind_getAnchorBindings(anchor);
if (editable) HTAnchor_appendAllow(anchor, METHOD_PUT);
/* Set the file size */
if (file->stat_info.st_size)
HTAnchor_setLength(anchor, file->stat_info.st_size);
/* Set the file last modified time stamp */
if (file->stat_info.st_mtime > 0)
HTAnchor_setLastModified(anchor, file->stat_info.st_mtime);
/* Check to see if we can edit it */
if (!editable && !file->stat_info.st_size) {
HTRequest_addError(request, ERR_INFO, NO, HTERR_NO_CONTENT,
NULL, 0, "HTLoadFile");
file->state = FS_NO_DATA;
} else {
file->state = (HTRequest_method(request)==METHOD_GET) ?
FS_NEED_OPEN_FILE : FS_GOT_DATA;
}
}
break;
case FS_NEED_OPEN_FILE:
status = HTFileOpen(net, file->local, HT_FB_RDONLY);
if (status == HT_OK) {
/*
** Create the stream pipe FROM the channel to the application.
** The target for the input stream pipe is set up using the
** stream stack.
*/
{
HTStream * rstream = HTStreamStack(HTAnchor_format(anchor),
HTRequest_outputFormat(request),
HTRequest_outputStream(request),
request, YES);
HTNet_setReadStream(net, rstream);
HTRequest_setOutputConnected(request, YES);
}
/*
** Create the stream pipe TO the channel from the application
** and hook it up to the request object
*/
{
HTOutputStream * output = HTNet_getOutput(net, NULL, 0);
HTRequest_setInputStream(request, (HTStream *) output);
}
/*
** Set up concurrent read/write if this request isn't the
** source for a PUT or POST. As source we don't start reading
** before all destinations are ready. If destination then
** register the input stream and get ready for read
*/
if (HTRequest_isSource(request) && !HTRequest_destinationsReady(request))
return HT_OK;
HTRequest_addError(request, ERR_INFO, NO, HTERR_OK, NULL, 0,
"HTLoadFile");
file->state = FS_NEED_BODY;
/* If we are _not_ using preemptive mode and we are Unix fd's
** then return here to get the same effect as when we are
** connecting to a socket. That way, HTFile acts just like any
** other protocol module even though we are in fact doing
** blocking connect
*/
if (HTEvent_isCallbacksRegistered()) {
if (!HTRequest_preemptive(request)) {
if (!HTNet_preemptive(net)) {
HTTRACE(PROT_TRACE, "HTLoadFile.. Returning\n");
HTHost_register(HTNet_host(net), net, HTEvent_READ);
} else if (!file->timer) {
HTTRACE(PROT_TRACE, "HTLoadFile.. Returning\n");
file->timer =
HTTimer_new(NULL, ReturnEvent, file, 1, YES, NO);
}
return HT_OK;
}
}
} else if (status == HT_WOULD_BLOCK || status == HT_PENDING)
return HT_OK;
else {
HTRequest_addError(request, ERR_INFO, NO, HTERR_INTERNAL,
NULL, 0, "HTLoadFile");
file->state = FS_ERROR; /* Error or interrupt */
}
break;
case FS_NEED_BODY:
status = HTHost_read(HTNet_host(net), net);
if (status == HT_WOULD_BLOCK)
return HT_OK;
else if (status == HT_LOADED || status == HT_CLOSED) {
file->state = FS_GOT_DATA;
} else {
HTRequest_addError(request, ERR_INFO, NO, HTERR_FORBIDDEN,
NULL, 0, "HTLoadFile");
file->state = FS_ERROR;
}
break;
case FS_PARSE_DIR:
status = HTFile_readDir(request, file);
if (status == HT_LOADED)
file->state = FS_GOT_DATA;
else
file->state = FS_ERROR;
break;
case FS_TRY_FTP:
{
char *url = HTAnchor_physical(anchor);
HTAnchor *anchor;
char *newname = NULL;
StrAllocCopy(newname, "ftp:");
if (!strncmp(url, "file:", 5))
StrAllocCat(newname, url+5);
else
StrAllocCat(newname, url);
anchor = HTAnchor_findAddress(newname);
HTRequest_setAnchor(request, anchor);
HT_FREE(newname);
FileCleanup(request, HT_IGNORE);
return HTLoad(request, YES);
}
break;
case FS_GOT_DATA:
FileCleanup(request, HT_LOADED);
return HT_OK;
break;
case FS_NO_DATA:
FileCleanup(request, HT_NO_DATA);
return HT_OK;
break;
case FS_RETRY:
FileCleanup(request, HT_RETRY);
return HT_OK;
break;
case FS_ERROR:
FileCleanup(request, HT_ERROR);
return HT_OK;
break;
}
} /* End of while(1) */
}
PRIVATE int HTGuess_flush (HTStream * me)
{
if (!me->transparent) {
HTResponse * response = me->response;
/*
** First we look for magic tokens and evaluate the contents of the buffer
** that we are investigating.
*/
if (me->cnt) {
HTTRACE(STREAM_TRACE, "GUESSING.... Result of content analysis: Text=%d%% Newlines=%d%% Ctrl=%d%% High=%d%%\n" _
(int)(100*me->text_cnt/me->cnt + 0.5) _
(int)(100*me->lf_cnt /me->cnt + 0.5) _
(int)(100*me->ctrl_cnt/me->cnt + 0.5) _
(int)(100*me->high_cnt/me->cnt + 0.5));
}
if (!me->ctrl_cnt ||
me->text_cnt + me->lf_cnt >= 16 * (me->ctrl_cnt + me->high_cnt)) {
char *ptr;
/* some kind of text */
*me->write_ptr = 0; /* terminate buffer */
if (me->high_cnt > 0)
HTResponse_setContentTransferEncoding(response, WWW_CODING_8BIT);
else
HTResponse_setContentTransferEncoding(response, WWW_CODING_7BIT);
if (is_html(me->buffer))
HTResponse_setFormat(response, HTAtom_for("text/html"));
else if (!strncmp(me->buffer, "%!", 2))
HTResponse_setFormat(response, HTAtom_for("application/postscript"));
else if (strstr(me->buffer, "#define") &&
strstr(me->buffer, "_width") &&
strstr(me->buffer, "_bits"))
HTResponse_setFormat(response, HTAtom_for("image/x-xbitmap"));
else if ((ptr = strstr(me->buffer, "converted with BinHex"))!=NULL)
HTResponse_setContentTransferEncoding(response, WWW_CODING_MACBINHEX);
else if (!strncmp(me->buffer, "begin ", 6))
HTResponse_setContentTransferEncoding(response, WWW_CODING_BASE64);
else
HTResponse_setFormat(response, WWW_PLAINTEXT);
}
else {
if (!strncmp(me->buffer, "GIF", 3))
HTResponse_setFormat(response, WWW_GIF);
else if (!strncmp(me->buffer, "\377\330\377\340", 4))
HTResponse_setFormat(response, WWW_JPEG);
else if (!strcmp(me->buffer, "MM")) /* MM followed by a zero */
HTResponse_setFormat(response, WWW_TIFF);
else if (!strncmp(me->buffer, "\211PNG\r\n\032\n", 8))
HTResponse_setFormat(response, WWW_PNG);
else if (!strncmp(me->buffer, ".snd", 4))
HTResponse_setFormat(response, WWW_AUDIO);
else if (!strncmp(me->buffer, "\037\235", 2))
HTResponse_addEncoding(response, WWW_CODING_COMPRESS);
else if (!strncmp(me->buffer, "\037\213", 2))
HTResponse_addEncoding(response, WWW_CODING_GZIP);
else
HTResponse_setFormat(response, WWW_BINARY);
}
/*
** If we couldn't find any magic tokens then we try and look at the suffix
** of the URL file name and use our own bindings to see if that gives any
** results.
*/
if (HTResponse_format(response) == WWW_UNKNOWN) {
HTParentAnchor * anchor = HTRequest_anchor(me->request);
char * addr = HTAnchor_physical(anchor);
HTTRACE(STREAM_TRACE, "GUESSING.... Hmm - trying local bindings\n");
HTBind_getResponseBindings (response, addr);
}
/*
** If nothing worked then give up and say binary...
*/
if (HTResponse_format(response) == WWW_UNKNOWN) {
HTTRACE(STREAM_TRACE, "GUESSING.... That's it - I'm giving up!\n");
HTResponse_setFormat(response, WWW_BINARY);
}
HTTRACE(STREAM_TRACE, "Guessed..... Content-Type `%s\'\n" _ HTAtom_name(HTResponse_format(response)));
/*
** Set up the new stream stack with the type we figured out
*/
if ((me->target = HTStreamStack(HTResponse_format(response),
me->output_format, me->output_stream,
me->request, NO)) == NULL) {
HTTRACE(STREAM_TRACE, "HTGuess..... Can't convert media type\n");
me->target = HTErrorStream();
}
me->transparent = YES;
return PUT_BLOCK(me->buffer, me->cnt);
}
return HT_OK;
}
PRIVATE int SocketEvent (SOCKET soc, void * pVoid, HTEventType type)
{
raw_info * raw = (raw_info *) pVoid;
int status = HT_ERROR;
HTNet * net = raw->net;
HTRequest * request = raw->request;
HTHost * host = HTNet_host(net);
/*
** Check whether we have been interrupted or timed out
*/
if (type == HTEvent_BEGIN) {
raw->state = RAW_BEGIN;
} else if (type == HTEvent_CLOSE) { /* Interrupted */
RawCleanup(request, HT_INTERRUPTED);
return HT_OK;
} else if (type == HTEvent_TIMEOUT) {
HTRequest_addError(request, ERR_FATAL, NO, HTERR_TIME_OUT,
NULL, 0, "HTLoadSocket");
RawCleanup(request, HT_TIMEOUT);
return HT_OK;
} else if (type == HTEvent_END) {
RawCleanup(request, HT_OK);
return HT_OK;
}
/* Now jump into the state machine */
while (1) {
switch(raw->state) {
case RAW_BEGIN:
status = HTHost_accept(host, net, NULL);
host = HTNet_host(net);
if (status == HT_OK) {
raw->state = RAW_NEED_STREAM;
} else if (status == HT_WOULD_BLOCK || status == HT_PENDING) {
return HT_OK;
} else
raw->state = RAW_ERROR; /* Error or interrupt */
break;
case RAW_NEED_STREAM:
{
/*
** Create the stream pipe FROM the channel to the application.
** The target for the input stream pipe is set up using the
** stream stack.
*/
HTStream * in_stream =
HTStreamStack(WWW_RAW,
HTRequest_outputFormat(request),
HTRequest_outputStream(request),
request, YES);
HTNet_setReadStream(net, in_stream);
HTRequest_setOutputConnected(request, YES);
raw->state = RAW_READ;
break;
}
case RAW_READ:
status = HTHost_read(host, net);
if (status == HT_WOULD_BLOCK)
return HT_OK;
else if (status==HT_CLOSED)
raw->state = RAW_OK;
else
raw->state = RAW_ERROR;
break;
case RAW_OK:
RawCleanup(request, HT_OK);
return HT_OK;
break;
case RAW_ERROR:
RawCleanup(request, HT_ERROR);
return HT_OK;
break;
default:
HTDEBUGBREAK("Bad raw state %d\n" _ raw->state);
}
}
return HT_OK;
}
/* Partial Response MIME parser stream
** -----------------------------------
** In case we sent a Range conditional GET we may get back a partial
** response. This response must be appended to the already existing
** cache entry before presented to the user.
** We do this by continuing to load the new object into a temporary
** buffer and at the same time start the cache load of the already
** existing object. When we have loaded the cache we merge the two
** buffers.
*/
PUBLIC HTStream * HTMIMEPartial (HTRequest * request,
void * param,
HTFormat input_format,
HTFormat output_format,
HTStream * output_stream)
{
#ifndef NO_CACHE
HTParentAnchor * anchor = HTRequest_anchor(request);
HTFormat format = HTAnchor_format(anchor);
HTStream * pipe = NULL;
/*
** The merge stream is a place holder for where we can put data when it
** arrives. We have two feeds: one from the cache and one from the net.
** We call the stream stack already now to get the right output stream.
** We can do this as we already know the content type from when we got the
** first part of the object.
*/
HTStream * merge = HTMerge(HTStreamStack(format,
output_format, output_stream,
request, YES), 2);
/*
** Now we create the MIME parser stream in partial data mode. We also
** set the target to our merge stream.
*/
HTStream * me = HTMIMEConvert(request, param, input_format,
output_format, output_stream);
me->mode |= HT_MIME_PARTIAL;
me->target = merge;
#if 0
/* JK: this doesn't work because this work is repeated before */
/*
** Create the cache append stream, and a Tee stream
*/
{
HTStream * append = HTStreamStack(WWW_CACHE_APPEND, output_format,
output_stream, request, NO);
if (append) me->target = HTTee(me->target, append, NULL);
}
#endif
/*
** Create the pipe buffer stream to buffer the data that we read
** from the network
*/
if ((pipe = HTPipeBuffer(me->target, 0))) me->target = pipe;
/*
** Now start the second load from the cache. First we read this data from
** the cache and then we flush the data that we have read from the net.
*/
{
HTRequest * cache_request = HTRequest_new();
/*
** Set the output format to source and the output stream to the
** merge stream. As we have already set up the stream pipe, we just
** load it as source.
*/
HTRequest_setOutputFormat(cache_request, WWW_SOURCE);
HTRequest_setOutputStream(cache_request, merge);
/*
** Bind the anchor to the new request and also register a local
** AFTER filter to flush the pipe buffer so that we can get
** rest of the data through.
*/
HTRequest_setAnchor(cache_request, (HTAnchor *) anchor);
HTRequest_addBefore(cache_request, HTCacheLoadFilter, NULL, NULL,
HT_FILTER_FIRST, YES);
HTRequest_addAfter(cache_request, HTCacheFlushFilter, NULL, pipe,
HT_ALL, HT_FILTER_FIRST, YES);
HTTRACE(STREAM_TRACE, "Partial..... Starting cache load\n");
HTLoad(cache_request, NO);
}
return me;
#else
return NULL;
#endif
}
PRIVATE void HTMIME_put_character ARGS2(HTStream *, me, char, c)
{
if (me->state == MIME_TRANSPARENT) {
(*me->targetClass.put_character)(me->target, c);/* MUST BE FAST */
return;
}
/* This slightly simple conversion just strips CR and turns LF to
** newline. On unix LF is \n but on Mac \n is CR for example.
** See NetToText for an implementation which preserves single CR or LF.
*/
if (me->net_ascii) {
c = FROMASCII(c);
if (c == CR) return;
else if (c == LF) c = '\n';
}
switch(me->state) {
case MIME_IGNORE:
return;
case MIME_TRANSPARENT: /* Not reached see above */
(*me->targetClass.put_character)(me->target, c);
return;
case MIME_NET_ASCII:
(*me->targetClass.put_character)(me->target, c); /* MUST BE FAST */
return;
case NEWLINE:
if (c != '\n' && WHITE(c)) { /* Folded line */
me->state = me->fold_state; /* pop state before newline */
break;
}
/* else Falls through */
case BEGINNING_OF_LINE:
switch(c) {
case 'c':
case 'C':
me->check_pointer = "ontent-t";
me->if_ok = CONTENT_T;
me->state = CHECK;
break;
case '\n': /* Blank line: End of Header! */
{
if (TRACE) fprintf(stderr,
"HTMIME: MIME content type is %s, converting to %s\n",
HTAtom_name(me->format), HTAtom_name(me->targetRep));
me->target = HTStreamStack(me->format, me->request, NO);
if (!me->target) {
if (TRACE) fprintf(stderr, "MIME: Can't translate! ** \n");
me->target = me->sink; /* Cheat */
}
if (me->target) {
me->targetClass = *me->target->isa;
/* Check for encoding and select state from there @@ */
me->state = MIME_TRANSPARENT; /* From now push straigh through */
} else {
me->state = MIME_IGNORE; /* What else to do? */
}
}
break;
default:
goto bad_field_name;
break;
} /* switch on character */
break;
case CHECK: /* Check against string */
if (TOLOWER(c) == *(me->check_pointer)++) {
if (!*me->check_pointer) me->state = me->if_ok;
} else { /* Error */
if (TRACE) fprintf(stderr,
"HTMIME: Bad character `%c' found where `%s' expected\n",
c, me->check_pointer - 1);
goto bad_field_name;
}
break;
case CONTENT_T:
switch(c) {
case 'r':
case 'R':
me->check_pointer = "ansfer-encoding:";
me->if_ok = CONTENT_TRANSFER_ENCODING;
me->state = CHECK;
break;
case 'y':
case 'Y':
me->check_pointer = "pe:";
me->if_ok = CONTENT_TYPE;
me->state = CHECK;
break;
default:
goto bad_field_name;
} /* switch on character */
break;
case CONTENT_TYPE:
case CONTENT_TRANSFER_ENCODING:
me->field = me->state; /* remember it */
me->state = SKIP_GET_VALUE;
/* Fall through! */
case SKIP_GET_VALUE:
if (c == '\n') {
me->fold_state = me->state;
me->state = NEWLINE;
break;
}
if (WHITE(c)) break; /* Skip white space */
me->value_pointer = me->value;
me->state = GET_VALUE;
/* Fall through to store first character */
case GET_VALUE:
if (WHITE(c)) { /* End of field */
*me->value_pointer = 0;
switch (me->field) {
case CONTENT_TYPE:
me->format = HTAtom_for(me->value);
break;
case CONTENT_TRANSFER_ENCODING:
me->encoding = HTAtom_for(me->value);
break;
default: /* Should never get here */
break;
}
} else {
if (me->value_pointer < me->value + VALUE_SIZE - 1) {
*me->value_pointer++ = c;
break;
} else {
goto value_too_long;
}
}
/* Fall through */
case JUNK_LINE:
if (c == '\n') {
me->state = NEWLINE;
me->fold_state = me->state;
}
break;
} /* switch on state*/
return;
value_too_long:
if (TRACE) fprintf(stderr,
"HTMIME: *** Syntax error. (string too long)\n");
bad_field_name: /* Ignore it */
me->state = JUNK_LINE;
return;
}
