/* Converter from \n to CRLF
** -------------------------
** The input is assumed to be in local representation with lines
** delimited by \n. The \n when found is changed to a CRLF sequence,
** the network representation of a new line.
** Conversion: '\r' is stripped and \n => CRLF
*/
PRIVATE int TextToNet_put_block (HTStream * me, const char* b, int len)
{
int status;
#if 0
const char *limit = b+len;
#endif
if (!me->start)
me->start = b;
else {
len -= (me->start - b);
b = me->start;
}
while (len-- > 0) {
if (me->had_cr && *b == LF) {
if (b > me->start+1) {
if ((status = PUTBLOCK(me->start, b - me->start-1)) != HT_OK)
return status;
}
me->start = b+1;
if ((status = PUTC('\n')) != HT_OK)
return status;
}
me->had_cr = (*b++ == CR);
}
if (me->start < b && (status = PUTBLOCK(me->start, b-me->start)) != HT_OK)
return status;
me->start = NULL; /* Whole buffer is written :-) */
return HT_OK;
}
/* Converter from CRLF to \n
** -------------------------
** The input is assumed to be in local representation with lines
** delimited by (CR,LF) pairs in the local representation.
** The conversion to local representation is always done in HTSocket.c
** The (CR,LF) sequence when found is changed to a '\n' character,
** the internal C representation of a new line.
*/
PRIVATE int NetToText_put_block (HTStream * me, const char * s, int l)
{
int status;
if (!me->start)
me->start = s;
else {
l -= (me->start - s);
s = me->start;
}
while (l-- > 0) {
if (me->had_cr && *s == LF) {
if (s > me->start+1) {
if ((status = PUTBLOCK(me->start, s - me->start-1)) != HT_OK)
return status;
}
me->start = s+1;
if ((status = PUTC('\n')) != HT_OK)
return status;
}
me->had_cr = (*s++ == CR);
}
if (me->start < s && (status = PUTBLOCK(me->start, s-me->start)) != HT_OK)
return status;
me->start = NULL; /* Whole buffer is written :-) */
return HT_OK;
}
/*
** Searches for NNTP header line until buffer fills up or a CRLF or LF
** is found
*/
PRIVATE int HTNewsStatus_put_block (HTStream * me, const char * b, int l)
{
int status;
HTHost_setConsumed(me->host, l);
while (!me->semi_trans && l-- > 0) {
if (me->EOLstate == EOL_FCR) {
if (*b == LF) {
if (me->junk) me->junk = NO;
me->EOLstate = EOL_BEGIN;
if ((status = ScanResponse(me)) != HT_LOADED) return status;
}
} else if (*b == CR) {
me->EOLstate = EOL_FCR;
} else if (*b == LF) {
if (me->junk) me->junk = NO;
me->EOLstate = EOL_BEGIN;
if ((status = ScanResponse(me)) != HT_LOADED) return status;
} else {
*(me->buffer+me->buflen++) = *b;
if (me->buflen >= MAX_NEWS_LINE) {
HTTRACE(PROT_TRACE, "News Status. Line too long - chopped\n");
me->junk = YES;
if ((status = ScanResponse(me)) != HT_LOADED) return status;
}
}
b++;
}
/*
** Now see if we have parts of the body to put down the stream pipe.
** At this point we are looking for CRLF.CRLF. We are guaranteed a stream
*/
if (l > 0) {
int rest = l;
const char *ptr = b;
while (rest-- > 0) {
if (*ptr == CR) {
me->EOLstate = me->EOLstate==EOL_DOT ? EOL_SCR : EOL_FCR;
} else if (*ptr == '.') {
me->EOLstate = me->EOLstate==EOL_FLF ? EOL_DOT : EOL_BEGIN;
} else if (*ptr == LF) {
me->EOLstate = me->EOLstate>EOL_DOT ? EOL_SLF : EOL_FLF;
} else
me->EOLstate = EOL_BEGIN;
ptr++;
}
if (me->EOLstate == EOL_SLF) {
int status = PUTBLOCK(b, l-5);
return status != HT_OK ? status : HT_LOADED;
} else {
int status = PUTBLOCK(b, l);
return status;
}
}
return HT_LOADED;
}
PRIVATE int HTTPReply_put_block (HTStream * me, const char * b, int l)
{
if (me->transparent)
return b ? PUTBLOCK(b, l) : HT_OK;
else {
MakeReplyPipe(me, me->request);
me->transparent = YES;
return b ? PUTBLOCK(b, l) : HT_OK;
}
}
PRIVATE int HTTPResponse_put_block (HTStream * me, const char * b, int l)
{
if (me->target) {
if (me->transparent)
return PUTBLOCK(b, l);
else {
HTTPMakeResponse(me, me->request); /* Generate header */
me->transparent = YES;
return b ? PUTBLOCK(b, l) : HT_OK;
}
}
return HT_WOULD_BLOCK;
}
NAMESPACE_END
void RC6Encryption::ProcessBlock(const byte *in, byte *out) const
{
const RC6_WORD *sptr = sTable;
RC6_WORD a, b, c, d, t, u;
GETBLOCK(in, a, b, c, d);
b += sptr[0];
d += sptr[1];
sptr += 2;
for(unsigned i=0; i<r; i++)
{
t = ROTL(b*(2*b+1), 5);
u = ROTL(d*(2*d+1), 5);
a = ROTL(a^t,u) + sptr[0];
c = ROTL(c^u,t) + sptr[1];
t = a; a = b; b = c; c = d; d = t;
sptr += 2;
}
a += sptr[0];
c += sptr[1];
PUTBLOCK(out, a, b, c, d);
}
void RC6Decryption::ProcessBlock(const byte *in, byte *out) const
{
const RC6_WORD *sptr = sTable+sTable.size;
RC6_WORD a, b, c, d, t, u;
GETBLOCK(in, a, b, c, d);
sptr -= 2;
c -= sptr[1];
a -= sptr[0];
for (unsigned i=0; i < r; i++)
{
sptr -= 2;
t = a; a = d; d = c; c = b; b = t;
u = ROTL(d*(2*d+1), 5);
t = ROTL(b*(2*b+1), 5);
c = ROTR(c-sptr[1], t) ^ u;
a = ROTR(a-sptr[0], u) ^ t;
}
sptr -= 2;
d -= sTable[1];
b -= sTable[0];
PUTBLOCK(out, a, b, c, d);
}
/* HTTPMakeResponse
** ----------------
** Makes a HTTP/1.0-1.1 response header.
*/
PRIVATE int HTTPMakeResponse (HTStream * me, HTRequest * request)
{
char crlf[3];
HTRsHd response_mask = HTRequest_rsHd(request);
*crlf = CR; *(crlf+1) = LF; *(crlf+2) = '\0';
if (response_mask & HT_S_LOCATION) { /* @@@ */
}
if (response_mask & HT_S_PROXY_AUTH) { /* @@@ */
}
if (response_mask & HT_S_PUBLIC) { /* @@@ */
}
if (response_mask & HT_S_RETRY_AFTER) { /* @@@ */
}
if (response_mask & HT_S_SERVER) {
PUTS("Server: ");
PUTS(HTLib_appName());
PUTC('/');
PUTS(HTLib_appVersion());
PUTC(' ');
PUTS(HTLib_name());
PUTC('/');
PUTS(HTLib_version());
PUTBLOCK(crlf, 2);
}
if (response_mask & HT_S_WWW_AUTH) { /* @@@ */
}
HTTRACE(PROT_TRACE, "HTTP........ Generating Response Headers\n");
return HT_OK;
}
PRIVATE int NewsPost_put_block (HTStream * me, const char* b, int l)
{
if (!me->target) {
return HT_WOULD_BLOCK;
} else if (me->transparent)
return b ? PUTBLOCK(b, l) : HT_OK;
else {
int status;
NewsPost_start(me, me->request);
if ((status = PUTBLOCK(HTChunk_data(me->buffer),
HTChunk_size(me->buffer))) == HT_OK) {
me->transparent = YES;
return b ? PUTBLOCK(b, l) : HT_OK;
}
return status;
}
}
PRIVATE int HTBufferWriter_write (HTOutputStream * me, const char * buf, int len)
{
int status;
while (1) {
int available = me->data + me->allocated - me->read;
/* If we have enough buffer space */
if (len <= available) {
int size = 0;
memcpy(me->read, buf, len);
me->read += len;
/* If we have accumulated enough data then flush */
if ((size = me->read - me->data) > me->growby) {
me->lastFlushTime = HTGetTimeInMillis();
status = PUTBLOCK(me->data, size);
if (status == HT_OK) {
me->read = me->data;
} else {
return (status == HT_WOULD_BLOCK) ? HT_OK : HT_ERROR;
}
}
return HT_OK;
} else {
/* Fill the existing buffer (if not already) and flush */
if (available) {
memcpy(me->read, buf, available);
buf += available;
len -= available;
me->read += available;
}
me->lastFlushTime = HTGetTimeInMillis();
status = PUTBLOCK(me->data, me->allocated);
if (status == HT_OK) {
me->read = me->data;
} else if (status == HT_WOULD_BLOCK) {
HTBufferWriter_addBuffer(me, len);
memcpy(me->read, buf, len);
me->read += len;
return HT_OK;
}
}
}
}
/* NewsPost_end
** ------------
** End the posting by CRLF.CRLF
** returns whatever PUT_BLOCK returns
*/
PRIVATE int NewsPost_end (HTStream * me)
{
char buf[6];
*buf = CR;
*(buf+1) = LF;
*(buf+2) = '.';
*(buf+3) = CR;
*(buf+4) = LF;
*(buf+5) = '\0';
return PUTBLOCK(buf, 5);
}
PRIVATE int HTTPRequest_put_block (HTStream * me, const char * b, int l)
{
if (!me->target) {
return HT_WOULD_BLOCK;
} else if (me->transparent)
return b ? PUTBLOCK(b, l) : HT_OK;
else {
int status = HT_OK;
if (me->version == HTTP_09) {
status = HTTP09Request(me, me->request);
if (status != HT_OK) return status;
} else {
status = HTTPMakeRequest(me, me->request);
if (status != HT_OK) return status;
me->transparent = YES;
return b ? PUTBLOCK(b, l) : HT_OK;
}
return status;
}
}
/*
** This function is only called from either FlushEvent or HTBufferWriter_lazyFlush
** which means that only the host object or timeout can cause a flush
*/
PRIVATE int HTBufferWriter_flush (HTOutputStream * me)
{
int status = HT_OK;
if (me && me->read > me->data) {
me->lastFlushTime = HTGetTimeInMillis();
if ((status = PUTBLOCK(me->data, me->read - me->data))==HT_WOULD_BLOCK)
return HT_WOULD_BLOCK;
me->read = me->data;
}
return status;
}
/*
** After flushing the buffer we go into transparent mode so that we still
** can handle incoming data. If we already are in transparent mode then
** don't do anything.
*/
PRIVATE int buf_flush (HTStream * me)
{
if (me->state != HT_BS_TRANSPARENT) {
HTBufItem * cur;
if (me->tmp_buf) append_buf(me);
while ((cur = me->head)) {
int status;
if ((status = PUTBLOCK(cur->buf, cur->len)) != HT_OK) {
return status;
}
me->head = cur->next;
free_buf(cur);
}
/* If we are not a pipe then do no more buffering */
if ((me->mode & HT_BM_PIPE)) me->state = HT_BS_TRANSPARENT;
}
return (*me->target->isa->flush)(me->target);
}
/*
** Searches for HTTP Request Line before going into transparent mode
*/
PRIVATE int HTTPReceive_put_block (HTStream * me, const char * b, int l)
{
if (!me->transparent) {
const char *p=b;
while (l>0 && *p!=CR && *p!=LF) l--, p++;
HTChunk_putb(me->buffer, b, p-b);
if (*p==CR || *p==LF) {
int status = ParseRequest(me);
HTChunk_clear(me->buffer);
if (status != HT_OK) return status;
me->transparent = YES;
b=p;
}
}
if (l > 0) {
int status = PUTBLOCK(b, l);
if (status == HT_LOADED) me->transparent = NO;
return status;
}
return HT_OK;
}
PUBLIC int HTMuxChannel_sendControl (HTMuxChannel * muxch, HTMuxSessionId sid,
HTMuxHeader opcode, int value,
const void * param, int param_size)
{
if (muxch && muxch->host) {
HTOutputStream * me = HTChannel_output(HTHost_channel(muxch->host));
HTMuxHeader header[2];
switch (opcode) {
case MUX_STRING:
if (param && param_size) {
header[0] = HT_WORDSWAP(MUX_CONTROL | MUX_LONG_LENGTH | MUX_SET_LEN(value));
header[1] = HT_WORDSWAP(param_size);
PUTBLOCK((const char *) header, 8);
PUTBLOCK((const char *) param, MUX_LONG_ALIGN(param_size));
}
break;
case MUX_STACK:
if (param && param_size) {
header[0] = HT_WORDSWAP(MUX_CONTROL | MUX_LONG_LENGTH | MUX_SET_LEN(value));
header[1] = HT_WORDSWAP(param_size);
PUTBLOCK((const char *) header, 8);
PUTBLOCK((const char *) param, MUX_LONG_ALIGN(param_size));
}
break;
case MUX_FRAGMENT:
header[0] = HT_WORDSWAP(MUX_CONTROL | MUX_SET_SID(sid) | MUX_SET_LEN(value));
PUTBLOCK((const char *) header, 4);
break;
case MUX_CREDIT:
header[0] = HT_WORDSWAP(MUX_CONTROL | MUX_LONG_LENGTH | MUX_SET_SID(sid));
header[1] = HT_WORDSWAP(value);
PUTBLOCK((const char *) header, 8);
break;
default:
HTTRACE(MUX_TRACE, "Mux Channel. UNKNOWN OPCODE %d\n" _ opcode);
return HT_ERROR;
}
/* Flush for now */
#if 1
return (*me->isa->flush)(me);
#else
return HT_OK;
#endif
}
return HT_ERROR;
}
/* HTTPMakeRequest
** ---------------
** Makes a HTTP/1.0-1.1 request header.
*/
PRIVATE int HTTPMakeRequest (HTStream * me, HTRequest * request)
{
HTMethod method = HTRequest_method(request);
HTRqHd request_mask = HTRequest_rqHd(request);
HTParentAnchor * anchor = HTRequest_anchor(request);
char * etag = HTAnchor_etag(anchor);
char crlf[3];
char qstr[10];
*crlf = CR; *(crlf+1) = LF; *(crlf+2) = '\0';
/* Generate the HTTP/1.x RequestLine */
if (me->state == 0) {
if (method != METHOD_INVALID) {
PUTS(HTMethod_name(method));
PUTC(' ');
} else
PUTS("GET ");
me->state++;
}
/*
** Generate the Request URI. If we are using full request URI then it's
** easy. Otherwise we must filter out the path part of the URI.
** In case it's a OPTIONS request then if there is no pathinfo then use
** a * instead. If we use a method different from GET or HEAD then use
** the content-location if available.
*/
if (me->state == 1) {
char * abs_location = NULL;
char * addr = HTAnchor_physical(anchor);
char * location;
/* JK: If the application specified a content-location (which is
stored in the request in default put-name!), we use it instead
of the URL that's being saved to. This is like having a user
defined Content-Location */
location = HTRequest_defaultPutName (request);
if (location)
{
if (HTURL_isAbsolute (location))
{
char * relative;
relative = HTRelative (location, location);
abs_location = HTParse (relative + 2, addr, PARSE_ALL);
HT_FREE (relative);
}
else
abs_location = HTParse (location, addr, PARSE_ALL);
addr = abs_location;
}
#if 0
/*
** We don't use the content-location any more as it is superseeded
** by etags and the combination of the two might do more harm than
** good (The etag is not guaranteed to be unique over multiple URIs)
*/
/*
** If we are using a method different from HEAD and GET then use
** the Content-Location if available, else the Request-URI.
*/
if (!HTMethod_isSafe(method)) {
char * location = HTAnchor_location(anchor);
if (location) {
if (HTURL_isAbsolute(location))
addr = location;
else {
/*
** We have a content-location but it is relative and
** must expand it either to the content-base or to
** the Request-URI itself.
*/
char * base = HTAnchor_base(anchor);
abs_location = HTParse(location, base, PARSE_ALL);
addr = abs_location;
}
}
}
#endif
/*
** If we are using a proxy or newer versions of HTTP then we can
** send the full URL. Otherwise we only send the path.
*/
if (HTRequest_fullURI(request))
StrAllocCopy(me->url, addr);
else {
me->url = HTParse(addr, "", PARSE_PATH | PARSE_PUNCTUATION);
if (method == METHOD_OPTIONS) {
/*
** We don't preserve the final slash or lack of same through
** out the code. This is mainly for optimization reasons
** but it gives a problem OPTIONS. We can either send a "*"
** or a "/" but not both. For now we send a "*".
*/
if (!strcmp(me->url, "/")) *me->url = '*';
}
}
HT_FREE(abs_location);
me->state++;
}
/*
** Now send the URL that we have put together
*/
if (me->state == 2) {
int status = HT_OK;
if ((status = PUTS(me->url)) != HT_OK) return status;
me->state++;
#if 0
fprintf(stderr, "Requesting '%s'\n", me->url);
#endif
}
PUTC(' ');
/*
** Send out the version number. If we know it is a HTTP/1.0 server we
** are talking to then use HTTP/1.0, else use HTTP/1.1 as default version
** number
*/
if (me->version == HTTP_10)
PUTS(HTTP_VERSION_10);
else
PUTS(HTTP_VERSION);
PUTBLOCK(crlf, 2);
/* Request Headers */
if (request_mask & HT_C_ACCEPT_TYPE) {
HTFormat format = HTRequest_outputFormat(request);
/*
** If caller has specified a specific output format then use this.
** Otherwise use all the registered converters to generate the
** accept header
*/
if (format == WWW_PRESENT) {
int list;
HTList *cur;
BOOL first=YES;
for (list=0; list<2; list++) {
if ((!list && ((cur = HTFormat_conversion()) != NULL)) ||
(list && ((cur = HTRequest_conversion(request))!=NULL))) {
HTPresentation * pres;
while ((pres=(HTPresentation *) HTList_nextObject(cur))) {
if (pres->rep_out==WWW_PRESENT && pres->quality<=1.0) {
if (first) {
PUTS("Accept: ");
first=NO;
} else
PUTC(',');
PUTS(HTAtom_name(pres->rep));
if (pres->quality < 1.0 && pres->quality >= 0.0) {
sprintf(qstr, ";q=%1.1f", pres->quality);
PUTS(qstr);
}
}
}
}
}
if (!first) PUTBLOCK(crlf, 2);
} else {
/*
** If we have an explicit output format then only send
** this one if not this is an internal libwww format
** of type www/<star>
*/
if (!HTMIMEMatch(WWW_INTERNAL, format)) {
PUTS("Accept: ");
PUTS(HTAtom_name(format));
PUTBLOCK(crlf, 2);
}
}
}
if (request_mask & HT_C_ACCEPT_CHAR) {
int list;
HTList *cur;
BOOL first=YES;
for (list=0; list<2; list++) {
if ((!list && ((cur = HTFormat_charset()) != NULL)) ||
(list && ((cur = HTRequest_charset(request)) != NULL))) {
HTAcceptNode *pres;
while ((pres = (HTAcceptNode *) HTList_nextObject(cur))) {
if (first) {
PUTS("Accept-Charset: ");
first=NO;
} else
PUTC(',');
PUTS(HTAtom_name(pres->atom));
if (pres->quality < 1.0 && pres->quality >= 0.0) {
sprintf(qstr, ";q=%1.1f", pres->quality);
PUTS(qstr);
}
}
}
}
if (!first) PUTBLOCK(crlf, 2);
}
if (request_mask & HT_C_ACCEPT_ENC) {
int list;
HTList *cur;
BOOL first=YES;
for (list=0; list<2; list++) {
if ((!list && ((cur = HTFormat_contentCoding()) != NULL)) ||
(list && ((cur = HTRequest_encoding(request)) != NULL))) {
HTCoding * pres;
while ((pres = (HTCoding *) HTList_nextObject(cur))) {
double quality = HTCoding_quality(pres);
if (first) {
PUTS("Accept-Encoding: ");
first = NO;
} else
PUTC(',');
PUTS(HTCoding_name(pres));
if (quality < 1.0 && quality >= 0.0) {
sprintf(qstr, ";q=%1.1f", quality);
PUTS(qstr);
}
}
}
}
if (!first) PUTBLOCK(crlf, 2);
}
if (request_mask & HT_C_ACCEPT_TE) {
int list;
HTList *cur;
BOOL first=YES;
for (list=0; list<2; list++) {
if ((!list && ((cur = HTFormat_transferCoding()) != NULL)) ||
(list && ((cur = HTRequest_transfer(request)) != NULL))) {
HTCoding * pres;
while ((pres = (HTCoding *) HTList_nextObject(cur))) {
double quality = HTCoding_quality(pres);
const char * coding = HTCoding_name(pres);
if (first) {
PUTS("TE: ");
first = NO;
} else
PUTC(',');
/* Special check for "chunked" which is translated to "trailers" */
if (!strcasecomp(coding, "chunked"))
PUTS("trailers");
else
PUTS(coding);
if (quality < 1.0 && quality >= 0.0) {
sprintf(qstr, ";q=%1.1f", quality);
PUTS(qstr);
}
}
}
}
if (!first) PUTBLOCK(crlf, 2);
}
if (request_mask & HT_C_ACCEPT_LAN) {
int list;
HTList *cur;
BOOL first=YES;
for (list=0; list<2; list++) {
if ((!list && ((cur = HTFormat_language()) != NULL)) ||
(list && ((cur = HTRequest_language(request)) != NULL))) {
HTAcceptNode *pres;
while ((pres = (HTAcceptNode *) HTList_nextObject(cur))) {
if (first) {
PUTS("Accept-Language: ");
first=NO;
} else
PUTC(',');
PUTS(HTAtom_name(pres->atom));
if (pres->quality < 1.0 && pres->quality >= 0.0) {
sprintf(qstr, ";q=%1.1f", pres->quality);
PUTS(qstr);
}
}
}
}
if (!first) PUTBLOCK(crlf, 2);
}
if (request_mask & HT_C_AUTH) {
HTAssocList * cur = HTRequest_credentials(request);
if (cur) { /* Access authentication */
HTAssoc * pres;
while ((pres = (HTAssoc *) HTAssocList_nextObject(cur))) {
PUTS(HTAssoc_name(pres));
PUTS(": ");
PUTS(HTAssoc_value(pres));
PUTBLOCK(crlf, 2);
}
}
}
if (request_mask & HT_C_EXPECT) {
HTAssocList * cur = HTRequest_expect(request);
if (cur) {
BOOL first=YES;
HTAssoc * pres;
while ((pres = (HTAssoc *) HTAssocList_nextObject(cur))) {
char * value = HTAssoc_value(pres);
if (first) {
PUTS("Expect: ");
first = NO;
} else
PUTC(',');
/* Output the name */
PUTS(HTAssoc_name(pres));
/* Only output the value if not empty string */
if (*value) {
PUTS("=");
PUTS(value);
}
}
PUTBLOCK(crlf, 2);
}
}
if (request_mask & HT_C_FROM) {
HTUserProfile * up = HTRequest_userProfile(request);
const char * mailaddress = HTUserProfile_email(up);
if (mailaddress) {
PUTS("From: ");
PUTS(mailaddress);
PUTBLOCK(crlf, 2);
}
}
if (request_mask & HT_C_HOST) {
char *orig = HTAnchor_address((HTAnchor *) anchor);
char *host = HTParse(orig, "", PARSE_HOST);
char hostace[256];
#if 0
/* Keep the port number for HTTP/1.1 compliance */
char *ptr = strchr(host, ':'); /* Chop off port number */
if (ptr) *ptr = '\0';
#endif
PUTS("Host: ");
/****** still have to check UTF8toACE with port number */
if (!HTACEfromUTF8 (host, hostace, 255)) {
PUTS(hostace);
}
else {
PUTS(host); /* this may be dangerous, but helps server side debugging */
HTTRACE(PROT_TRACE, "HTTP........ Error: Cannot convert to ACE: `%s\'\n" _ host);
}
PUTBLOCK(crlf, 2);
HT_FREE(orig);
HT_FREE(host);
}
/*
** In the "If-*" series of headers, the ones related to etags have higher
** priority than the date relates ones. That is, if we have a etag then
** use that, otherwise use the date. First we check for range, match, and
** unmodified-since.
*/
if (request_mask & HT_C_IF_RANGE && etag) {
PUTS("If-Range: \"");
PUTS(etag);
PUTC('"');
PUTBLOCK(crlf, 2);
HTTRACE(PROT_TRACE, "HTTP........ If-Range using etag `%s\'\n" _ etag);
} else if (request_mask & HT_C_IF_MATCH_ANY) {
PUTS("If-Match: *");
PUTBLOCK(crlf, 2);
HTTRACE(PROT_TRACE, "HTTP........ If-Match using `*\'\n");
} else if (request_mask & HT_C_IF_MATCH && etag) {
PUTS("If-Match: \"");
PUTS(etag);
PUTC('"');
PUTBLOCK(crlf, 2);
HTTRACE(PROT_TRACE, "HTTP........ If-Match using etag `%s\'\n" _ etag);
} else if (request_mask & HT_C_IF_UNMOD_SINCE) {
time_t lm = HTAnchor_lastModified(anchor);
if (lm > 0) {
PUTS("If-Unmodified-Since: ");
PUTS(HTDateTimeStr(&lm, NO));
PUTBLOCK(crlf, 2);
HTTRACE(PROT_TRACE, "HTTP........ If-Unmodified-Since `%s\'\n" _ HTDateTimeStr(&lm, NO));
}
}
/*
** If-None-Match and If-Modified-Since are equivalent except that the
** first uses etags and the second uses dates. Etags have precedence over
** dates.
*/
if (request_mask & HT_C_IF_NONE_MATCH_ANY) {
PUTS("If-None-Match: *");
PUTBLOCK(crlf, 2);
HTTRACE(PROT_TRACE, "HTTP........ If-None-Match using `*\'\n");
} else if (request_mask & HT_C_IF_NONE_MATCH && etag) {
PUTS("If-None-Match: \"");
PUTS(etag);
PUTC('"');
PUTBLOCK(crlf, 2);
HTTRACE(PROT_TRACE, "HTTP........ If-None-Match `%s\'\n" _ etag);
}
if (request_mask & HT_C_IMS) {
time_t lm = HTAnchor_lastModified(anchor);
if (lm > 0) {
PUTS("If-Modified-Since: ");
PUTS(HTDateTimeStr(&lm, NO));
PUTBLOCK(crlf, 2);
HTTRACE(PROT_TRACE, "HTTP........ If-Modified-Since `%s\'\n" _ HTDateTimeStr(&lm, NO));
}
}
/*
** Max forwards is mainly for TRACE where we want to be able to stop the
** TRACE at a specific location un the message path.
*/
if (request_mask & HT_C_MAX_FORWARDS) {
int hops = HTRequest_maxForwards(request);
if (hops >= 0) {
sprintf(qstr, "%d", hops);
PUTS("Max-Forwards: ");
PUTS(qstr);
PUTBLOCK(crlf, 2);
}
}
/*
** Range requests. For now, we only take the first entry registered for
** this request. This means that you can only send a single "unit" and
** then a set of range within this unit. This is in accordance with
** HTTP/1.1. Multiple units will go on multiple lines.
*/
if (request_mask & HT_C_RANGE) {
HTAssocList * cur = HTRequest_range(request);
if (cur) { /* Range requests */
HTAssoc * pres;
while ((pres = (HTAssoc *) HTAssocList_nextObject(cur))) {
PUTS("Range: ");
PUTS(HTAssoc_name(pres)); /* Unit */
PUTS("=");
PUTS(HTAssoc_value(pres)); /* Ranges within this unit */
PUTBLOCK(crlf, 2);
}
}
}
if (request_mask & HT_C_REFERER) {
HTParentAnchor * parent_anchor = HTRequest_parent(request);
if (parent_anchor) {
char * act = HTAnchor_address((HTAnchor *) anchor);
char * parent = HTAnchor_address((HTAnchor *) parent_anchor);
#if 1
char * relative = HTRelative(parent, act);
#else
char * relative = HTParse(parent, act,
PARSE_ACCESS|PARSE_HOST|PARSE_PATH|PARSE_PUNCTUATION);
#endif
if (relative && *relative) {
PUTS("Referer: ");
PUTS(relative);
PUTBLOCK(crlf, 2);
}
HT_FREE(act);
HT_FREE(parent);
HT_FREE(relative);
}
}
if (request_mask & HT_C_USER_AGENT) {
PUTS("User-Agent: ");
PUTS(HTLib_appName());
PUTC('/');
PUTS(HTLib_appVersion());
PUTC(' ');
PUTS(HTLib_name());
PUTC('/');
PUTS(HTLib_version());
PUTBLOCK(crlf, 2);
}
HTTRACE(PROT_TRACE, "HTTP........ Generating HTTP/1.x Request Headers\n");
return HT_OK;
}
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;
}
PRIVATE int buf_put_block (HTStream * me, const char * b, int l)
{
/*
** If we are in pause mode then don't write anything but return PAUSE.
** The upper stream should then respect it and don't write any more data.
*/
if (me->state == HT_BS_PAUSE) return HT_PAUSE;
/*
** Start handling the incoming data. If we are still buffering then add
** it to the buffer. Otherwise just pump it through. Note that we still
** count the length - even if we have given up buffering!
*/
me->conlen += l;
if (me->state != HT_BS_TRANSPARENT) {
/*
** If there is still room in the existing chunk then fill it up.
** Otherwise create a new chunk and add it to the linked list of
** chunks. If the buffer fills up then either return HT_PAUSE or
** flush it and go transparent.
*/
if (me->tmp_buf && me->tmp_max-me->tmp_ind >= l) { /* Still room */
memcpy(me->tmp_buf + me->tmp_ind, b, l);
me->tmp_ind += l;
return HT_OK;
} else {
/*
** Add the temporary buffer (if any) to the list of chunks
*/
if (me->tmp_buf) append_buf(me);
/*
** Find the right size of the next chunk. We increase the size
** exponentially until we reach HT_MAX_BLOCK in order to minimize
** the number of mallocs.
*/
if (me->cur_size < HT_MAX_BLOCK) {
int newsize = me->cur_size ? me->cur_size : HT_MIN_BLOCK;
while (l > newsize && newsize < HT_MAX_BLOCK) newsize *= 2;
me->cur_size = newsize;
}
if (alloc_new(me, me->cur_size)) {
/* Buffer could accept the new data */
memcpy(me->tmp_buf, b, l);
me->tmp_ind = l;
} else if (me->mode & HT_BM_DELAY) {
/* Buffer ran full and we pause */
me->state = HT_BS_PAUSE;
HTTRACE(STREAM_TRACE, "Buffer....... Paused\n");
return HT_PAUSE;
} else {
/* Buffer ran full and we flush and go transparent */
int status = buf_flush(me);
if (status != HT_OK) return status;
}
}
}
/*
** If we couldn't buffer the data then check whether we should give up
** or pause the stream. If we are in transparent mode then put the rest
** of the data down the pipe.
*/
if (me->state == HT_BS_TRANSPARENT) return PUTBLOCK(b, l);
return HT_OK;
}
