/*
** Redirection AFTER filter
** ------------------------
** The redirection handler only handles redirections
** on the GET or HEAD method (or any other safe method)
*/
PUBLIC int HTRedirectFilter (HTRequest * request, HTResponse * response,
void * param, int status)
{
HTMethod method = HTRequest_method(request);
HTAnchor * new_anchor = HTResponse_redirection(response);
/* Check for destination */
if (!new_anchor) {
HTTRACE(PROT_TRACE, "Redirection. No destination\n");
return HT_OK;
}
/*
** Only do automatic redirect on GET and HEAD. Ask for all
** other methods.
*/
if (!HTMethod_isSafe(method)) {
/*
** If we got a 303 See Other then change the method to GET.
** Otherwise ask the user whether we should continue.
*/
if (status == HT_SEE_OTHER) {
HTTRACE(PROT_TRACE, "Redirection. Changing method from %s to GET\n" _
HTMethod_name(method));
HTRequest_setMethod(request, METHOD_GET);
} else {
HTAlertCallback * prompt = HTAlert_find(HT_A_CONFIRM);
if (prompt) {
if ((*prompt)(request, HT_A_CONFIRM, HT_MSG_REDIRECTION,
NULL, NULL, NULL) != YES)
return HT_OK;
}
}
}
/* Register the redirection as a link relationship */
{
HTLinkType ltype = status==HT_PERM_REDIRECT ? HT_LR_PERM_REDIRECT :
(status==HT_TEMP_REDIRECT || status==HT_FOUND) ? HT_LR_TEMP_REDIRECT :
status==HT_SEE_OTHER ? HT_LR_SEE_OTHER : NULL;
if (ltype) {
HTLink_add((HTAnchor *) HTRequest_anchor(request), new_anchor,
ltype, method);
}
}
/* Delete any auth credendials as they get regenerated */
HTRequest_deleteCredentialsAll(request);
/*
** Start new request with the redirect anchor found in the headers.
** Note that we reuse the same request object which means that we must
** keep this around until the redirected request has terminated. It also
** allows us in an easy way to keep track of the number of redirections
** so that we can detect endless loops.
*/
if (HTRequest_doRetry(request)) {
HTLoadAnchor(new_anchor, request);
} else {
HTRequest_addError(request, ERR_FATAL, NO, HTERR_MAX_REDIRECT,
NULL, 0, "HTRedirectFilter");
return HT_OK; /* Wanna fall through */
}
/*
** By returning HT_ERROR we make sure that this is the last handler to be
** called. We do this as we don't want any other filter to delete the
** request object now when we have just started a new one ourselves
*/
return HT_ERROR;
}
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) */
}
/* 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;
}
