/*
* Returns a message to the client ; the connection is shut down for read,
* and the request is cleared so that no server connection can be initiated.
* The buffer is marked for read shutdown on the other side to protect the
* message, and the buffer write is enabled. The message is contained in a
* "chunk". If it is null, then an empty message is used. The reply buffer does
* not need to be empty before this, and its contents will not be overwritten.
* The primary goal of this function is to return error messages to a client.
*/
void stream_int_retnclose(struct stream_interface *si, const struct chunk *msg)
{
buffer_auto_read(si->ib);
buffer_abort(si->ib);
buffer_auto_close(si->ib);
buffer_erase(si->ib);
if (likely(msg && msg->len))
buffer_write(si->ob, msg->str, msg->len);
si->ob->wex = tick_add_ifset(now_ms, si->ob->wto);
buffer_auto_read(si->ob);
buffer_auto_close(si->ob);
buffer_shutr_now(si->ob);
}
/* This analyser tries to fetch a line from the request buffer which looks like :
*
* "PROXY" <SP> PROTO <SP> SRC3 <SP> DST3 <SP> SRC4 <SP> <DST4> "\r\n"
*
* There must be exactly one space between each field. Fields are :
* - PROTO : layer 4 protocol, which must be "TCP4" or "TCP6".
* - SRC3 : layer 3 (eg: IP) source address in standard text form
* - DST3 : layer 3 (eg: IP) destination address in standard text form
* - SRC4 : layer 4 (eg: TCP port) source address in standard text form
* - DST4 : layer 4 (eg: TCP port) destination address in standard text form
*
* This line MUST be at the beginning of the buffer and MUST NOT wrap.
*
* Once the data is fetched, the values are set in the session's field and data
* are removed from the buffer. The function returns zero if it needs to wait
* for more data (max: timeout_client), or 1 if it has finished and removed itself.
*/
int frontend_decode_proxy_request(struct session *s, struct buffer *req, int an_bit)
{
char *line = req->data;
char *end = req->data + req->l;
int len;
DPRINTF(stderr,"[%u] %s: session=%p b=%p, exp(r,w)=%u,%u bf=%08x bl=%d analysers=%02x\n",
now_ms, __FUNCTION__,
s,
req,
req->rex, req->wex,
req->flags,
req->l,
req->analysers);
if (req->flags & (BF_READ_ERROR|BF_READ_TIMEOUT))
goto fail;
len = MIN(req->l, 6);
if (!len)
goto missing;
/* Decode a possible proxy request, fail early if it does not match */
if (strncmp(line, "PROXY ", len) != 0)
goto fail;
line += 6;
if (req->l < 18) /* shortest possible line */
goto missing;
if (!memcmp(line, "TCP4 ", 5) != 0) {
u32 src3, dst3, sport, dport;
line += 5;
src3 = inetaddr_host_lim_ret(line, end, &line);
if (line == end)
goto missing;
if (*line++ != ' ')
goto fail;
dst3 = inetaddr_host_lim_ret(line, end, &line);
if (line == end)
goto missing;
if (*line++ != ' ')
goto fail;
sport = read_uint((const char **)&line, end);
if (line == end)
goto missing;
if (*line++ != ' ')
goto fail;
dport = read_uint((const char **)&line, end);
if (line > end - 2)
goto missing;
if (*line++ != '\r')
goto fail;
if (*line++ != '\n')
goto fail;
/* update the session's addresses and mark them set */
((struct sockaddr_in *)&s->si[0].addr.from)->sin_family = AF_INET;
((struct sockaddr_in *)&s->si[0].addr.from)->sin_addr.s_addr = htonl(src3);
((struct sockaddr_in *)&s->si[0].addr.from)->sin_port = htons(sport);
((struct sockaddr_in *)&s->si[0].addr.to)->sin_family = AF_INET;
((struct sockaddr_in *)&s->si[0].addr.to)->sin_addr.s_addr = htonl(dst3);
((struct sockaddr_in *)&s->si[0].addr.to)->sin_port = htons(dport);
s->flags |= SN_FRT_ADDR_SET;
}
else if (!memcmp(line, "TCP6 ", 5) != 0) {
u32 sport, dport;
char *src_s;
char *dst_s, *sport_s, *dport_s;
struct in6_addr src3, dst3;
line+=5;
src_s = line;
dst_s = sport_s = dport_s = NULL;
while (1) {
if (line > end - 2) {
goto missing;
}
else if (*line == '\r') {
*line = 0;
line++;
if (*line++ != '\n')
goto fail;
break;
}
if (*line == ' ') {
*line = 0;
if (!dst_s)
dst_s = line+1;
else if (!sport_s)
sport_s = line+1;
else if (!dport_s)
dport_s = line+1;
}
line++;
}
if (!dst_s || !sport_s || !dport_s)
goto fail;
sport = read_uint((const char **)&sport_s,dport_s-1);
if ( *sport_s != 0 )
goto fail;
dport = read_uint((const char **)&dport_s,line-2);
if ( *dport_s != 0 )
goto fail;
if (inet_pton(AF_INET6, src_s, (void *)&src3) != 1)
goto fail;
if (inet_pton(AF_INET6, dst_s, (void *)&dst3) != 1)
goto fail;
/* update the session's addresses and mark them set */
((struct sockaddr_in6 *)&s->si[0].addr.from)->sin6_family = AF_INET6;
memcpy(&((struct sockaddr_in6 *)&s->si[0].addr.from)->sin6_addr, &src3, sizeof(struct in6_addr));
((struct sockaddr_in6 *)&s->si[0].addr.from)->sin6_port = htons(sport);
((struct sockaddr_in6 *)&s->si[0].addr.to)->sin6_family = AF_INET6;
memcpy(&((struct sockaddr_in6 *)&s->si[0].addr.to)->sin6_addr, &dst3, sizeof(struct in6_addr));
((struct sockaddr_in6 *)&s->si[0].addr.to)->sin6_port = htons(dport);
s->flags |= SN_FRT_ADDR_SET;
}
else {
goto fail;
}
/* remove the PROXY line from the request */
len = line - req->data;
buffer_replace2(req, req->data, line, NULL, 0);
req->total -= len; /* don't count the header line */
req->analysers &= ~an_bit;
return 1;
missing:
if (!(req->flags & (BF_SHUTR|BF_FULL))) {
buffer_dont_connect(s->req);
return 0;
}
/* missing data and buffer is either full or shutdown => fail */
fail:
buffer_abort(req);
buffer_abort(s->rep);
req->analysers = 0;
s->fe->fe_counters.failed_req++;
if (s->listener->counters)
s->listener->counters->failed_req++;
if (!(s->flags & SN_ERR_MASK))
s->flags |= SN_ERR_PRXCOND;
if (!(s->flags & SN_FINST_MASK))
s->flags |= SN_FINST_R;
return 0;
}
int bbdocument_add(char subname[],char documenturi[],char documenttype[],char document[],const int dokument_size,unsigned int lastmodified,char *acl_allow, char *acl_denied,const char title[], char doctype[], char *attributes, container *attrkeys) {
struct ReposetoryHeaderFormat ReposetoryHeader;
int htmlbuffersize = 0;//((dokument_size *2) +512); //+512 da vi skal ha med div meta data, som html kode
char *htmlbuffer = NULL;// = malloc(htmlbuffersize);
char *imagebuffer;
char *documenttype_real;
size_t imageSize;
unsigned int DocIDForExistTest;
unsigned int lastmodifiedForExistTest;
struct hashtable *metahash = NULL;
buffer *documentbuffer;
memset(&ReposetoryHeader,0,sizeof(ReposetoryHeader));
printf("bbdocument_add: \"%s\"\n",documenturi);
printf("bbdocument_add: Attributes = \"%s\" (", attributes);
if (attrkeys!=NULL) printf("+)\n");
else printf(" )\n");
//tester at det ikke finnes først. Hvis det finnes hånterer vi det. Eventuelt også lagre den nye versjonen hvis det er forandret.
if (uriindex_get(documenturi,&DocIDForExistTest,&lastmodifiedForExistTest,subname)) {
if (lastmodifiedForExistTest == lastmodified) {
printf("bbdocument_add: Uri \"%s\" all redy exist with DocID \"%u\" and time \"%u\"\n",documenturi,DocIDForExistTest,lastmodifiedForExistTest);
return 1;
}
//hvis url er kjent, men oppdater rebruker vi den.
ReposetoryHeader.DocID = DocIDForExistTest;
}
else {
//hvis vi ikke har DocID har vi et system som trenger å få opprettet det. For eks bb eller bdisk.
ReposetoryHeader.DocID = rGeneraeADocID(subname);
#ifdef DEBUG
printf("Dident have a known DocID for document. Did generet on. DOcID is now %u\n",ReposetoryHeader.DocID);
#endif
}
// hvis vi har en "text applicatino" enkoding, som ikke er en vanlig tekst fil, men tekst som kommer fra
// en apllikasjon behandler vi det som text.
//if (strcmp(documenttype,"tapp") == 0) {
// documenttype_real = strdup("text");
//}
//else
if (documenttype[0] == '\0') {
if ((documenttype_real = sfindductype(documenturi)) == NULL) {
printf("Will use .none as documenttype because I can't decide format. File name isent dos type (8.3): %s\n", documenturi);
documenttype_real = strdup("none");
}
}
else {
documenttype_real = malloc(strlen(documenttype)+1);
strcpy(documenttype_real,documenttype);
}
//hvis vi ikke her med noen egen doctype så bruker vi den vi har fått via documenttype
if (doctype[0] == '\0') {
//vi trenger ikke å ha \0 på slutten her
strncpy(ReposetoryHeader.doctype,documenttype_real,sizeof(ReposetoryHeader.doctype));
}
else {
//vi trenger ikke å ha \0 på slutten her
strncpy(ReposetoryHeader.doctype,doctype,sizeof(ReposetoryHeader.doctype));
}
documentbuffer = buffer_init(0);
if (!bbdocument_convert(documenttype_real,document,dokument_size,documentbuffer,title,subname,documenturi, lastmodified,acl_allow, acl_denied, &metahash)) {
printf("can't run bbdocument_convert\n");
//lager en tom html buffer
//Setter titelen som subjekt. Hva hvis vi ikke har title?
htmlbuffersize = strlen(html_text_tempelate) + strlen(title) + 1;
htmlbuffer = malloc(htmlbuffersize);
snprintf(htmlbuffer, htmlbuffersize, html_text_tempelate,title,"");
htmlbuffersize = strlen(htmlbuffer);
printf("useing title \"%s\" as title\n",title);
printf("htmlbuffersize %i\n",htmlbuffersize);
free(buffer_abort(documentbuffer));
} else {
htmlbuffersize = buffer_length(documentbuffer);
htmlbuffer = buffer_exit(documentbuffer);
}
buffer *attrbuffer = buffer_init(-1);
bprintf(attrbuffer, "%s,", attributes);
if (metahash) {
struct hashtable_itr *itr;
if (hashtable_count(metahash) > 0) {
itr = hashtable_iterator(metahash);
do {
char *key, *value;
key = hashtable_iterator_key(itr);
value = hashtable_iterator_value(itr);
printf("%s: Key: %s Value: %s\n", documenttype_real, key, value);
if (strcmp(key, "lastmodified") == 0) {
lastmodified = atol(value);
continue;
}
bprintf(attrbuffer, "%s=%s,", key, value);
} while (hashtable_iterator_advance(itr));
free(itr);
}
hashtable_destroy(metahash, 1);
}
char *all_attributes = buffer_exit(attrbuffer);
//prøver å lag et bilde
//if ( (imagebuffer = generate_thumbnail( document, dokument_size, &imageSize )) == NULL ) {
if (!bbdocument_makethumb(documenttype_real,document,dokument_size,&imagebuffer,&imageSize)) {
printf("can't generate image\n");
ReposetoryHeader.imageSize = 0;
imagebuffer = NULL;
}
else {
debug("generated image\n");
ReposetoryHeader.imageSize = imageSize;
}
ReposetoryHeader.clientVersion = 2.14;
//runarb: 8 juli 2008: tar bort bruken av ReposetoryHeader's url
//runarb: 11 juli 2008: kan ikke gjøre dette, da vi kopierer den inn i DocumentIndex fra ReposetoryHeader
strncpy(ReposetoryHeader.url,documenturi,sizeof(ReposetoryHeader.url));
ReposetoryHeader.response = 200;
strcpy(ReposetoryHeader.content_type,"htm");
ReposetoryHeader.acl_allowSize = strlen(acl_allow);
#ifdef IIACL
ReposetoryHeader.acl_deniedSize = strlen(acl_denied);
#endif
ReposetoryHeader.time = lastmodified;
ReposetoryHeader.storageTime = 0; //setes automatisk av rApendPostcompress
#ifdef DEBUG
printf("ACL was allow \"%s\", %i bytes, denied \"%s\", %i bytes\nsubname %s\n",acl_allow,ReposetoryHeader.acl_allowSize,acl_allow,ReposetoryHeader.acl_allowSize,subname);
#endif
ReposetoryHeader.urllen = strlen(documenturi);
ReposetoryHeader.attributeslen = strlen(all_attributes);
rApendPostcompress(&ReposetoryHeader, htmlbuffer, imagebuffer, subname, acl_allow, acl_denied, NULL, documenturi, all_attributes, attrkeys, htmlbuffersize);
#ifdef DEBUG
printf("legger til DocID \"%u\", time \"%u\"\n",ReposetoryHeader.DocID,lastmodified);
printf("htmlSize %u, imageSize %ho\n",ReposetoryHeader.htmlSize2,ReposetoryHeader.imageSize);
printf("html: -%s-\n",htmlbuffer);
#endif
uriindex_add(documenturi,ReposetoryHeader.DocID,lastmodified,subname);
free(all_attributes);
free(htmlbuffer);
free(documenttype_real);
if (imagebuffer != NULL) {
free(imagebuffer);
}
return 1;
}
