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/*
* $Id: serv_func.c 8606 2010-06-03 15:55:24Z ajc $
*/
#include "webcit.h"
#include "webserver.h"
int is_uds = 0;
char serv_sock_name[PATH_MAX] = "";
HashList *EmbeddableMimes = NULL;
StrBuf *EmbeddableMimeStrs = NULL;
void SetInlinMimeRenderers(void)
{
StrBuf *Buf;
Buf = NewStrBuf();
/* Tell the server what kind of richtext we prefer */
serv_putbuf(EmbeddableMimeStrs);
StrBuf_ServGetln(Buf);
FreeStrBuf(&Buf);
}
void DeleteServInfo(ServInfo **FreeMe)
{
if (*FreeMe == NULL)
return;
FreeStrBuf(&(*FreeMe)->serv_nodename);
FreeStrBuf(&(*FreeMe)->serv_humannode);
FreeStrBuf(&(*FreeMe)->serv_fqdn);
FreeStrBuf(&(*FreeMe)->serv_software);
FreeStrBuf(&(*FreeMe)->serv_bbs_city);
FreeStrBuf(&(*FreeMe)->serv_sysadm);
FreeStrBuf(&(*FreeMe)->serv_moreprompt);
FreeStrBuf(&(*FreeMe)->serv_default_cal_zone);
FreeStrBuf(&(*FreeMe)->serv_svn_revision);
free(*FreeMe);
*FreeMe = NULL;
}
/*
* get info about the server we've connected to
*
* browser_host the citadel we want to connect to
* user_agent which browser uses our client?
*/
ServInfo *get_serv_info(StrBuf *browser_host, StrBuf *user_agent)
{
ServInfo *info;
StrBuf *Buf;
int a;
Buf = NewStrBuf();
/* Tell the server what kind of client is connecting */
serv_printf("IDEN %d|%d|%d|%s|%s",
DEVELOPER_ID,
CLIENT_ID,
CLIENT_VERSION,
ChrPtr(user_agent),
ChrPtr(browser_host)
);
StrBuf_ServGetln(Buf);
if (GetServerStatus(Buf, NULL) != 2) {
lprintf(0, "get_serv_info(IDEN): unexpected answer [%s]\n",
ChrPtr(Buf));
FreeStrBuf(&Buf);
return NULL;
}
/*
* Tell the server that when we save a calendar event, we
* want invitations to be generated by the Citadel server
* instead of by the client.
*/
serv_puts("ICAL sgi|1");
StrBuf_ServGetln(Buf);
if (GetServerStatus(Buf, NULL) != 2) {
lprintf(0, "get_serv_info(ICAL sgi|1): unexpected answer [%s]\n",
ChrPtr(Buf));
FreeStrBuf(&Buf);
return NULL;
}
/* Now ask the server to tell us a little bit about itself... */
serv_puts("INFO");
StrBuf_ServGetln(Buf);
if (GetServerStatus(Buf, NULL) != 1) {
lprintf(0, "get_serv_info(INFO sgi|1): unexpected answer [%s]\n",
ChrPtr(Buf));
FreeStrBuf(&Buf);
return NULL;
}
info = (ServInfo*)malloc(sizeof(ServInfo));
memset(info, 0, sizeof(ServInfo));
a = 0;
while (StrBuf_ServGetln(Buf), (strcmp(ChrPtr(Buf), "000")!= 0)) {
switch (a) {
case 0:
info->serv_pid = StrToi(Buf);
WC->ctdl_pid = info->serv_pid;
break;
case 1:
info->serv_nodename = NewStrBufDup(Buf);
break;
case 2:
info->serv_humannode = NewStrBufDup(Buf);
break;
case 3:
info->serv_fqdn = NewStrBufDup(Buf);
break;
case 4:
info->serv_software = NewStrBufDup(Buf);
break;
case 5:
info->serv_rev_level = StrToi(Buf);
break;
case 6:
info->serv_bbs_city = NewStrBufDup(Buf);
break;
case 7:
info->serv_sysadm = NewStrBufDup(Buf);
break;
case 9:
info->serv_moreprompt = NewStrBufDup(Buf);
break;
case 14:
info->serv_supports_ldap = StrToi(Buf);
break;
case 15:
info->serv_newuser_disabled = StrToi(Buf);
break;
case 16:
info->serv_default_cal_zone = NewStrBufDup(Buf);
break;
case 20:
info->serv_supports_sieve = StrToi(Buf);
break;
case 21:
info->serv_fulltext_enabled = StrToi(Buf);
break;
case 22:
info->serv_svn_revision = NewStrBufDup(Buf);
break;
case 23:
info->serv_supports_openid = StrToi(Buf);
break;
}
++a;
}
FreeStrBuf(&Buf);
return info;
}
int GetConnected (void)
{
StrBuf *Buf;
wcsession *WCC = WC;
if (WCC->ReadBuf == NULL)
WCC->ReadBuf = NewStrBufPlain(NULL, SIZ * 4);
if (is_uds) /* unix domain socket */
WCC->serv_sock = uds_connectsock(serv_sock_name);
else /* tcp socket */
WCC->serv_sock = tcp_connectsock(ctdlhost, atoi(ctdlport));
if (WCC->serv_sock < 0) {
do_logout();
FreeStrBuf(&WCC->ReadBuf);
return 1;
}
else {
long Status;
int short_status;
Buf = NewStrBuf();
WCC->connected = 1;
StrBuf_ServGetln(Buf); /* get the server greeting */
short_status = GetServerStatus(Buf, &Status);
FreeStrBuf(&Buf);
/* Server isn't ready for us? */
if (short_status != 2) {
if (Status == 571) {
wc_printf(_("This server is already serving its maximum number of users and cannot accept any additional logins at this time. Please try again later or contact your system administrator."));
}
else {
wc_printf("%ld %s\n",
Status,
_("Received unexpected answer from Citadel server; bailing out.")
);
}
end_burst();
end_webcit_session();
return 1;
}
/* 2010jun03: every now and then the connection to Citadel dies before this point. why? */
/*
* From what host is our user connecting? Go with
* the host at the other end of the HTTP socket,
* unless we are following X-Forwarded-For: headers
* and such a header has already turned up something.
*/
if ( (!follow_xff) || (StrLength(WCC->Hdr->HR.browser_host) == 0) ) {
if (WCC->Hdr->HR.browser_host == NULL) {
WCC->Hdr->HR.browser_host = NewStrBuf();
Put(WCC->Hdr->HTTPHeaders, HKEY("FreeMeWithTheOtherHeaders"),
WCC->Hdr->HR.browser_host, HFreeStrBuf);
}
locate_host(WCC->Hdr->HR.browser_host, WCC->Hdr->http_sock);
}
if (WCC->serv_info == NULL) {
WCC->serv_info = get_serv_info(WCC->Hdr->HR.browser_host, WCC->Hdr->HR.user_agent);
}
if (WCC->serv_info == NULL){
begin_burst();
wc_printf(_("Received unexpected answer from Citadel server; bailing out."));
hprintf("HTTP/1.1 200 OK\r\n");
hprintf("Content-type: text/plain; charset=utf-8\r\n");
end_burst();
end_webcit_session();
return 1;
}
if (WCC->serv_info->serv_rev_level < MINIMUM_CIT_VERSION) {
begin_burst();
wc_printf(_("You are connected to a Citadel "
"server running Citadel %d.%02d. \n"
"In order to run this version of WebCit "
"you must also have Citadel %d.%02d or"
" newer.\n\n\n"),
WCC->serv_info->serv_rev_level / 100,
WCC->serv_info->serv_rev_level % 100,
MINIMUM_CIT_VERSION / 100,
MINIMUM_CIT_VERSION % 100
);
hprintf("HTTP/1.1 200 OK\r\n");
hprintf("Content-type: text/plain; charset=utf-8\r\n");
end_burst();
end_webcit_session();
return 1;
}
SetInlinMimeRenderers();
}
return 0;
}
/*
* Read Citadel variformat text and spit it out as HTML.
* align html align string
*/
inline void fmout(char *align)
{
_fmout(WC->WBuf, align);
}
void _fmout(StrBuf *Target, char *align)
{
int intext = 0;
int bq = 0;
char buf[SIZ];
StrBufAppendPrintf(Target, "<div align=%s>\n", align);
while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
if ((intext == 1) && (isspace(buf[0]))) {
wc_printf("<br />");
}
intext = 1;
/*
* Quoted text should be displayed in italics and in a
* different colour. This code understands Citadel-style
* " >" quotes and will convert to <BLOCKQUOTE> tags.
*/
if ((bq == 0) && (!strncmp(buf, " >", 2))) {
StrBufAppendBufPlain(Target, HKEY("<BLOCKQUOTE>"), 0);
bq = 1;
} else if ((bq == 1) && (strncmp(buf, " >", 2))) {
StrBufAppendBufPlain(Target, HKEY("</BLOCKQUOTE>"), 0);
bq = 0;
}
if ((bq == 1) && (!strncmp(buf, " >", 2))) {
strcpy(buf, &buf[2]);
}
/* Activate embedded URL's */
url(buf, sizeof(buf));
escputs(buf);
StrBufAppendBufPlain(Target, HKEY("\n"), 0);
}
if (bq == 1) {
wc_printf("</I>");
}
wc_printf("</div><br />\n");
}
void FmOut(StrBuf *Target, char *align, StrBuf *Source)
{
const char *ptr, *pte;
const char *BufPtr = NULL;
StrBuf *Line = NewStrBufPlain(NULL, SIZ);
StrBuf *Line1 = NewStrBufPlain(NULL, SIZ);
StrBuf *Line2 = NewStrBufPlain(NULL, SIZ);
int bn = 0;
int bq = 0;
int i;
long len;
int intext = 0;
StrBufAppendPrintf(Target, "<div class=\"fmout-%s\">\n", align);
if (StrLength(Source) > 0)
do
{
StrBufSipLine(Line, Source, &BufPtr);
bq = 0;
i = 0;
ptr = ChrPtr(Line);
len = StrLength(Line);
pte = ptr + len;
if ((intext == 1) && (isspace(*ptr))) {
StrBufAppendBufPlain(Target, HKEY("<br>"), 0);
}
intext = 1;
if (isspace(*ptr)) while ((ptr < pte) &&
((*ptr == '>') ||
isspace(*ptr)))
{
if (*ptr == '>')
bq++;
ptr ++;
i++;
}
/*
* Quoted text should be displayed in italics and in a
* different colour. This code understands Citadel-style
* " >" quotes and will convert to <BLOCKQUOTE> tags.
*/
if (i > 0) StrBufCutLeft(Line, i);
for (i = bn; i < bq; i++)
StrBufAppendBufPlain(Target, HKEY("<blockquote>"), 0);
for (i = bq; i < bn; i++)
StrBufAppendBufPlain(Target, HKEY("</blockquote>"), 0);
bn = bq;
if (StrLength(Line) == 0)
continue;
/* Activate embedded URL's */
UrlizeText(Line1, Line, Line2);
StrEscAppend(Target, Line1, NULL, 0, 0);
StrBufAppendBufPlain(Target, HKEY("\n"), 0);
}
while ((BufPtr != StrBufNOTNULL) &&
(BufPtr != NULL));
for (i = 0; i < bn; i++) {
StrBufAppendBufPlain(Target, HKEY("</blockquote>"), 0);
}
StrBufAppendBufPlain(Target, HKEY("</div><br>\n"), 0);
FreeStrBuf(&Line);
FreeStrBuf(&Line1);
FreeStrBuf(&Line2);
}
/*
* Read Citadel variformat text and spit it out as HTML in a form
* suitable for embedding in another message (forward/quote).
* (NO LINEBREAKS ALLOWED HERE!)
*/
void pullquote_fmout(void) {
int intext = 0;
int bq = 0;
char buf[SIZ];
while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
if ((intext == 1) && (isspace(buf[0]))) {
wc_printf("<br />");
}
intext = 1;
/*
* Quoted text should be displayed in italics and in a
* different colour. This code understands Citadel-style
* " >" quotes and will convert to <BLOCKQUOTE> tags.
*/
if ((bq == 0) && (!strncmp(buf, " >", 2))) {
wc_printf("<BLOCKQUOTE>");
bq = 1;
} else if ((bq == 1) && (strncmp(buf, " >", 2))) {
wc_printf("</BLOCKQUOTE>");
bq = 0;
}
if ((bq == 1) && (!strncmp(buf, " >", 2))) {
strcpy(buf, &buf[2]);
}
msgescputs(buf);
}
if (bq == 1) {
wc_printf("</I>");
}
}
/*
* Transmit message text (in memory) to the server.
*/
void text_to_server(char *ptr)
{
char buf[256];
int ch, a, pos, len;
pos = 0;
buf[0] = 0;
while (ptr[pos] != 0) {
ch = ptr[pos++];
if (ch == 10) {
len = strlen(buf);
while ( (isspace(buf[len - 1]))
&& (buf[0] != '\0')
&& (buf[1] != '\0') )
buf[--len] = 0;
serv_puts(buf);
buf[0] = 0;
if (ptr[pos] != 0) strcat(buf, " ");
} else {
a = strlen(buf);
buf[a + 1] = 0;
buf[a] = ch;
if ((ch == 32) && (strlen(buf) > 200)) {
buf[a] = 0;
serv_puts(buf);
buf[0] = 0;
}
if (strlen(buf) > 250) {
serv_puts(buf);
buf[0] = 0;
}
}
}
serv_puts(buf);
}
/*
* Transmit message text (in memory) to the server, converting to Quoted-Printable encoding as we go.
*/
void text_to_server_qp(char *ptr)
{
unsigned char ch, buf[256];
int pos;
int output_len = 0;
pos = 0;
buf[0] = 0;
output_len = 0;
while (ptr[pos] != 0) {
ch = (unsigned char)(ptr[pos++]);
if (ch == 13) {
/* ignore carriage returns */
}
else if (ch == 10) {
/* hard line break */
if (output_len > 0) {
if (isspace(buf[output_len-1])) {
sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
output_len += 2;
}
}
buf[output_len++] = 0;
serv_puts((char *)buf);
output_len = 0;
}
else if (ch == 9) {
buf[output_len++] = ch;
}
else if ( (ch >= 32) && (ch <= 60) ) {
buf[output_len++] = ch;
}
else if ( (ch >= 62) && (ch <= 126) ) {
buf[output_len++] = ch;
}
else {
sprintf((char *)&buf[output_len], "=%02X", ch);
output_len += 3;
}
if (output_len > 72) {
/* soft line break */
if (isspace(buf[output_len-1])) {
sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
output_len += 2;
}
buf[output_len++] = '=';
buf[output_len++] = 0;
serv_puts((char *)buf);
output_len = 0;
}
}
/* end of data - transmit anything that's left */
if (output_len > 0) {
if (isspace(buf[output_len-1])) {
sprintf((char *)&buf[output_len-1], "=%02X", buf[output_len-1]);
output_len += 2;
}
buf[output_len++] = 0;
serv_puts((char *)buf);
output_len = 0;
}
}
/*
* translate server message output to text (used for editing room info files and such)
*/
void server_to_text()
{
char buf[SIZ];
int count = 0;
while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
if ((buf[0] == 32) && (count > 0)) {
wc_printf("\n");
}
wc_printf("%s", buf);
++count;
}
}
/*
* Read text from server, appending to a string buffer until the
* usual 000 terminator is found. Caller is responsible for freeing
* the returned pointer.
*/
int read_server_text(StrBuf *Buf, long *nLines)
{
wcsession *WCC = WC;
long nRead;
long nTotal = 0;
long nlines;
nlines = 0;
while ((WCC->serv_sock!=-1) &&
(nRead = StrBuf_ServGetln(Buf), (nRead >= 0) ))
{
if (strcmp(ChrPtr(Buf) + nTotal, "000") != 0) {
StrBufCutRight(Buf, nRead);
break;
}
nTotal += nRead;
nlines ++;
}
*nLines = nlines;
return nTotal;
}
int GetServerStatus(StrBuf *Line, long* FullState)
{
if (FullState != NULL)
*FullState = StrTol(Line);
return ChrPtr(Line)[0] - 48;
}
void tmplput_serv_ip(StrBuf *Target, WCTemplputParams *TP)
{
StrBufAppendPrintf(Target, "%d", WC->ctdl_pid);
}
void tmplput_serv_nodename(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return;
StrBufAppendTemplate(Target, TP, WCC->serv_info->serv_nodename, 0);
}
void tmplput_serv_humannode(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return;
StrBufAppendTemplate(Target, TP, WCC->serv_info->serv_humannode, 0);
}
void tmplput_serv_fqdn(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return;
StrBufAppendTemplate(Target, TP, WCC->serv_info->serv_fqdn, 0);
}
void tmplput_serv_software(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return;
StrBufAppendTemplate(Target, TP, WCC->serv_info->serv_software, 0);
}
void tmplput_serv_rev_level(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return;
StrBufAppendPrintf(Target, "%d.%02d",
WCC->serv_info->serv_rev_level / 100,
WCC->serv_info->serv_rev_level % 100);
}
int conditional_serv_newuser_disabled(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return 0;
return WCC->serv_info->serv_newuser_disabled != 0;
}
int conditional_serv_supports_openid(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return 0;
return WCC->serv_info->serv_supports_openid != 0;
}
int conditional_serv_fulltext_enabled(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return 0;
return WCC->serv_info->serv_fulltext_enabled != 0;
}
void tmplput_serv_bbs_city(StrBuf *Target, WCTemplputParams *TP)
{
wcsession *WCC = WC;
if (WCC->serv_info == NULL)
return;
StrBufAppendTemplate(Target, TP, WC->serv_info->serv_bbs_city, 0);
}
void tmplput_mesg(StrBuf *Target, WCTemplputParams *TP)
{
int n = 0;
int Done = 0;
StrBuf *Line;
StrBuf *Buf;
Buf = NewStrBuf();
Line = NewStrBuf();
serv_printf("MESG %s", TP->Tokens->Params[0]->Start);
StrBuf_ServGetln(Line);
if (GetServerStatus(Line, NULL) == 1) {
while (!Done && (StrBuf_ServGetln(Line)>=0)) {
if ( (StrLength(Line)==3) &&
!strcmp(ChrPtr(Line), "000"))
Done = 1;
else
{
if (n > 0)
StrBufAppendBufPlain(Buf, "\n", 1, 0);
StrBufAppendBuf(Buf, Line, 0);
}
n++;
}
FlushStrBuf(Line);
FmOut(Line, "center", Buf);
StrBufAppendTemplate(Target, TP, Line, 1);
}
FreeStrBuf(&Buf);
FreeStrBuf(&Line);
}
void RegisterEmbeddableMimeType(const char *MimeType, long MTLen, int Priority)
{
StrBuf *MT;
MT = NewStrBufPlain(MimeType, MTLen);
Put(EmbeddableMimes, IKEY(Priority), MT, HFreeStrBuf);
}
void CreateMimeStr(void)
{
HashPos *it;
void *vMime;
long len = 0;
const char *Key;
it = GetNewHashPos(EmbeddableMimes, 0);
while (GetNextHashPos(EmbeddableMimes, it, &len, &Key, &vMime) &&
(vMime != NULL)) {
if (StrLength(EmbeddableMimeStrs) > 0)
StrBufAppendBufPlain(EmbeddableMimeStrs, HKEY("|"), 0);
else
StrBufAppendBufPlain(EmbeddableMimeStrs, HKEY("MSGP "), 0);
StrBufAppendBuf(EmbeddableMimeStrs, (StrBuf*) vMime, 0);
}
DeleteHashPos(&it);
}
void
ServerStartModule_SERV_FUNC
(void)
{
EmbeddableMimes = NewHash(1, Flathash);
EmbeddableMimeStrs = NewStrBuf();
}
void
ServerShutdownModule_SERV_FUNC
(void)
{
FreeStrBuf(&EmbeddableMimeStrs);
DeleteHash(&EmbeddableMimes);
}
void
InitModule_SERVFUNC
(void)
{
is_uds = strcasecmp(ctdlhost, "uds") == 0;
if (is_uds)
snprintf(serv_sock_name, PATH_MAX, "%s/citadel.socket", ctdlport);
RegisterConditional(HKEY("COND:SERV:OPENID"), 2, conditional_serv_supports_openid, CTX_NONE);
RegisterConditional(HKEY("COND:SERV:NEWU"), 2, conditional_serv_newuser_disabled, CTX_NONE);
RegisterConditional(HKEY("COND:SERV:HAVEFULLTEXT"), 2, conditional_serv_fulltext_enabled, CTX_NONE);
RegisterNamespace("SERV:PID", 0, 0, tmplput_serv_ip, NULL, CTX_NONE);
RegisterNamespace("SERV:NODENAME", 0, 1, tmplput_serv_nodename, NULL, CTX_NONE);
RegisterNamespace("SERV:HUMANNODE", 0, 1, tmplput_serv_humannode, NULL, CTX_NONE);
RegisterNamespace("SERV:FQDN", 0, 1, tmplput_serv_fqdn, NULL, CTX_NONE);
RegisterNamespace("SERV:SOFTWARE", 0, 1, tmplput_serv_software, NULL, CTX_NONE);
RegisterNamespace("SERV:REV_LEVEL", 0, 0, tmplput_serv_rev_level, NULL, CTX_NONE);
RegisterNamespace("SERV:BBS_CITY", 0, 1, tmplput_serv_bbs_city, NULL, CTX_NONE);
RegisterNamespace("SERV:MESG", 1, 2, tmplput_mesg, NULL, CTX_NONE);
}
void
SessionDestroyModule_SERVFUNC
(wcsession *sess)
{
DeleteServInfo(&sess->serv_info);
}
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