* BIG rewrite of header handling and slimming of context_loop and session_loop; shuff...
[citadel.git] / webcit / serv_func.c
index 9c894e03b5b728811ef87648c2e2ad816274d688..88289bde65adabc9c242d14b94dac00a303fef1a 100644 (file)
-/* $Id$ */
-
-#include <ctype.h>
-#include <stdlib.h>
-#include <string.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <stdio.h>
+/*
+ * $Id$
+ */
+
 #include "webcit.h"
-#include "child.h"
+#include "webserver.h"
 
-struct serv_info serv_info;
+int is_uds = 0;
+char serv_sock_name[PATH_MAX] = "";
+
+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 citadell we want to connect to
+ * user_agent          which browser uses our client?
  */
-void get_serv_info(void) {
-       char buf[256];
+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,
-               SERVER,
-               ""              /* FIX find out where the user is */
-               );
-       serv_gets(buf);
+                   DEVELOPER_ID,
+                   CLIENT_ID,
+                   CLIENT_VERSION,
+                   ChrPtr(user_agent),
+                   ChrPtr(browser_host)
+       );
+       StrBuf_ServGetln(Buf);
+
+       /** Tell the server what kind of richtext we prefer */
+       serv_puts("MSGP text/calendar|text/vnote|text/html|text/plain");
+       StrBuf_ServGetln(Buf);
+
+       /*
+        * 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);
 
+       /** Now ask the server to tell us a little bit about itself... */
        serv_puts("INFO");
-       serv_gets(buf);
-       if (buf[0]!='1') return;
+       StrBuf_ServGetln(Buf);
+       if (GetServerStatus(Buf, NULL) != 1) {
+               FreeStrBuf(&Buf);
+               return NULL;
+       }
 
+       info = (ServInfo*)malloc(sizeof(ServInfo));
+       memset(info, 0, sizeof(ServInfo));
        a = 0;
-       while(serv_gets(buf), strcmp(buf,"000")) {
-           switch(a) {
-               case 0:         serv_info.serv_pid = atoi(buf);
-                               break;
-               case 1:         strcpy(serv_info.serv_nodename,buf);
-                               break;
-               case 2:         strcpy(serv_info.serv_humannode,buf);
-                               break;
-               case 3:         strcpy(serv_info.serv_fqdn,buf);
-                               break;
-               case 4:         strcpy(serv_info.serv_software,buf);
-                               break;
-               case 5:         serv_info.serv_rev_level = atoi(buf);
-                               break;
-               case 6:         strcpy(serv_info.serv_bbs_city,buf);
-                               break;
-               case 7:         strcpy(serv_info.serv_sysadm,buf);
-                               break;
-               case 9:         strcpy(serv_info.serv_moreprompt,buf);
-                               break;
-               }
-           ++a;
-           }
-       }
-
-
-
-/* 
- * Function to spit out Citadel variformat text in HTML
- * If fp is non-null, it is considered to be the file handle to read the
- * text from.  Otherwise, text is read from the server.
+       while (StrBuf_ServGetln(Buf), (strcmp(ChrPtr(Buf), "000")!= 0)) {
+/*             lprintf (1, "a: %d [%s]", a, ChrPtr(Buf));*/
+               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 = NewStrBuf();
+       if (is_uds) /* unix domain socket */
+               WCC->serv_sock = uds_connectsock(serv_sock_name);
+       else        /* tcp socket */
+               WCC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
+       
+       if (WCC->serv_sock < 0) {
+               do_logout();
+               FreeStrBuf(&WCC->ReadBuf);
+               return 1;
+       }
+       else {
+               long Status;
+               Buf = NewStrBuf();
+               WCC->connected = 1;
+               StrBuf_ServGetln(Buf);  /* get the server greeting */
+               GetServerStatus(Buf, &Status);
+               FreeStrBuf(&Buf);
+               /* Are there too many users already logged in? */
+               if (Status == 571) {
+                       wprintf(_("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."));
+                       end_burst();
+                       end_webcit_session();
+                       return 1;
+               }
+
+               /*
+                * 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->browser_host) == 0) ) {
+                       if (WCC->Hdr->browser_host == NULL) {
+                               WCC->Hdr->browser_host = NewStrBuf();
+                               Put(WCC->Hdr->HTTPHeaders, HKEY("FreeMeWithTheOtherHeaders"), 
+                                   WCC->Hdr->browser_host, HFreeStrBuf);
+                       }
+                       locate_host(WCC->Hdr->browser_host, WCC->Hdr->http_sock);
+               }
+               if (WCC->serv_info == NULL)
+                       WCC->serv_info = get_serv_info(WCC->Hdr->browser_host, WCC->Hdr->user_agent);
+               if (WCC->serv_info == NULL){
+                       begin_burst();
+                       wprintf(_("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();
+                       wprintf(_("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;
+               }
+       }
+       if (WCC->ReadBuf == NULL)
+               WCC->ReadBuf = NewStrBuf();
+       if (is_uds)/* unix domain socket */
+               WCC->serv_sock = uds_connectsock(serv_sock_name);
+       else /* tcp socket */
+               WCC->serv_sock = tcp_connectsock(ctdlhost, ctdlport);
+       
+       if (WCC->serv_sock < 0) {
+               do_logout();
+               FreeStrBuf(&WCC->ReadBuf);
+               return 1;
+       }
+       else {
+               long Status;
+               StrBuf *Buf;
+
+               Buf = NewStrBuf();
+               WCC->connected = 1;
+               StrBuf_ServGetln(Buf);
+               GetServerStatus(Buf,&Status);
+               /* get the server greeting */
+               
+               /* Are there too many users already logged in? */
+               if (Status == 571) {
+                       wprintf(_("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."));
+                       end_burst();
+                       end_webcit_session();
+                       return 1;
+               }
+
+               /*
+                * 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->browser_host) == 0) ) {
+                       if (WCC->Hdr->browser_host == NULL) {
+                               WCC->Hdr->browser_host = NewStrBuf();
+                               Put(WCC->Hdr->HTTPHeaders, HKEY("FreeMeWithTheOtherHeaders"), 
+                                   WCC->Hdr->browser_host, HFreeStrBuf);
+                       }
+                       locate_host(WCC->Hdr->browser_host, WCC->Hdr->http_sock);
+               }
+               if (WCC->serv_info == NULL)
+                       WCC->serv_info = get_serv_info(WCC->Hdr->browser_host, WCC->Hdr->user_agent);
+               if (WCC->serv_info == NULL){
+                       begin_burst();
+                       wprintf(_("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();
+                       wprintf(_("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;
+               }
+       }
+       return 0;
+}
+
+/**
+ *  Read Citadel variformat text and spit it out as HTML.
+ *  align html align string
  */
-void fmout(FILE *fp)
+inline void fmout(char *align)
 {
+       _fmout(WC->WBuf, align);
+}
 
+void _fmout(StrBuf *Target, char *align)
+{
        int intext = 0;
        int bq = 0;
-       char buf[256];
+       char buf[SIZ];
 
-       while(1) {
-               if (fp==NULL) serv_gets(buf);
-               if (fp!=NULL) {
-                       if (fgets(buf,256,fp)==NULL) strcpy(buf,"000");
-                       buf[strlen(buf)-1] = 0;
-                       }
-               if (!strcmp(buf,"000")) {
-                       if (bq==1) wprintf("</I>");
-                       wprintf("<P>\n");
-                       return;
-                       }
-               if ( (intext==1) && (isspace(buf[0])) ) {
-                       wprintf("<BR>");
-                       }
+       StrBufAppendPrintf(Target, "<div align=%s>\n", align);
+       while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+
+               if ((intext == 1) && (isspace(buf[0]))) {
+                       wprintf("<br />");
+               }
                intext = 1;
 
-               /* Quoted text should be displayed in italics and in a
-                * different colour.  This code understands both Citadel/UX
-                * style " >" quotes and FordBoard-style " :-)" quotes.
+               /**
+                * 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))||(!strncmp(buf," :-)",4)))) {
-                       wprintf("<FONT COLOR=\"000044\"><I>");
+               if ((bq == 0) && (!strncmp(buf, " >", 2))) {
+                       StrBufAppendBufPlain(Target, HKEY("<BLOCKQUOTE>"), 0);
                        bq = 1;
-                       }
-               else if ((bq==1)&&
-                    (strncmp(buf," >",2))&&(strncmp(buf," :-)",4))) {
-                       wprintf("</FONT></I>");
+               } 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) {
+               wprintf("</I>");
+       }
+       wprintf("</div><br />\n");
+}
+
+void FmOut(StrBuf *Target, char *align, StrBuf *Source)
+{
+       const char *ptr, *pte;
+       const char *BufPtr = NULL;
+       StrBuf *Line = NewStrBuf();
+       StrBuf *Line1 = NewStrBuf();
+       StrBuf *Line2 = NewStrBuf();
+       int bn = 0;
+       int bq = 0;
+       int i, n, done = 0;
+       long len;
+       int intext = 0;
+
+       StrBufAppendPrintf(Target, "<div class=\"fmout-%s\">\n", align);
+       while ((n = StrBufSipLine(Line, Source, &BufPtr), n >= 0) && !done)
+       {
+               done = n == 0;
+               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);
+       }
+       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]))) {
+                       wprintf("<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))) {
+                       wprintf("<BLOCKQUOTE>");
+                       bq = 1;
+               } else if ((bq == 1) && (strncmp(buf, " >", 2))) {
+                       wprintf("</BLOCKQUOTE>");
                        bq = 0;
+               }
+               if ((bq == 1) && (!strncmp(buf, " >", 2))) {
+                       strcpy(buf, &buf[2]);
+               }
+
+               msgescputs(buf);
+       }
+       if (bq == 1) {
+               wprintf("</I>");
+       }
+}
+
+
+
+
+/**
+ *  Transmit message text (in memory) to the server.
+ *
+ *  ptr Pointer to the message being transmitted
+ */
+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);
+}
 
-               /* Activate embedded URL's */
-               url(buf);
 
-               escputs(buf);
-               wprintf("\n");
+/**
+ *  Transmit message text (in memory) to the server,
+ *        converting to Quoted-Printable encoding as we go.
+ *
+ *  ptr Pointer to the message being transmitted
+ */
+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)) {
+                       wprintf("\n");
+               }
+               wprintf("%s", buf);
+               ++count;
+       }
+}
+
+
+
+/**
+ * Read binary data from server into memory using a series of
+ * server READ commands.
+ * \return the read content as StrBuf
+ */
+int read_server_binary(StrBuf *Ret, size_t total_len, StrBuf *Buf) 
+{
+       char buf[SIZ];
+       size_t bytes = 0;
+       size_t thisblock = 0;
+       
+       if (Ret == NULL)
+           return -1;
+
+       while (bytes < total_len) {
+               thisblock = 4095;
+               if ((total_len - bytes) < thisblock) {
+                       thisblock = total_len - bytes;
+                       if (thisblock == 0) {
+                               FlushStrBuf(Ret); 
+                               FreeStrBuf(&Buf);
+                               return -1; 
+                       }
+               }
+               serv_printf("READ %d|%d", (int)bytes, (int)thisblock);
+               if (StrBuf_ServGetln(Buf) > 0)
+               {
+                       if (GetServerStatus(Buf, NULL) == 6)
+                       {
+                           StrBufCutLeft(Buf, 4);
+                           thisblock = StrTol(Buf);
+                           if (!WC->connected) {
+                                   FlushStrBuf(Ret); 
+                                   FreeStrBuf(&Buf); 
+                                   return -1; 
+                           }
+                           StrBuf_ServGetBLOBBuffered(Ret, thisblock);
+                           bytes += thisblock;
+                   }
+                   else {
+                           FreeStrBuf(&Buf);
+                           lprintf(3, "Error: %s\n", &buf[4]);
+                           return -1;
+                   }
+               }
+       }
+       return StrLength(Ret);
+}
+
+
+/**
+ *  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;
+}
+
+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 
+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);
+       RegisterNamespace("SERV:PID", 0, 0, tmplput_serv_ip, CTX_NONE);
+       RegisterNamespace("SERV:NODENAME", 0, 1, tmplput_serv_nodename, CTX_NONE);
+       RegisterNamespace("SERV:HUMANNODE", 0, 1, tmplput_serv_humannode, CTX_NONE);
+       RegisterNamespace("SERV:FQDN", 0, 1, tmplput_serv_fqdn, CTX_NONE);
+       RegisterNamespace("SERV:SOFTWARE", 0, 1, tmplput_serv_software, CTX_NONE);
+       RegisterNamespace("SERV:REV_LEVEL", 0, 0, tmplput_serv_rev_level, CTX_NONE);
+       RegisterNamespace("SERV:BBS_CITY", 0, 1, tmplput_serv_bbs_city, CTX_NONE);
+       RegisterNamespace("SERV:MESG", 1, 2, tmplput_mesg, CTX_NONE);
+/*TODO //      RegisterNamespace("SERV:LDAP_SUPP", 0, 0, tmplput_serv_ldap_enabled, 0); */
+}
+
+
+
+void 
+SessionDestroyModule_SERVFUNC
+(wcsession *sess)
+{
+       DeleteServInfo(&sess->serv_info);
+}
+/*@}*/