* All OS-level includes are now included from webcit.h instead of from
[citadel.git] / webcit / serv_func.c
index fd23284f4d7722308d2b50239b3fa592caf9c550..3eb0375eb105ddbbc89caa157cd2c8202cdef21d 100644 (file)
@@ -1,62 +1,90 @@
-/* $Id$ */
+/*
+ * $Id$
+ *
+ * Handles various types of data transfer operations with the Citadel service.
+ *
+ */
 
-#include <ctype.h>
-#include <stdlib.h>
-#include <string.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#include <stdio.h>
 #include "webcit.h"
-#include "child.h"
+#include "webserver.h"
 
 struct serv_info serv_info;
 
 /*
  * get info about the server we've connected to
  */
-void get_serv_info(void) {
-       char buf[256];
+void get_serv_info(char *browser_host, char *user_agent)
+{
+       char buf[SIZ];
        int a;
 
+       /* 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);
+               user_agent,
+               browser_host
+       );
+       serv_getln(buf, sizeof buf);
+
+       /* Tell the server what kind of richtext we prefer */
+       serv_puts("MSGP text/html|text/plain");
+       serv_getln(buf, sizeof buf);
+
+#ifdef WEBCIT_WITH_CALENDAR_SERVICE
+       /* 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");
+       serv_getln(buf, sizeof buf);
+#endif
 
+       /* Now ask the server to tell us a little bit about itself... */
        serv_puts("INFO");
-       serv_gets(buf);
-       if (buf[0]!='1') return;
+       serv_getln(buf, sizeof buf);
+       if (buf[0] != '1')
+               return;
 
        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;
+       while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+               switch (a) {
+               case 0:
+                       serv_info.serv_pid = atoi(buf);
+                       WC->ctdl_pid = serv_info.serv_pid;
+                       break;
+               case 1:
+                       safestrncpy(serv_info.serv_nodename, buf, sizeof serv_info.serv_nodename);
+                       break;
+               case 2:
+                       safestrncpy(serv_info.serv_humannode, buf, sizeof serv_info.serv_humannode);
+                       break;
+               case 3:
+                       safestrncpy(serv_info.serv_fqdn, buf, sizeof serv_info.serv_fqdn);
+                       break;
+               case 4:
+                       safestrncpy(serv_info.serv_software, buf, sizeof serv_info.serv_software);
+                       break;
+               case 5:
+                       serv_info.serv_rev_level = atoi(buf);
+                       break;
+               case 6:
+                       safestrncpy(serv_info.serv_bbs_city, buf, sizeof serv_info.serv_bbs_city);
+                       break;
+               case 7:
+                       safestrncpy(serv_info.serv_sysadm, buf, sizeof serv_info.serv_sysadm);
+                       break;
+               case 9:
+                       safestrncpy(serv_info.serv_moreprompt, buf, sizeof serv_info.serv_moreprompt);
+                       break;
+               case 14:
+                       serv_info.serv_supports_ldap = atoi(buf);
+                       break;
                }
-           ++a;
-           }
+               ++a;
        }
+}
 
 
 
@@ -65,95 +93,107 @@ void get_serv_info(void) {
  * 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.
  */
-void fmout(FILE *fp)
+void fmout(FILE *fp, char *align)
 {
 
        int intext = 0;
        int bq = 0;
-       char buf[256];
-
-       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");
+       char buf[SIZ];
+
+       wprintf("<div align=%s>\n", align);
+       while (1) {
+               if (fp == NULL)
+                       serv_getln(buf, sizeof buf);
+               if (fp != NULL) {
+                       if (fgets(buf, SIZ, fp) == NULL)
+                               safestrncpy(buf, "000", sizeof buf);
+                       buf[strlen(buf) - 1] = 0;
+               }
+               if (!strcmp(buf, "000")) {
+                       if (bq == 1)
+                               wprintf("</I>");
+                       wprintf("</div><br />\n");
                        return;
-                       }
-               if ( (intext==1) && (isspace(buf[0])) ) {
-                       wprintf("<BR>");
-                       }
+               }
+               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.
+                * 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))) {
+                       wprintf("<BLOCKQUOTE>");
                        bq = 1;
-                       }
-               else if ((bq==1)&&
-                    (strncmp(buf," >",2))&&(strncmp(buf," :-)",4))) {
-                       wprintf("</FONT></I>");
+               } else if ((bq == 1) && (strncmp(buf, " >", 2))) {
+                       wprintf("</BLOCKQUOTE>");
                        bq = 0;
-                       }
-
+               }
+               if ((bq == 1) && (!strncmp(buf, " >", 2))) {
+                       strcpy(buf, &buf[2]);
+               }
                /* Activate embedded URL's */
                url(buf);
 
                escputs(buf);
                wprintf("\n");
-               }
        }
-
-
+}
 
 
 
 
 /*
- * transmit message text (in memory) to the server
+ * Transmit message text (in memory) to the server.
+ * If convert_to_html is set to 1, the message is converted into something
+ * which kind of resembles HTML.
  */
-void text_to_server(char *ptr) {
-       char buf[256];
-       int ch,a,pos;
+void text_to_server(char *ptr, int convert_to_html)
+{
+       char buf[SIZ];
+       char conv[4];
+       int ch, a, pos;
 
        pos = 0;
-       
-       strcpy(buf,"");
-       while (ptr[pos]!=0) {
+       buf[0] = 0;
+
+       while (ptr[pos] != 0) {
                ch = ptr[pos++];
-               if (ch==10) {
-                       while (isspace(buf[strlen(buf)-1]))
-                               buf[strlen(buf)-1]=0;
+               if (ch == 10) {
+                       while ( (isspace(buf[strlen(buf) - 1]))
+                         && (strlen(buf) > 1) )
+                               buf[strlen(buf) - 1] = 0;
                        serv_puts(buf);
-                       strcpy(buf,"");
+                       buf[0] = 0;
+                       if (convert_to_html) {
+                               strcat(buf, "<br />");
                        }
-               else {
+                       else {
+                               if (ptr[pos] != 0) strcat(buf, " ");
+                       }
+               } else if ((convert_to_html)&&(strchr("#&;`'|*?-~<>^()[]{}$\\", ch) != NULL)) {
+                       sprintf(conv, "%c", ch);
+                       stresc(&buf[strlen(buf)], conv, 0, 0);
+               } else {
                        a = strlen(buf);
-                       buf[a+1] = 0;
+                       buf[a + 1] = 0;
                        buf[a] = ch;
-                       if ((ch==32)&&(strlen(buf)>200)) {
-                               buf[a]=0;
+                       if ((ch == 32) && (strlen(buf) > 200)) {
+                               buf[a] = 0;
                                serv_puts(buf);
-                               strcpy(buf,"");
-                               }
-                       if (strlen(buf)>250) {
+                               buf[0] = 0;
+                       }
+                       if (strlen(buf) > 250) {
                                serv_puts(buf);
-                               strcpy(buf,"");
-                               }
+                               buf[0] = 0;
                        }
                }
-       serv_puts(buf);
        }
+       serv_puts(buf);
 
-
-
+}
 
 
 
@@ -161,20 +201,88 @@ void text_to_server(char *ptr) {
  * translate server message output to text
  * (used for editing room info files and such)
  */
-void server_to_text() {
-       char buf[256]; 
+void server_to_text()
+{
+       char buf[SIZ];
 
        int count = 0;
 
-       while (serv_gets(buf), strcmp(buf, "000") ) {
-               if ( (buf[0] == 32) && (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.
+ */
+void read_server_binary(char *buffer, size_t total_len) {
+       char buf[SIZ];
+       size_t bytes = 0;
+       size_t thisblock = 0;
+
+       memset(buffer, 0, total_len);
+       while (bytes < total_len) {
+               thisblock = 4095;
+               if ((total_len - bytes) < thisblock) {
+                       thisblock = total_len - bytes;
+                       if (thisblock == 0) return;
+               }
+               serv_printf("READ %d|%d", (int)bytes, (int)thisblock);
+               serv_getln(buf, sizeof buf);
+               if (buf[0] == '6') {
+                       thisblock = (size_t)atoi(&buf[4]);
+                       if (!WC->connected) return;
+                       serv_read(&buffer[bytes], thisblock);
+                       bytes += thisblock;
+               }
+               else {
+                       lprintf(3, "Error: %s\n", &buf[4]);
+                       return;
                }
        }
+}
 
 
+/*
+ * Read text from server, appending to a string buffer until the
+ * usual 000 terminator is found.  Caller is responsible for freeing
+ * the returned pointer.
+ */
+char *read_server_text(void) {
+       char *text = NULL;
+       size_t bytes_allocated = 0;
+       size_t bytes_read = 0;
+       int linelen;
+       char buf[SIZ];
+
+       text = malloc(SIZ);
+       if (text == NULL) {
+               return(NULL);
+       }
+       text[0] = 0;
+       bytes_allocated = SIZ;
+
+       while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
+               linelen = strlen(buf);
+               buf[linelen] = '\n';
+               buf[linelen+1] = 0;
+               ++linelen;
+
+               if ((bytes_read + linelen) >= (bytes_allocated - 2)) {
+                       bytes_allocated = 2 * bytes_allocated;
+                       text = realloc(text, bytes_allocated);
+               }
 
+               strcpy(&text[bytes_read], buf);
+               bytes_read += linelen;
+       }
 
+       return(text);
+}