* All OS-level includes are now included from webcit.h instead of from
[citadel.git] / webcit / serv_func.c
index 823fb5f85db67eaee12286a66d621c6916e0ecfe..3eb0375eb105ddbbc89caa157cd2c8202cdef21d 100644 (file)
@@ -1,14 +1,12 @@
-/* $Id$ */
+/*
+ * $Id$
+ *
+ * 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;
 
@@ -17,9 +15,10 @@ struct serv_info serv_info;
  */
 void get_serv_info(char *browser_host, char *user_agent)
 {
-       char buf[256];
+       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,
@@ -27,42 +26,60 @@ void get_serv_info(char *browser_host, char *user_agent)
                user_agent,
                browser_host
        );
-       serv_gets(buf);
+       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);
+       serv_getln(buf, sizeof buf);
        if (buf[0] != '1')
                return;
 
        a = 0;
-       while (serv_gets(buf), strcmp(buf, "000")) {
+       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:
-                       strcpy(serv_info.serv_nodename, buf);
+                       safestrncpy(serv_info.serv_nodename, buf, sizeof serv_info.serv_nodename);
                        break;
                case 2:
-                       strcpy(serv_info.serv_humannode, buf);
+                       safestrncpy(serv_info.serv_humannode, buf, sizeof serv_info.serv_humannode);
                        break;
                case 3:
-                       strcpy(serv_info.serv_fqdn, buf);
+                       safestrncpy(serv_info.serv_fqdn, buf, sizeof serv_info.serv_fqdn);
                        break;
                case 4:
-                       strcpy(serv_info.serv_software, buf);
+                       safestrncpy(serv_info.serv_software, buf, sizeof serv_info.serv_software);
                        break;
                case 5:
                        serv_info.serv_rev_level = atoi(buf);
                        break;
                case 6:
-                       strcpy(serv_info.serv_bbs_city, buf);
+                       safestrncpy(serv_info.serv_bbs_city, buf, sizeof serv_info.serv_bbs_city);
                        break;
                case 7:
-                       strcpy(serv_info.serv_sysadm, buf);
+                       safestrncpy(serv_info.serv_sysadm, buf, sizeof serv_info.serv_sysadm);
                        break;
                case 9:
-                       strcpy(serv_info.serv_moreprompt, buf);
+                       safestrncpy(serv_info.serv_moreprompt, buf, sizeof serv_info.serv_moreprompt);
+                       break;
+               case 14:
+                       serv_info.serv_supports_ldap = atoi(buf);
                        break;
                }
                ++a;
@@ -76,45 +93,47 @@ void get_serv_info(char *browser_host, char *user_agent)
  * 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];
+       char buf[SIZ];
 
+       wprintf("<div align=%s>\n", align);
        while (1) {
                if (fp == NULL)
-                       serv_gets(buf);
+                       serv_getln(buf, sizeof buf);
                if (fp != NULL) {
-                       if (fgets(buf, 256, fp) == NULL)
-                               strcpy(buf, "000");
+                       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("<P>\n");
+                       wprintf("</div><br />\n");
                        return;
                }
                if ((intext == 1) && (isspace(buf[0]))) {
-                       wprintf("<BR>");
+                       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);
 
@@ -126,26 +145,37 @@ void fmout(FILE * fp)
 
 
 
-
-
 /*
- * 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)
+void text_to_server(char *ptr, int convert_to_html)
 {
-       char buf[256];
+       char buf[SIZ];
+       char conv[4];
        int ch, a, pos;
 
        pos = 0;
+       buf[0] = 0;
 
-       strcpy(buf, "");
        while (ptr[pos] != 0) {
                ch = ptr[pos++];
                if (ch == 10) {
-                       while (isspace(buf[strlen(buf) - 1]))
+                       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 {
+                               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;
@@ -153,19 +183,17 @@ void text_to_server(char *ptr)
                        if ((ch == 32) && (strlen(buf) > 200)) {
                                buf[a] = 0;
                                serv_puts(buf);
-                               strcpy(buf, "");
+                               buf[0] = 0;
                        }
                        if (strlen(buf) > 250) {
                                serv_puts(buf);
-                               strcpy(buf, "");
+                               buf[0] = 0;
                        }
                }
        }
        serv_puts(buf);
-}
-
-
 
+}
 
 
 
@@ -175,11 +203,11 @@ void text_to_server(char *ptr)
  */
 void server_to_text()
 {
-       char buf[256];
+       char buf[SIZ];
 
        int count = 0;
 
-       while (serv_gets(buf), strcmp(buf, "000")) {
+       while (serv_getln(buf, sizeof buf), strcmp(buf, "000")) {
                if ((buf[0] == 32) && (count > 0)) {
                        wprintf("\n");
                }
@@ -187,3 +215,74 @@ void server_to_text()
                ++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);
+}