+/*
+ * Copyright (c) 1995, the EUROPAGATE consortium (see below).
+ *
+ * The EUROPAGATE consortium members are:
+ *
+ * University College Dublin
+ * Danmarks Teknologiske Videnscenter
+ * An Chomhairle Leabharlanna
+ * Consejo Superior de Investigaciones Cientificas
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and
+ * its documentation, in whole or in part, for any purpose, is hereby granted,
+ * provided that:
+ *
+ * 1. This copyright and permission notice appear in all copies of the
+ * software and its documentation. Notices of copyright or attribution
+ * which appear at the beginning of any file must remain unchanged.
+ *
+ * 2. The names of EUROPAGATE or the project partners may not be used to
+ * endorse or promote products derived from this software without specific
+ * prior written permission.
+ *
+ * 3. Users of this software (implementors and gateway operators) agree to
+ * inform the EUROPAGATE consortium of their use of the software. This
+ * information will be used to evaluate the EUROPAGATE project and the
+ * software, and to plan further developments. The consortium may use
+ * the information in later publications.
+ *
+ * 4. Users of this software agree to make their best efforts, when
+ * documenting their use of the software, to acknowledge the EUROPAGATE
+ * consortium, and the role played by the software in their work.
+ *
+ * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
+ * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
+ * IN NO EVENT SHALL THE EUROPAGATE CONSORTIUM OR ITS MEMBERS BE LIABLE
+ * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF
+ * ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
+ * OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND
+ * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
+ * USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ */
/* Gateway kernel - User Request Processor
* Europagate, 1995
*
* $Log: urp.c,v $
- * Revision 1.29 1995/04/19 16:01:58 adam
+ * Revision 1.45 1995/07/20 08:20:24 adam
+ * Minor changes.
+ *
+ * Revision 1.44 1995/07/11 12:28:53 adam
+ * New functions ccl_token_simple and ccl_token_del used.
+ *
+ * Revision 1.43 1995/07/11 11:49:13 adam
+ * LINE_MAX renamed to STR_LINE_MAX.
+ *
+ * Revision 1.42 1995/07/03 12:59:29 adam
+ * New option for eti: -c dir to chdir before start.
+ * Setting change: gw.max.show defaults to 100.
+ *
+ * Revision 1.41 1995/07/03 08:20:18 adam
+ * More help information and better diagnostics.
+ *
+ * Revision 1.40 1995/05/23 08:13:00 adam
+ * Minor changes.
+ *
+ * Revision 1.39 1995/05/22 14:57:30 adam
+ * Next default record position also set by last p=... in show.
+ *
+ * Revision 1.38 1995/05/19 13:26:00 adam
+ * Bug fixes. Better command line options.
+ *
+ * Revision 1.37 1995/05/18 12:03:09 adam
+ * Bug fixes and minor improvements.
+ *
+ * Revision 1.36 1995/05/17 10:51:33 adam
+ * Added a few more error checks to the show command.
+ *
+ * Revision 1.35 1995/05/16 09:40:43 adam
+ * LICENSE. Setting of CCL token names (and/or/not/set) in read_kernel_res.
+ *
+ * Revision 1.34 1995/05/04 10:40:08 adam
+ * More work on Def-settings.
+ *
+ * Revision 1.33 1995/05/03 16:34:19 adam
+ * CCL def command, i.e. user definitions - saved as resource files.
+ *
+ * Revision 1.32 1995/05/03 07:37:46 adam
+ * CCL commands stop/continue implemented. New functions gw_res_{int,bool}
+ * are used when possible.
+ *
+ * Revision 1.31 1995/05/01 12:43:38 adam
+ * First work on resource monitor program.
+ *
+ * Revision 1.30 1995/04/20 16:10:47 adam
+ * Modified to work with non-blocking zass-api. Not using non-blocking
+ * facility yet.
+ *
+ * Revision 1.29 1995/04/19 16:01:58 adam
* Some hacks to get the FIFO communication work!! Isn't reliable.
* Resource gw.account added - default account info.
*
*
*/
+/*
+ Todo:
+ info/status (other name?)
+ better persistence diagnostics
+
+ Optional:
+ automatic information about target-aliases: name, query-support, etc.
+ */
+
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <unistd.h>
#include <fcntl.h>
+#include <lgets.h>
#include <ttyemit.h>
#include <strqueue.h>
#include "kernel.h"
-static char line_buf[LINE_MAX+1];
+static void present (const char *set, int offset, int number,
+ struct ccl_token *format_token);
+
+static char line_buf[STR_LINE_MAX+1];
static void put_esc_str (const char *s)
{
tty_emit (*s++);
}
-int lgets (char *buf, int max, int fd)
-{
- int r, no = 0;
-
- --max;
- while (no <= max)
- {
- if ((r=read (fd, buf+no, 1)) != 1)
- {
- if (r == -1)
- gw_log (GW_LOG_WARN|GW_LOG_ERRNO, KERNEL_LOG, "read fail");
- else
- gw_log (GW_LOG_WARN, KERNEL_LOG, "read eof");
- buf[no] = '\0';
- return 0;
- }
- if (buf[no] == 1)
- return 0;
- if (buf[no++] == '\n')
- break;
- }
- buf[no] = '\0';
- return 1;
-}
-
int reopen_target (void)
{
const char *v;
if (info.zass)
gw_log (GW_LOG_WARN, KERNEL_LOG, "Zass free...");
gw_log (GW_LOG_DEBUG, KERNEL_LOG, "reopen_target");
- info.zass = zass_open (info.hostname, info.port, *info.account ?
- info.account : NULL);
+ info.zass = zass_open (info.hostname, info.port, NULL, /* complete */
+ *info.account ? info.account : NULL);
if (!info.zass)
{
gw_log (GW_LOG_DEBUG, KERNEL_LOG, "Cannot connect to target %s:%d",
"Connection established to"),
info.hostname, info.port);
if (*info.databases)
- fprintf (reply_fd, "%s:\n%s\n",
+ fprintf (reply_fd, "%s: %s\n",
gw_res_get (info.kernel_res, "gw.msg.databases",
"Available databases"),
info.databases);
if (*info.database)
- fprintf (reply_fd, "%s:\n%s\n",
+ fprintf (reply_fd, "%s: %s\n",
gw_res_get (info.kernel_res, "gw.msg.database",
"Selected databases"),
info.database);
return 0;
}
-
-static struct command_word {
+struct command_word {
char *default_value;
char *resource_suffix;
-} command_tab [] =
-{
-{ "find", "find"},
-{ "show", "show"},
-{ "base", "base" },
-{ "help", "help" },
-{ "info", "info" },
-{ "continue", "continue" },
-{ "status", "status" },
-{ "cancel", "cancel" },
-{ "target", "target" },
-{ "stop", "stop" },
-{ "account", "account" },
-{ NULL, NULL }
};
-static int command_search (struct command_word *tab, struct ccl_token *cmd,
-const char *resource_prefix)
+static int command_search_str (struct command_word *tab, const char *cmd_name,
+ int cmd_len, const char *resource_prefix)
{
int no = 1;
assert (resource_prefix);
assert (tab);
- assert (cmd);
while (tab->default_value)
{
char *cp, command_names[60];
if ((split = strchr (cp, ' ')))
*split = '\0';
- if (cmd->len == strlen(cp) &&
- !memcmp (cmd->name, cp, cmd->len))
+ if (cmd_len == strlen(cp) &&
+ !memcmp (cmd_name, cp, cmd_len))
return no;
if (!split)
break;
return 0;
}
+static int command_search (struct command_word *tab, struct ccl_token *cmd,
+ const char *resource_prefix)
+{
+ return command_search_str (tab, cmd->name, cmd->len, resource_prefix);
+}
+
static struct error_no_struct {
int no;
char *resource_name;
{
*from_str = '\0';
*subject_str = '\0';
- while (str_queue_deq (sq, line_buf, LINE_MAX))
+ while (str_queue_deq (sq, line_buf, STR_LINE_MAX))
{
if (line_buf[0] == '\n')
return 0;
static char *sep = "-------------------------------\\n";
help_general ();
-#if 1
put_esc_str (sep);
put_esc_str (gw_res_get (info.kernel_res, "gw.help.target",
"target <name> - selects a given target\n"));
put_esc_str (gw_res_get (info.kernel_res, "gw.help.show",
"show <spec> - retrieves and displays "
"records\n"));
-#endif
+ put_esc_str (sep);
+ put_esc_str (gw_res_get (info.kernel_res, "gw.help.def",
+ "def <setting> <value> sets/gets definitons\n"));
+ put_esc_str (sep);
+ put_esc_str (gw_res_get (info.kernel_res, "gw.help.account",
+ "account <str> sets authentication string\n"));
return 0;
}
const struct zass_searchent *p;
struct gw_user_set *us;
char setname[32];
+ int autoshow;
struct ccl_rpn_node *rpn;
int error;
strcpy (setname, "Default");
else
sprintf (setname, "%d", info.setno);
+ info.next_position = 1;
+ if (info.setno >= 0)
+ info.setno++;
rpn = ccl_find (info.bibset, list, &error, &pos);
if (!rpn)
{
gw_log (GW_LOG_DEBUG, KERNEL_LOG, "Searching in database %s",
info.database );
assert (info.zass);
- fprintf (reply_fd, "Searching in database %s\n", info.database);
p = zass_p_search (info.zass, rpn, setname, info.database, info.sets);
if (!p)
{
- fprintf (reply_fd, "Search fail\n");
+ fprintf (reply_fd, "%s\n",
+ gw_res_get (info.kernel_res, "gw.err.search.fail",
+ "Search fail."));
return -1;
}
if (p->errcode != -1)
display_diag_error (p->errcode, p->errstring);
return -2;
}
- fprintf (reply_fd, "%d %s\n", p->num,
- gw_res_get (info.kernel_res, "gw.msg.hits", "hit(s)"));
+ fprintf (reply_fd, "%d %s %s\n", p->num,
+ gw_res_get (info.kernel_res, "gw.msg.hits", "hit(s) in set "),
+ setname);
us = user_set_add (setname, p->num, info.database, rpn, 1, search_str);
- fprintf (reply_fd, "Result-set %s created\n", setname);
- if (info.setno >= 0)
- info.setno++;
+ autoshow = gw_res_int (info.kernel_res, "gw.auto.show", 0);
+ if (autoshow && p->num > 0)
+ {
+ if (autoshow > p->num)
+ {
+ present (setname, 1, p->num, NULL);
+ info.next_position = 1+p->num;
+ }
+ else
+ {
+ present (setname, 1, autoshow, NULL);
+ info.next_position = 1+autoshow;
+ }
+ }
return 0;
}
static int exec_status (struct ccl_token *list)
{
- fprintf (reply_fd, " Name Hits Database Find\n");
+ fprintf (reply_fd, "%s\n",
+ gw_res_get (info.kernel_res,
+ "gw.msg.statusline",
+ " Name Hits Database Find"));
exec_status_r (info.sets);
return 0;
}
return 0;
}
-struct command_word show_tab [] =
-{
-{ "f", "format"},
-{ "p", "position"},
-{ NULL, NULL }
-};
-
static void present (const char *set, int offset, int number,
struct ccl_token *format_token)
{
int max_number;
char format_str[16];
- max_number = atoi (gw_res_get (info.kernel_res, "gw.max.show",
- "200"));
+ max_number = gw_res_int (info.kernel_res, "gw.max.show", 100);
if (number > max_number)
number = max_number;
gw_log (GW_LOG_DEBUG, KERNEL_LOG, "present in set %s", set);
{
int i;
zass_record *pp;
- char path[128];
int record_log_fd = -1;
const char *record_log_name;
NULL);
if (record_log_name)
{
- sprintf (path, "%s/%s", gw_res_get (info.kernel_res,
- "gw.path", "."),
- record_log_name );
- record_log_fd = open (path, O_WRONLY|O_CREAT|O_APPEND, 0666);
+ record_log_fd = open (record_log_name,
+ O_WRONLY|O_CREAT|O_APPEND, 0666);
if (record_log_fd == -1)
- gw_log (GW_LOG_WARN|GW_LOG_ERRNO, "Cannot open %s", path);
+ gw_log (GW_LOG_WARN|GW_LOG_ERRNO, "Cannot open %s",
+ record_log_name);
}
fprintf (reply_fd, gw_res_get (info.kernel_res,
"gw.msg.records",
if (rec)
{
#if USE_FML
+ strcpy (format_str,
+ gw_res_get (info.kernel_res,
+ "gw.display.format", ""));
if (format_token)
{
len = format_token->len;
memcpy (format_str, format_token->name, len);
format_str[len] = '\0';
}
- if (info.fml && format_token &&
+ if (info.fml && *format_str &&
(!strcmp (format_str, "0") || !strcmp (format_str, "1")
|| !strcmp(format_str, "2")))
{
static int exec_show (struct ccl_token *list)
{
+ static struct command_word show_tab [] =
+ {
+ { "f", "format"},
+ { "p", "position"},
+ { NULL, NULL }
+ };
char tmp_str[20];
struct ccl_token *set_token = NULL;
struct ccl_token *format_token = NULL;
li = li->next;
}
else
+ {
+ int len = li->len;
+ memcpy (tmp_str, li->name, len);
+ tmp_str[len] = '\0';
+ if (atoi(tmp_str) <= 0)
+ {
+ fprintf (reply_fd, "%s\n",
+ gw_res_get (info.kernel_res, "gw.err.bad.show",
+ "Syntax error"));
+ return -3;
+ }
li = li->next;
+ }
}
if (set_token)
gw_log (GW_LOG_DEBUG, KERNEL_LOG, "Got set=%.*s", set_token->len,
memcpy (tmp_str, li->name, len);
tmp_str [len] = '\0';
number = atoi (tmp_str) - offset + 1;
+ if (number <= 0)
+ {
+ fprintf (reply_fd, "%s\n",
+ gw_res_get (info.kernel_res,
+ "gw.err.pos.show",
+ "Starting position "
+ "greater than ending position"));
+ return -3;
+ }
}
else
{
}
li = li->next;
}
- else
+ else if (li->kind == CCL_TOK_TERM)
{
len = li->len;
memcpy (tmp_str, li->name, len);
if (offset+number-1 > us->hits)
number = us->hits - offset+1;
present (us->name, offset, number, format_token);
+ info.next_position = offset+number;
}
}
else if (!no_of_present) /* display error message once! */
us = user_set_search (NULL);
if (us && us->hits != -1) /* proper result-set? */
{
- default_show = atoi (gw_res_get (info.kernel_res,
- "gw.default.show", "20"));
- if (us->hits > default_show)
- present (us->name, 1, default_show, format_token);
- else if (us->hits > 0)
- present (us->name, 1, us->hits, format_token);
+ default_show = gw_res_int (info.kernel_res, "gw.default.show", 20);
+ if (us->hits >= info.next_position + default_show)
+ {
+ present (us->name, info.next_position, default_show,
+ format_token);
+ info.next_position += default_show;
+ }
+ else if (us->hits >= info.next_position)
+ {
+ present (us->name, info.next_position,
+ us->hits - info.next_position + 1,
+ format_token);
+ info.next_position = us->hits + 1;
+ }
}
else /* display error message */
{
return 0;
}
-static int exec_command (const char *str)
+static void show_def (void)
{
- struct ccl_token *cmd = ccl_tokenize (str);
- int no;
+ fprintf (reply_fd, "format %s\n", gw_res_get
+ (info.kernel_res, "gw.display.format", ""));
+ fprintf (reply_fd, "autoshow %s\n", gw_res_get
+ (info.kernel_res, "gw.auto.show", ""));
+ fprintf (reply_fd, "defaultshow %s\n", gw_res_get
+ (info.kernel_res, "gw.default.show", ""));
+ fprintf (reply_fd, "language %s\n", gw_res_get
+ (info.kernel_res, "gw.language", ""));
+}
- if (cmd->kind != CCL_TOK_EOL &&
- (no = command_search (command_tab, cmd, "ccl.command.")))
+static int exec_def (struct ccl_token *list)
+{
+ const char *name = NULL;
+ char value[128];
+ char fname[256];
+ static struct command_word def_tab [] =
{
- if (!info.zass && no != 9 && no != 4 && no != 11 && no != 7)
- reopen_target ();
- fprintf (reply_fd, "\n> %s\n", str);
- if (!info.zass && (no == 1 || no == 2 || no == 3))
+ { "reset", "reset" },
+ { "show", "show" },
+ { "f", "format"},
+ { "autoshow", "autoshow" },
+ { "defaultshow", "defaultshow" },
+ { "lang", "language" },
+ { NULL, NULL }
+ };
+
+ if (info.userid < 0)
+ return -1;
+ sprintf (fname, "user.%d.r", info.userid);
+
+ if (list->kind == CCL_TOK_EOL)
+ show_def ();
+ else
+ {
+ int setting_no = command_search (def_tab, list, "ccl.token.");
+
+ if (!setting_no)
{
- fprintf (reply_fd, "%s\n",
- gw_res_get (info.kernel_res, "gw.err.no.target",
- "No connection established - "
- "command ignored"));
+ fprintf (reply_fd, "Unknown setting in def\n");
+ return -1;
+ }
+ if (setting_no == 1)
+ {
+ unlink (fname);
+ read_kernel_res ();
return 0;
}
-#if 0
- ccl_token_and = gw_res_get (info.kernel_res, "ccl.token.and", "and");
- ccl_token_or = gw_res_get (info.kernel_res, "ccl.token.or", "or");
- ccl_token_not = gw_res_get (info.kernel_res, "ccl.token.not", "not");
- ccl_token_set = gw_res_get (info.kernel_res, "ccl.token.set", "set");
-#endif
- switch (no)
+ else if (setting_no == 2)
+ {
+ show_def ();
+ return 0;
+ }
+ list = list->next;
+ if (list->kind == CCL_TOK_EOL)
+ return 0;
+ strncpy (value, list->name, 127);
+ value[(size_t) list->len] = '\0';
+ switch (setting_no)
{
- case 1:
- return exec_find (cmd->next, str);
- case 2:
- return exec_show (cmd->next);
case 3:
- return exec_base (cmd->next);
+ name = "gw.display.format";
+ break;
case 4:
- return exec_help (cmd->next);
- case 7:
- return exec_status (cmd->next);
- case 9:
- return exec_target (cmd->next);
- case 11:
- return exec_account (cmd->next);
+ name = "gw.auto.show";
+ break;
+ case 5:
+ name = "gw.default.show";
+ break;
+ case 6:
+ name = "gw.language";
+ break;
default:
+ return 0;
+ }
+ gw_log (GW_LOG_DEBUG, KERNEL_LOG, "update file %s with %s=%s",
+ fname, name, value);
+ gw_res_put (info.kernel_res, "gw.username", info.from_str, fname);
+ gw_res_put (info.kernel_res, name, value, fname);
+ gw_res_commit (info.kernel_res, fname);
+ if (setting_no == 6)
+ read_kernel_res ();
+ }
+ return 0;
+}
+
+
+/*
+ * exec_command: parse and execute ccl command in str.
+ * str: ccl command string
+ * stop_flag pointer to integer. On completion the integer
+ * is 1 (stop) or 2 (continue); 0 (other command)
+ * return: 0 success; non-zero otherwise
+ */
+static int exec_command (const char *str, int *stop_flag)
+{
+ static struct command_word command_tab [] =
+ {
+ { "find", "find"},
+ { "show", "show"},
+ { "base", "base" },
+ { "help", "help" },
+ { "info", "info" },
+ { "continue", "continue" },
+ { "status", "status" },
+ { "stop", "stop" },
+ { "target", "target" },
+ { "def", "def" },
+ { "account", "account" },
+ { NULL, NULL }
+ };
+
+ struct ccl_token *cmd;
+ const char *cp = str;
+ int no;
+
+ while (*cp && *cp != ' ' && *cp != '\n' && *cp != '\t' && *cp != '\r')
+ cp++;
+
+ *stop_flag = 0;
+ no = command_search_str (command_tab, str, cp-str, "ccl.command.");
+ if (no)
+ {
+ if (no == 1 || no == 2 || no == 3) /* find/show/base? */
+ {
+ if (!info.zass) /* open if not already opened */
+ reopen_target ();
+ fprintf (reply_fd, "\n> %s\n", str);
+ if (!info.zass) /* fail? */
+ {
+ fprintf (reply_fd, "\n%s\n",
+ gw_res_get (info.kernel_res, "gw.err.no.target",
+ "No connection established - "
+ "command ignored"));
+ return 0;
+ }
+ }
+ else
+ fprintf (reply_fd, "\n> %s\n", str);
+ switch (no)
+ {
+ case 1: /* find */
+ cmd = ccl_tokenize (cp);
+ exec_find (cmd, str);
+ break;
+ case 2: /* show */
+ cmd = ccl_tokenize (cp);
+ exec_show (cmd);
+ break;
+ case 3: /* base */
+ cmd = ccl_token_simple (cp);
+ exec_base (cmd);
+ break;
+ case 4: /* help */
+ cmd = ccl_token_simple (cp);
+ exec_help (cmd);
+ break;
+ case 6: /* continue */
+ *stop_flag = 2;
+ return 0;
+ case 7: /* status */
+ exec_status (cmd);
+ return 0;
+ case 8: /* stop */
+ *stop_flag = 1;
+ return 0;
+ case 9: /* target */
+ cmd = ccl_token_simple (cp);
+ exec_target (cmd);
+ break;
+ case 10: /* def */
+ cmd = ccl_token_simple (cp);
+ exec_def (cmd);
+ break;
+ case 11: /* account */
+ cmd = ccl_token_simple (cp);
+ exec_account (cmd);
+ break;
+ default:
+ cmd = NULL;
fprintf (reply_fd, "%s\n",
gw_res_get (info.kernel_res, "gw.err.unimplemented",
"Not implemented yet"));
}
+ ccl_token_del (cmd);
}
else
{
tty_init (stdout, 40, 70);
if (*info.from_str)
{
- info.reply_fname = tempnam (gw_res_get (info.kernel_res,
- "gw.reply.tmp.dir", NULL),
- gw_res_get (info.kernel_res,
- "gw.reply.tmp.prefix", "gwr"));
-
+ info.reply_fname = (char *)
+ tempnam (gw_res_get (info.kernel_res, "gw.reply.tmp.dir", NULL),
+ gw_res_get (info.kernel_res,
+ "gw.reply.tmp.prefix", "gwr"));
+
reply_fd = fopen (info.reply_fname, "w");
if (!reply_fd)
{
int urp_command (struct str_queue *queue)
{
char *cp;
+ int stop_flag;
- while (str_queue_deq (queue, line_buf, LINE_MAX))
+ while (str_queue_deq (queue, line_buf, STR_LINE_MAX))
{
if (line_buf[0] == '\n')
if (info.command_no)
*cp = '\0';
gw_log (GW_LOG_ACCT, KERNEL_LOG, "cmd: %s", line_buf);
if (isalpha (line_buf[0]))
- exec_command (line_buf);
+ {
+ exec_command (line_buf, &stop_flag);
+ if (stop_flag)
+ {
+ info.command_no++; /* prevent help! */
+ while (str_queue_deq (queue, line_buf, STR_LINE_MAX))
+ ;
+ return stop_flag;
+ }
+ }
info.command_no++;
}
return 0;
mta = gw_res_get (info.kernel_res, "gw.reply.mta",
"/usr/lib/sendmail");
sprintf (cmd, "%s %s < %s", mta, info.from_str, info.reply_fname);
-
mta_code = system (cmd);
if (mta_code)
gw_log (GW_LOG_FATAL, KERNEL_LOG,