* Europagate, 1995
*
* $Log: urp.c,v $
- * Revision 1.2 1995/02/16 13:21:00 adam
+ * Revision 1.5 1995/02/17 14:22:13 adam
+ * First steps of CCL show command. Not finished yet.
+ *
+ * Revision 1.4 1995/02/17 09:08:36 adam
+ * Reply with subject. CCL base command implemented.
+ *
+ * Revision 1.3 1995/02/16 18:35:09 adam
+ * First use of Zdist library. Search requests are supported.
+ * Present requests are not supported yet.
+ *
+ * Revision 1.2 1995/02/16 13:21:00 adam
* Organization of resource files for targets and conversion
* language implemented.
*
#include <assert.h>
#include <ctype.h>
#include <string.h>
+#include <unistd.h>
#include "kernel.h"
#define LINE_MAX 256
+static int reopen_target (void)
+{
+ const char *v;
+ if (info.zass)
+ gw_log (GW_LOG_WARN, "urp", "Zass free...");
+ info.zass = zass_open (info.hostname, info.port);
+ if (!info.zass)
+ {
+ fprintf (reply_fd, "%s %s:%d\n",
+ gw_res_get (info.kernel_res, "gw.err.connect",
+ "Cannot connect to target"),
+ info.hostname, info.port);
+ return -1;
+ }
+ v = gw_res_get (info.kernel_res, "gw.description", NULL);
+ if (v)
+ fprintf (reply_fd, "%s\n", v);
+ fprintf (reply_fd, "%s %s:%d\n %s\n",
+ gw_res_get (info.kernel_res, "gw.msg.databases",
+ "Available databases on"),
+ info.hostname, info.port, info.databases);
+ return 0;
+}
+
static char line_buf[LINE_MAX+1];
static struct command_word {
sprintf (resource_name, "%s%s", resource_prefix,
tab->resource_suffix);
- v = gw_res_get (kernel_res, resource_name, tab->default_value);
+ v = gw_res_get (info.kernel_res, resource_name, tab->default_value);
assert (v);
strcpy (command_names, v);
cp = command_names;
return NULL;
}
-static int email_header (FILE *inf, char *from_str)
+static int email_header (FILE *inf, char *from_str, char *subject_str)
{
*from_str = '\0';
+ *subject_str = '\0';
while (fgets (line_buf, LINE_MAX, inf))
{
if (line_buf[0] == '\n')
return 0;
if (strncmp (line_buf, "From ", 5) == 0)
sscanf (line_buf+4, "%s", from_str);
+ if (strncmp (line_buf, "Subject: ", 9) == 0 &&
+ sscanf (line_buf+9, "%s", subject_str+1) == 1)
+ strcpy (subject_str, line_buf+9);
}
return 1;
}
static int exec_find (struct ccl_token *list)
{
+ const struct zass_searchent *p;
+
struct ccl_rpn_node *rpn;
int error;
const char *pos;
- rpn = ccl_find (bibset, list, &error, &pos);
+ rpn = ccl_find (info.bibset, list, &error, &pos);
if (!rpn)
{
const char *v = NULL, *n;
if (n)
{
sprintf (name, "gw.err.%s", n);
- v = gw_res_get (kernel_res, name, NULL);
+ v = gw_res_get (info.kernel_res, name, NULL);
}
if (!v)
v = ccl_err_msg (error);
}
ccl_pr_tree (rpn, reply_fd);
fprintf (reply_fd, "\n");
+
+ if (!info.zass)
+ return -2;
+ p = zass_search (info.zass, rpn, "Default", info.databases);
+ if (!p)
+ return -1;
+ fprintf (reply_fd, "%d %s\n", p->num,
+ gw_res_get (info.kernel_res, "gw.msg.hits", "hit(s)"));
+ if (p->errcode != -1)
+ fprintf (reply_fd, "%s %d: %s\n",
+ gw_res_get (info.kernel_res, "gw.msg.z39errcode",
+ "Z39.50 error code"),
+ p->errcode, p->errstring);
+ return 0;
+}
+
+static int exec_target (struct ccl_token *list)
+{
+ int len;
+ if (list->kind == CCL_TOK_EOL)
+ return -1;
+ len = list->len;
+ memcpy (info.target, list->name, len);
+ info.target [len] = '\0';
+
+ read_kernel_res ();
+ return reopen_target ();
+}
+
+static int exec_base (struct ccl_token *list)
+{
+ struct ccl_token *li = list;
+ int len = 0;
+
+ if (list->kind == CCL_TOK_EOL)
+ return -1;
+ free (info.databases);
+ while (li->kind != CCL_TOK_EOL)
+ {
+ len += li->len + 1;
+ li = li->next;
+ if (li->kind == CCL_TOK_COMMA)
+ li = li->next;
+ }
+ info.databases = malloc (len);
+ assert (info.databases);
+ len = 0;
+ li = list;
+ while (li->kind != CCL_TOK_EOL)
+ {
+ memcpy (info.databases+len, li->name, li->len);
+ len += li->len;
+ info.databases[len++] = ',';
+ li = li->next;
+ if (li->kind == CCL_TOK_COMMA)
+ li = li->next;
+ }
+ info.databases[len-1] = '\0';
+ return 0;
+}
+
+static int exec_show (struct ccl_token *list)
+{
+ const struct zass_presentent *zp;
+ char num_str[20];
+ int num;
+
+ if (list->kind == CCL_TOK_EOL)
+ return -1;
+ if (!info.zass)
+ return -2;
+
+ memcpy (num_str, list->name, list->len);
+ num_str[list->len] = '\0';
+
+ num = atoi (num_str);
+ if (!num)
+ return -3;
+ gw_log (GW_LOG_DEBUG, "urp", "zass_present of %d records", num);
+ zp = zass_present(info.zass, "Default", 1, num);
return 0;
}
struct ccl_token *cmd = ccl_tokenize (str);
int no;
- fprintf (reply_fd, "> %s", str);
if (cmd->kind != CCL_TOK_EOL &&
(no = command_search (command_tab, cmd, "ccl.command.")))
{
+ if (!info.zass && no != 9)
+ reopen_target ();
+ fprintf (reply_fd, "\n> %s", str);
switch (no)
{
case 1:
return exec_find (cmd->next);
- break;
+ case 2:
+ return exec_show (cmd->next);
+ case 3:
+ return exec_base (cmd->next);
+ case 9:
+ return exec_target (cmd->next);
default:
- fprintf (reply_fd, " %s\n",
- gw_res_get (kernel_res, "gw.err.unimplemented",
+ fprintf (reply_fd, "%s\n",
+ gw_res_get (info.kernel_res, "gw.err.unimplemented",
"Not implemented yet"));
}
}
else
{
+ fprintf (reply_fd, "\n> %s", str);
fprintf (reply_fd, " ^ %s\n",
- gw_res_get (kernel_res, "gw.err.unknown.command",
+ gw_res_get (info.kernel_res, "gw.err.unknown.command",
"unknown command"));
}
return 0;
int urp (FILE *inf)
{
char from_str[128];
+ char subject_str[128];
int command_no = 0;
char *reply_fname = NULL;
- if (email_header (inf, from_str))
+ if (email_header (inf, from_str, subject_str))
{
gw_log (GW_LOG_WARN, "urp", "No message body");
return -1;
}
if (*from_str)
{
- reply_fname = tempnam (gw_res_get (kernel_res,
+ reply_fname = tempnam (gw_res_get (info.kernel_res,
"gw.reply.tmp.dir", NULL),
- gw_res_get (kernel_res,
+ gw_res_get (info.kernel_res,
"gw.reply.tmp.prefix", "gwr"));
reply_fd = fopen (reply_fname, "w");
reply_fname);
return -1;
}
+ fprintf (reply_fd, "Subject: ");
+ if (*subject_str)
+ fprintf (reply_fd, "Z39.50 Re: %s", subject_str);
+ else
+ fprintf (reply_fd, "%s\n", gw_res_get (info.kernel_res,
+ "gw.msg.subject",
+ "Your Z39.50 Query"));
+ fprintf (reply_fd, "\n");
}
else
gw_log (GW_LOG_WARN, "urp", "No From in email header");
- fprintf (reply_fd, "%s\n", gw_res_get (kernel_res, "gw.msg.greeting",
+ fprintf (reply_fd, "%s\n", gw_res_get (info.kernel_res, "gw.msg.greeting",
"Email->Z39.50 gateway"));
while (fgets (line_buf, LINE_MAX, inf))
{
if (line_buf[0] == '\n')
break;
- ccl_token_and = gw_res_get (kernel_res, "ccl.token.and", "and");
- ccl_token_or = gw_res_get (kernel_res, "ccl.token.or", "or");
- ccl_token_not = gw_res_get (kernel_res, "ccl.token.not", "not");
- ccl_token_set = gw_res_get (kernel_res, "ccl.token.set", "set");
+ 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");
if (isalpha (line_buf[0]))
exec_command (line_buf);
command_no++;
}
if (!command_no)
- fprintf (reply_fd, "%s\n", gw_res_get (kernel_res, "gw.err.nullbody",
+ fprintf (reply_fd, "%s\n", gw_res_get (info.kernel_res,
+ "gw.err.nullbody",
"No body"));
if (*from_str)
{
fclose (reply_fd);
reply_fd = stdout;
- mta = gw_res_get (kernel_res, "gw.reply.mta", "/usr/lib/sendmail");
+ mta = gw_res_get (info.kernel_res, "gw.reply.mta",
+ "/usr/lib/sendmail");
sprintf (cmd, "%s %s < %s", mta, from_str, reply_fname);
mta_code = system (cmd);
projects / egate.git / blobdiff