* USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $Log: wtcl.c,v $
- * Revision 1.1 1995/10/20 14:02:42 adam
+ * Revision 1.12 1996/03/07 12:45:34 adam
+ * New Tcl calls egw_enc/egw_dec to encode/decode binary URL info.
+ *
+ * Revision 1.11 1996/01/24 08:26:56 adam
+ * All tcl commands prefixed with egw_ (except the html command).
+ *
+ * Revision 1.10 1995/11/08 16:14:35 adam
+ * Many improvements and bug fixes.
+ * First version that ran on dtbsun.
+ *
+ * Revision 1.9 1995/11/07 14:57:00 adam
+ * Work on search in multiple targets.
+ * New wtcl command: wlog.
+ * Optional timeout parameter to zwait.
+ *
+ * Revision 1.8 1995/11/06 17:44:23 adam
+ * State reestablised when shell restarts. History of previous
+ * result sets.
+ *
+ * Revision 1.7 1995/10/31 16:56:25 adam
+ * Record presentation.
+ *
+ * Revision 1.6 1995/10/31 10:03:54 adam
+ * Work on queries.
+ * New command implemented - aborts script.
+ *
+ * Revision 1.5 1995/10/30 17:35:18 adam
+ * New function zwait that waits for a variable change - due to i/o events
+ * that invoke callback routines.
+ *
+ * Revision 1.4 1995/10/27 17:30:16 adam
+ * First search request/response that works.
+ *
+ * Revision 1.3 1995/10/27 15:12:14 adam
+ * IrTcl incorporated in the gateway.
+ * Better separation of script types.
+ * Z39.50 gateway scripts entered.
+ *
+ * Revision 1.2 1995/10/23 16:55:43 adam
+ * A lot of changes - really.
+ *
+ * Revision 1.1 1995/10/20 14:02:42 adam
* First version of WWW gateway with embedded Tcl.
*
*/
#include <assert.h>
#include <ctype.h>
-#include <tcl.h>
-
-#include "wproto.h"
-#include "winterp.h"
+#include "wtcl.h"
-static void *do_create (void *args);
-static int do_exec (WCLIENT wcl, const char *fname, char *parms, void *mydata);
+static void *do_create (WCLIENT wcl, void *args);
+static int do_exec (const char *fname, char *parms, void *mydata);
+static int do_load (char *parms, void *mydata);
+static int do_save (char *parms, void *mydata);
static struct w_interp_type w_interp_t = {
"tcl",
do_create,
- do_exec
+ do_exec,
+ do_load,
+ do_save
};
W_Interp_Type w_interp_tcl = &w_interp_t;
char *fbuf;
int fbuf_size;
int fbuf_ptr;
+ int wabort;
+ WCLIENT wcl;
};
-static void *do_create (void *args)
+Tcl_Interp *w_interp_tcl_get (W_Interp w_interp)
{
struct tcl_info *p;
+ if (strcmp (w_interp->ctrl->name, "tcl"))
+ {
+ gw_log (GW_LOG_FATAL, mod, "Internal failure");
+ assert (0);
+ }
+ p = (struct tcl_info*) w_interp->mydata;
+ return p->interp;
+}
+
+static int proc_wabort_invoke (ClientData clientData, Tcl_Interp *interp,
+ int argc, char **argv)
+{
+ struct tcl_info *p = (struct tcl_info*) clientData;
+
+ p->wabort = 1;
+ if (argc > 1)
+ Tcl_AppendResult (interp, argv[1], NULL);
+ return TCL_RETURN;
+}
+
+static int proc_wflush_invoke (ClientData clientData, Tcl_Interp *interp,
+ int argc, char **argv)
+{
+ struct tcl_info *p = (struct tcl_info*) clientData;
+
+ wo_flush (p->wcl);
+ return TCL_OK;
+}
+
+static int proc_html_invoke (ClientData clientData, Tcl_Interp *interp,
+ int argc, char **argv)
+{
+ struct tcl_info *p = (struct tcl_info*) clientData;
+ int i;
+
+ for (i = 1; i<argc; i++)
+ wo_write (p->wcl, argv[i], strlen(argv[i]));
+ return TCL_OK;
+}
+
+static int proc_wform_invoke (ClientData clientData, Tcl_Interp *interp,
+ int argc, char **argv)
+{
+ struct tcl_info *p = (struct tcl_info*) clientData;
+ int i;
+ if (argc == 2)
+ {
+ for (i = 0; *p->wcl->wf_data[i].name; i++)
+ if (!strcmp (argv[1], p->wcl->wf_data[i].name) &&
+ *p->wcl->wf_data[i].value)
+ Tcl_AppendElement (p->interp, p->wcl->wf_data[i].value);
+ return TCL_OK;
+ }
+ for (i = 0; *p->wcl->wf_data[i].name; i++)
+ {
+ Tcl_AppendResult (p->interp, "{ ", NULL);
+ Tcl_AppendElement (p->interp, p->wcl->wf_data[i].name);
+ Tcl_AppendElement (p->interp, p->wcl->wf_data[i].value);
+ Tcl_AppendResult (p->interp, " }\n", NULL);
+ }
+ return TCL_OK;
+}
+
+static int proc_wlog_invoke (ClientData clientData, Tcl_Interp *interp,
+ int argc, char **argv)
+{
+ unsigned mask;
+
+ if (argc < 3)
+ return TCL_OK;
+ if (!strcmp (argv[1], "debug"))
+ mask = GW_LOG_DEBUG;
+ else if (!strcmp (argv[1], "fatal"))
+ mask = GW_LOG_FATAL;
+ else if (!strcmp (argv[1], "warn"))
+ mask = GW_LOG_WARN;
+ else if (!strcmp (argv[1], "acct"))
+ mask = GW_LOG_ACCT;
+ else
+ mask = GW_LOG_DEBUG;
+ switch (argc)
+ {
+ case 3:
+ gw_log (mask, mod, "%s", argv[2]);
+ break;
+ case 4:
+ gw_log (mask, mod, "%s %s", argv[2], argv[3]);
+ break;
+ case 5:
+ gw_log (mask, mod, "%s %s %s", argv[2], argv[3], argv[4]);
+ break;
+ case 6:
+ gw_log (mask, mod, "%s %s %s %s", argv[2], argv[3], argv[4], argv[5]);
+ break;
+ }
+ return TCL_OK;
+}
+
+static int proc_enc (ClientData clientData, Tcl_Interp *interp,
+ int argc, char **argv)
+{
+ int i;
+ char buf1[4];
+ char buf2[2];
+
+ buf1[0] = '%';
+ buf2[1] = '\0';
+ for (i = 1; i<argc; i++)
+ {
+ const char *cp = argv[i];
+ while (*cp)
+ {
+ if (*cp <= ' ' || *cp >= 127 || *cp == '/' || *cp == ' ' ||
+ *cp == '&' || *cp == ':' || *cp == '%')
+ {
+ sprintf (buf1+1, "%02X", *cp);
+ Tcl_AppendResult (interp, buf1, NULL);
+ }
+ else
+ {
+ buf2[0] = *cp;
+ Tcl_AppendResult (interp, buf2, NULL);
+ }
+ cp++;
+ }
+ }
+ return TCL_OK;
+}
+
+static int proc_dec (ClientData clientData, Tcl_Interp *interp,
+ int argc, char **argv)
+{
+ int i;
+ unsigned val;
+ char buf[2];
+
+ buf[1] = '\0';
+ for (i = 1; i<argc; i++)
+ {
+ const char *cp = argv[i];
+ while (*cp)
+ {
+ if (*cp == '%' && cp[1] && cp[2])
+ {
+ if (cp[1] >= 'A')
+ val = cp[1] - 'A'+10;
+ else
+ val = cp[1] - '0';
+
+
+ if (cp[2] >= 'A')
+ val = val*16 + (cp[2] - 'A'+10);
+ else
+ val = val*16 + (cp[2] - '0');
+ buf[0] = val;
+ cp += 3;
+ }
+ else
+ buf[0] = *cp++;
+ Tcl_AppendResult (interp, buf, NULL);
+ }
+ }
+ return TCL_OK;
+}
+
+
+int Tcl_AppInit (Tcl_Interp *interp)
+{
+ if (Tcl_Init (interp) == TCL_ERROR)
+ return TCL_ERROR;
+ return TCL_OK;
+}
+
+static void *do_create (WCLIENT wcl, void *args)
+{
+ struct tcl_info *p;
+ char tmp_str[256];
+
if (!(p = malloc (sizeof(*p))))
{
gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: tcl_info");
gw_log (GW_LOG_FATAL, mod, "Cannot make Tcl_Interp");
exit (1);
}
+ p->wcl = wcl;
p->fbuf_size = 1024;
if (!(p->fbuf = malloc (p->fbuf_size)))
{
gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: tcl_info fbuf");
exit (1);
}
+ Tcl_AppInit (p->interp);
+ Tcl_CreateCommand (p->interp, "html", proc_html_invoke, p, NULL);
+ Tcl_CreateCommand (p->interp, "egw_form", proc_wform_invoke, p, NULL);
+ Tcl_CreateCommand (p->interp, "egw_abort", proc_wabort_invoke, p, NULL);
+ Tcl_CreateCommand (p->interp, "egw_flush", proc_wflush_invoke, p, NULL);
+ Tcl_CreateCommand (p->interp, "egw_log", proc_wlog_invoke, p, NULL);
+ Tcl_CreateCommand (p->interp, "egw_enc", proc_enc, p, NULL);
+ Tcl_CreateCommand (p->interp, "egw_dec", proc_dec, p, NULL);
+ sprintf (tmp_str, "%d", wcl->id);
+ Tcl_SetVar (p->interp, "sessionId", tmp_str, TCL_GLOBAL_ONLY);
return p;
}
-static int tcl_exec (WCLIENT wcl, const char *fname, char *parms,
+static void report_error (struct tcl_info *p, int errorLine,
+ const char *pre, const char *msg)
+{
+ if (!msg)
+ msg = "";
+ gw_log (GW_LOG_WARN, mod, "%s %d %s", pre, errorLine, msg);
+ wo_printf (p->wcl, "\n<br><hr>\n<strong>"
+ "%s %d</strong><br>\n", pre, errorLine);
+ wo_printf (p->wcl, "<xmp>\n%s</xmp>\n<hr>\n", msg);
+}
+
+static int tcl_exec (const char *fname, char *parms,
struct tcl_info *p, FILE *inf, int *lineno)
{
int c, escape = 0, level = 0;
int r, fbuf_ptr = 0;
int local_line = 0;
- gw_log (GW_LOG_DEBUG, mod, "tcl_exec. line %d", *lineno);
while (1)
{
if (fbuf_ptr == p->fbuf_size-1)
c = getc (inf);
if (c == EOF)
{
- gw_log (GW_LOG_WARN, mod, "Unexpected EOF: unbalanced braces");
- return -1;
+ report_error (p, *lineno, "Error in Tcl script starting at line",
+ "Unexpected EOF (missing right brace)");
+ return TCL_ERROR;
}
if (c == '\\')
escape = 1;
p->fbuf[fbuf_ptr++] = c;
}
p->fbuf[fbuf_ptr] = '\0';
- gw_log (GW_LOG_DEBUG, mod, "Tcl_Eval. %d lines", local_line);
+ p->wabort = 0;
r = Tcl_Eval (p->interp, p->fbuf);
- if (r != TCL_OK)
- {
- gw_log (GW_LOG_WARN, mod, "Error in Tcl script starting on line %d",
- *lineno);
- }
+ if (r == TCL_ERROR)
+ report_error (p, p->interp->errorLine + *lineno - 1,
+ "Error in Tcl script in line",
+ Tcl_GetVar (p->interp, "errorInfo", 0));
(*lineno) += local_line;
- return 0;
+ if (p->wabort)
+ return TCL_RETURN;
+ return r;
}
-static int do_exec (WCLIENT wcl, const char *fname, char *parms,
- void *mydata)
+static int do_exec (const char *fname, char *parms, void *mydata)
{
struct tcl_info *p = mydata;
int c, escape = 0;
gw_log (GW_LOG_WARN|GW_LOG_ERRNO, mod, "open %s", fname);
return -1;
}
+ Tcl_SetVar (p->interp, "sessionParms", parms, TCL_GLOBAL_ONLY);
while ((c = getc(inf)) != EOF)
{
if (c == '\\')
else if (c == '{')
{
if (escape)
- wo_putc (wcl, c);
+ wo_putc (p->wcl, c);
else
{
- if (tcl_exec (wcl, fname, parms, p, inf, &lineno))
+ int r = tcl_exec (fname, parms, p, inf, &lineno);
+ if (r == TCL_RETURN)
+ {
+ fclose (inf);
+ return 0;
+ }
+ else if (r == TCL_ERROR)
{
fclose (inf);
return -2;
if (c == '\n')
lineno++;
escape = 0;
- wo_putc (wcl, c);
+ wo_putc (p->wcl, c);
}
}
fclose (inf);
return 0;
}
+
+
+static int do_load (char *parms, void *mydata)
+{
+ struct tcl_info *p = mydata;
+ char fname[80];
+ int r;
+
+ sprintf (fname, "tcl.state.%d", p->wcl->id);
+ r = Tcl_EvalFile (p->interp, fname);
+ if (r == TCL_ERROR)
+ gw_log (GW_LOG_WARN, mod, "Cannot load Tcl state" );
+ return 0;
+}
+
+static int do_save (char *parms, void *mydata)
+{
+ struct tcl_info *p = mydata;
+ struct Tcl_CmdInfo cinfo;
+
+ if (Tcl_GetCommandInfo(p->interp, "saveState", &cinfo))
+ {
+ int r;
+
+ gw_log (GW_LOG_DEBUG, mod, "saveState");
+ r = Tcl_Eval (p->interp, "saveState\n");
+ if (r == TCL_ERROR)
+ report_error (p, p->interp->errorLine,
+ "Error in Tcl saveState in line",
+ Tcl_GetVar (p->interp, "errorInfo", 0));
+ }
+ return 0;
+}
+
projects / egate.git / blobdiff