2 * Copyright (c) 1995, the EUROPAGATE consortium (see below).
4 * The EUROPAGATE consortium members are:
6 * University College Dublin
7 * Danmarks Teknologiske Videnscenter
8 * An Chomhairle Leabharlanna
9 * Consejo Superior de Investigaciones Cientificas
11 * Permission to use, copy, modify, distribute, and sell this software and
12 * its documentation, in whole or in part, for any purpose, is hereby granted,
15 * 1. This copyright and permission notice appear in all copies of the
16 * software and its documentation. Notices of copyright or attribution
17 * which appear at the beginning of any file must remain unchanged.
19 * 2. The names of EUROPAGATE or the project partners may not be used to
20 * endorse or promote products derived from this software without specific
21 * prior written permission.
23 * 3. Users of this software (implementors and gateway operators) agree to
24 * inform the EUROPAGATE consortium of their use of the software. This
25 * information will be used to evaluate the EUROPAGATE project and the
26 * software, and to plan further developments. The consortium may use
27 * the information in later publications.
29 * 4. Users of this software agree to make their best efforts, when
30 * documenting their use of the software, to acknowledge the EUROPAGATE
31 * consortium, and the role played by the software in their work.
33 * THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT WARRANTY OF ANY KIND,
34 * EXPRESS, IMPLIED, OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
35 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
36 * IN NO EVENT SHALL THE EUROPAGATE CONSORTIUM OR ITS MEMBERS BE LIABLE
37 * FOR ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF
38 * ANY KIND, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA
39 * OR PROFITS, WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND
40 * ON ANY THEORY OF LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE
41 * USE OR PERFORMANCE OF THIS SOFTWARE.
44 * Revision 1.13 1996/03/14 11:48:40 adam
45 * New function egw_prog that returns name of shell.
47 * Revision 1.12 1996/03/07 12:45:34 adam
48 * New Tcl calls egw_enc/egw_dec to encode/decode binary URL info.
50 * Revision 1.11 1996/01/24 08:26:56 adam
51 * All tcl commands prefixed with egw_ (except the html command).
53 * Revision 1.10 1995/11/08 16:14:35 adam
54 * Many improvements and bug fixes.
55 * First version that ran on dtbsun.
57 * Revision 1.9 1995/11/07 14:57:00 adam
58 * Work on search in multiple targets.
59 * New wtcl command: wlog.
60 * Optional timeout parameter to zwait.
62 * Revision 1.8 1995/11/06 17:44:23 adam
63 * State reestablised when shell restarts. History of previous
66 * Revision 1.7 1995/10/31 16:56:25 adam
67 * Record presentation.
69 * Revision 1.6 1995/10/31 10:03:54 adam
71 * New command implemented - aborts script.
73 * Revision 1.5 1995/10/30 17:35:18 adam
74 * New function zwait that waits for a variable change - due to i/o events
75 * that invoke callback routines.
77 * Revision 1.4 1995/10/27 17:30:16 adam
78 * First search request/response that works.
80 * Revision 1.3 1995/10/27 15:12:14 adam
81 * IrTcl incorporated in the gateway.
82 * Better separation of script types.
83 * Z39.50 gateway scripts entered.
85 * Revision 1.2 1995/10/23 16:55:43 adam
86 * A lot of changes - really.
88 * Revision 1.1 1995/10/20 14:02:42 adam
89 * First version of WWW gateway with embedded Tcl.
101 static void *do_create (WCLIENT wcl, void *args);
102 static int do_exec (const char *fname, char *parms, void *mydata);
103 static int do_load (char *parms, void *mydata);
104 static int do_save (char *parms, void *mydata);
106 static struct w_interp_type w_interp_t = {
114 W_Interp_Type w_interp_tcl = &w_interp_t;
117 static char *mod = "wtcl";
128 Tcl_Interp *w_interp_tcl_get (W_Interp w_interp)
132 if (strcmp (w_interp->ctrl->name, "tcl"))
134 gw_log (GW_LOG_FATAL, mod, "Internal failure");
137 p = (struct tcl_info*) w_interp->mydata;
141 static int proc_wabort_invoke (ClientData clientData, Tcl_Interp *interp,
142 int argc, char **argv)
144 struct tcl_info *p = (struct tcl_info*) clientData;
148 Tcl_AppendResult (interp, argv[1], NULL);
152 static int proc_wflush_invoke (ClientData clientData, Tcl_Interp *interp,
153 int argc, char **argv)
155 struct tcl_info *p = (struct tcl_info*) clientData;
161 static int proc_html_invoke (ClientData clientData, Tcl_Interp *interp,
162 int argc, char **argv)
164 struct tcl_info *p = (struct tcl_info*) clientData;
167 for (i = 1; i<argc; i++)
168 wo_write (p->wcl, argv[i], strlen(argv[i]));
172 static int proc_wform_invoke (ClientData clientData, Tcl_Interp *interp,
173 int argc, char **argv)
175 struct tcl_info *p = (struct tcl_info*) clientData;
179 for (i = 0; *p->wcl->wf_data[i].name; i++)
180 if (!strcmp (argv[1], p->wcl->wf_data[i].name) &&
181 *p->wcl->wf_data[i].value)
182 Tcl_AppendElement (p->interp, p->wcl->wf_data[i].value);
185 for (i = 0; *p->wcl->wf_data[i].name; i++)
187 Tcl_AppendResult (p->interp, "{ ", NULL);
188 Tcl_AppendElement (p->interp, p->wcl->wf_data[i].name);
189 Tcl_AppendElement (p->interp, p->wcl->wf_data[i].value);
190 Tcl_AppendResult (p->interp, " }\n", NULL);
195 static int proc_wlog_invoke (ClientData clientData, Tcl_Interp *interp,
196 int argc, char **argv)
202 if (!strcmp (argv[1], "debug"))
204 else if (!strcmp (argv[1], "fatal"))
206 else if (!strcmp (argv[1], "warn"))
208 else if (!strcmp (argv[1], "acct"))
215 gw_log (mask, mod, "%s", argv[2]);
218 gw_log (mask, mod, "%s %s", argv[2], argv[3]);
221 gw_log (mask, mod, "%s %s %s", argv[2], argv[3], argv[4]);
224 gw_log (mask, mod, "%s %s %s %s", argv[2], argv[3], argv[4], argv[5]);
230 static int proc_enc (ClientData clientData, Tcl_Interp *interp,
231 int argc, char **argv)
239 for (i = 1; i<argc; i++)
241 const char *cp = argv[i];
244 if (*cp <= ' ' || *cp >= 127 || *cp == '/' || *cp == ' ' ||
245 *cp == '&' || *cp == ':' || *cp == '%')
247 sprintf (buf1+1, "%02X", *cp);
248 Tcl_AppendResult (interp, buf1, NULL);
253 Tcl_AppendResult (interp, buf2, NULL);
261 static int proc_dec (ClientData clientData, Tcl_Interp *interp,
262 int argc, char **argv)
269 for (i = 1; i<argc; i++)
271 const char *cp = argv[i];
274 if (*cp == '%' && cp[1] && cp[2])
277 val = cp[1] - 'A'+10;
283 val = val*16 + (cp[2] - 'A'+10);
285 val = val*16 + (cp[2] - '0');
291 Tcl_AppendResult (interp, buf, NULL);
297 static int proc_prog (ClientData clientData, Tcl_Interp *interp,
298 int argc, char **argv)
300 struct tcl_info *p = (struct tcl_info*) clientData;
302 Tcl_AppendResult (p->interp, p->wcl->prog, NULL);
306 int Tcl_AppInit (Tcl_Interp *interp)
308 if (Tcl_Init (interp) == TCL_ERROR)
313 static void *do_create (WCLIENT wcl, void *args)
318 if (!(p = malloc (sizeof(*p))))
320 gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: tcl_info");
323 if (!(p->interp = Tcl_CreateInterp ()))
325 gw_log (GW_LOG_FATAL, mod, "Cannot make Tcl_Interp");
330 if (!(p->fbuf = malloc (p->fbuf_size)))
332 gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: tcl_info fbuf");
335 Tcl_AppInit (p->interp);
336 Tcl_CreateCommand (p->interp, "html", proc_html_invoke, p, NULL);
337 Tcl_CreateCommand (p->interp, "egw_form", proc_wform_invoke, p, NULL);
338 Tcl_CreateCommand (p->interp, "egw_abort", proc_wabort_invoke, p, NULL);
339 Tcl_CreateCommand (p->interp, "egw_flush", proc_wflush_invoke, p, NULL);
340 Tcl_CreateCommand (p->interp, "egw_log", proc_wlog_invoke, p, NULL);
341 Tcl_CreateCommand (p->interp, "egw_enc", proc_enc, p, NULL);
342 Tcl_CreateCommand (p->interp, "egw_dec", proc_dec, p, NULL);
343 Tcl_CreateCommand (p->interp, "egw_prog", proc_prog, p, NULL);
344 sprintf (tmp_str, "%d", wcl->id);
345 Tcl_SetVar (p->interp, "sessionId", tmp_str, TCL_GLOBAL_ONLY);
349 static void report_error (struct tcl_info *p, int errorLine,
350 const char *pre, const char *msg)
354 gw_log (GW_LOG_WARN, mod, "%s %d %s", pre, errorLine, msg);
355 wo_printf (p->wcl, "\n<br><hr>\n<strong>"
356 "%s %d</strong><br>\n", pre, errorLine);
357 wo_printf (p->wcl, "<xmp>\n%s</xmp>\n<hr>\n", msg);
360 static int tcl_exec (const char *fname, char *parms,
361 struct tcl_info *p, FILE *inf, int *lineno)
363 int c, escape = 0, level = 0;
369 if (fbuf_ptr == p->fbuf_size-1)
373 if (!(newb = malloc (p->fbuf_size += 16384)))
375 gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: fbuf");
378 memcpy (newb, p->fbuf, fbuf_ptr);
385 report_error (p, *lineno, "Error in Tcl script starting at line",
386 "Unexpected EOF (missing right brace)");
391 else if (c == '{' && !escape)
396 else if (c == '}' && !escape)
408 p->fbuf[fbuf_ptr++] = c;
410 p->fbuf[fbuf_ptr] = '\0';
412 r = Tcl_Eval (p->interp, p->fbuf);
414 report_error (p, p->interp->errorLine + *lineno - 1,
415 "Error in Tcl script in line",
416 Tcl_GetVar (p->interp, "errorInfo", 0));
417 (*lineno) += local_line;
423 static int do_exec (const char *fname, char *parms, void *mydata)
425 struct tcl_info *p = mydata;
428 FILE *inf = fopen (fname, "r");
430 gw_log (GW_LOG_DEBUG, mod, "Executing %s", fname);
433 gw_log (GW_LOG_WARN|GW_LOG_ERRNO, mod, "open %s", fname);
436 Tcl_SetVar (p->interp, "sessionParms", parms, TCL_GLOBAL_ONLY);
437 while ((c = getc(inf)) != EOF)
447 int r = tcl_exec (fname, parms, p, inf, &lineno);
453 else if (r == TCL_ERROR)
474 static int do_load (char *parms, void *mydata)
476 struct tcl_info *p = mydata;
480 sprintf (fname, "tcl.state.%d", p->wcl->id);
481 r = Tcl_EvalFile (p->interp, fname);
483 gw_log (GW_LOG_WARN, mod, "Cannot load Tcl state" );
487 static int do_save (char *parms, void *mydata)
489 struct tcl_info *p = mydata;
490 struct Tcl_CmdInfo cinfo;
492 if (Tcl_GetCommandInfo(p->interp, "saveState", &cinfo))
496 gw_log (GW_LOG_DEBUG, mod, "saveState");
497 r = Tcl_Eval (p->interp, "saveState\n");
499 report_error (p, p->interp->errorLine,
500 "Error in Tcl saveState in line",
501 Tcl_GetVar (p->interp, "errorInfo", 0));