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 1.2 1995/10/23 16:55:43 adam
45 * A lot of changes - really.
47 * Revision 1.1 1995/10/20 14:02:42 adam
48 * First version of WWW gateway with embedded Tcl.
63 static void *do_create (WCLIENT wcl, void *args);
64 static int do_exec (const char *fname, char *parms, void *mydata);
66 static struct w_interp_type w_interp_t = {
72 W_Interp_Type w_interp_tcl = &w_interp_t;
75 static char *mod = "wtcl";
85 static int proc_html_invoke (ClientData clientData, Tcl_Interp *interp,
86 int argc, char **argv)
88 struct tcl_info *p = (struct tcl_info*) clientData;
91 gw_log (GW_LOG_DEBUG, mod, "proc html");
92 for (i = 1; i<argc; i++)
93 wo_puts (p->wcl, argv[i]);
97 static int proc_htmlr_invoke (ClientData clientData, Tcl_Interp *interp,
98 int argc, char **argv)
100 struct tcl_info *p = (struct tcl_info*) clientData;
103 r = proc_html_invoke (clientData, interp, argc, argv);
104 wo_putc (p->wcl, '\n');
108 static int proc_form_invoke (ClientData clientData, Tcl_Interp *interp,
109 int argc, char **argv)
111 struct tcl_info *p = (struct tcl_info*) clientData;
115 Tcl_AppendResult (p->interp, wgetval (p->wcl, argv[1]), NULL);
118 for (i = 0; *p->wcl->wf_data[i].name; i++)
120 Tcl_AppendResult (p->interp, "{ ", NULL);
121 Tcl_AppendElement (p->interp, p->wcl->wf_data[i].name);
122 Tcl_AppendElement (p->interp, p->wcl->wf_data[i].value);
123 Tcl_AppendResult (p->interp, " }\n", NULL);
128 static void *do_create (WCLIENT wcl, void *args)
133 if (!(p = malloc (sizeof(*p))))
135 gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: tcl_info");
138 if (!(p->interp = Tcl_CreateInterp ()))
140 gw_log (GW_LOG_FATAL, mod, "Cannot make Tcl_Interp");
145 if (!(p->fbuf = malloc (p->fbuf_size)))
147 gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: tcl_info fbuf");
150 Tcl_CreateCommand (p->interp, "html", proc_html_invoke, p, NULL);
151 Tcl_CreateCommand (p->interp, "htmlr", proc_htmlr_invoke, p, NULL);
152 Tcl_CreateCommand (p->interp, "form", proc_form_invoke, p, NULL);
153 sprintf (tmp_str, "%d", wcl->id);
154 Tcl_SetVar (p->interp, "sessionId", tmp_str, TCL_GLOBAL_ONLY);
158 static int tcl_exec (const char *fname, char *parms,
159 struct tcl_info *p, FILE *inf, int *lineno)
161 int c, escape = 0, level = 0;
165 Tcl_SetVar (p->interp, "sessionParms", p->wcl->wf_parms, TCL_GLOBAL_ONLY);
168 if (fbuf_ptr == p->fbuf_size-1)
172 if (!(newb = malloc (p->fbuf_size += 16384)))
174 gw_log (GW_LOG_FATAL|GW_LOG_ERRNO, mod, "malloc: fbuf");
177 memcpy (newb, p->fbuf, fbuf_ptr);
184 gw_log (GW_LOG_WARN, mod, "Unexpected EOF: unbalanced braces");
189 else if (c == '{' && !escape)
194 else if (c == '}' && !escape)
206 p->fbuf[fbuf_ptr++] = c;
208 p->fbuf[fbuf_ptr] = '\0';
209 r = Tcl_Eval (p->interp, p->fbuf);
212 gw_log (GW_LOG_WARN, mod, "Error in Tcl script starting on line %d",
215 (*lineno) += local_line;
219 static int do_exec (const char *fname, char *parms,
222 struct tcl_info *p = mydata;
225 FILE *inf = fopen (fname, "r");
227 gw_log (GW_LOG_DEBUG, mod, "Executing %s", fname);
230 gw_log (GW_LOG_WARN|GW_LOG_ERRNO, mod, "open %s", fname);
233 while ((c = getc(inf)) != EOF)
243 if (tcl_exec (fname, parms, p, inf, &lineno))