source: readconfig.c @ b2b0773

barnowl_perlaimdebianowlrelease-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since b2b0773 was d559df9, checked in by James M. Kretchmar <kretch@mit.edu>, 18 years ago
AIM messages now go through format_msg() in .owlconf if it exists. Additional Perl variables will need to be added so users can distinguish AIM login/logout messages from normal messages.
  • Property mode set to 100644
File size: 6.6 KB
Line 
1#include <stdio.h>
2#include <stdlib.h>
3#include <string.h>
4#include <sys/types.h>
5#include <sys/stat.h>
6#include <errno.h>
7#include "owl.h"
8#include <perl.h>
9#include "XSUB.h"
10
11static const char fileIdent[] = "$Id$";
12
13extern XS(boot_owl);
14
15static void owl_perl_xs_init(pTHX) {
16  char *file = __FILE__;
17  dXSUB_SYS;
18  {
19    newXS("owl::bootstrap", boot_owl, file);
20  }
21}
22
23
24int owl_readconfig(char *file) {
25  int ret;
26  PerlInterpreter *p;
27  char *codebuff, filename[1024];
28  char *embedding[5];
29  struct stat statbuff;
30
31  if (file==NULL) {
32    sprintf(filename, "%s/%s", getenv("HOME"), ".owlconf");
33  } else {
34    strcpy(filename, file);
35  }
36  embedding[0]="";
37  embedding[1]=filename;
38  embedding[2]=0;
39
40  /* create and initialize interpreter */
41  p=perl_alloc();
42  owl_global_set_perlinterp(&g, (void*)p);
43  perl_construct(p);
44
45  /* start by assuming no config */
46  owl_global_set_no_have_config(&g);
47
48  ret=stat(filename, &statbuff);
49  if (ret) {
50    return(0);
51  }
52
53  /* This is the CMU code for reading a site owlconf.  Not sure if I
54     want it yet */
55  /*
56  ret=stat(filename, &statbuff);
57  if (ret) {
58    sprintf(filename, "%s/%s", DATADIR, "owl/owlconf");
59    ret=stat(filename, &statbuff);
60    if (ret) {
61      return(0);
62    }
63  }
64  */
65
66  ret=perl_parse(p, owl_perl_xs_init, 2, embedding, NULL);
67  if (ret) return(-1);
68  ret=perl_run(p);
69  if (ret) return(-1);
70
71  /* if we get this far, we have a good config file */
72  owl_global_set_have_config(&g);
73
74  /* create variables */
75  perl_get_sv("owl::id", TRUE);
76  perl_get_sv("owl::type", TRUE);
77  perl_get_sv("owl::direction", TRUE);
78  perl_get_sv("owl::class", TRUE);
79  perl_get_sv("owl::instance", TRUE);
80  perl_get_sv("owl::recipient", TRUE);
81  perl_get_sv("owl::sender", TRUE);
82  perl_get_sv("owl::realm", TRUE);
83  perl_get_sv("owl::opcode", TRUE);
84  perl_get_sv("owl::zsig", TRUE);
85  perl_get_sv("owl::msg", TRUE);
86  perl_get_sv("owl::time", TRUE);
87  perl_get_sv("owl::host", TRUE);
88  perl_get_av("owl::fields", TRUE);
89 
90  /* perl bootstrapping code */
91  codebuff = 
92    "                                             \n"
93    "package owl;                                 \n"
94    "                                             \n"
95    "bootstrap owl 0.01;                          \n"
96    "                                             \n"
97    "package main;                                \n";
98
99  perl_eval_pv(codebuff, FALSE);
100
101
102  /* check if we have the formatting function */
103  if (perl_get_cv("owl::format_msg", FALSE)) {
104    owl_global_set_config_format(&g, 1);
105  }
106  return(0);
107}
108
109
110/* caller is responsible for freeing returned string */
111char *owl_config_execute(char *line) {
112  STRLEN len;
113  SV *response;
114  char *out, *preout;
115
116  if (!owl_global_have_config(&g)) return NULL;
117
118  /* execute the subroutine */
119  response = perl_eval_pv(line, FALSE);
120
121  preout=SvPV(response, len);
122  /* leave enough space in case we have to add a newline */
123  out = owl_malloc(strlen(preout)+2);
124  strncpy(out, preout, len);
125  out[len] = '\0';
126  if (!strlen(out) || out[strlen(out)-1]!='\n') {
127    strcat(out, "\n");
128  }
129
130  return(out);
131}
132
133char *owl_config_getmsg(owl_message *m, int mode) {
134  /* if mode==1 we are doing message formatting.  The returned
135   * formatted message needs to be freed by the caller.
136   *
137   * if mode==0 we are just doing the message-has-been-received
138   * thing.
139  */
140
141  int i, j, len;
142  char *ptr, *ptr2;
143
144  if (!owl_global_have_config(&g)) return("");
145
146  /* set owl::msg */
147  ptr=owl_message_get_body(m);
148  len=strlen(ptr);
149  ptr2=owl_malloc(len+20);
150  memcpy(ptr2, ptr, len);
151  ptr2[len]='\0';
152  if (ptr2[len-1]!='\n') {
153    strcat(ptr2, "\n");
154  }
155  sv_setpv(perl_get_sv("owl::msg", TRUE), ptr2);
156  owl_free(ptr2);
157
158  /* set owl::zsig */
159  ptr=owl_message_get_zsig(m);
160  len=strlen(ptr);
161  if (len>0) {
162    ptr2=owl_malloc(len+20);
163    memcpy(ptr2, ptr, len);
164    ptr2[len]='\0';
165    if (ptr2[len-1]=='\n') {  /* do we really need this? */
166      ptr2[len-1]='\0';
167    }
168    sv_setpv(perl_get_sv("owl::zsig", TRUE), ptr2);
169    owl_free(ptr2);
170  } else {
171    sv_setpv(perl_get_sv("owl::zsig", TRUE), "");
172  }
173
174  /* set owl::type */
175  sv_setpv(perl_get_sv("owl::type", TRUE), owl_message_type_to_string(m));
176
177  /* set owl::direction */
178  if (owl_message_is_direction_in(m)) {
179    sv_setpv(perl_get_sv("owl::direction", TRUE), "in");
180  } else if (owl_message_is_direction_out(m)) {
181    sv_setpv(perl_get_sv("owl::direction", TRUE), "out");
182  } else if (owl_message_is_direction_none(m)) {
183    sv_setpv(perl_get_sv("owl::direction", TRUE), "none");
184  } else {
185    sv_setpv(perl_get_sv("owl::direction", TRUE), "unknown");
186  }
187
188  /* set everything else */
189  sv_setpv(perl_get_sv("owl::class", TRUE), owl_message_get_class(m));
190  sv_setpv(perl_get_sv("owl::instance", TRUE), owl_message_get_instance(m));
191  sv_setpv(perl_get_sv("owl::sender", TRUE), owl_message_get_sender(m));
192  sv_setpv(perl_get_sv("owl::realm", TRUE), owl_message_get_realm(m));
193  sv_setpv(perl_get_sv("owl::recipient", TRUE), owl_message_get_recipient(m));
194  sv_setpv(perl_get_sv("owl::opcode", TRUE), owl_message_get_opcode(m));
195  sv_setpv(perl_get_sv("owl::time", TRUE), owl_message_get_timestr(m));
196  sv_setpv(perl_get_sv("owl::host", TRUE), owl_message_get_hostname(m));
197  sv_setiv(perl_get_sv("owl::id", TRUE), owl_message_get_id(m));
198
199  /* free old @fields ? */
200  /* I don't think I need to do this, but ask marc to make sure */
201  /*
202  j=av_len(perl_get_av("fields", TRUE));
203  for (i=0; i<j; i++) {
204    tmpsv=av_pop(perl_get_av("fields", TRUE));
205    SvREFCNT_dec(tmpsv);
206  }
207  */
208
209  /* set owl::fields */
210  if (owl_message_is_type_zephyr(m) && owl_message_is_direction_in(m)) {
211    av_clear(perl_get_av("owl::fields", TRUE));
212    j=owl_zephyr_get_num_fields(owl_message_get_notice(m));
213    for (i=0; i<j; i++) {
214      ptr=owl_zephyr_get_field(owl_message_get_notice(m), i+1, &len);
215      ptr2=owl_malloc(len+10);
216      memcpy(ptr2, ptr, len);
217      ptr2[len]='\0';
218      av_push(perl_get_av("owl::fields", TRUE), newSVpvn(ptr2, len));
219      owl_free(ptr2);
220    }
221  }
222
223  /* for backwards compatibilty, because I'm an idiot */
224  if (owl_message_is_type_zephyr(m) && owl_message_is_direction_in(m)) {
225    av_clear(perl_get_av("fields", TRUE));
226    j=owl_zephyr_get_num_fields(owl_message_get_notice(m));
227    for (i=0; i<j; i++) {
228      ptr=owl_zephyr_get_field(owl_message_get_notice(m), i+1, &len);
229      ptr2=owl_malloc(len+10);
230      memcpy(ptr2, ptr, len);
231      ptr2[len]='\0';
232      av_push(perl_get_av("fields", TRUE), newSVpvn(ptr2, len));
233      owl_free(ptr2);
234    }
235  }
236
237  /* run the procedure corresponding to the mode */
238  if (mode==1) {
239    return(owl_config_execute("owl::format_msg();"));
240  } else {
241    ptr=owl_config_execute("owl::receive_msg();");
242    if (ptr) owl_free(ptr);
243    return(NULL);
244  }
245}
246
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