source: perlconfig.c @ a1c2f06

barnowl_perlaimdebianrelease-1.10release-1.4release-1.5release-1.6release-1.7release-1.8release-1.9
Last change on this file since a1c2f06 was db0ac7e, checked in by Alejandro R. Sedeño <asedeno@mit.edu>, 17 years ago
Merged revisions 983-1032 via svnmerge from file:///afs/sipb.mit.edu/project/barnowl/src/svn/trunk ........ r985 | nelhage | 2008-03-11 12:38:20 -0400 (Tue, 11 Mar 2008) | 2 lines Generate less ugly error spew if a module fails to load ........ r986 | geofft | 2008-03-13 15:56:20 -0400 (Thu, 13 Mar 2008) | 1 line Added :webzephyr command with keybinding W. ........ r987 | asedeno | 2008-03-18 23:57:24 -0400 (Tue, 18 Mar 2008) | 2 lines Fix a race condition in which zephyrs received during init are not noticed until the next zephyr after entering the mainloop. ........ r988 | geofft | 2008-03-19 15:46:43 -0400 (Wed, 19 Mar 2008) | 6 lines IRC: explicitly include the network (-a $alias) in reply commands. This may be unnecessary because :irc-msg looks at getcurmsg() if it cannot automatically determine the network. ........ r989 | geofft | 2008-03-21 14:47:51 -0400 (Fri, 21 Mar 2008) | 1 line syntax error. ........ r990 | nelhage | 2008-03-26 02:24:26 -0400 (Wed, 26 Mar 2008) | 2 lines Fix sending jabbers to JIDs beginning with `+' ........ r994 | nelhage | 2008-03-29 17:02:05 -0400 (Sat, 29 Mar 2008) | 3 lines Compile zcrypt.c with -w so I don't get all these warnings in my compile output whenever I change any headers ........ r998 | geofft | 2008-03-31 01:59:47 -0400 (Mon, 31 Mar 2008) | 1 line Implement /me for outgoing IRC messages ........ r999 | geofft | 2008-03-31 09:58:56 -0400 (Mon, 31 Mar 2008) | 1 line I think this fixes the resizing bug. ........ r1000 | nelhage | 2008-03-31 11:29:29 -0400 (Mon, 31 Mar 2008) | 2 lines Make `svkversion' handle exported trees better ........ r1001 | nelhage | 2008-03-31 11:52:39 -0400 (Mon, 31 Mar 2008) | 2 lines Add a makefile rule to support emacs flymake-mode ........ r1015 | nelhage | 2008-04-04 14:58:45 -0400 (Fri, 04 Apr 2008) | 3 lines Bind the combinations the iPhone sends for arrow keys [probably other terminals, too] ........ r1018 | shadow | 2008-04-08 13:57:49 -0400 (Tue, 08 Apr 2008) | 2 lines avoid null pointer dereference if msg is NULL (or a 0 length is claimed) ........ r1019 | nelhage | 2008-04-09 18:08:26 -0400 (Wed, 09 Apr 2008) | 2 lines Fix some stupid typos ........ r1020 | chmrr | 2008-04-09 18:16:02 -0400 (Wed, 09 Apr 2008) | 3 lines r29300@kohr-ah: chmrr | 2008-04-09 18:14:37 -0400 * It's apparently a popular typo ........ r1022 | asedeno | 2008-04-16 17:05:36 -0400 (Wed, 16 Apr 2008) | 2 lines Jabber reply bugfix. Reported by several people, resolved by arolfe. ........ r1023 | nelhage | 2008-04-28 23:33:03 -0400 (Mon, 28 Apr 2008) | 3 lines Initialized merge tracking via "svnmerge" with revisions "735" from svn+ssh://lunatique.mit.edu/mit/barnowl/src/svn/branches/barnowl_unicode ........ r1024 | nelhage | 2008-04-28 23:33:12 -0400 (Mon, 28 Apr 2008) | 3 lines Initialized merge tracking via "svnmerge" with revisions "735" from svn+ssh://lunatique.mit.edu/mit/barnowl/src/svn/branches/barnowl_sqlite ........ r1025 | nelhage | 2008-04-29 01:21:12 -0400 (Tue, 29 Apr 2008) | 2 lines Clone owl_perl from the sqlite branch because I'm about to make use of it. ........ r1026 | nelhage | 2008-04-29 01:21:13 -0400 (Tue, 29 Apr 2008) | 4 lines Initial step of moving styles from the current mishmash of different options to a unified object interface. No backwards-compatibility support yet. ........ r1027 | nelhage | 2008-04-29 01:21:15 -0400 (Tue, 29 Apr 2008) | 2 lines Implement back-compat with old-style owl::format_msg() styles ........ r1028 | nelhage | 2008-04-29 01:21:16 -0400 (Tue, 29 Apr 2008) | 2 lines Remove nearly all references to the "basic" style. ........ r1029 | nelhage | 2008-04-29 01:21:17 -0400 (Tue, 29 Apr 2008) | 2 lines Support the `style' command again. Note that it is deprecated. ........ r1031 | nelhage | 2008-04-30 13:29:45 -0400 (Wed, 30 Apr 2008) | 2 lines Refactor default style code somewhat to be more easily extensible ........
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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#define OWL_PERL
8#include "owl.h"
9
10static const char fileIdent[] = "$Id$";
11
12extern char *owl_perlwrap_codebuff;
13
14extern XS(boot_BarnOwl);
15extern XS(boot_DynaLoader);
16/* extern XS(boot_DBI); */
17
18static void owl_perl_xs_init(pTHX)
19{
20  char *file = __FILE__;
21  dXSUB_SYS;
22  {
23    newXS("BarnOwl::bootstrap", boot_BarnOwl, file);
24    newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
25  }
26}
27
28SV *owl_perlconfig_message2hashref(owl_message *m)
29{
30  HV *h, *stash;
31  SV *hr;
32  char *ptr, *blessas, *type;
33  int i, j;
34  owl_pair *pair;
35  owl_filter *wrap;
36
37  if (!m) return &PL_sv_undef;
38  wrap = owl_global_get_filter(&g, "wordwrap");
39  if(!wrap) {
40      owl_function_error("wrap filter is not defined");
41      return &PL_sv_undef;
42  }
43
44  h = newHV();
45
46#define MSG2H(h,field) hv_store(h, #field, strlen(#field), \
47                              newSVpv(owl_message_get_##field(m),0), 0)
48
49  if (owl_message_is_type_zephyr(m)
50      && owl_message_is_direction_in(m)) {
51    /* Handle zephyr-specific fields... */
52    AV *av_zfields;
53
54    av_zfields = newAV();
55    j=owl_zephyr_get_num_fields(owl_message_get_notice(m));
56    for (i=0; i<j; i++) {
57      ptr=owl_zephyr_get_field_as_utf8(owl_message_get_notice(m), i+1);
58      av_push(av_zfields, newSVpvn(ptr, strlen(ptr)));
59      owl_free(ptr);
60    }
61    hv_store(h, "fields", strlen("fields"), newRV_noinc((SV*)av_zfields), 0);
62
63    hv_store(h, "auth", strlen("auth"), 
64             newSVpv(owl_zephyr_get_authstr(owl_message_get_notice(m)),0),0);
65  }
66
67  j=owl_list_get_size(&(m->attributes));
68  for(i=0; i<j; i++) {
69    pair=owl_list_get_element(&(m->attributes), i);
70    hv_store(h, owl_pair_get_key(pair), strlen(owl_pair_get_key(pair)),
71             newSVpv(owl_pair_get_value(pair),0),0);
72  }
73 
74  MSG2H(h, type);
75  MSG2H(h, direction);
76  MSG2H(h, class);
77  MSG2H(h, instance);
78  MSG2H(h, sender);
79  MSG2H(h, realm);
80  MSG2H(h, recipient);
81  MSG2H(h, opcode);
82  MSG2H(h, hostname);
83  MSG2H(h, body);
84  MSG2H(h, login);
85  MSG2H(h, zsig);
86  MSG2H(h, zwriteline);
87  if (owl_message_get_header(m)) {
88    MSG2H(h, header); 
89  }
90  hv_store(h, "time", strlen("time"), newSVpv(owl_message_get_timestr(m),0),0);
91  hv_store(h, "id", strlen("id"), newSViv(owl_message_get_id(m)),0);
92  hv_store(h, "deleted", strlen("deleted"), newSViv(owl_message_is_delete(m)),0);
93  hv_store(h, "private", strlen("private"), newSViv(owl_message_is_private(m)),0);
94  hv_store(h, "should_wordwrap",
95           strlen("should_wordwrap"), newSViv(
96                                              owl_filter_message_match(wrap, m)),0);
97
98  type = owl_message_get_type(m);
99  if(!type || !*type) type = "generic";
100  type = owl_strdup(type);
101  type[0] = toupper(type[0]);
102  blessas = owl_sprintf("BarnOwl::Message::%s", type);
103
104  hr = sv_2mortal(newRV_noinc((SV*)h));
105  stash =  gv_stashpv(blessas,0);
106  if(!stash) {
107    owl_function_error("No such class: %s for message type %s", blessas, owl_message_get_type(m));
108    stash = gv_stashpv("BarnOwl::Message", 1);
109  }
110  hr = sv_bless(hr,stash);
111  owl_free(type);
112  owl_free(blessas);
113  return hr;
114}
115
116SV *owl_perlconfig_curmessage2hashref(void) /*noproto*/
117{
118  int curmsg;
119  owl_view *v;
120  v=owl_global_get_current_view(&g);
121  if (owl_view_get_size(v) < 1) {
122    return &PL_sv_undef;
123  }
124  curmsg=owl_global_get_curmsg(&g);
125  return owl_perlconfig_message2hashref(owl_view_get_element(v, curmsg));
126}
127
128/* XXX TODO: Messages should round-trip properly between
129   message2hashref and hashref2message. Currently we lose
130   zephyr-specific properties stored in the ZNotice_t
131 */
132owl_message * owl_perlconfig_hashref2message(SV *msg)
133{
134  owl_message * m;
135  HE * ent;
136  I32 count, len;
137  char *key,*val;
138  HV * hash;
139  struct tm tm;
140
141  hash = (HV*)SvRV(msg);
142
143  m = owl_malloc(sizeof(owl_message));
144  owl_message_init(m);
145
146  count = hv_iterinit(hash);
147  while((ent = hv_iternext(hash))) {
148    key = hv_iterkey(ent, &len);
149    val = SvPV_nolen(hv_iterval(hash, ent));
150    if(!strcmp(key, "type")) {
151      owl_message_set_type(m, val);
152    } else if(!strcmp(key, "direction")) {
153      owl_message_set_direction(m, owl_message_parse_direction(val));
154    } else if(!strcmp(key, "private")) {
155      SV * v = hv_iterval(hash, ent);
156      if(SvTRUE(v)) {
157        owl_message_set_isprivate(m);
158      }
159    } else if (!strcmp(key, "hostname")) {
160      owl_message_set_hostname(m, val);
161    } else if (!strcmp(key, "zwriteline")) {
162      owl_message_set_zwriteline(m, val);
163    } else if (!strcmp(key, "time")) {
164      m->timestr = owl_strdup(val);
165      strptime(val, "%a %b %d %T %Y", &tm);
166      m->time = mktime(&tm);
167    } else {
168      owl_message_set_attribute(m, key, val);
169    }
170  }
171  if(owl_message_is_type_admin(m)) {
172    if(!owl_message_get_attribute_value(m, "adminheader"))
173      owl_message_set_attribute(m, "adminheader", "");
174  }
175  return m;
176}
177
178/* Calls in a scalar context, passing it a hash reference.
179   If return value is non-null, caller must free. */
180char *owl_perlconfig_call_with_message(char *subname, owl_message *m)
181{
182  dSP ;
183  int count, len;
184  SV *msgref, *srv;
185  char *out, *preout;
186 
187  ENTER ;
188  SAVETMPS;
189 
190  PUSHMARK(SP) ;
191  msgref = owl_perlconfig_message2hashref(m);
192  XPUSHs(msgref);
193  PUTBACK ;
194 
195  count = call_pv(subname, G_SCALAR|G_EVAL|G_KEEPERR);
196 
197  SPAGAIN ;
198
199  if (SvTRUE(ERRSV)) {
200    STRLEN n_a;
201    owl_function_error("Perl Error: '%s'", SvPV(ERRSV, n_a));
202    /* and clear the error */
203    sv_setsv (ERRSV, &PL_sv_undef);
204  }
205
206  if (count != 1) {
207    fprintf(stderr, "bad perl!  no biscuit!  returned wrong count!\n");
208    abort();
209  }
210
211  srv = POPs;
212
213  if (srv) {
214    preout=SvPV(srv, len);
215    out = owl_malloc(strlen(preout)+1);
216    strncpy(out, preout, len);
217    out[len] = '\0';
218  } else {
219    out = NULL;
220  }
221 
222  PUTBACK ;
223  FREETMPS ;
224  LEAVE ;
225
226  return out;
227}
228
229
230/* Calls a method on a perl object representing a message.
231   If the return value is non-null, the caller must free it.
232 */
233char * owl_perlconfig_message_call_method(owl_message *m, char *method, int argc, char ** argv)
234{
235  dSP;
236  unsigned int count, len, i;
237  SV *msgref, *srv;
238  char *out, *preout;
239
240  msgref = owl_perlconfig_message2hashref(m);
241
242  ENTER;
243  SAVETMPS;
244
245  PUSHMARK(SP);
246  XPUSHs(msgref);
247  for(i=0;i<argc;i++) {
248    XPUSHs(sv_2mortal(newSVpv(argv[i], 0)));
249  }
250  PUTBACK;
251
252  count = call_method(method, G_SCALAR|G_KEEPERR|G_EVAL);
253
254  SPAGAIN;
255
256  if(count != 1) {
257    fprintf(stderr, "perl returned wrong count %d\n", count);
258    abort();
259  }
260
261  if (SvTRUE(ERRSV)) {
262    STRLEN n_a;
263    owl_function_error("Error: '%s'", SvPV(ERRSV, n_a));
264    /* and clear the error */
265    sv_setsv (ERRSV, &PL_sv_undef);
266  }
267
268  srv = POPs;
269
270  if (srv) {
271    preout=SvPV(srv, len);
272    out = owl_malloc(strlen(preout)+1);
273    strncpy(out, preout, len);
274    out[len] = '\0';
275  } else {
276    out = NULL;
277  }
278
279  PUTBACK;
280  FREETMPS;
281  LEAVE;
282
283  return out;
284}
285
286
287char *owl_perlconfig_initperl(char * file)
288{
289  int ret;
290  PerlInterpreter *p;
291  char *err;
292  char *args[4] = {"", "-e", "0;", NULL};
293
294  /* create and initialize interpreter */
295  p=perl_alloc();
296  owl_global_set_perlinterp(&g, (void*)p);
297  perl_construct(p);
298
299  owl_global_set_no_have_config(&g);
300
301
302  ret=perl_parse(p, owl_perl_xs_init, 2, args, NULL);
303  if (ret || SvTRUE(ERRSV)) {
304    STRLEN n_a;
305    err=owl_strdup(SvPV(ERRSV, n_a));
306    sv_setsv(ERRSV, &PL_sv_undef);     /* and clear the error */
307    return(err);
308  }
309
310  ret=perl_run(p);
311  if (ret || SvTRUE(ERRSV)) {
312    STRLEN n_a;
313    err=owl_strdup(SvPV(ERRSV, n_a));
314    sv_setsv(ERRSV, &PL_sv_undef);     /* and clear the error */
315    return(err);
316  }
317
318  owl_global_set_have_config(&g);
319
320  /* create legacy variables */
321  perl_get_sv("BarnOwl::id", TRUE);
322  perl_get_sv("BarnOwl::class", TRUE);
323  perl_get_sv("BarnOwl::instance", TRUE);
324  perl_get_sv("BarnOwl::recipient", TRUE);
325  perl_get_sv("BarnOwl::sender", TRUE);
326  perl_get_sv("BarnOwl::realm", TRUE);
327  perl_get_sv("BarnOwl::opcode", TRUE);
328  perl_get_sv("BarnOwl::zsig", TRUE);
329  perl_get_sv("BarnOwl::msg", TRUE);
330  perl_get_sv("BarnOwl::time", TRUE);
331  perl_get_sv("BarnOwl::host", TRUE);
332  perl_get_av("BarnOwl::fields", TRUE);
333
334  if(file) {
335    SV * cfg = get_sv("BarnOwl::configfile", TRUE);
336    sv_setpv(cfg, file);
337  }
338
339  perl_eval_pv(owl_perlwrap_codebuff, FALSE);
340
341  if (SvTRUE(ERRSV)) {
342    STRLEN n_a;
343    err=owl_strdup(SvPV(ERRSV, n_a));
344    sv_setsv (ERRSV, &PL_sv_undef);     /* and clear the error */
345    return(err);
346  }
347
348  /* check if we have the formatting function */
349  if (owl_perlconfig_is_function("BarnOwl::format_msg")) {
350    owl_global_set_config_format(&g, 1);
351  }
352
353  return(NULL);
354}
355
356/* returns whether or not a function exists */
357int owl_perlconfig_is_function(char *fn) {
358  if (perl_get_cv(fn, FALSE)) return(1);
359  else return(0);
360}
361
362/* returns 0 on success */
363int owl_perlconfig_get_hashkeys(char *hashname, owl_list *l)
364{
365  HV *hv;
366  HE *he;
367  char *key;
368  I32 i;
369
370  if (owl_list_create(l)) return(-1);
371  hv = get_hv(hashname, FALSE);
372  if (!hv) return(-1);
373  i = hv_iterinit(hv);
374  while ((he = hv_iternext(hv))) {
375    key = hv_iterkey(he, &i);
376    if (key) {
377      owl_list_append_element(l, owl_strdup(key));
378    }
379  }
380  return(0);
381}
382
383/* caller is responsible for freeing returned string */
384char *owl_perlconfig_execute(char *line)
385{
386  STRLEN len;
387  SV *response;
388  char *out, *preout;
389
390  if (!owl_global_have_config(&g)) return NULL;
391
392  /* execute the subroutine */
393  response = perl_eval_pv(line, FALSE);
394
395  if (SvTRUE(ERRSV)) {
396    STRLEN n_a;
397    owl_function_error("Perl Error: '%s'", SvPV(ERRSV, n_a));
398    sv_setsv (ERRSV, &PL_sv_undef);     /* and clear the error */
399  }
400
401  preout=SvPV(response, len);
402  /* leave enough space in case we have to add a newline */
403  out = owl_malloc(strlen(preout)+2);
404  strncpy(out, preout, len);
405  out[len] = '\0';
406  if (!strlen(out) || out[strlen(out)-1]!='\n') {
407    strcat(out, "\n");
408  }
409
410  return(out);
411}
412
413void owl_perlconfig_getmsg(owl_message *m, char *subname)
414{
415  char *ptr = NULL;
416  if (owl_perlconfig_is_function("BarnOwl::Hooks::_receive_msg")) {
417    ptr = owl_perlconfig_call_with_message(subname?subname
418                                           :"BarnOwl::_receive_msg_legacy_wrap", m);
419  }
420  if (ptr) owl_free(ptr);
421}
422
423char *owl_perlconfig_perlcmd(owl_cmd *cmd, int argc, char **argv)
424{
425  int i, count;
426  char * ret = NULL;
427  SV *rv;
428  STRLEN n_a;
429  dSP;
430
431  ENTER;
432  SAVETMPS;
433
434  PUSHMARK(SP);
435  for(i=0;i<argc;i++) {
436    SV *tmp = newSVpv(argv[i], 0);
437    SvUTF8_on(tmp);
438    XPUSHs(sv_2mortal(tmp));
439  }
440  PUTBACK;
441
442  count = call_sv(cmd->cmd_perl, G_SCALAR|G_EVAL);
443
444  SPAGAIN;
445
446  if(SvTRUE(ERRSV)) {
447    owl_function_error("%s", SvPV(ERRSV, n_a));
448    POPs;
449  } else {
450    if(count != 1)
451      croak("Perl command %s returned more than one value!", cmd->name);
452    rv = POPs;
453    if(SvTRUE(rv)) {
454      ret = owl_strdup(SvPV(rv, n_a));
455    }
456  }
457
458  FREETMPS;
459  LEAVE;
460
461  return ret;
462}
463
464void owl_perlconfig_cmd_free(owl_cmd *cmd)
465{
466  SvREFCNT_dec(cmd->cmd_perl);
467}
468
469void owl_perlconfig_dispatch_free(owl_dispatch *d)
470{
471  SvREFCNT_dec(d->pfunc);
472}
473
474void owl_perlconfig_edit_callback(owl_editwin *e)
475{
476  SV *cb = (SV*)(e->cbdata);
477  SV *text;
478  unsigned int n_a;
479  dSP;
480
481  if(cb == NULL) {
482    owl_function_error("Perl callback is NULL!");
483  }
484  text = newSVpv(owl_editwin_get_text(e), 0);
485  SvUTF8_on(text);
486
487  ENTER;
488  SAVETMPS;
489
490  PUSHMARK(SP);
491  XPUSHs(sv_2mortal(text));
492  PUTBACK;
493 
494  call_sv(cb, G_DISCARD|G_KEEPERR|G_EVAL);
495
496  if(SvTRUE(ERRSV)) {
497    owl_function_error("%s", SvPV(ERRSV, n_a));
498  }
499
500  FREETMPS;
501  LEAVE;
502
503  SvREFCNT_dec(cb);
504  e->cbdata = NULL;
505}
506
507void owl_perlconfig_mainloop()
508{
509  dSP;
510  if (!owl_perlconfig_is_function("BarnOwl::Hooks::_mainloop_hook"))
511    return;
512  PUSHMARK(SP) ;
513  call_pv("BarnOwl::Hooks::_mainloop_hook", G_DISCARD|G_EVAL);
514  if(SvTRUE(ERRSV)) {
515    STRLEN n_a;
516    owl_function_error("%s", SvPV(ERRSV, n_a));
517  }
518  return;
519}
520
521void owl_perlconfig_do_dispatch(owl_dispatch *d)
522{
523  SV *cb = d->pfunc;
524  unsigned int n_a;
525  dSP;
526  if(cb == NULL) {
527    owl_function_error("Perl callback is NULL!");
528  }
529
530  ENTER;
531  SAVETMPS;
532
533  PUSHMARK(SP);
534  PUTBACK;
535 
536  call_sv(cb, G_DISCARD|G_KEEPERR|G_EVAL);
537
538  if(SvTRUE(ERRSV)) {
539    owl_function_error("%s", SvPV(ERRSV, n_a));
540  }
541
542  FREETMPS;
543  LEAVE;
544}
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