/[gpgoe]/trunk/src/OEProc.c
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revision 1 by twoaday, Fri Mar 24 13:36:54 2006 UTC revision 24 by twoaday, Tue Dec 13 10:40:30 2011 UTC
# Line 1  Line 1 
1  /* OEProc.c - OE window procedures  /* OEProc.c - OE window procedure
2   *      Copyright (C) 2001, 2002, 2003, 2006 Timo Schulz   *      Copyright (C) 2001, 2002, 2003, 2006 Timo Schulz
3   *   *
4   * This file is part of GPGOE.   * This file is part of GPGOE.
# Line 12  Line 12 
12   * but WITHOUT ANY WARRANTY; without even the implied warranty of   * but WITHOUT ANY WARRANTY; without even the implied warranty of
13   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   * GNU General Public License for more details.   * GNU General Public License for more details.
  *  
  * You should have received a copy of the GNU Lesser General Public License  
  * along with GPGOE; if not, write to the Free Software Foundation,  
  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA  
15   */   */
16    
17  #ifdef HAVE_CONFIG_H  #ifdef HAVE_CONFIG_H
# Line 23  Line 19 
19  #endif  #endif
20  #include <windows.h>  #include <windows.h>
21  #include <stdio.h>  #include <stdio.h>
22    #include <commctrl.h>
23    
24  #include "gpgme.h"  #include "gpgme.h"
25  #include "GPGOE.h"  #include "GPGOE.h"
26    
27    /* FIXME: I'm not sure if this still works with the Vista version of Express */
28    
29    /* Outlook V6.x command IDs. */
30    #define ID_OE_ENCRYPT       40260
31    #define ID_OE_SIGN          40299
32    #define ID_OE_SEND          40411
33    #define ID_OE_PREVMSG       40145
34    #define ID_OE_NEXTMSG       40146
35    #define ID_OE_ATTACH        40237
36    
37    /* Outlook select charset IDs. */
38    #define ID_OE_CP_UTF8           42540
39    #define ID_OE_CP_WEUROPE_ISO    42544
40    #define ID_OE_CP_WEUROPE_WINCP  42545
41    #define ID_OE_CP_MEUROPE_ISO    42525
42    #define ID_OE_CP_MEUROPE_WINCP  42526
43    #define ID_OE_CP_LATIN9         42535
44    
45  /* Global plugin structure. */  /* Global plugin structure. */
46  static plugin_ctx_t oe_plug;  plugin_ctx_t oe_plug;
47    
48    /* We show a warning for the attachment problem, but only once. */
49    static int attach_warn_shown = 0;
50    
51    /* One time initialisation finished?. */
52    static int plugin_preload_done = 0;
53    
54    /* Event to indicate if the plugin is active or not. */
55    HANDLE plugin_active = NULL;
56    
57    
58    /* Display a warning that the attachments of the mail will be
59       sent in cleartext. */
60    static void
61    show_attachment_warn (HWND hwnd)
62    {
63        if (attach_warn_shown)
64            return;
65    
66        MessageBox (hwnd, _("GPGOE is unable to secure attachments.\r\n"
67                            "As a result the data attached to this mail is NOT encrypted."),
68                    _("GPG Plug-in Warning"), MB_ICONWARNING|MB_OK);
69        attach_warn_shown = 1;
70    }
71    
72    
73  /* Display a warning that the mail will be sent in clear. */  /* Display a warning that the mail will be sent in clear. */
# Line 37  show_plaintext_warn (HWND hwnd, int rc) Line 77  show_plaintext_warn (HWND hwnd, int rc)
77      const char *fmt, *s;      const char *fmt, *s;
78      char *p;      char *p;
79    
80      fmt = _("WARNING: This message will be sent in cleartext.\r\n%s");      fmt = _("WARNING: This message will be sent in cleartext.\r\n\r\n"
81                "Error description: %s.");
82      s = gpgme_strerror (rc);      s = gpgme_strerror (rc);
83      p = xcalloc (1, strlen (fmt)+ strlen (s)+2);      p = xcalloc (1, strlen (fmt)+ strlen (s)+2);
84      sprintf (p, fmt, s);      sprintf (p, fmt, s);
# Line 46  show_plaintext_warn (HWND hwnd, int rc) Line 87  show_plaintext_warn (HWND hwnd, int rc)
87  }  }
88    
89    
90  /* Reset the plugin. */  /* Reset the plugin state. */
91  static void  static void
92  plugin_reset (plugin_ctx_t ctx)  plugin_reset (plugin_ctx_t ctx)
93  {  {
# Line 60  plugin_reset (plugin_ctx_t ctx) Line 101  plugin_reset (plugin_ctx_t ctx)
101  }  }
102    
103    
104    /* Release plugin context. */
105  static void  static void
106  plugin_release (plugin_ctx_t ctx)  plugin_release (plugin_ctx_t ctx)
107  {  {
# Line 70  plugin_release (plugin_ctx_t ctx) Line 112  plugin_release (plugin_ctx_t ctx)
112  }  }
113    
114    
115    /* Create new plugin context. */
116  static int  static int
117  plugin_new (plugin_ctx_t *r_ctx)  plugin_new (plugin_ctx_t *r_ctx)
118  {      {    
# Line 97  get_address_text (HWND main, HWND edit) Line 140  get_address_text (HWND main, HWND edit)
140                        GetWindowThreadProcessId (main, NULL),                        GetWindowThreadProcessId (main, NULL),
141                        FALSE);                        FALSE);
142    
143      SendMessage (main, WM_COMMAND, MAKEWPARAM (ID_OE5_SELECTALL, 0), 0);      SendMessage (main, WM_COMMAND, MAKEWPARAM (ID_OE_SELECTALL, 0), 0);
144      SendMessage (main, WM_COMMAND, MAKEWPARAM (ID_OE5_COPY, 0), 0);      SendMessage (main, WM_COMMAND, MAKEWPARAM (ID_OE_COPY, 0), 0);
145            
146      Sleep (200);      Sleep (200);
147    
# Line 106  get_address_text (HWND main, HWND edit) Line 149  get_address_text (HWND main, HWND edit)
149  }  }
150    
151    
152  /* Try to figure out if the message is from the inbox or  /* Try to figure out if the message is from the inbox or the outbox folder. */
    the outbox folder. */  
153  int  int
154  window_is_inbox (HWND to_hwnd)  window_is_inbox (HWND to_hwnd)
155  {  {
156      /*      char wclass[200];
157      XXX: we need to check the express version otherwise early  
158           V6 versions will not work.      if (GetDlgCtrlID (to_hwnd) == 1028 &&
159      if (GetWindowLong (to_hwnd, GWL_STYLE) & ES_READONLY)          GetClassName (to_hwnd, wclass, sizeof (wclass)-1) > 0
160          return 1;          && !strcmp (wclass, "RichEdit20W"))
     */  
     if (GetDlgCtrlID (to_hwnd) == 1028)  
161          return 1;          return 1;
162      return 0;      return 0;
163  }  }
164    
165    
166    /* Check if the attach listview control contains at least one entry.
167       Return the amount of attachments. */
168    int
169    mail_count_attachments (plugin_ctx_t ctx)
170    {
171        if (!ctx->attach)
172            return 0;
173        return ListView_GetItemCount (ctx->attach);
174    }
175    
176    
177  /* Initialize the plugin context:  /* Initialize the plugin context:
178     Find all windows the plugin need to handle messages.     Find all windows the plugin need to handle messages.
179     The text of the recipients fields is only used when the message comes     The text of the recipients fields is only used when the message comes
180     from the outbox, because the inbox fields are readonly.     from the outbox, because the inbox fields are readonly. */
    >= OE 5.5 uses a newer RichEdit control! */  
181  int  int
182  plugin_init (plugin_ctx_t ctx, HWND main, int is_inbox)  plugin_init (plugin_ctx_t ctx, HWND main, int is_inbox)
183  {  {
184        /* store original clipboard text. */
185        free_if_alloc (ctx->orig_text);
186        ctx->orig_text = get_clip_text (NULL);
187    
188      ctx->sign = 0;      ctx->sign = 0;
189      ctx->encrypt = 0;      ctx->encrypt = 0;
190    
191      ctx->main_wnd = main;      ctx->main_wnd = main;
192      ctx->addr_wnd = FindWindowEx (main, NULL, "OE_Envelope", NULL);      ctx->addr_wnd = FindWindowEx (main, NULL, "OE_Envelope", NULL);
193      ctx->to_wnd = FindWindowEx (ctx->addr_wnd, NULL, "RICHEDIT", NULL);      ctx->to_wnd = FindWindowEx (ctx->addr_wnd, NULL, "RichEdit20W", NULL);
194      if (!ctx->to_wnd)      ctx->cc_wnd = FindWindowEx (ctx->addr_wnd, ctx->to_wnd, "RichEdit20W", NULL);
195          ctx->to_wnd = FindWindowEx (ctx->addr_wnd, NULL, "RichEdit20W", NULL);      ctx->bcc_wnd = FindWindowEx (ctx->addr_wnd, ctx->cc_wnd, "RichEdit20W", NULL);
196      ctx->cc_wnd = FindWindowEx (ctx->addr_wnd, ctx->to_wnd, "RICHEDIT", NULL);  
     if (!ctx->cc_wnd)  
         ctx->cc_wnd = FindWindowEx (ctx->addr_wnd, ctx->to_wnd,  
                                     "RichEdit20W", NULL);  
     ctx->bcc_wnd = FindWindowEx (ctx->addr_wnd, ctx->cc_wnd, "RICHEDIT", NULL);  
     if (!ctx->bcc_wnd)  
         ctx->bcc_wnd = FindWindowEx (ctx->addr_wnd, ctx->cc_wnd,  
                                      "RichEdit20W", NULL);  
197      ctx->to = NULL;      ctx->to = NULL;
198      ctx->cc = NULL;      ctx->cc = NULL;
199      ctx->bcc = NULL;      ctx->bcc = NULL;
200    
201        ctx->attach = FindWindowEx (ctx->addr_wnd, NULL, "SysListView32", NULL);
202    
203      if (!is_inbox && !window_is_inbox (ctx->to_wnd)) {      if (!is_inbox && !window_is_inbox (ctx->to_wnd)) {
204          ctx->to = get_address_text (ctx->main_wnd, ctx->to_wnd);          ctx->to = get_address_text (ctx->main_wnd, ctx->to_wnd);
205          ctx->cc = get_address_text (ctx->main_wnd, ctx->cc_wnd);          ctx->cc = get_address_text (ctx->main_wnd, ctx->cc_wnd);
# Line 161  plugin_init (plugin_ctx_t ctx, HWND main Line 210  plugin_init (plugin_ctx_t ctx, HWND main
210  }  }
211    
212    
213    /* Clear the clipboard contents. */
214  static void  static void
215  clear_clipboard (void)  clear_clipboard (void)
216  {  {
# Line 170  clear_clipboard (void) Line 220  clear_clipboard (void)
220  }  }
221    
222    
223    /* Restore the original clipboard data from the plugin context. */
224    static void
225    restore_clipboard (plugin_ctx_t ctx)
226    {
227        if (!ctx->orig_text)
228            return;
229        set_clip_text (NULL, ctx->orig_text, strlen (ctx->orig_text));
230        free_if_alloc (ctx->orig_text);
231    }
232    
233    
234  /* Subclass dialog procedure for the outlook message window. */  /* Subclass dialog procedure for the outlook message window. */
235  LRESULT CALLBACK  LRESULT CALLBACK
236  oe_proc (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)  oe_proc (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
237  {      {    
238      static initialized = 0;      static int initialized = 0;
239      static int encr_msg = 0;      static int encr_msg = 0;
240      static int sign_msg = 0;      static int sign_msg = 0;
241      int rc = 0;      int rc = 0;
# Line 183  oe_proc (HWND hwnd, UINT msg, WPARAM wpa Line 244  oe_proc (HWND hwnd, UINT msg, WPARAM wpa
244          initialized = SetTimer (hwnd, 1, 1000, NULL);          initialized = SetTimer (hwnd, 1, 1000, NULL);
245    
246      switch (msg) {      switch (msg) {
247      case WM_CREATE:          case WM_CREATE:
248            if (!plugin_preload_done) {
249                /* We need to load this lib here otherwise the richedit
250                   control would not be displayed. */
251                LoadLibrary ("RichEd32.Dll");
252                setup_gettext();
253                plugin_active = CreateEvent (NULL, TRUE, FALSE, NULL);
254                plugin_preload_done = 1;
255            }
256          initialized = 0;          initialized = 0;
257          plugin_new (&oe_plug);          plugin_new (&oe_plug);
258          break;          break;
259    
260      case WM_DESTROY:      case WM_DESTROY:
261            ResetEvent (plugin_active);
262          plugin_release (oe_plug);          plugin_release (oe_plug);
263            encr_msg = sign_msg = 0;
264          break;          break;
265    
266      case WM_TIMER:      case WM_TIMER:      
         clear_clipboard ();  
267          KillTimer (hwnd, initialized);          KillTimer (hwnd, initialized);
268          plugin_reset (oe_plug);          plugin_reset (oe_plug);
269          plugin_init (oe_plug, hwnd, 1);          plugin_init (oe_plug, hwnd, 1);
270          if (window_is_inbox (oe_plug->to_wnd)) {          if (window_is_inbox (oe_plug->to_wnd)) {
271                clear_clipboard ();
272              rc = oe_handle_mail (oe_plug);              rc = oe_handle_mail (oe_plug);
273              if (rc)              if (rc)
274                  show_error (hwnd, _("GPG Plug-in Error"), MB_ICONERROR|MB_OK,                  show_error (hwnd, _("GPG Plug-in Error"), MB_ICONERROR|MB_OK,
275                              _("decrypt/verify: %s\n%s"),                              _("decrypt/verify: %s\n%s"),
276                              gpgme_strerror (rc), oe_plug->errbuf);                              gpgme_strerror (rc), oe_plug->errbuf);
277          }          }
278          break;          break;  
     }  
279    
280      switch (LOWORD (wparam)) {      case WM_COMMAND:
281      case ID_OE5_PREVMSG:          switch (LOWORD (wparam)) {
282      case ID_OE5_NEXTMSG:          case ID_OE_PREVMSG:
283          SetTimer (hwnd, 1, 1000, NULL);          case ID_OE_NEXTMSG:
284                SetTimer (hwnd, 1, 1000, NULL);
285                break;
286    
287            case ID_OE_CP_UTF8:
288                oe_plug->use_utf8 = 1;
289                break;
290    
291            case ID_OE_CP_WEUROPE_ISO:
292            case ID_OE_CP_WEUROPE_WINCP:
293            case ID_OE_CP_MEUROPE_ISO:
294            case ID_OE_CP_MEUROPE_WINCP:
295            case ID_OE_CP_LATIN9:
296                oe_plug->use_utf8 = 0;
297                break;
298    
299            case ID_OE_ATTACH:
300                break;
301    
302            case ID_OE_ENCRYPT:
303                encr_msg ^= 1;
304                break;
305    
306            case ID_OE_SIGN:
307                sign_msg ^= 1;
308                break;
309    
310            case ID_OE_SEND:
311                if (encr_msg || sign_msg) {
312                    plugin_init (oe_plug, hwnd, 0);
313                    if (encr_msg) {
314                        SendMessage (hwnd, WM_COMMAND, MAKEWPARAM (ID_OE_ENCRYPT, 0), 0);
315                        oe_plug->encrypt = 1;
316                    }
317                    if (sign_msg) {
318                        SendMessage (hwnd, WM_COMMAND, MAKEWPARAM (ID_OE_SIGN, 0), 0);
319                        oe_plug->sign = 1;
320                    }
321                    rc = oe_handle_mail (oe_plug);
322                    if (rc)
323                        show_plaintext_warn (hwnd, rc);
324                    restore_clipboard (oe_plug);
325                    if (mail_count_attachments (oe_plug) > 0)
326                        show_attachment_warn (hwnd);
327                }
328                break;
329            }
330          break;          break;
   
     case ID_OE5_ENCRYPT:  
         encr_msg ^= 1;  
         break;  
   
     case ID_OE5_SIGN:  
         sign_msg ^= 1;  
         break;  
   
     case ID_OE5_SEND:  
         if (encr_msg || sign_msg) {  
             plugin_init (oe_plug, hwnd, 0);  
             if (encr_msg) {  
                 SendMessage (hwnd, WM_COMMAND, MAKEWPARAM(ID_OE5_ENCRYPT, 0), 0);  
                 oe_plug->encrypt = 1;  
             }  
             if (sign_msg) {  
                 SendMessage (hwnd, WM_COMMAND, MAKEWPARAM(ID_OE5_SIGN, 0), 0);  
                 oe_plug->sign = 1;  
             }  
             rc = oe_handle_mail (oe_plug);  
             if (rc)  
                 show_plaintext_warn (hwnd, rc);  
         }  
         break;    
331      }      }
332    
333      return CallWindowProc (oe_proc_old, hwnd, msg, wparam, lparam);      return CallWindowProc (oe_proc_old, hwnd, msg, wparam, lparam);
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