/[gpgoe]/trunk/src/OEProc.c
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revision 1 by twoaday, Fri Mar 24 13:36:54 2006 UTC revision 23 by twoaday, Sat Aug 18 10:55:14 2007 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 23  Line 23 
23  #endif  #endif
24  #include <windows.h>  #include <windows.h>
25  #include <stdio.h>  #include <stdio.h>
26    #include <commctrl.h>
27    
28  #include "gpgme.h"  #include "gpgme.h"
29  #include "GPGOE.h"  #include "GPGOE.h"
30    
31    /* FIXME: I'm not sure if this still works with the Vista version of Express */
32    
33    /* Outlook V6.x command IDs. */
34    #define ID_OE_ENCRYPT       40260
35    #define ID_OE_SIGN          40299
36    #define ID_OE_SEND          40411
37    #define ID_OE_PREVMSG       40145
38    #define ID_OE_NEXTMSG       40146
39    #define ID_OE_ATTACH        40237
40    
41    /* Outlook select charset IDs. */
42    #define ID_OE_CP_UTF8           42540
43    #define ID_OE_CP_WEUROPE_ISO    42544
44    #define ID_OE_CP_WEUROPE_WINCP  42545
45    #define ID_OE_CP_MEUROPE_ISO    42525
46    #define ID_OE_CP_MEUROPE_WINCP  42526
47    #define ID_OE_CP_LATIN9         42535
48    
49  /* Global plugin structure. */  /* Global plugin structure. */
50  static plugin_ctx_t oe_plug;  plugin_ctx_t oe_plug;
51    
52    /* We show a warning for the attachment problem, but only once. */
53    static int attach_warn_shown = 0;
54    
55    /* One time initialisation finished?. */
56    static int plugin_preload_done = 0;
57    
58    /* Event to indicate if the plugin is active or not. */
59    HANDLE plugin_active = NULL;
60    
61    
62    /* Display a warning that the attachments of the mail will be
63       sent in cleartext. */
64    static void
65    show_attachment_warn (HWND hwnd)
66    {
67        if (attach_warn_shown)
68            return;
69    
70        MessageBox (hwnd, _("GPGOE is unable to secure attachments.\r\n"
71                            "As a result the data attached to this mail is NOT encrypted."),
72                    _("GPG Plug-in Warning"), MB_ICONWARNING|MB_OK);
73        attach_warn_shown = 1;
74    }
75    
76    
77  /* 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 81  show_plaintext_warn (HWND hwnd, int rc)
81      const char *fmt, *s;      const char *fmt, *s;
82      char *p;      char *p;
83    
84      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"
85                "Error description: %s.");
86      s = gpgme_strerror (rc);      s = gpgme_strerror (rc);
87      p = xcalloc (1, strlen (fmt)+ strlen (s)+2);      p = xcalloc (1, strlen (fmt)+ strlen (s)+2);
88      sprintf (p, fmt, s);      sprintf (p, fmt, s);
# Line 46  show_plaintext_warn (HWND hwnd, int rc) Line 91  show_plaintext_warn (HWND hwnd, int rc)
91  }  }
92    
93    
94  /* Reset the plugin. */  /* Reset the plugin state. */
95  static void  static void
96  plugin_reset (plugin_ctx_t ctx)  plugin_reset (plugin_ctx_t ctx)
97  {  {
# Line 60  plugin_reset (plugin_ctx_t ctx) Line 105  plugin_reset (plugin_ctx_t ctx)
105  }  }
106    
107    
108    /* Release plugin context. */
109  static void  static void
110  plugin_release (plugin_ctx_t ctx)  plugin_release (plugin_ctx_t ctx)
111  {  {
# Line 70  plugin_release (plugin_ctx_t ctx) Line 116  plugin_release (plugin_ctx_t ctx)
116  }  }
117    
118    
119    /* Create new plugin context. */
120  static int  static int
121  plugin_new (plugin_ctx_t *r_ctx)  plugin_new (plugin_ctx_t *r_ctx)
122  {      {    
# Line 97  get_address_text (HWND main, HWND edit) Line 144  get_address_text (HWND main, HWND edit)
144                        GetWindowThreadProcessId (main, NULL),                        GetWindowThreadProcessId (main, NULL),
145                        FALSE);                        FALSE);
146    
147      SendMessage (main, WM_COMMAND, MAKEWPARAM (ID_OE5_SELECTALL, 0), 0);      SendMessage (main, WM_COMMAND, MAKEWPARAM (ID_OE_SELECTALL, 0), 0);
148      SendMessage (main, WM_COMMAND, MAKEWPARAM (ID_OE5_COPY, 0), 0);      SendMessage (main, WM_COMMAND, MAKEWPARAM (ID_OE_COPY, 0), 0);
149            
150      Sleep (200);      Sleep (200);
151    
# Line 106  get_address_text (HWND main, HWND edit) Line 153  get_address_text (HWND main, HWND edit)
153  }  }
154    
155    
156  /* 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. */  
157  int  int
158  window_is_inbox (HWND to_hwnd)  window_is_inbox (HWND to_hwnd)
159  {  {
160      /*      char wclass[200];
161      XXX: we need to check the express version otherwise early  
162           V6 versions will not work.      if (GetDlgCtrlID (to_hwnd) == 1028 &&
163      if (GetWindowLong (to_hwnd, GWL_STYLE) & ES_READONLY)          GetClassName (to_hwnd, wclass, sizeof (wclass)-1) > 0
164          return 1;          && !strcmp (wclass, "RichEdit20W"))
     */  
     if (GetDlgCtrlID (to_hwnd) == 1028)  
165          return 1;          return 1;
166      return 0;      return 0;
167  }  }
168    
169    
170    /* Check if the attach listview control contains at least one entry.
171       Return the amount of attachments. */
172    int
173    mail_count_attachments (plugin_ctx_t ctx)
174    {
175        if (!ctx->attach)
176            return 0;
177        return ListView_GetItemCount (ctx->attach);
178    }
179    
180    
181  /* Initialize the plugin context:  /* Initialize the plugin context:
182     Find all windows the plugin need to handle messages.     Find all windows the plugin need to handle messages.
183     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
184     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! */  
185  int  int
186  plugin_init (plugin_ctx_t ctx, HWND main, int is_inbox)  plugin_init (plugin_ctx_t ctx, HWND main, int is_inbox)
187  {  {
188        /* store original clipboard text. */
189        free_if_alloc (ctx->orig_text);
190        ctx->orig_text = get_clip_text (NULL);
191    
192      ctx->sign = 0;      ctx->sign = 0;
193      ctx->encrypt = 0;      ctx->encrypt = 0;
194    
195      ctx->main_wnd = main;      ctx->main_wnd = main;
196      ctx->addr_wnd = FindWindowEx (main, NULL, "OE_Envelope", NULL);      ctx->addr_wnd = FindWindowEx (main, NULL, "OE_Envelope", NULL);
197      ctx->to_wnd = FindWindowEx (ctx->addr_wnd, NULL, "RICHEDIT", NULL);      ctx->to_wnd = FindWindowEx (ctx->addr_wnd, NULL, "RichEdit20W", NULL);
198      if (!ctx->to_wnd)      ctx->cc_wnd = FindWindowEx (ctx->addr_wnd, ctx->to_wnd, "RichEdit20W", NULL);
199          ctx->to_wnd = FindWindowEx (ctx->addr_wnd, NULL, "RichEdit20W", NULL);      ctx->bcc_wnd = FindWindowEx (ctx->addr_wnd, ctx->cc_wnd, "RichEdit20W", NULL);
200      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);  
201      ctx->to = NULL;      ctx->to = NULL;
202      ctx->cc = NULL;      ctx->cc = NULL;
203      ctx->bcc = NULL;      ctx->bcc = NULL;
204    
205        ctx->attach = FindWindowEx (ctx->addr_wnd, NULL, "SysListView32", NULL);
206    
207      if (!is_inbox && !window_is_inbox (ctx->to_wnd)) {      if (!is_inbox && !window_is_inbox (ctx->to_wnd)) {
208          ctx->to = get_address_text (ctx->main_wnd, ctx->to_wnd);          ctx->to = get_address_text (ctx->main_wnd, ctx->to_wnd);
209          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 214  plugin_init (plugin_ctx_t ctx, HWND main
214  }  }
215    
216    
217    /* Clear the clipboard contents. */
218  static void  static void
219  clear_clipboard (void)  clear_clipboard (void)
220  {  {
# Line 170  clear_clipboard (void) Line 224  clear_clipboard (void)
224  }  }
225    
226    
227    /* Restore the original clipboard data from the plugin context. */
228    static void
229    restore_clipboard (plugin_ctx_t ctx)
230    {
231        if (!ctx->orig_text)
232            return;
233        set_clip_text (NULL, ctx->orig_text, strlen (ctx->orig_text));
234        free_if_alloc (ctx->orig_text);
235    }
236    
237    
238  /* Subclass dialog procedure for the outlook message window. */  /* Subclass dialog procedure for the outlook message window. */
239  LRESULT CALLBACK  LRESULT CALLBACK
240  oe_proc (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)  oe_proc (HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
241  {      {    
242      static initialized = 0;      static int initialized = 0;
243      static int encr_msg = 0;      static int encr_msg = 0;
244      static int sign_msg = 0;      static int sign_msg = 0;
245      int rc = 0;      int rc = 0;
# Line 183  oe_proc (HWND hwnd, UINT msg, WPARAM wpa Line 248  oe_proc (HWND hwnd, UINT msg, WPARAM wpa
248          initialized = SetTimer (hwnd, 1, 1000, NULL);          initialized = SetTimer (hwnd, 1, 1000, NULL);
249    
250      switch (msg) {      switch (msg) {
251      case WM_CREATE:          case WM_CREATE:
252            if (!plugin_preload_done) {
253                /* We need to load this lib here otherwise the richedit
254                   control would not be displayed. */
255                LoadLibrary ("RichEd32.Dll");
256                setup_gettext();
257                plugin_active = CreateEvent (NULL, TRUE, FALSE, NULL);
258                plugin_preload_done = 1;
259            }
260          initialized = 0;          initialized = 0;
261          plugin_new (&oe_plug);          plugin_new (&oe_plug);
262          break;          break;
263    
264      case WM_DESTROY:      case WM_DESTROY:
265            ResetEvent (plugin_active);
266          plugin_release (oe_plug);          plugin_release (oe_plug);
267            encr_msg = sign_msg = 0;
268          break;          break;
269    
270      case WM_TIMER:      case WM_TIMER:      
         clear_clipboard ();  
271          KillTimer (hwnd, initialized);          KillTimer (hwnd, initialized);
272          plugin_reset (oe_plug);          plugin_reset (oe_plug);
273          plugin_init (oe_plug, hwnd, 1);          plugin_init (oe_plug, hwnd, 1);
274          if (window_is_inbox (oe_plug->to_wnd)) {          if (window_is_inbox (oe_plug->to_wnd)) {
275                clear_clipboard ();
276              rc = oe_handle_mail (oe_plug);              rc = oe_handle_mail (oe_plug);
277              if (rc)              if (rc)
278                  show_error (hwnd, _("GPG Plug-in Error"), MB_ICONERROR|MB_OK,                  show_error (hwnd, _("GPG Plug-in Error"), MB_ICONERROR|MB_OK,
279                              _("decrypt/verify: %s\n%s"),                              _("decrypt/verify: %s\n%s"),
280                              gpgme_strerror (rc), oe_plug->errbuf);                              gpgme_strerror (rc), oe_plug->errbuf);
281          }          }
282          break;          break;  
     }  
283    
284      switch (LOWORD (wparam)) {      case WM_COMMAND:
285      case ID_OE5_PREVMSG:          switch (LOWORD (wparam)) {
286      case ID_OE5_NEXTMSG:          case ID_OE_PREVMSG:
287          SetTimer (hwnd, 1, 1000, NULL);          case ID_OE_NEXTMSG:
288                SetTimer (hwnd, 1, 1000, NULL);
289                break;
290    
291            case ID_OE_CP_UTF8:
292                oe_plug->use_utf8 = 1;
293                break;
294    
295            case ID_OE_CP_WEUROPE_ISO:
296            case ID_OE_CP_WEUROPE_WINCP:
297            case ID_OE_CP_MEUROPE_ISO:
298            case ID_OE_CP_MEUROPE_WINCP:
299            case ID_OE_CP_LATIN9:
300                oe_plug->use_utf8 = 0;
301                break;
302    
303            case ID_OE_ATTACH:
304                break;
305    
306            case ID_OE_ENCRYPT:
307                encr_msg ^= 1;
308                break;
309    
310            case ID_OE_SIGN:
311                sign_msg ^= 1;
312                break;
313    
314            case ID_OE_SEND:
315                if (encr_msg || sign_msg) {
316                    plugin_init (oe_plug, hwnd, 0);
317                    if (encr_msg) {
318                        SendMessage (hwnd, WM_COMMAND, MAKEWPARAM (ID_OE_ENCRYPT, 0), 0);
319                        oe_plug->encrypt = 1;
320                    }
321                    if (sign_msg) {
322                        SendMessage (hwnd, WM_COMMAND, MAKEWPARAM (ID_OE_SIGN, 0), 0);
323                        oe_plug->sign = 1;
324                    }
325                    rc = oe_handle_mail (oe_plug);
326                    if (rc)
327                        show_plaintext_warn (hwnd, rc);
328                    restore_clipboard (oe_plug);
329                    if (mail_count_attachments (oe_plug) > 0)
330                        show_attachment_warn (hwnd);
331                }
332                break;
333            }
334          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;    
335      }      }
336    
337      return CallWindowProc (oe_proc_old, hwnd, msg, wparam, lparam);      return CallWindowProc (oe_proc_old, hwnd, msg, wparam, lparam);
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