summaryrefslogtreecommitdiffstats
path: root/tdeioslaves/imap4/imap4.cc
blob: cb0f06ad80bb602465d7bef9ad2db640e1cffa5e (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
/**********************************************************************
 *
 *   imap4.cc  - IMAP4rev1 KIOSlave
 *   Copyright (C) 2001-2002  Michael Haeckel <haeckel@kde.org>
 *   Copyright (C) 1999  John Corey
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 *   Send comments and bug fixes to jcorey@fruity.ath.cx
 *
 *********************************************************************/

/**
 * @class IMAP4Protocol
 * @note References:
 *   - RFC 2060 - Internet Message Access Protocol - Version 4rev1 - December 1996
 *   - RFC 2192 - IMAP URL Scheme - September 1997
 *   - RFC 1731 - IMAP Authentication Mechanisms - December 1994
 *              (Discusses KERBEROSv4, GSSAPI, and S/Key)
 *   - RFC 2195 - IMAP/POP AUTHorize Extension for Simple Challenge/Response
 *            - September 1997 (CRAM-MD5 authentication method)
 *   - RFC 2104 - HMAC: Keyed-Hashing for Message Authentication - February 1997
 *   - RFC 2086 - IMAP4 ACL extension - January 1997
 *   - http://www.ietf.org/internet-drafts/draft-daboo-imap-annotatemore-05.txt
 *          IMAP ANNOTATEMORE draft - April 2004.
 *
 *
 * Supported URLs:
 * \verbatim
imap://server/
imap://user:pass@server/
imap://user;AUTH=method:pass@server/
imap://server/folder/
 * \endverbatim
 * These URLs cause the following actions (in order):
 *   - Prompt for user/pass, list all folders in home directory
 *   - Uses LOGIN to log in
 *   - Uses AUTHENTICATE to log in
 *   - List messages in folder
 *
 * @note API notes:
 *   Not receiving the required write access for a folder means
 *       ERR_CANNOT_OPEN_FOR_WRITING.
 *  ERR_DOES_NOT_EXIST is reserved for folders.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "imap4.h"

#include "rfcdecoder.h"

#include <sys/stat.h>

#include <stdio.h>
#include <stdlib.h>
#include <signal.h>
#include <sys/types.h>
#include <sys/wait.h>

#ifdef HAVE_LIBSASL2
extern "C" {
#include <sasl/sasl.h>
}
#endif

#include <tqbuffer.h>
#include <tqdatetime.h>
#include <tqregexp.h>
#include <tdeprotocolmanager.h>
#include <tdemessagebox.h>
#include <kdebug.h>
#include <tdeio/connection.h>
#include <tdeio/slaveinterface.h>
#include <tdeio/passdlg.h>
#include <tdelocale.h>
#include <kmimetype.h>
#include <kmdcodec.h>

#include "tdepimmacros.h"

#define IMAP_PROTOCOL "imap"
#define IMAP_SSL_PROTOCOL "imaps"

using namespace TDEIO;

extern "C"
{
  void sigalrm_handler (int);
  KDE_EXPORT int kdemain (int argc, char **argv);
}

int
kdemain (int argc, char **argv)
{
  kdDebug(7116) << "IMAP4::kdemain" << endl;

  TDEInstance instance ("tdeio_imap4");
  if (argc != 4)
  {
    fprintf(stderr, "Usage: tdeio_imap4 protocol domain-socket1 domain-socket2\n");
    ::exit (-1);
  }

#ifdef HAVE_LIBSASL2
  if ( sasl_client_init( NULL ) != SASL_OK ) {
    fprintf(stderr, "SASL library initialization failed!\n");
    ::exit (-1);
  }
#endif

  //set debug handler

  IMAP4Protocol *slave;
  if (strcasecmp (argv[1], IMAP_SSL_PROTOCOL) == 0)
    slave = new IMAP4Protocol (argv[2], argv[3], true);
  else if (strcasecmp (argv[1], IMAP_PROTOCOL) == 0)
    slave = new IMAP4Protocol (argv[2], argv[3], false);
  else
    abort ();
  slave->dispatchLoop ();
  delete slave;

#ifdef HAVE_LIBSASL2
  sasl_done();
#endif

  return 0;
}

void
sigchld_handler (int signo)
{
  int pid, status;

  while (true && signo == SIGCHLD)
  {
    pid = waitpid (-1, &status, WNOHANG);
    if (pid <= 0)
    {
      // Reinstall signal handler, since Linux resets to default after
      // the signal occurred ( BSD handles it different, but it should do
      // no harm ).
      signal (SIGCHLD, sigchld_handler);
      return;
    }
  }
}

IMAP4Protocol::IMAP4Protocol (const TQCString & pool, const TQCString & app, bool isSSL):TCPSlaveBase ((isSSL ? 993 : 143),
        (isSSL ? IMAP_SSL_PROTOCOL : IMAP_PROTOCOL), pool,
              app, isSSL), imapParser (), mimeIO (), outputBuffer(outputCache)
{
  outputBufferIndex = 0;
  mySSL = isSSL;
  readBuffer[0] = 0x00;
  relayEnabled = false;
  readBufferLen = 0;
  cacheOutput = false;
  decodeContent = false;
  mTimeOfLastNoop = TQDateTime();
}

IMAP4Protocol::~IMAP4Protocol ()
{
  closeDescriptor();
  kdDebug(7116) << "IMAP4: Finishing" << endl;
}

void
IMAP4Protocol::get (const KURL & _url)
{
  if (!makeLogin()) return;
  kdDebug(7116) << "IMAP4::get -  " << _url.prettyURL() << endl;
  TQString aBox, aSequence, aType, aSection, aValidity, aDelimiter, aInfo;
  enum IMAP_TYPE aEnum =
    parseURL (_url, aBox, aSection, aType, aSequence, aValidity, aDelimiter, aInfo);
  if (aEnum != ITYPE_ATTACH)
    mimeType (getMimeType(aEnum));
  if (aInfo == "DECODE")
    decodeContent = true;

  if (aSequence == "0:0" && getState() == ISTATE_SELECT)
  {
    imapCommand *cmd = doCommand (imapCommand::clientNoop());
    completeQueue.removeRef(cmd);
  }

  if (aSequence.isEmpty ())
  {
    aSequence = "1:*";
  }

  mProcessedSize = 0;
  imapCommand *cmd = NULL;
  if (!assureBox (aBox, true)) return;

#ifdef USE_VALIDITY
  if (selectInfo.uidValidityAvailable () && !aValidity.isEmpty ()
      && selectInfo.uidValidity () != aValidity.toULong ())
  {
    // this url is stale
    error (ERR_COULD_NOT_READ, _url.prettyURL());
    return;
  }
  else
#endif
  {
    // The "section" specified by the application can be:
    // * empty (which means body, size and flags)
    // * a known keyword, like STRUCTURE, ENVELOPE, HEADER, BODY.PEEK[...]
    //        (in which case the slave has some logic to add the necessary items)
    // * Otherwise, it specifies the exact data items to request. In this case, all
    //        the logic is in the app.

    TQString aUpper = aSection.upper();
    if (aUpper.find ("STRUCTURE") != -1)
    {
      aSection = "BODYSTRUCTURE";
    }
    else if (aUpper.find ("ENVELOPE") != -1)
    {
      aSection = "UID RFC822.SIZE FLAGS ENVELOPE";
      if (hasCapability("IMAP4rev1")) {
        aSection += " BODY.PEEK[HEADER.FIELDS (REFERENCES)]";
      } else {
        // imap4 does not know HEADER.FIELDS
        aSection += " RFC822.HEADER.LINES (REFERENCES)";
      }
    }
    else if (aUpper == "HEADER")
    {
      aSection = "UID RFC822.HEADER RFC822.SIZE FLAGS";
    }
    else if (aUpper.find ("BODY.PEEK[") != -1)
    {
      if (aUpper.find ("BODY.PEEK[]") != -1)
      {
        if (!hasCapability("IMAP4rev1")) // imap4 does not know BODY.PEEK[]
          aSection.replace("BODY.PEEK[]", "RFC822.PEEK");
      }
      aSection.prepend("UID RFC822.SIZE FLAGS ");
    }
    else if (aSection.isEmpty())
    {
      aSection = "UID BODY[] RFC822.SIZE FLAGS";
    }
    if (aEnum == ITYPE_BOX || aEnum == ITYPE_DIR_AND_BOX)
    {
      // write the digest header
      cacheOutput = true;
      outputLine
        ("Content-Type: multipart/digest; boundary=\"IMAPDIGEST\"\r\n", 55);
      if (selectInfo.recentAvailable ())
        outputLineStr ("X-Recent: " +
                       TQString::number(selectInfo.recent ()) + "\r\n");
      if (selectInfo.countAvailable ())
        outputLineStr ("X-Count: " + TQString::number(selectInfo.count ()) +
                       "\r\n");
      if (selectInfo.unseenAvailable ())
        outputLineStr ("X-Unseen: " +
                       TQString::number(selectInfo.unseen ()) + "\r\n");
      if (selectInfo.uidValidityAvailable ())
        outputLineStr ("X-uidValidity: " +
                       TQString::number(selectInfo.uidValidity ()) +
                       "\r\n");
      if (selectInfo.uidNextAvailable ())
        outputLineStr ("X-UidNext: " +
                       TQString::number(selectInfo.uidNext ()) + "\r\n");
      if (selectInfo.flagsAvailable ())
        outputLineStr ("X-Flags: " + TQString::number(selectInfo.flags ()) +
                       "\r\n");
      if (selectInfo.permanentFlagsAvailable ())
        outputLineStr ("X-PermanentFlags: " +
                       TQString::number(selectInfo.permanentFlags ()) + "\r\n");
      if (selectInfo.readWriteAvailable ()) {
        if (selectInfo.readWrite()) {
          outputLine ("X-Access: Read/Write\r\n", 22);
        } else {
          outputLine ("X-Access: Read only\r\n", 21);
        }
      }
      outputLine ("\r\n", 2);
      flushOutput(TQString());
      cacheOutput = false;
    }

    if (aEnum == ITYPE_MSG || (aEnum == ITYPE_ATTACH && !decodeContent))
      relayEnabled = true; // normal mode, relay data

    if (aSequence != "0:0")
    {
      TQString contentEncoding;
      if (aEnum == ITYPE_ATTACH && decodeContent)
      {
        // get the MIME header and fill getLastHandled()
        TQString mySection = aSection;
        mySection.replace("]", ".MIME]");
        cmd = sendCommand (imapCommand::clientFetch (aSequence, mySection));
        do
        {
          while (!parseLoop ()) ;
        }
        while (!cmd->isComplete ());
        completeQueue.removeRef (cmd);
        // get the content encoding now because getLastHandled will be cleared
        if (getLastHandled() && getLastHandled()->getHeader())
          contentEncoding = getLastHandled()->getHeader()->getEncoding();

        // from here on collect the data
        // it is send to the client in flushOutput in one go
        // needed to decode the content
        cacheOutput = true;
      }

      cmd = sendCommand (imapCommand::clientFetch (aSequence, aSection));
      int res;
      aUpper = aSection.upper();
      do
      {
        while (!(res = parseLoop())) ;
        if (res == -1) break;

        mailHeader *lastone = 0;
        imapCache *cache = getLastHandled ();
        if (cache)
          lastone = cache->getHeader ();

        if (cmd && !cmd->isComplete ())
        {
          if ((aUpper.find ("BODYSTRUCTURE") != -1)
                    || (aUpper.find ("FLAGS") != -1)
                    || (aUpper.find ("UID") != -1)
                    || (aUpper.find ("ENVELOPE") != -1)
                    || (aUpper.find ("BODY.PEEK[0]") != -1
                        && (aEnum == ITYPE_BOX || aEnum == ITYPE_DIR_AND_BOX)))
          {
            if (aEnum == ITYPE_BOX || aEnum == ITYPE_DIR_AND_BOX)
            {
              // write the mime header (default is here message/rfc822)
              outputLine ("--IMAPDIGEST\r\n", 14);
              cacheOutput = true;
              if (cache && cache->getUid () != 0)
                outputLineStr ("X-UID: " +
                               TQString::number(cache->getUid ()) + "\r\n");
              if (cache && cache->getSize () != 0)
                outputLineStr ("X-Length: " +
                               TQString::number(cache->getSize ()) + "\r\n");
              if (cache && !cache->getDate ().isEmpty())
                outputLineStr ("X-Date: " + cache->getDate () + "\r\n");
              if (cache && cache->getFlags () != 0)
                outputLineStr ("X-Flags: " +
                               TQString::number(cache->getFlags ()) + "\r\n");
            } else cacheOutput = true;
            if ( lastone && !decodeContent )
              lastone->outputPart (*this);
            cacheOutput = false;
            flushOutput(contentEncoding);
          }
        } // if not complete
      }
      while (cmd && !cmd->isComplete ());
      if (aEnum == ITYPE_BOX || aEnum == ITYPE_DIR_AND_BOX)
      {
        // write the end boundary
        outputLine ("--IMAPDIGEST--\r\n", 16);
      }

      completeQueue.removeRef (cmd);
    }
  }

  // just to keep everybody happy when no data arrived
  data (TQByteArray ());

  finished ();
  relayEnabled = false;
  cacheOutput = false;
  kdDebug(7116) << "IMAP4::get -  finished" << endl;
}

void
IMAP4Protocol::listDir (const KURL & _url)
{
  kdDebug(7116) << " IMAP4::listDir - " << _url.prettyURL() << endl;

  if (_url.path().isEmpty())
  {
    KURL url = _url;
    url.setPath("/");
    redirection( url );
    finished();
    return;
  }

  TQString myBox, mySequence, myLType, mySection, myValidity, myDelimiter, myInfo;
  // parseURL with caching
  enum IMAP_TYPE myType =
    parseURL (_url, myBox, mySection, myLType, mySequence, myValidity,
      myDelimiter, myInfo, true);

  if (!makeLogin()) return;

  if (myType == ITYPE_DIR || myType == ITYPE_DIR_AND_BOX)
  {
    TQString listStr = myBox;
    imapCommand *cmd;

    if (!listStr.isEmpty () && !listStr.endsWith(myDelimiter) &&
        mySection != "FOLDERONLY")
      listStr += myDelimiter;

    if (mySection.isEmpty())
    {
      listStr += "%";
    } else if (mySection == "COMPLETE") {
      listStr += "*";
    }
    kdDebug(7116) << "IMAP4Protocol::listDir - listStr=" << listStr << endl;
    cmd =
      doCommand (imapCommand::clientList ("", listStr,
            (myLType == "LSUB" || myLType == "LSUBNOCHECK")));
    if (cmd->result () == "OK")
    {
      TQString mailboxName;
      UDSEntry entry;
      UDSAtom atom;
      KURL aURL = _url;
      if (aURL.path().find(';') != -1)
        aURL.setPath(aURL.path().left(aURL.path().find(';')));

      kdDebug(7116) << "IMAP4Protocol::listDir - got " << listResponses.count () << endl;

      if (myLType == "LSUB")
      {
        // fire the same command as LIST to check if the box really exists
        TQValueList<imapList> listResponsesSave = listResponses;
        doCommand (imapCommand::clientList ("", listStr, false));
        for (TQValueListIterator < imapList > it = listResponsesSave.begin ();
            it != listResponsesSave.end (); ++it)
        {
          bool boxOk = false;
          for (TQValueListIterator < imapList > it2 = listResponses.begin ();
              it2 != listResponses.end (); ++it2)
          {
            if ((*it2).name() == (*it).name())
            {
              boxOk = true;
              // copy the flags from the LIST-command
              (*it) = (*it2);
              break;
            }
          }
          if (boxOk)
            doListEntry (aURL, myBox, (*it), (mySection != "FOLDERONLY"));
          else // this folder is dead
            kdDebug(7116) << "IMAP4Protocol::listDir - suppress " << (*it).name() << endl;
        }
        listResponses = listResponsesSave;
      }
      else // LIST or LSUBNOCHECK
      {
        for (TQValueListIterator < imapList > it = listResponses.begin ();
            it != listResponses.end (); ++it)
        {
          doListEntry (aURL, myBox, (*it), (mySection != "FOLDERONLY"));
        }
      }
      entry.clear ();
      listEntry (entry, true);
    }
    else
    {
      error (ERR_CANNOT_ENTER_DIRECTORY, _url.prettyURL());
      completeQueue.removeRef (cmd);
      return;
    }
    completeQueue.removeRef (cmd);
  }
  if ((myType == ITYPE_BOX || myType == ITYPE_DIR_AND_BOX)
      && myLType != "LIST" && myLType != "LSUB" && myLType != "LSUBNOCHECK")
  {
    KURL aURL = _url;
    aURL.setQuery (TQString());
    const TQString encodedUrl = aURL.url(0, 106); // utf-8

    if (!_url.query ().isEmpty ())
    {
      TQString query = KURL::decode_string (_url.query ());
      query = query.right (query.length () - 1);
      if (!query.isEmpty())
      {
        imapCommand *cmd = NULL;

        if (!assureBox (myBox, true)) return;

        if (!selectInfo.countAvailable() || selectInfo.count())
        {
          cmd = doCommand (imapCommand::clientSearch (query));
          if (cmd->result() != "OK")
          {
            error(ERR_UNSUPPORTED_ACTION, _url.prettyURL());
            completeQueue.removeRef (cmd);
            return;
          }
          completeQueue.removeRef (cmd);

          TQStringList list = getResults ();
          int stretch = 0;

          if (selectInfo.uidNextAvailable ())
            stretch = TQString::number(selectInfo.uidNext ()).length ();
          UDSEntry entry;
          imapCache fake;

          for (TQStringList::ConstIterator it = list.begin(); it != list.end();
               ++it)
          {
            fake.setUid((*it).toULong());
            doListEntry (encodedUrl, stretch, &fake);
          }
          entry.clear ();
          listEntry (entry, true);
        }
      }
    }
    else
    {
      if (!assureBox (myBox, true)) return;

      kdDebug(7116) << "IMAP4: select returned:" << endl;
      if (selectInfo.recentAvailable ())
        kdDebug(7116) << "Recent: " << selectInfo.recent () << "d" << endl;
      if (selectInfo.countAvailable ())
        kdDebug(7116) << "Count: " << selectInfo.count () << "d" << endl;
      if (selectInfo.unseenAvailable ())
        kdDebug(7116) << "Unseen: " << selectInfo.unseen () << "d" << endl;
      if (selectInfo.uidValidityAvailable ())
        kdDebug(7116) << "uidValidity: " << selectInfo.uidValidity () << "d" << endl;
      if (selectInfo.flagsAvailable ())
        kdDebug(7116) << "Flags: " << selectInfo.flags () << "d" << endl;
      if (selectInfo.permanentFlagsAvailable ())
        kdDebug(7116) << "PermanentFlags: " << selectInfo.permanentFlags () << "d" << endl;
      if (selectInfo.readWriteAvailable ())
        kdDebug(7116) << "Access: " << (selectInfo.readWrite ()? "Read/Write" : "Read only") << endl;

#ifdef USE_VALIDITY
      if (selectInfo.uidValidityAvailable ()
          && selectInfo.uidValidity () != myValidity.toULong ())
      {
        //redirect
        KURL newUrl = _url;

        newUrl.setPath ("/" + myBox + ";UIDVALIDITY=" +
                        TQString::number(selectInfo.uidValidity ()));
        kdDebug(7116) << "IMAP4::listDir - redirecting to " << newUrl.prettyURL() << endl;
        redirection (newUrl);


      }
      else
#endif
      if (selectInfo.count () > 0)
      {
        int stretch = 0;

        if (selectInfo.uidNextAvailable ())
          stretch = TQString::number(selectInfo.uidNext ()).length ();
        //        kdDebug(7116) << selectInfo.uidNext() << "d used to stretch " << stretch << endl;
        UDSEntry entry;

        if (mySequence.isEmpty()) mySequence = "1:*";

        bool withSubject = mySection.isEmpty();
        if (mySection.isEmpty()) mySection = "UID RFC822.SIZE ENVELOPE";

        bool withFlags = mySection.upper().find("FLAGS") != -1;
        imapCommand *fetch =
          sendCommand (imapCommand::
                       clientFetch (mySequence, mySection));
        imapCache *cache;
        do
        {
          while (!parseLoop ()) ;

          cache = getLastHandled ();

          if (cache && !fetch->isComplete())
            doListEntry (encodedUrl, stretch, cache, withFlags, withSubject);
        }
        while (!fetch->isComplete ());
        entry.clear ();
        listEntry (entry, true);
      }
    }
  }
  if ( !selectInfo.alert().isNull() ) {
    if ( !myBox.isEmpty() ) {
      warning( i18n( "Message from %1 while processing '%2': %3" ).arg( myHost, myBox, selectInfo.alert() ) );
    } else {
      warning( i18n( "Message from %1: %2" ).arg( myHost, TQString(selectInfo.alert()) ) );
    }
    selectInfo.setAlert( 0 );
  }

  kdDebug(7116) << "IMAP4Protocol::listDir - Finishing listDir" << endl;
  finished ();
}

void
IMAP4Protocol::setHost (const TQString & _host, int _port,
                        const TQString & _user, const TQString & _pass)
{
  if (myHost != _host || myPort != _port || myUser != _user || myPass != _pass)
  { // what's the point of doing 4 string compares to avoid 4 string copies?
    // DF: I guess to avoid calling closeConnection() unnecessarily.
    if (!myHost.isEmpty ())
      closeConnection ();
    myHost = _host;
    myPort = _port;
    myUser = _user;
    myPass = _pass;
  }
}

void
IMAP4Protocol::parseRelay (const TQByteArray & buffer)
{
  if (relayEnabled) {
    // relay data immediately
    data( buffer );
    mProcessedSize += buffer.size();
    processedSize( mProcessedSize );
  } else if (cacheOutput)
  {
    // collect data
    if ( !outputBuffer.isOpen() ) {
      outputBuffer.open(IO_WriteOnly);
    }
    outputBuffer.at(outputBufferIndex);
    outputBuffer.writeBlock(buffer, buffer.size());
    outputBufferIndex += buffer.size();
  }
}

void
IMAP4Protocol::parseRelay (ulong len)
{
  if (relayEnabled)
    totalSize (len);
}


bool IMAP4Protocol::parseRead(TQByteArray & buffer, ulong len, ulong relay)
{
  char buf[8192];
  while (buffer.size() < len)
  {
    ssize_t readLen = myRead(buf, TQMIN(len - buffer.size(), sizeof(buf) - 1));
    if (readLen == 0)
    {
      kdDebug(7116) << "parseRead: readLen == 0 - connection broken" << endl;
      error (ERR_CONNECTION_BROKEN, myHost);
      setState(ISTATE_CONNECT);
      closeConnection();
      return FALSE;
    }
    if (relay > buffer.size())
    {
      TQByteArray relayData;
      ssize_t relbuf = relay - buffer.size();
      int currentRelay = TQMIN(relbuf, readLen);
      relayData.setRawData(buf, currentRelay);
      parseRelay(relayData);
      relayData.resetRawData(buf, currentRelay);
    }
    {
      TQBuffer stream (buffer);
      stream.open (IO_WriteOnly);
      stream.at (buffer.size ());
      stream.writeBlock (buf, readLen);
      stream.close ();
    }
  }
  return (buffer.size() == len);
}


bool IMAP4Protocol::parseReadLine (TQByteArray & buffer, ulong relay)
{
  if (myHost.isEmpty()) return FALSE;

  while (true) {
    ssize_t copyLen = 0;
    if (readBufferLen > 0)
    {
      while (copyLen < readBufferLen && readBuffer[copyLen] != '\n') copyLen++;
      if (copyLen < readBufferLen) copyLen++;
      if (relay > 0)
      {
        TQByteArray relayData;

        if (copyLen < (ssize_t) relay)
          relay = copyLen;
        relayData.setRawData (readBuffer, relay);
        parseRelay (relayData);
        relayData.resetRawData (readBuffer, relay);
//        kdDebug(7116) << "relayed : " << relay << "d" << endl;
      }
      // append to buffer
      {
        TQBuffer stream (buffer);

        stream.open (IO_WriteOnly);
        stream.at (buffer.size ());
        stream.writeBlock (readBuffer, copyLen);
        stream.close ();
//        kdDebug(7116) << "appended " << copyLen << "d got now " << buffer.size() << endl;
      }

      readBufferLen -= copyLen;
      if (readBufferLen)
        memmove(readBuffer, &readBuffer[copyLen], readBufferLen);
      if (buffer[buffer.size() - 1] == '\n') return TRUE;
    }
    if (!isConnectionValid())
    {
      kdDebug(7116) << "parseReadLine - connection broken" << endl;
      error (ERR_CONNECTION_BROKEN, myHost);
      setState(ISTATE_CONNECT);
      closeConnection();
      return FALSE;
    }
    if (!waitForResponse( responseTimeout() ))
    {
      error(ERR_SERVER_TIMEOUT, myHost);
      setState(ISTATE_CONNECT);
      closeConnection();
      return FALSE;
    }
    readBufferLen = read(readBuffer, IMAP_BUFFER - 1);
    if (readBufferLen == 0)
    {
      kdDebug(7116) << "parseReadLine: readBufferLen == 0 - connection broken" << endl;
      error (ERR_CONNECTION_BROKEN, myHost);
      setState(ISTATE_CONNECT);
      closeConnection();
      return FALSE;
    }
  }
}

void
IMAP4Protocol::setSubURL (const KURL & _url)
{
  kdDebug(7116) << "IMAP4::setSubURL - " << _url.prettyURL() << endl;
  TDEIO::TCPSlaveBase::setSubURL (_url);
}

void
IMAP4Protocol::put (const KURL & _url, int, bool, bool)
{
  kdDebug(7116) << "IMAP4::put - " << _url.prettyURL() << endl;
//  TDEIO::TCPSlaveBase::put(_url,permissions,overwrite,resume);
  TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
  enum IMAP_TYPE aType =
    parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);

  // see if it is a box
  if (aType != ITYPE_BOX && aType != ITYPE_DIR_AND_BOX)
  {
    if (aBox[aBox.length () - 1] == '/')
      aBox = aBox.right (aBox.length () - 1);
    imapCommand *cmd = doCommand (imapCommand::clientCreate (aBox));

    if (cmd->result () != "OK") {
      error (ERR_COULD_NOT_WRITE, _url.prettyURL());
      completeQueue.removeRef (cmd);
      return;
    }
    completeQueue.removeRef (cmd);
  }
  else
  {
    TQPtrList < TQByteArray > bufferList;
    int length = 0;

    int result;
    // Loop until we got 'dataEnd'
    do
    {
      TQByteArray *buffer = new TQByteArray ();
      dataReq ();               // Request for data
      result = readData (*buffer);
      if (result > 0)
      {
        bufferList.append (buffer);
        length += result;
      } else {
        delete buffer;
      }
    }
    while (result > 0);

    if (result != 0)
    {
      error (ERR_ABORTED, _url.prettyURL());
      return;
    }

    imapCommand *cmd =
      sendCommand (imapCommand::clientAppend (aBox, aSection, length));
    while (!parseLoop ()) ;

    // see if server is waiting
    if (!cmd->isComplete () && !getContinuation ().isEmpty ())
    {
      bool sendOk = true;
      ulong wrote = 0;

      TQByteArray *buffer;
      // send data to server
      while (!bufferList.isEmpty () && sendOk)
      {
        buffer = bufferList.take (0);

        sendOk =
          (write (buffer->data (), buffer->size ()) ==
           (ssize_t) buffer->size ());
        wrote += buffer->size ();
        processedSize(wrote);
        delete buffer;
        if (!sendOk)
        {
          error (ERR_CONNECTION_BROKEN, myHost);
          completeQueue.removeRef (cmd);
          setState(ISTATE_CONNECT);
          closeConnection();
          return;
        }
      }
      parseWriteLine ("");
      // Wait until cmd is complete, or connection breaks.
      while (!cmd->isComplete () && getState() != ISTATE_NO)
        parseLoop ();
      if ( getState() == ISTATE_NO ) {
        // TODO KDE4: pass cmd->resultInfo() as third argument.
        // ERR_CONNECTION_BROKEN expects a host, no way to pass details about the problem.
        error( ERR_CONNECTION_BROKEN, myHost );
        completeQueue.removeRef (cmd);
        closeConnection();
        return;
      }
      else if (cmd->result () != "OK") {
        error( ERR_SLAVE_DEFINED, cmd->resultInfo() );
        completeQueue.removeRef (cmd);
        return;
      }
      else
      {
        if (hasCapability("UIDPLUS"))
        {
          TQString uid = cmd->resultInfo();
          if (uid.find("APPENDUID") != -1)
          {
            uid = uid.section(" ", 2, 2);
            uid.truncate(uid.length()-1);
            infoMessage("UID "+uid);
          }
        }
        // MUST reselect to get the new message
        else if (aBox == getCurrentBox ())
        {
          cmd =
            doCommand (imapCommand::
                       clientSelect (aBox, !selectInfo.readWrite ()));
          completeQueue.removeRef (cmd);
        }
      }
    }
    else
    {
      //error (ERR_COULD_NOT_WRITE, myHost);
      // Better ship the error message, e.g. "Over Quota"
      error (ERR_SLAVE_DEFINED, cmd->resultInfo());
      completeQueue.removeRef (cmd);
      return;
    }

    completeQueue.removeRef (cmd);
  }

  finished ();
}

void
IMAP4Protocol::mkdir (const KURL & _url, int)
{
  kdDebug(7116) << "IMAP4::mkdir - " << _url.prettyURL() << endl;
  TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
  parseURL(_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);
  kdDebug(7116) << "IMAP4::mkdir - create " << aBox << endl;
  imapCommand *cmd = doCommand (imapCommand::clientCreate(aBox));

  if (cmd->result () != "OK")
  {
    kdDebug(7116) << "IMAP4::mkdir - " << cmd->resultInfo() << endl;
    error (ERR_COULD_NOT_MKDIR, _url.prettyURL());
    completeQueue.removeRef (cmd);
    return;
  }
  completeQueue.removeRef (cmd);

  // start a new listing to find the type of the folder
  enum IMAP_TYPE type =
    parseURL(_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);
  if (type == ITYPE_BOX)
  {
    bool ask = ( aInfo.find( "ASKUSER" ) != -1 );
    if ( ask &&
        messageBox(QuestionYesNo,
          i18n("The following folder will be created on the server: %1 "
               "What do you want to store in this folder?").arg( aBox ),
          i18n("Create Folder"),
          i18n("&Messages"), i18n("&Subfolders")) == KMessageBox::No )
    {
      cmd = doCommand(imapCommand::clientDelete(aBox));
      completeQueue.removeRef (cmd);
      cmd = doCommand(imapCommand::clientCreate(aBox + aDelimiter));
      if (cmd->result () != "OK")
      {
        error (ERR_COULD_NOT_MKDIR, _url.prettyURL());
        completeQueue.removeRef (cmd);
        return;
      }
      completeQueue.removeRef (cmd);
    }
  }

  cmd = doCommand(imapCommand::clientSubscribe(aBox));
  completeQueue.removeRef(cmd);

  finished ();
}

void
IMAP4Protocol::copy (const KURL & src, const KURL & dest, int, bool overwrite)
{
  kdDebug(7116) << "IMAP4::copy - [" << (overwrite ? "Overwrite" : "NoOverwrite") << "] " << src.prettyURL() << " -> " << dest.prettyURL() << endl;
  TQString sBox, sSequence, sLType, sSection, sValidity, sDelimiter, sInfo;
  TQString dBox, dSequence, dLType, dSection, dValidity, dDelimiter, dInfo;
  enum IMAP_TYPE sType =
    parseURL (src, sBox, sSection, sLType, sSequence, sValidity, sDelimiter, sInfo);
  enum IMAP_TYPE dType =
    parseURL (dest, dBox, dSection, dLType, dSequence, dValidity, dDelimiter, dInfo);

  // see if we have to create anything
  if (dType != ITYPE_BOX && dType != ITYPE_DIR_AND_BOX)
  {
    // this might be konqueror
    int sub = dBox.find (sBox);

    // might be moving to upper folder
    if (sub > 0)
    {
      KURL testDir = dest;

      TQString subDir = dBox.right (dBox.length () - dBox.findRev ('/'));
      TQString topDir = dBox.left (sub);
      testDir.setPath ("/" + topDir);
      dType =
        parseURL (testDir, topDir, dSection, dLType, dSequence, dValidity,
          dDelimiter, dInfo);

      kdDebug(7116) << "IMAP4::copy - checking this destination " << topDir << endl;
      // see if this is what the user wants
      if (dType == ITYPE_BOX || dType == ITYPE_DIR_AND_BOX)
      {
        kdDebug(7116) << "IMAP4::copy - assuming this destination " << topDir << endl;
        dBox = topDir;
      }
      else
      {

        // maybe if we create a new mailbox
        topDir = "/" + topDir + subDir;
        testDir.setPath (topDir);
        kdDebug(7116) << "IMAP4::copy - checking this destination " << topDir << endl;
        dType =
          parseURL (testDir, topDir, dSection, dLType, dSequence, dValidity,
            dDelimiter, dInfo);
        if (dType != ITYPE_BOX && dType != ITYPE_DIR_AND_BOX)
        {
          // ok then we'll create a mailbox
          imapCommand *cmd = doCommand (imapCommand::clientCreate (topDir));

          // on success we'll use it, else we'll just try to create the given dir
          if (cmd->result () == "OK")
          {
            kdDebug(7116) << "IMAP4::copy - assuming this destination " << topDir << endl;
            dType = ITYPE_BOX;
            dBox = topDir;
          }
          else
          {
            completeQueue.removeRef (cmd);
            cmd = doCommand (imapCommand::clientCreate (dBox));
            if (cmd->result () == "OK")
              dType = ITYPE_BOX;
            else
              error (ERR_COULD_NOT_WRITE, dest.prettyURL());
          }
          completeQueue.removeRef (cmd);
        }
      }

    }
  }
  if (sType == ITYPE_MSG || sType == ITYPE_BOX || sType == ITYPE_DIR_AND_BOX)
  {
    //select the source box
    if (!assureBox(sBox, true)) return;
    kdDebug(7116) << "IMAP4::copy - " << sBox << " -> " << dBox << endl;

    //issue copy command
    imapCommand *cmd =
      doCommand (imapCommand::clientCopy (dBox, sSequence));
    if (cmd->result () != "OK")
    {
      kdError(5006) << "IMAP4::copy - " << cmd->resultInfo() << endl;
      error (ERR_COULD_NOT_WRITE, dest.prettyURL());
      completeQueue.removeRef (cmd);
      return;
    } else {
      if (hasCapability("UIDPLUS"))
      {
        TQString uid = cmd->resultInfo();
        if (uid.find("COPYUID") != -1)
        {
          uid = uid.section(" ", 2, 3);
          uid.truncate(uid.length()-1);
          infoMessage("UID "+uid);
        }
      }
    }
    completeQueue.removeRef (cmd);
  }
  else
  {
    error (ERR_ACCESS_DENIED, src.prettyURL());
    return;
  }
  finished ();
}

void
IMAP4Protocol::del (const KURL & _url, bool isFile)
{
  kdDebug(7116) << "IMAP4::del - [" << (isFile ? "File" : "NoFile") << "] " << _url.prettyURL() << endl;
  TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
  enum IMAP_TYPE aType =
    parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);

  switch (aType)
  {
  case ITYPE_BOX:
  case ITYPE_DIR_AND_BOX:
    if (!aSequence.isEmpty ())
    {
      if (aSequence == "*")
      {
        if (!assureBox (aBox, false)) return;
        imapCommand *cmd = doCommand (imapCommand::clientExpunge ());
        if (cmd->result () != "OK") {
          error (ERR_CANNOT_DELETE, _url.prettyURL());
          completeQueue.removeRef (cmd);
          return;
        }
        completeQueue.removeRef (cmd);
      }
      else
      {
        // if open for read/write
        if (!assureBox (aBox, false)) return;
        imapCommand *cmd =
          doCommand (imapCommand::
                     clientStore (aSequence, "+FLAGS.SILENT", "\\DELETED"));
        if (cmd->result () != "OK") {
          error (ERR_CANNOT_DELETE, _url.prettyURL());
          completeQueue.removeRef (cmd);
          return;
        }
        completeQueue.removeRef (cmd);
      }
    }
    else
    {
      if (getCurrentBox() == aBox)
      {
        imapCommand *cmd = doCommand(imapCommand::clientClose());
        completeQueue.removeRef(cmd);
        setState(ISTATE_LOGIN);
      }
      // We unsubscribe, otherwise we get ghost folders on UW-IMAP
      imapCommand *cmd = doCommand(imapCommand::clientUnsubscribe(aBox));
      completeQueue.removeRef(cmd);
      cmd = doCommand(imapCommand::clientDelete (aBox));
      // If this doesn't work, we try to empty the mailbox first
      if (cmd->result () != "OK")
      {
        completeQueue.removeRef(cmd);
        if (!assureBox(aBox, false)) return;
        bool stillOk = true;
        if (stillOk)
        {
          imapCommand *cmd = doCommand(
            imapCommand::clientStore("1:*", "+FLAGS.SILENT", "\\DELETED"));
          if (cmd->result () != "OK") stillOk = false;
          completeQueue.removeRef(cmd);
        }
        if (stillOk)
        {
          imapCommand *cmd = doCommand(imapCommand::clientClose());
          if (cmd->result () != "OK") stillOk = false;
          completeQueue.removeRef(cmd);
          setState(ISTATE_LOGIN);
        }
        if (stillOk)
        {
          imapCommand *cmd = doCommand (imapCommand::clientDelete(aBox));
          if (cmd->result () != "OK") stillOk = false;
          completeQueue.removeRef(cmd);
        }
        if (!stillOk)
        {
          error (ERR_COULD_NOT_RMDIR, _url.prettyURL());
          return;
        }
      } else {
        completeQueue.removeRef (cmd);
      }
    }
    break;

  case ITYPE_DIR:
    {
      imapCommand *cmd = doCommand (imapCommand::clientDelete (aBox));
      if (cmd->result () != "OK") {
        error (ERR_COULD_NOT_RMDIR, _url.prettyURL());
        completeQueue.removeRef (cmd);
        return;
      }
      completeQueue.removeRef (cmd);
    }
    break;

  case ITYPE_MSG:
    {
      // if open for read/write
      if (!assureBox (aBox, false)) return;
      imapCommand *cmd =
        doCommand (imapCommand::
                   clientStore (aSequence, "+FLAGS.SILENT", "\\DELETED"));
      if (cmd->result () != "OK") {
        error (ERR_CANNOT_DELETE, _url.prettyURL());
        completeQueue.removeRef (cmd);
        return;
      }
      completeQueue.removeRef (cmd);
    }
    break;

  case ITYPE_UNKNOWN:
  case ITYPE_ATTACH:
    error (ERR_CANNOT_DELETE, _url.prettyURL());
    break;
  }
  finished ();
}

/*
 * Copy a mail: data = 'C' + srcURL (KURL) + destURL (KURL)
 * Capabilities: data = 'c'. Result shipped in infoMessage() signal
 * No-op: data = 'N'
 * Namespace: data = 'n'. Result shipped in infoMessage() signal
 *                        The format is: section=namespace=delimiter
 *                        Note that the namespace can be empty
 * Unsubscribe: data = 'U' + URL (KURL)
 * Subscribe: data = 'u' + URL (KURL)
 * Change the status: data = 'S' + URL (KURL) + Flags (TQCString)
 * ACL commands: data = 'A' + command + URL (KURL) + command-dependent args
 * AnnotateMore commands: data = 'M' + 'G'et/'S'et + URL + entry + command-dependent args
 * Search: data = 'E' + URL (KURL)
 * Quota commands: data = 'Q' + 'R'oot/'G'et/'S'et + URL + entry + command-dependent args
 * Custom command: data = 'X' + 'N'ormal/'E'xtended + command + command-dependent args
 */
void
IMAP4Protocol::special (const TQByteArray & aData)
{
  kdDebug(7116) << "IMAP4Protocol::special" << endl;
  if (!makeLogin()) return;

  TQDataStream stream(aData, IO_ReadOnly);

  int tmp;
  stream >> tmp;

  switch (tmp) {
  case 'C':
  {
    // copy
    KURL src;
    KURL dest;
    stream >> src >> dest;
    copy(src, dest, 0, FALSE);
    break;
  }
  case 'c':
  {
    // capabilities
    infoMessage(imapCapabilities.join(" "));
    finished();
    break;
  }
  case 'N':
  {
    // NOOP
    imapCommand *cmd = doCommand(imapCommand::clientNoop());
    if (cmd->result () != "OK")
    {
      kdDebug(7116) << "NOOP did not succeed - connection broken" << endl;
      completeQueue.removeRef (cmd);
      error (ERR_CONNECTION_BROKEN, myHost);
      return;
    }
    completeQueue.removeRef (cmd);
    finished();
    break;
  }
  case 'n':
  {
    // namespace in the form "section=namespace=delimiter"
    // entries are separated by ,
    infoMessage( imapNamespaces.join(",") );
    finished();
    break;
  }
  case 'U':
  {
    // unsubscribe
    KURL _url;
    stream >> _url;
    TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
    parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);
    imapCommand *cmd = doCommand(imapCommand::clientUnsubscribe(aBox));
    if (cmd->result () != "OK")
    {
      completeQueue.removeRef (cmd);
      error(ERR_SLAVE_DEFINED, i18n("Unsubscribe of folder %1 "
                                    "failed. The server returned: %2")
            .arg(_url.prettyURL())
            .arg(cmd->resultInfo()));
      return;
    }
    completeQueue.removeRef (cmd);
    finished();
    break;
  }
  case 'u':
  {
    // subscribe
    KURL _url;
    stream >> _url;
    TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
    parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);
    imapCommand *cmd = doCommand(imapCommand::clientSubscribe(aBox));
    if (cmd->result () != "OK")
    {
      completeQueue.removeRef (cmd);
      error(ERR_SLAVE_DEFINED, i18n("Subscribe of folder %1 "
                                    "failed. The server returned: %2")
            .arg(_url.prettyURL())
            .arg(cmd->resultInfo()));
      return;
    }
    completeQueue.removeRef (cmd);
    finished();
    break;
  }
  case 'A':
  {
    // acl
    int cmd;
    stream >> cmd;
    if ( hasCapability( "ACL" ) ) {
      specialACLCommand( cmd, stream );
    } else {
      error( ERR_UNSUPPORTED_ACTION, "ACL" );
    }
    break;
  }
  case 'M':
  {
    // annotatemore
    int cmd;
    stream >> cmd;
    if ( hasCapability( "ANNOTATEMORE" ) ) {
      specialAnnotateMoreCommand( cmd, stream );
    } else {
      error( ERR_UNSUPPORTED_ACTION, "ANNOTATEMORE" );
    }
    break;
  }
  case 'Q':
  {
    // quota
    int cmd;
    stream >> cmd;
    if ( hasCapability( "QUOTA" ) ) {
      specialQuotaCommand( cmd, stream );
    } else {
      error( ERR_UNSUPPORTED_ACTION, "QUOTA" );
    }
    break;
  }
  case 'S':
  {
    // status
    KURL _url;
    TQCString newFlags;
    stream >> _url >> newFlags;

    TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
    parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);
    if (!assureBox(aBox, false)) return;

    // make sure we only touch flags we know
    TQCString knownFlags = "\\SEEN \\ANSWERED \\FLAGGED \\DRAFT";
    const imapInfo info = getSelected();
    if ( info.permanentFlagsAvailable() && (info.permanentFlags() & imapInfo::User) ) {
      knownFlags += " KMAILFORWARDED KMAILTODO KMAILWATCHED KMAILIGNORED $FORWARDED $TODO $WATCHED $IGNORED";
    }

    imapCommand *cmd = doCommand (imapCommand::
                                  clientStore (aSequence, "-FLAGS.SILENT", knownFlags));
    if (cmd->result () != "OK")
    {
      completeQueue.removeRef (cmd);
      error(ERR_COULD_NOT_WRITE, i18n("Changing the flags of message %1 "
                                      "failed.").arg(_url.prettyURL()));
      return;
    }
    completeQueue.removeRef (cmd);
    if (!newFlags.isEmpty())
    {
      cmd = doCommand (imapCommand::
                       clientStore (aSequence, "+FLAGS.SILENT", newFlags));
      if (cmd->result () != "OK")
      {
        completeQueue.removeRef (cmd);
        error(ERR_COULD_NOT_WRITE, i18n("Changing the flags of message %1 "
                                        "failed.").arg(_url.prettyURL()));
        return;
      }
      completeQueue.removeRef (cmd);
    }
    finished();
    break;
  }
  case 's':
  {
    // seen
    KURL _url;
    bool seen;
    TQCString newFlags;
    stream >> _url >> seen;

    TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
    parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);
    if ( !assureBox(aBox, true) ) // read-only because changing SEEN should be possible even then
      return;

    imapCommand *cmd;
    if ( seen )
      cmd = doCommand( imapCommand::clientStore( aSequence, "+FLAGS.SILENT", "\\SEEN" ) );
    else
      cmd = doCommand( imapCommand::clientStore( aSequence, "-FLAGS.SILENT", "\\SEEN" ) );

    if (cmd->result () != "OK")
    {
      completeQueue.removeRef (cmd);
      error(ERR_COULD_NOT_WRITE, i18n("Changing the flags of message %1 "
                                      "failed.").arg(_url.prettyURL()));
      return;
    }
    completeQueue.removeRef (cmd);
    finished();
    break;
  }

  case 'E':
  {
    // search
    specialSearchCommand( stream );
    break;
  }
  case 'X':
  {
    // custom command
    specialCustomCommand( stream );
    break;
  }
  default:
    kdWarning(7116) << "Unknown command in special(): " << tmp << endl;
    error( ERR_UNSUPPORTED_ACTION, TQString(TQChar(tmp)) );
    break;
  }
}

void
IMAP4Protocol::specialACLCommand( int command, TQDataStream& stream )
{
  // All commands start with the URL to the box
  KURL _url;
  stream >> _url;
  TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
  parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);

  switch( command ) {
  case 'S': // SETACL
  {
    TQString user, acl;
    stream >> user >> acl;
    kdDebug(7116) << "SETACL " << aBox << " " << user << " " << acl << endl;
    imapCommand *cmd = doCommand(imapCommand::clientSetACL(aBox, user, acl));
    if (cmd->result () != "OK")
    {
      error(ERR_SLAVE_DEFINED, i18n("Setting the Access Control List on folder %1 "
                                      "for user %2 failed. The server returned: %3")
            .arg(_url.prettyURL())
            .arg(user)
            .arg(cmd->resultInfo()));
      return;
    }
    completeQueue.removeRef (cmd);
    finished();
    break;
  }
  case 'D': // DELETEACL
  {
    TQString user;
    stream >> user;
    kdDebug(7116) << "DELETEACL " << aBox << " " << user << endl;
    imapCommand *cmd = doCommand(imapCommand::clientDeleteACL(aBox, user));
    if (cmd->result () != "OK")
    {
      error(ERR_SLAVE_DEFINED, i18n("Deleting the Access Control List on folder %1 "
                                    "for user %2 failed. The server returned: %3")
            .arg(_url.prettyURL())
            .arg(user)
            .arg(cmd->resultInfo()));
      return;
    }
    completeQueue.removeRef (cmd);
    finished();
    break;
  }
  case 'G': // GETACL
  {
    kdDebug(7116) << "GETACL " << aBox << endl;
    imapCommand *cmd = doCommand(imapCommand::clientGetACL(aBox));
    if (cmd->result () != "OK")
    {
      error(ERR_SLAVE_DEFINED, i18n("Retrieving the Access Control List on folder %1 "
                                     "failed. The server returned: %2")
            .arg(_url.prettyURL())
            .arg(cmd->resultInfo()));
      return;
    }
    // Returning information to the application from a special() command isn't easy.
    // I'm reusing the infoMessage trick seen above (for capabilities), but this
    // limits me to a string instead of a stringlist. Using DQUOTE as separator,
    // because it's forbidden in userids by rfc3501
    kdDebug(7116) << getResults() << endl;
    infoMessage(getResults().join( "\"" ));
    finished();
    break;
  }
  case 'L': // LISTRIGHTS
  {
    // Do we need this one? It basically shows which rights are tied together, but that's all?
    error( ERR_UNSUPPORTED_ACTION, TQString(TQChar(command)) );
    break;
  }
  case 'M': // MYRIGHTS
  {
    kdDebug(7116) << "MYRIGHTS " << aBox << endl;
    imapCommand *cmd = doCommand(imapCommand::clientMyRights(aBox));
    if (cmd->result () != "OK")
    {
      error(ERR_SLAVE_DEFINED, i18n("Retrieving the Access Control List on folder %1 "
                                    "failed. The server returned: %2")
            .arg(_url.prettyURL())
            .arg(cmd->resultInfo()));
      return;
    }
    TQStringList lst = getResults();
    kdDebug(7116) << "myrights results: " << lst << endl;
    if ( !lst.isEmpty() ) {
      Q_ASSERT( lst.count() == 1 );
      infoMessage( lst.first() );
    }
    finished();
    break;
  }
  default:
    kdWarning(7116) << "Unknown special ACL command:" << command << endl;
    error( ERR_UNSUPPORTED_ACTION, TQString(TQChar(command)) );
  }
}

void
IMAP4Protocol::specialSearchCommand( TQDataStream& stream )
{
  kdDebug(7116) << "IMAP4Protocol::specialSearchCommand" << endl;
  KURL _url;
  stream >> _url;
  TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
  parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);
  if (!assureBox(aBox, false)) return;

  imapCommand *cmd = doCommand (imapCommand::clientSearch( aSection ));
  if (cmd->result () != "OK")
  {
    error(ERR_SLAVE_DEFINED, i18n("Searching of folder %1 "
          "failed. The server returned: %2")
        .arg(aBox)
        .arg(cmd->resultInfo()));
    return;
  }
  completeQueue.removeRef(cmd);
  TQStringList lst = getResults();
  kdDebug(7116) << "IMAP4Protocol::specialSearchCommand '" << aSection <<
    "' returns " << lst << endl;
  infoMessage( lst.join( " " ) );

  finished();
}

void
IMAP4Protocol::specialCustomCommand( TQDataStream& stream )
{
  kdDebug(7116) << "IMAP4Protocol::specialCustomCommand" << endl;

  TQString command, arguments;
  int type;
  stream >> type;
  stream >> command >> arguments;

  /**
   * In 'normal' mode we send the command with all information in one go
   * and retrieve the result.
   */
  if ( type == 'N' ) {
    kdDebug(7116) << "IMAP4Protocol::specialCustomCommand: normal mode" << endl;
    imapCommand *cmd = doCommand (imapCommand::clientCustom( command, arguments ));
    if (cmd->result () != "OK")
    {
      error(ERR_SLAVE_DEFINED, i18n("Custom command %1:%2 "
            "failed. The server returned: %3")
          .arg(command)
          .arg(arguments)
          .arg(cmd->resultInfo()));
      return;
    }
    completeQueue.removeRef(cmd);
    TQStringList lst = getResults();
    kdDebug(7116) << "IMAP4Protocol::specialCustomCommand '" << command <<
      ":" << arguments <<
      "' returns " << lst << endl;
    infoMessage( lst.join( " " ) );

    finished();
  } else
  /**
   * In 'extended' mode we send a first header and push the data of the request in
   * streaming mode.
   */
  if ( type == 'E' ) {
    kdDebug(7116) << "IMAP4Protocol::specialCustomCommand: extended mode" << endl;
    imapCommand *cmd = sendCommand (imapCommand::clientCustom( command, TQString() ));
    while ( !parseLoop () ) ;

    // see if server is waiting
    if (!cmd->isComplete () && !getContinuation ().isEmpty ())
    {
      const TQByteArray buffer = arguments.utf8();

      // send data to server
      bool sendOk = (write (buffer.data (), buffer.size ()) == (ssize_t)buffer.size ());
      processedSize( buffer.size() );

      if ( !sendOk ) {
        error ( ERR_CONNECTION_BROKEN, myHost );
        completeQueue.removeRef ( cmd );
        setState(ISTATE_CONNECT);
        closeConnection();
        return;
      }
    }
    parseWriteLine ("");

    do
    {
      while (!parseLoop ()) ;
    }
    while (!cmd->isComplete ());

    completeQueue.removeRef (cmd);

    TQStringList lst = getResults();
    kdDebug(7116) << "IMAP4Protocol::specialCustomCommand: returns " << lst << endl;
    infoMessage( lst.join( " " ) );

    finished ();
  }
}

void
IMAP4Protocol::specialAnnotateMoreCommand( int command, TQDataStream& stream )
{
  // All commands start with the URL to the box
  KURL _url;
  stream >> _url;
  TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
  parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);

  switch( command ) {
  case 'S': // SETANNOTATION
  {
    // Params:
    //  KURL URL of the mailbox
    //  TQString entry (should be an actual entry name, no % or *; empty for server entries)
    //  TQMap<TQString,TQString> attributes (name and value)
    TQString entry;
    TQMap<TQString, TQString> attributes;
    stream >> entry >> attributes;
    kdDebug(7116) << "SETANNOTATION " << aBox << " " << entry << " " << attributes.count() << " attributes" << endl;
    imapCommand *cmd = doCommand(imapCommand::clientSetAnnotation(aBox, entry, attributes));
    if (cmd->result () != "OK")
    {
      error(ERR_SLAVE_DEFINED, i18n("Setting the annotation %1 on folder %2 "
                                    " failed. The server returned: %3")
            .arg(entry)
            .arg(_url.prettyURL())
            .arg(cmd->resultInfo()));
      return;
    }
    completeQueue.removeRef (cmd);
    finished();
    break;
  }
  case 'G': // GETANNOTATION.
  {
    // Params:
    //  KURL URL of the mailbox
    //  TQString entry (should be an actual entry name, no % or *; empty for server entries)
    //  TQStringList attributes (list of attributes to be retrieved, possibly with % or *)
    TQString entry;
    TQStringList attributeNames;
    stream >> entry >> attributeNames;
    kdDebug(7116) << "GETANNOTATION " << aBox << " " << entry << " " << attributeNames << endl;
    imapCommand *cmd = doCommand(imapCommand::clientGetAnnotation(aBox, entry, attributeNames));
    if (cmd->result () != "OK")
    {
      error(ERR_SLAVE_DEFINED, i18n("Retrieving the annotation %1 on folder %2 "
                                     "failed. The server returned: %3")
            .arg(entry)
            .arg(_url.prettyURL())
            .arg(cmd->resultInfo()));
      return;
    }
    // Returning information to the application from a special() command isn't easy.
    // I'm reusing the infoMessage trick seen above (for capabilities and acls), but this
    // limits me to a string instead of a stringlist. Let's use \r as separator.
    kdDebug(7116) << getResults() << endl;
    infoMessage(getResults().join( "\r" ));
    finished();
    break;
  }
  default:
    kdWarning(7116) << "Unknown special annotate command:" << command << endl;
    error( ERR_UNSUPPORTED_ACTION, TQString(TQChar(command)) );
  }
}

void
IMAP4Protocol::specialQuotaCommand( int command, TQDataStream& stream )
{
  // All commands start with the URL to the box
  KURL _url;
  stream >> _url;
  TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
  parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter, aInfo);

  switch( command ) {
    case 'R': // GETQUOTAROOT
      {
        kdDebug(7116) << "QUOTAROOT " << aBox << endl;
        imapCommand *cmd = doCommand(imapCommand::clientGetQuotaroot( aBox ) );
        if (cmd->result () != "OK")
        {
          error(ERR_SLAVE_DEFINED, i18n("Retrieving the quota root information on folder %1 "
                "failed. The server returned: %2")
              .arg(_url.prettyURL())
              .arg(cmd->resultInfo()));
          return;
        }
        infoMessage(getResults().join( "\r" ));
        finished();
        break;
      }
    case 'G': // GETQUOTA
      {
        kdDebug(7116) << "GETQUOTA command" << endl;
        kdWarning(7116) << "UNIMPLEMENTED" << endl;
        break;
      }
    case 'S': // SETQUOTA
      {
        kdDebug(7116) << "SETQUOTA command" << endl;
        kdWarning(7116) << "UNIMPLEMENTED" << endl;
        break;
      }
    default:
      kdWarning(7116) << "Unknown special quota command:" << command << endl;
      error( ERR_UNSUPPORTED_ACTION, TQString(TQChar(command)) );
  }
}

void
IMAP4Protocol::rename (const KURL & src, const KURL & dest, bool overwrite)
{
  kdDebug(7116) << "IMAP4::rename - [" << (overwrite ? "Overwrite" : "NoOverwrite") << "] " << src.prettyURL() << " -> " << dest.prettyURL() << endl;
  TQString sBox, sSequence, sLType, sSection, sValidity, sDelimiter, sInfo;
  TQString dBox, dSequence, dLType, dSection, dValidity, dDelimiter, dInfo;
  enum IMAP_TYPE sType =
    parseURL (src, sBox, sSection, sLType, sSequence, sValidity, sDelimiter, sInfo, false);
  enum IMAP_TYPE dType =
    parseURL (dest, dBox, dSection, dLType, dSequence, dValidity, dDelimiter, dInfo, false);

  if (dType == ITYPE_UNKNOWN)
  {
    switch (sType)
    {
    case ITYPE_BOX:
    case ITYPE_DIR:
    case ITYPE_DIR_AND_BOX:
      {
        if (getState() == ISTATE_SELECT && sBox == getCurrentBox())
        {
          kdDebug(7116) << "IMAP4::rename - close " << getCurrentBox() << endl;
          // mailbox can only be renamed if it is closed
          imapCommand *cmd = doCommand (imapCommand::clientClose());
          bool ok = cmd->result() == "OK";
          completeQueue.removeRef(cmd);
          if (!ok)
          {
            kdWarning(7116) << "Unable to close mailbox!" << endl;
            error(ERR_CANNOT_RENAME, src.path());
            return;
          }
          setState(ISTATE_LOGIN);
        }
        imapCommand *cmd = doCommand (imapCommand::clientRename (sBox, dBox));
        if (cmd->result () != "OK") {
          error (ERR_CANNOT_RENAME, src.path());
          completeQueue.removeRef (cmd);
          return;
        }
        completeQueue.removeRef (cmd);
      }
      break;

    case ITYPE_MSG:
    case ITYPE_ATTACH:
    case ITYPE_UNKNOWN:
      error (ERR_CANNOT_RENAME, src.path());
      break;
    }
  }
  else
  {
    error (ERR_CANNOT_RENAME, src.path());
    return;
  }
  finished ();
}

void
IMAP4Protocol::slave_status ()
{
  bool connected = (getState() != ISTATE_NO) && isConnectionValid();
  kdDebug(7116) << "IMAP4::slave_status " << connected << endl;
  slaveStatus ( connected ? myHost : TQString(), connected );
}

void
IMAP4Protocol::dispatch (int command, const TQByteArray & data)
{
  kdDebug(7116) << "IMAP4::dispatch - command=" << command << endl;
  TDEIO::TCPSlaveBase::dispatch (command, data);
}

void
IMAP4Protocol::stat (const KURL & _url)
{
  kdDebug(7116) << "IMAP4::stat - " << _url.prettyURL() << endl;
  TQString aBox, aSequence, aLType, aSection, aValidity, aDelimiter, aInfo;
  // parseURL with caching
  enum IMAP_TYPE aType =
    parseURL (_url, aBox, aSection, aLType, aSequence, aValidity, aDelimiter,
        aInfo, true);

  UDSEntry entry;
  UDSAtom atom;

  atom.m_uds = UDS_NAME;
  atom.m_str = aBox;
  entry.append (atom);

  if (!aSection.isEmpty())
  {
    if (getState() == ISTATE_SELECT && aBox == getCurrentBox())
    {
      imapCommand *cmd = doCommand (imapCommand::clientClose());
      bool ok = cmd->result() == "OK";
      completeQueue.removeRef(cmd);
      if (!ok)
      {
        error(ERR_COULD_NOT_STAT, aBox);
        return;
      }
      setState(ISTATE_LOGIN);
    }
    bool ok = false;
    TQString cmdInfo;
    if (aType == ITYPE_MSG || aType == ITYPE_ATTACH)
      ok = true;
    else
    {
      imapCommand *cmd = doCommand(imapCommand::clienStatus(aBox, aSection));
      ok = cmd->result() == "OK";
      cmdInfo = cmd->resultInfo();
      completeQueue.removeRef(cmd);
    }
    if (!ok)
    {
      bool found = false;
      imapCommand *cmd = doCommand (imapCommand::clientList ("", aBox));
      if (cmd->result () == "OK")
      {
        for (TQValueListIterator < imapList > it = listResponses.begin ();
             it != listResponses.end (); ++it)
        {
          if (aBox == (*it).name ()) found = true;
        }
      }
      completeQueue.removeRef (cmd);
      if (found)
        error(ERR_COULD_NOT_STAT, aBox);
      else
        error(TDEIO::ERR_DOES_NOT_EXIST, aBox);
      return;
    }
    if ((aSection == "UIDNEXT" && geStatus().uidNextAvailable())
      || (aSection == "UNSEEN" && geStatus().unseenAvailable()))
    {
      atom.m_uds = UDS_SIZE;
      atom.m_str = TQString();
      atom.m_long = (aSection == "UIDNEXT") ? geStatus().uidNext()
        : geStatus().unseen();
      entry.append(atom);
    }
  } else
  if (aType == ITYPE_BOX || aType == ITYPE_DIR_AND_BOX || aType == ITYPE_MSG ||
      aType == ITYPE_ATTACH)
  {
    ulong validity = 0;
    // see if the box is already in select/examine state
    if (aBox == getCurrentBox ())
      validity = selectInfo.uidValidity ();
    else
    {
      // do a status lookup on the box
      // only do this if the box is not selected
      // the server might change the validity for new select/examine
      imapCommand *cmd =
        doCommand (imapCommand::clienStatus (aBox, "UIDVALIDITY"));
      completeQueue.removeRef (cmd);
      validity = geStatus ().uidValidity ();
    }
    validity = 0;               // temporary

    if (aType == ITYPE_BOX || aType == ITYPE_DIR_AND_BOX)
    {
      // has no or an invalid uidvalidity
      if (validity > 0 && validity != aValidity.toULong ())
      {
        //redirect
        KURL newUrl = _url;

        newUrl.setPath ("/" + aBox + ";UIDVALIDITY=" +
                        TQString::number(validity));
        kdDebug(7116) << "IMAP4::stat - redirecting to " << newUrl.prettyURL() << endl;
        redirection (newUrl);
      }
    }
    else if (aType == ITYPE_MSG || aType == ITYPE_ATTACH)
    {
      //must determine if this message exists
      //cause konqueror will check this on paste operations

      // has an invalid uidvalidity
      // or no messages in box
      if (validity > 0 && validity != aValidity.toULong ())
      {
        aType = ITYPE_UNKNOWN;
        kdDebug(7116) << "IMAP4::stat - url has invalid validity [" << validity << "d] " << _url.prettyURL() << endl;
      }
    }
  }

  atom.m_uds = UDS_MIME_TYPE;
  atom.m_str = getMimeType (aType);
  entry.append (atom);

  kdDebug(7116) << "IMAP4: stat: " << atom.m_str << endl;
  switch (aType)
  {
  case ITYPE_DIR:
    atom.m_uds = UDS_FILE_TYPE;
    atom.m_str = TQString();
    atom.m_long = S_IFDIR;
    entry.append (atom);
    break;

  case ITYPE_BOX:
  case ITYPE_DIR_AND_BOX:
    atom.m_uds = UDS_FILE_TYPE;
    atom.m_str = TQString();
    atom.m_long = S_IFDIR;
    entry.append (atom);
    break;

  case ITYPE_MSG:
  case ITYPE_ATTACH:
    atom.m_uds = UDS_FILE_TYPE;
    atom.m_str = TQString();
    atom.m_long = S_IFREG;
    entry.append (atom);
    break;

  case ITYPE_UNKNOWN:
    error (ERR_DOES_NOT_EXIST, _url.prettyURL());
    break;
  }

  statEntry (entry);
  kdDebug(7116) << "IMAP4::stat - Finishing stat" << endl;
  finished ();
}

void IMAP4Protocol::openConnection()
{
  if (makeLogin()) connected();
}

void IMAP4Protocol::closeConnection()
{
  if (getState() == ISTATE_NO) return;
  if (getState() == ISTATE_SELECT && metaData("expunge") == "auto")
  {
    imapCommand *cmd = doCommand (imapCommand::clientExpunge());
    completeQueue.removeRef (cmd);
  }
  if (getState() != ISTATE_CONNECT)
  {
    imapCommand *cmd = doCommand (imapCommand::clientLogout());
    completeQueue.removeRef (cmd);
  }
  closeDescriptor();
  setState(ISTATE_NO);
  completeQueue.clear();
  sentQueue.clear();
  lastHandled = 0;
  currentBox = TQString();
  readBufferLen = 0;
}

bool IMAP4Protocol::makeLogin ()
{
  if (getState () == ISTATE_LOGIN || getState () == ISTATE_SELECT)
    return true;

  kdDebug(7116) << "IMAP4::makeLogin - checking login" << endl;
  bool alreadyConnected = getState() == ISTATE_CONNECT;
  kdDebug(7116) << "IMAP4::makeLogin - alreadyConnected " << alreadyConnected << endl;
  if (alreadyConnected || connectToHost (myHost.latin1(), myPort))
  {
//      fcntl (m_iSock, F_SETFL, (fcntl (m_iSock, F_GETFL) | O_NDELAY));

    setState(ISTATE_CONNECT);

    myAuth = metaData("auth");
    myTLS  = metaData("tls");
    kdDebug(7116) << "myAuth: " << myAuth << endl;

    imapCommand *cmd;

    unhandled.clear ();
    if (!alreadyConnected) while (!parseLoop ()) ;    //get greeting
    TQString greeting;
    if (!unhandled.isEmpty()) greeting = unhandled.first().stripWhiteSpace();
    unhandled.clear ();       //get rid of it
    cmd = doCommand (new imapCommand ("CAPABILITY", ""));

    kdDebug(7116) << "IMAP4: setHost: capability" << endl;
    for (TQStringList::Iterator it = imapCapabilities.begin ();
         it != imapCapabilities.end (); ++it)
    {
      kdDebug(7116) << "'" << (*it) << "'" << endl;
    }
    completeQueue.removeRef (cmd);

    if (!hasCapability("IMAP4") && !hasCapability("IMAP4rev1"))
    {
      error(ERR_COULD_NOT_LOGIN, i18n("The server %1 supports neither "
        "IMAP4 nor IMAP4rev1.\nIt identified itself with: %2")
        .arg(myHost).arg(greeting));
      closeConnection();
      return false;
    }

    if (metaData("nologin") == "on") return TRUE;

    if (myTLS == "on" && !hasCapability(TQString("STARTTLS")))
    {
      error(ERR_COULD_NOT_LOGIN, i18n("The server does not support TLS.\n"
        "Disable this security feature to connect unencrypted."));
      closeConnection();
      return false;
    }
    if ((myTLS == "on" || (canUseTLS() && myTLS != "off")) &&
      hasCapability(TQString("STARTTLS")))
    {
      imapCommand *cmd = doCommand (imapCommand::clientStartTLS());
      if (cmd->result () == "OK")
      {
        completeQueue.removeRef(cmd);
        int tlsrc = startTLS();
        if (tlsrc == 1)
        {
          kdDebug(7116) << "TLS mode has been enabled." << endl;
          imapCommand *cmd2 = doCommand (new imapCommand ("CAPABILITY", ""));
          for (TQStringList::Iterator it = imapCapabilities.begin ();
                                     it != imapCapabilities.end (); ++it)
          {
            kdDebug(7116) << "'" << (*it) << "'" << endl;
          }
          completeQueue.removeRef (cmd2);
        } else {
          kdWarning(7116) << "TLS mode setup has failed.  Aborting." << endl;
          error (ERR_COULD_NOT_LOGIN, i18n("Starting TLS failed."));
          closeConnection();
          return false;
        }
      } else completeQueue.removeRef(cmd);
    }

    if (myAuth.isEmpty () || myAuth == "*") {
      if (hasCapability (TQString ("LOGINDISABLED"))) {
        error (ERR_COULD_NOT_LOGIN, i18n("LOGIN is disabled by the server."));
        closeConnection();
        return false;
      }
    }
    else {
      if (!hasCapability (TQString ("AUTH=") + myAuth)) {
        error (ERR_COULD_NOT_LOGIN, i18n("The authentication method %1 is not "
          "supported by the server.").arg(myAuth));
        closeConnection();
        return false;
      }
    }

    if ( greeting.contains(  TQRegExp(  "Cyrus IMAP4 v2.1" ) ) ) {
      removeCapability( "ANNOTATEMORE" );
    }

    // starting from Cyrus IMAP 2.3.9, shared seen flags are available
    TQRegExp regExp( "Cyrus\\sIMAP[4]{0,1}\\sv(\\d+)\\.(\\d+)\\.(\\d+)", false );
    if ( regExp.search( greeting ) >= 0 ) {
      const int major = regExp.cap( 1 ).toInt();
      const int minor = regExp.cap( 2 ).toInt();
      const int patch = regExp.cap( 3 ).toInt();
      if ( major > 2 || (major == 2 && (minor > 3 || (minor == 3 && patch > 9))) ) {
        kdDebug(7116) << k_funcinfo << "Cyrus IMAP >= 2.3.9 detected, enabling shared seen flag support" << endl;
        imapCapabilities.append( "x-kmail-sharedseen" );
      }
    }

    kdDebug(7116) << "IMAP4::makeLogin - attempting login" << endl;

    TDEIO::AuthInfo authInfo;
    authInfo.username = myUser;
    authInfo.password = myPass;
    authInfo.prompt = i18n ("Username and password for your IMAP account:");

    kdDebug(7116) << "IMAP4::makeLogin - open_PassDlg said user=" << myUser << " pass=xx" << endl;

    TQString resultInfo;
    if (myAuth.isEmpty () || myAuth == "*")
    {
      if (myUser.isEmpty () || myPass.isEmpty ()) {
        if(openPassDlg (authInfo)) {
          myUser = authInfo.username;
          myPass = authInfo.password;
        }
      }
      if (!clientLogin (myUser, myPass, resultInfo))
        error(TDEIO::ERR_COULD_NOT_AUTHENTICATE, i18n("Unable to login. Probably the "
        "password is wrong.\nThe server %1 replied:\n%2").arg(myHost).arg(resultInfo));
    }
    else
    {
#ifdef HAVE_LIBSASL2
      if (!clientAuthenticate (this, authInfo, myHost, myAuth, mySSL, resultInfo))
        error(TDEIO::ERR_COULD_NOT_AUTHENTICATE, i18n("Unable to authenticate via %1.\n"
	"The server %2 replied:\n%3").arg(myAuth).arg(myHost).arg(resultInfo));
      else {
        myUser = authInfo.username;
        myPass = authInfo.password;
      }
#else
      error(TDEIO::ERR_COULD_NOT_LOGIN, i18n("SASL authentication is not compiled into tdeio_imap4."));
#endif
    }
    if ( hasCapability("NAMESPACE") )
    {
      // get all namespaces and save the namespace - delimiter association
      cmd = doCommand( imapCommand::clientNamespace() );
      if (cmd->result () == "OK")
      {
        kdDebug(7116) << "makeLogin - registered namespaces" << endl;
      }
      completeQueue.removeRef (cmd);
    }
    // get the default delimiter (empty listing)
    cmd = doCommand( imapCommand::clientList("", "") );
    if (cmd->result () == "OK")
    {
      TQValueListIterator < imapList > it = listResponses.begin();
      if ( it == listResponses.end() )
      {
          // empty answer - this is a buggy imap server
          // as a fallback we fire a normal listing and take the first answer
          completeQueue.removeRef (cmd);
          cmd = doCommand( imapCommand::clientList("", "%") );
          if (cmd->result () == "OK")
          {
              it = listResponses.begin();
          }
      }
      if ( it != listResponses.end() )
      {
        namespaceToDelimiter[TQString()] = (*it).hierarchyDelimiter();
        kdDebug(7116) << "makeLogin - delimiter for empty ns='" <<
          (*it).hierarchyDelimiter() << "'" << endl;
        if ( !hasCapability("NAMESPACE") )
        {
          // server does not support namespaces
          TQString nsentry = TQString::number( 0 ) + "=="
            + (*it).hierarchyDelimiter();
          imapNamespaces.append( nsentry );
        }
      }
    }
    completeQueue.removeRef (cmd);
  } else {
    kdDebug(7116) << "makeLogin - NO login" << endl;
  }

  return getState() == ISTATE_LOGIN;
}

void
IMAP4Protocol::parseWriteLine (const TQString & aStr)
{
  //kdDebug(7116) << "Writing: " << aStr << endl;
  TQCString writer = aStr.utf8();
  int len = writer.length();

  // append CRLF if necessary
  if (len == 0 || (writer[len - 1] != '\n')) {
    len += 2;
    writer += "\r\n";
  }

  // write it
  write(writer.data(), len);
}

TQString
IMAP4Protocol::getMimeType (enum IMAP_TYPE aType)
{
  switch (aType)
  {
  case ITYPE_DIR:
    return "inode/directory";
    break;

  case ITYPE_BOX:
    return "message/digest";
    break;

  case ITYPE_DIR_AND_BOX:
    return "message/directory";
    break;

  case ITYPE_MSG:
    return "message/rfc822";
    break;

  // this should be handled by flushOutput
  case ITYPE_ATTACH:
    return "application/octet-stream";
    break;

  case ITYPE_UNKNOWN:
  default:
    return "unknown/unknown";
  }
}



void
IMAP4Protocol::doListEntry (const KURL & _url, int stretch, imapCache * cache,
  bool withFlags, bool withSubject)
{
  KURL aURL = _url;
  aURL.setQuery (TQString());
  const TQString encodedUrl = aURL.url(0, 106); // utf-8
  doListEntry(encodedUrl, stretch, cache, withFlags, withSubject);
}



void
IMAP4Protocol::doListEntry (const TQString & encodedUrl, int stretch, imapCache * cache,
  bool withFlags, bool withSubject)
{
  if (cache)
  {
    UDSEntry entry;
    UDSAtom atom;

    entry.clear ();

    const TQString uid = TQString::number(cache->getUid());

    atom.m_uds = UDS_NAME;
    atom.m_str = uid;
    atom.m_long = 0;
    if (stretch > 0)
    {
      atom.m_str = "0000000000000000" + atom.m_str;
      atom.m_str = atom.m_str.right (stretch);
    }
    if (withSubject)
    {
      mailHeader *header = cache->getHeader();
      if (header)
        atom.m_str += " " + header->getSubject();
    }
    entry.append (atom);

    atom.m_uds = UDS_URL;
    atom.m_str = encodedUrl; // utf-8
    if (atom.m_str[atom.m_str.length () - 1] != '/')
      atom.m_str += '/';
    atom.m_str += ";UID=" + uid;
    atom.m_long = 0;
    entry.append (atom);

    atom.m_uds = UDS_FILE_TYPE;
    atom.m_str = TQString();
    atom.m_long = S_IFREG;
    entry.append (atom);

    atom.m_uds = UDS_SIZE;
    atom.m_long = cache->getSize();
    entry.append (atom);

    atom.m_uds = UDS_MIME_TYPE;
    atom.m_str = "message/rfc822";
    atom.m_long = 0;
    entry.append (atom);

    atom.m_uds = UDS_USER;
    atom.m_str = myUser;
    entry.append (atom);

    atom.m_uds = TDEIO::UDS_ACCESS;
    atom.m_long = (withFlags) ? cache->getFlags() : S_IRUSR | S_IXUSR | S_IWUSR;
    entry.append (atom);

    listEntry (entry, false);
  }
}

void
IMAP4Protocol::doListEntry (const KURL & _url, const TQString & myBox,
                            const imapList & item, bool appendPath)
{
  KURL aURL = _url;
  aURL.setQuery (TQString());
  UDSEntry entry;
  UDSAtom atom;
  int hdLen = item.hierarchyDelimiter().length();

  {
    // mailboxName will be appended to the path if appendPath is true
    TQString mailboxName = item.name ();

    // some beautification
    if (mailboxName.find (myBox) == 0 && mailboxName.length() > myBox.length())
    {
      mailboxName =
        mailboxName.right (mailboxName.length () - myBox.length ());
    }
    if (mailboxName[0] == '/')
        mailboxName = mailboxName.right (mailboxName.length () - 1);
    if (mailboxName.left(hdLen) == item.hierarchyDelimiter())
      mailboxName = mailboxName.right(mailboxName.length () - hdLen);
    if (mailboxName.right(hdLen) == item.hierarchyDelimiter())
      mailboxName.truncate(mailboxName.length () - hdLen);

    atom.m_uds = UDS_NAME;
    if (!item.hierarchyDelimiter().isEmpty() &&
        mailboxName.find(item.hierarchyDelimiter()) != -1)
      atom.m_str = mailboxName.section(item.hierarchyDelimiter(), -1);
    else
      atom.m_str = mailboxName;

    // konqueror will die with an assertion failure otherwise
    if (atom.m_str.isEmpty ())
      atom.m_str = "..";

    if (!atom.m_str.isEmpty ())
    {
      atom.m_long = 0;
      entry.append (atom);

      if (!item.noSelect ())
      {
        atom.m_uds = UDS_MIME_TYPE;
        if (!item.noInferiors ())
        {
          atom.m_str = "message/directory";
        } else {
          atom.m_str = "message/digest";
        }
        atom.m_long = 0;
        entry.append (atom);
        mailboxName += '/';

        // explicitly set this as a directory for KFileDialog
        atom.m_uds = UDS_FILE_TYPE;
        atom.m_str = TQString();
        atom.m_long = S_IFDIR;
        entry.append (atom);
      }
      else if (!item.noInferiors ())
      {
        atom.m_uds = UDS_MIME_TYPE;
        atom.m_str = "inode/directory";
        atom.m_long = 0;
        entry.append (atom);
        mailboxName += '/';

        // explicitly set this as a directory for KFileDialog
        atom.m_uds = UDS_FILE_TYPE;
        atom.m_str = TQString();
        atom.m_long = S_IFDIR;
        entry.append (atom);
      }
      else
      {
        atom.m_uds = UDS_MIME_TYPE;
        atom.m_str = "unknown/unknown";
        atom.m_long = 0;
        entry.append (atom);
      }

      atom.m_uds = UDS_URL;
      TQString path = aURL.path();
      atom.m_str = aURL.url (0, 106); // utf-8
      if (appendPath)
      {
        if (path[path.length() - 1] == '/' && !path.isEmpty() && path != "/")
          path.truncate(path.length() - 1);
        if (!path.isEmpty() && path != "/"
            && path.right(hdLen) != item.hierarchyDelimiter()) {
          path += item.hierarchyDelimiter();
        }
        path += mailboxName;
        if (path.upper() == "/INBOX/") {
            // make sure the client can rely on INBOX
            path = path.upper();
        }
      }
      aURL.setPath(path);
      atom.m_str = aURL.url(0, 106); // utf-8
      atom.m_long = 0;
      entry.append (atom);

      atom.m_uds = UDS_USER;
      atom.m_str = myUser;
      entry.append (atom);

      atom.m_uds = UDS_ACCESS;
      atom.m_long = S_IRUSR | S_IXUSR | S_IWUSR;
      entry.append (atom);

      atom.m_uds = UDS_EXTRA;
      atom.m_str = item.attributesAsString();
      atom.m_long = 0;
      entry.append (atom);

      listEntry (entry, false);
    }
  }
}

enum IMAP_TYPE
IMAP4Protocol::parseURL (const KURL & _url, TQString & _box,
                         TQString & _section, TQString & _type, TQString & _uid,
                         TQString & _validity, TQString & _hierarchyDelimiter,
                         TQString & _info, bool cache)
{
  enum IMAP_TYPE retVal;
  retVal = ITYPE_UNKNOWN;

  imapParser::parseURL (_url, _box, _section, _type, _uid, _validity, _info);
//  kdDebug(7116) << "URL: query - '" << KURL::decode_string(_url.query()) << "'" << endl;

  // get the delimiter
  TQString myNamespace = namespaceForBox( _box );
  kdDebug(7116) << "IMAP4::parseURL - namespace=" << myNamespace << endl;
  if ( namespaceToDelimiter.contains(myNamespace) )
  {
    _hierarchyDelimiter = namespaceToDelimiter[myNamespace];
    kdDebug(7116) << "IMAP4::parseURL - delimiter=" << _hierarchyDelimiter << endl;
  }

  if (!_box.isEmpty ())
  {
    kdDebug(7116) << "IMAP4::parseURL - box=" << _box << endl;

    if (makeLogin ())
    {
      if (getCurrentBox () != _box ||
          _type == "LIST" || _type == "LSUB" || _type == "LSUBNOCHECK")
      {
        if ( cache )
        {
          // assume a normal box
          retVal = ITYPE_DIR_AND_BOX;
        } else
        {
          // start a listing for the box to get the type
          imapCommand *cmd;

          cmd = doCommand (imapCommand::clientList ("", _box));
          if (cmd->result () == "OK")
          {
            for (TQValueListIterator < imapList > it = listResponses.begin ();
                it != listResponses.end (); ++it)
            {
              //kdDebug(7116) << "IMAP4::parseURL - checking " << _box << " to " << (*it).name() << endl;
              if (_box == (*it).name ())
              {
                if ( !(*it).hierarchyDelimiter().isEmpty() )
                  _hierarchyDelimiter = (*it).hierarchyDelimiter();
                if ((*it).noSelect ())
                {
                  retVal = ITYPE_DIR;
                }
                else if ((*it).noInferiors ())
                {
                  retVal = ITYPE_BOX;
                }
                else
                {
                  retVal = ITYPE_DIR_AND_BOX;
                }
              }
            }
            // if we got no list response for the box see if it's a prefix
            if ( retVal == ITYPE_UNKNOWN &&
                 namespaceToDelimiter.contains(_box) ) {
              retVal = ITYPE_DIR;
            }
          } else {
            kdDebug(7116) << "IMAP4::parseURL - got error for " << _box << endl;
          }
          completeQueue.removeRef (cmd);
        } // cache
      }
      else // current == box
      {
        retVal = ITYPE_BOX;
      }
    }
    else
      kdDebug(7116) << "IMAP4::parseURL: no login!" << endl;

  }
  else // empty box
  {
    // the root is just a dir
    kdDebug(7116) << "IMAP4: parseURL: box [root]" << endl;
    retVal = ITYPE_DIR;
  }

  // see if it is a real sequence or a simple uid
  if (retVal == ITYPE_BOX || retVal == ITYPE_DIR_AND_BOX)
  {
    if (!_uid.isEmpty ())
    {
      if (_uid.find (':') == -1 && _uid.find (',') == -1
          && _uid.find ('*') == -1)
        retVal = ITYPE_MSG;
    }
  }
  if (retVal == ITYPE_MSG)
  {
    if ( (_section.find ("BODY.PEEK[", 0, false) != -1 ||
          _section.find ("BODY[", 0, false) != -1) &&
         _section.find(".MIME") == -1 &&
         _section.find(".HEADER") == -1 )
      retVal = ITYPE_ATTACH;
  }
  if ( _hierarchyDelimiter.isEmpty() &&
       (_type == "LIST" || _type == "LSUB" || _type == "LSUBNOCHECK") )
  {
    // this shouldn't happen but when the delimiter is really empty
    // we try to reconstruct it from the URL
    if (!_box.isEmpty())
    {
      int start = _url.path().findRev(_box);
      if (start != -1)
        _hierarchyDelimiter = _url.path().mid(start-1, start);
      kdDebug(7116) << "IMAP4::parseURL - reconstructed delimiter:" << _hierarchyDelimiter
        << " from URL " << _url.path() << endl;
    }
    if (_hierarchyDelimiter.isEmpty())
      _hierarchyDelimiter = "/";
  }
  kdDebug(7116) << "IMAP4::parseURL - return " << retVal << endl;

  return retVal;
}

int
IMAP4Protocol::outputLine (const TQCString & _str, int len)
{
  if (len == -1) {
    len = _str.length();
  }

  if (cacheOutput)
  {
    if ( !outputBuffer.isOpen() ) {
      outputBuffer.open(IO_WriteOnly);
    }
    outputBuffer.at(outputBufferIndex);
    outputBuffer.writeBlock(_str.data(), len);
    outputBufferIndex += len;
    return 0;
  }

  TQByteArray temp;
  bool relay = relayEnabled;

  relayEnabled = true;
  temp.setRawData (_str.data (), len);
  parseRelay (temp);
  temp.resetRawData (_str.data (), len);

  relayEnabled = relay;
  return 0;
}

void IMAP4Protocol::flushOutput(TQString contentEncoding)
{
  // send out cached data to the application
  if (outputBufferIndex == 0)
    return;
  outputBuffer.close();
  outputCache.resize(outputBufferIndex);
  if (decodeContent)
  {
    // get the coding from the MIME header
    TQByteArray decoded;
    if (contentEncoding.find("quoted-printable", 0, false) == 0)
      decoded = KCodecs::quotedPrintableDecode(outputCache);
    else if (contentEncoding.find("base64", 0, false) == 0)
      KCodecs::base64Decode(outputCache, decoded);
    else
      decoded = outputCache;

    TQString mimetype = KMimeType::findByContent( decoded )->name();
    kdDebug(7116) << "IMAP4::flushOutput - mimeType " << mimetype << endl;
    mimeType(mimetype);
    decodeContent = false;
    data( decoded );
  } else {
    data( outputCache );
  }
  mProcessedSize += outputBufferIndex;
  processedSize( mProcessedSize );
  outputBufferIndex = 0;
  outputCache[0] = '\0';
  outputBuffer.setBuffer(outputCache);
}

ssize_t IMAP4Protocol::myRead(void *data, ssize_t len)
{
  if (readBufferLen)
  {
    ssize_t copyLen = (len < readBufferLen) ? len : readBufferLen;
    memcpy(data, readBuffer, copyLen);
    readBufferLen -= copyLen;
    if (readBufferLen) memcpy(readBuffer, &readBuffer[copyLen], readBufferLen);
    return copyLen;
  }
  if (!isConnectionValid()) return 0;
  waitForResponse( responseTimeout() );
  return read(data, len);
}

bool
IMAP4Protocol::assureBox (const TQString & aBox, bool readonly)
{
  if (aBox.isEmpty()) return false;

  imapCommand *cmd = 0;

  if (aBox != getCurrentBox () || (!getSelected().readWrite() && !readonly))
  {
    // open the box with the appropriate mode
    kdDebug(7116) << "IMAP4Protocol::assureBox - opening box" << endl;
    selectInfo = imapInfo();
    cmd = doCommand (imapCommand::clientSelect (aBox, readonly));
    bool ok = cmd->result() == "OK";
    TQString cmdInfo = cmd->resultInfo();
    completeQueue.removeRef (cmd);

    if (!ok)
    {
      bool found = false;
      cmd = doCommand (imapCommand::clientList ("", aBox));
      if (cmd->result () == "OK")
      {
        for (TQValueListIterator < imapList > it = listResponses.begin ();
             it != listResponses.end (); ++it)
        {
          if (aBox == (*it).name ()) found = true;
        }
      }
      completeQueue.removeRef (cmd);
      if (found) {
        if (cmdInfo.find("permission", 0, false) != -1) {
          // not allowed to enter this folder
          error(ERR_ACCESS_DENIED, cmdInfo);
        } else {
          error(ERR_SLAVE_DEFINED, i18n("Unable to open folder %1. The server replied: %2").arg(aBox).arg(cmdInfo));
        }
      } else {
        error(TDEIO::ERR_DOES_NOT_EXIST, aBox);
      }
      return false;
    }
  }
  else
  {
    // Give the server a chance to deliver updates every ten seconds.
    // Doing this means a server roundtrip and since assureBox is called
    // after every mail, we do it with a timeout.
    kdDebug(7116) << "IMAP4Protocol::assureBox - reusing box" << endl;
    if ( mTimeOfLastNoop.secsTo( TQDateTime::currentDateTime() ) > 10 ) {
      cmd = doCommand (imapCommand::clientNoop ());
      completeQueue.removeRef (cmd);
      mTimeOfLastNoop = TQDateTime::currentDateTime();
      kdDebug(7116) << "IMAP4Protocol::assureBox - noop timer fired" << endl;
    }
  }

  // if it is the mode we want
  if (!getSelected().readWrite() && !readonly)
  {
    error(TDEIO::ERR_CANNOT_OPEN_FOR_WRITING, aBox);
    return false;
  }

  return true;
}