Mercurial > dovecot > core-2.2
annotate src/doveadm/dsync/dsync-ibc-stream.c @ 15470:01ba0511d04d
dsync: Error handling fix when mailbox is unexpectedly lost.
| author | Timo Sirainen <tss@iki.fi> |
|---|---|
| date | Sat, 15 Dec 2012 12:31:56 +0200 |
| parents | 05d83c4df130 |
| children | 88ac919f8afe |
| rev | line source |
|---|---|
| 14584 | 1 /* Copyright (c) 2012 Dovecot authors, see the included COPYING file */ |
| 2 | |
| 3 #include "lib.h" | |
| 4 #include "array.h" | |
| 5 #include "fd-set-nonblock.h" | |
| 6 #include "safe-mkstemp.h" | |
| 7 #include "ioloop.h" | |
| 8 #include "istream.h" | |
| 9 #include "istream-seekable.h" | |
| 10 #include "istream-dot.h" | |
| 11 #include "ostream.h" | |
| 12 #include "str.h" | |
| 13 #include "strescape.h" | |
| 14 #include "master-service.h" | |
| 15 #include "mail-cache.h" | |
| 16 #include "mail-storage-private.h" | |
| 17 #include "dsync-serializer.h" | |
| 18 #include "dsync-deserializer.h" | |
| 19 #include "dsync-mail.h" | |
| 20 #include "dsync-mailbox.h" | |
| 21 #include "dsync-mailbox-state.h" | |
| 22 #include "dsync-mailbox-tree.h" | |
|
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23 #include "dsync-ibc-private.h" |
| 14584 | 24 |
| 25 #include <stdlib.h> | |
| 26 | |
|
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27 #define DSYNC_IBC_STREAM_TIMEOUT_MSECS (60*10*1000) |
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28 #define DSYNC_IBC_STREAM_OUTBUF_THROTTLE_SIZE (1024*128) |
| 14584 | 29 |
| 30 #define DSYNC_PROTOCOL_VERSION_MAJOR 3 | |
| 31 #define DSYNC_HANDSHAKE_VERSION "VERSION\tdsync\t3\t0\n" | |
| 32 | |
| 33 enum item_type { | |
| 34 ITEM_NONE, | |
| 35 | |
| 36 ITEM_HANDSHAKE, | |
| 37 ITEM_MAILBOX_STATE, | |
| 38 ITEM_MAILBOX_TREE_NODE, | |
| 39 ITEM_MAILBOX_DELETE, | |
| 40 ITEM_MAILBOX, | |
| 41 | |
| 42 ITEM_MAIL_CHANGE, | |
| 43 ITEM_MAIL_REQUEST, | |
| 44 ITEM_MAIL, | |
| 45 | |
| 46 ITEM_MAILBOX_CACHE_FIELD, | |
| 47 | |
| 48 ITEM_END_OF_LIST | |
| 49 }; | |
| 50 | |
| 51 #define END_OF_LIST_LINE "." | |
| 52 static const struct { | |
| 53 /* full human readable name of the item */ | |
| 54 const char *name; | |
| 55 /* unique character identifying the item */ | |
| 56 char chr; | |
| 57 const char *required_keys; | |
| 58 const char *optional_keys; | |
| 59 } items[ITEM_END_OF_LIST+1] = { | |
| 60 { NULL, '\0', NULL, NULL }, | |
| 61 { .name = "handshake", | |
| 62 .chr = 'H', | |
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63 .optional_keys = "sync_ns_prefix sync_type debug sync_all_namespaces " |
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64 "mails_have_guids send_guid_requests backup_send backup_recv" |
| 14584 | 65 }, |
| 66 { .name = "mailbox_state", | |
| 67 .chr = 'S', | |
| 68 .required_keys = "mailbox_guid last_uidvalidity last_common_uid " | |
| 69 "last_common_modseq" | |
| 70 }, | |
| 71 { .name = "mailbox_tree_node", | |
| 72 .chr = 'N', | |
| 73 .required_keys = "name existence", | |
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74 .optional_keys = "mailbox_guid uid_validity uid_next " |
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75 "last_renamed_or_created subscribed last_subscription_change" |
| 14584 | 76 }, |
| 77 { .name = "mailbox_delete", | |
| 78 .chr = 'D', | |
| 79 .required_keys = "hierarchy_sep", | |
| 80 .optional_keys = "mailboxes dirs" | |
| 81 }, | |
| 82 { .name = "mailbox", | |
| 83 .chr = 'B', | |
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84 .required_keys = "mailbox_lost mailbox_guid uid_validity uid_next " |
| 14584 | 85 "messages_count first_recent_uid highest_modseq", |
| 86 .optional_keys = "cache_fields" | |
| 87 }, | |
| 88 { .name = "mail_change", | |
| 89 .chr = 'C', | |
| 90 .required_keys = "type uid", | |
| 91 .optional_keys = "guid hdr_hash modseq save_timestamp " | |
| 92 "add_flags remove_flags final_flags " | |
| 93 "keywords_reset keyword_changes" | |
| 94 }, | |
| 95 { .name = "mail_request", | |
| 96 .chr = 'R', | |
| 97 .optional_keys = "guid uid" | |
| 98 }, | |
| 99 { .name = "mail", | |
| 100 .chr = 'M', | |
| 101 .optional_keys = "guid uid pop3_uidl pop3_order received_date stream" | |
| 102 }, | |
| 103 { .name = "mailbox_cache_field", | |
| 104 .chr = 'c', | |
| 105 .required_keys = "name decision", | |
| 106 .optional_keys = "last_used" | |
| 107 }, | |
| 108 | |
| 109 { "end_of_list", '\0', NULL, NULL } | |
| 110 }; | |
| 111 | |
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112 struct dsync_ibc_stream { |
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113 struct dsync_ibc ibc; |
| 14584 | 114 |
| 115 char *name, *temp_path_prefix; | |
| 116 int fd_in, fd_out; | |
| 117 struct istream *input; | |
| 118 struct ostream *output; | |
| 119 struct io *io; | |
| 120 struct timeout *to; | |
| 121 | |
| 122 struct dsync_serializer *serializers[ITEM_END_OF_LIST]; | |
| 123 struct dsync_deserializer *deserializers[ITEM_END_OF_LIST]; | |
| 124 | |
| 125 pool_t ret_pool; | |
| 126 struct dsync_deserializer_decoder *cur_decoder; | |
| 127 | |
| 128 struct istream *mail_output, *mail_input; | |
| 129 struct dsync_mail *cur_mail; | |
| 130 char mail_output_last; | |
| 131 | |
| 132 unsigned int version_received:1; | |
| 133 unsigned int handshake_received:1; | |
| 134 unsigned int has_pending_data:1; | |
| 135 }; | |
| 136 | |
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137 static void dsync_ibc_stream_stop(struct dsync_ibc_stream *ibc) |
| 14584 | 138 { |
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139 i_stream_close(ibc->input); |
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140 o_stream_close(ibc->output); |
| 14584 | 141 io_loop_stop(current_ioloop); |
| 142 } | |
| 143 | |
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144 static int dsync_ibc_stream_read_mail_stream(struct dsync_ibc_stream *ibc) |
| 14584 | 145 { |
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146 while (i_stream_read(ibc->mail_input) > 0) { |
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147 i_stream_skip(ibc->mail_input, |
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148 i_stream_get_data_size(ibc->mail_input)); |
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149 } |
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150 if (ibc->mail_input->eof) { |
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151 if (ibc->mail_input->stream_errno != 0) { |
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152 errno = ibc->mail_input->stream_errno; |
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153 i_error("dsync(%s): read() failed: %m", ibc->name); |
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154 dsync_ibc_stream_stop(ibc); |
| 14584 | 155 return -1; |
| 156 } | |
| 157 /* finished reading the mail stream */ | |
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158 i_assert(ibc->mail_input->eof); |
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159 i_stream_seek(ibc->mail_input, 0); |
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160 ibc->has_pending_data = TRUE; |
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161 ibc->mail_input = NULL; |
| 14584 | 162 return 1; |
| 163 } | |
| 164 return 0; | |
| 165 } | |
| 166 | |
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167 static void dsync_ibc_stream_input(struct dsync_ibc_stream *ibc) |
| 14584 | 168 { |
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169 if (ibc->mail_input != NULL) { |
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170 if (dsync_ibc_stream_read_mail_stream(ibc) == 0) |
| 14584 | 171 return; |
| 172 } | |
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173 ibc->ibc.io_callback(ibc->ibc.io_context); |
| 14584 | 174 } |
| 175 | |
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176 static int dsync_ibc_stream_send_mail_stream(struct dsync_ibc_stream *ibc) |
| 14584 | 177 { |
| 178 const unsigned char *data; | |
| 179 unsigned char add; | |
| 180 size_t i, size; | |
| 181 int ret; | |
| 182 | |
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183 while ((ret = i_stream_read_data(ibc->mail_output, |
| 14584 | 184 &data, &size, 0)) > 0) { |
| 185 add = '\0'; | |
| 186 for (i = 0; i < size; i++) { | |
| 187 if (data[i] == '\n') { | |
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188 if ((i == 0 && ibc->mail_output_last != '\r') || |
| 14584 | 189 (i > 0 && data[i-1] != '\r')) { |
| 190 /* missing CR */ | |
| 191 add = '\r'; | |
| 192 break; | |
| 193 } | |
| 194 } else if (data[i] == '.' && | |
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195 ((i == 0 && ibc->mail_output_last == '\n') || |
| 14584 | 196 (i > 0 && data[i-1] == '\n'))) { |
| 197 /* escape the dot */ | |
| 198 add = '.'; | |
| 199 break; | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 if (i > 0) { | |
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204 o_stream_nsend(ibc->output, data, i); |
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205 ibc->mail_output_last = data[i-1]; |
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206 i_stream_skip(ibc->mail_output, i); |
| 14584 | 207 } |
| 208 | |
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209 if (o_stream_get_buffer_used_size(ibc->output) >= 4096) { |
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210 if ((ret = o_stream_flush(ibc->output)) < 0) { |
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211 dsync_ibc_stream_stop(ibc); |
| 14584 | 212 return -1; |
| 213 } | |
| 214 if (ret == 0) { | |
| 215 /* continue later */ | |
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216 o_stream_set_flush_pending(ibc->output, TRUE); |
| 14584 | 217 return 0; |
| 218 } | |
| 219 } | |
| 220 | |
| 221 if (add != '\0') { | |
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222 o_stream_nsend(ibc->output, &add, 1); |
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223 ibc->mail_output_last = add; |
| 14584 | 224 } |
| 225 } | |
| 226 i_assert(ret == -1); | |
| 227 | |
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228 if (ibc->mail_output->stream_errno != 0) { |
| 14584 | 229 i_error("dsync(%s): read(%s) failed: %m", |
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230 ibc->name, i_stream_get_name(ibc->mail_output)); |
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231 dsync_ibc_stream_stop(ibc); |
| 14584 | 232 return -1; |
| 233 } | |
| 234 | |
| 235 /* finished sending the stream */ | |
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236 o_stream_nsend_str(ibc->output, "\r\n.\r\n"); |
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237 i_stream_unref(&ibc->mail_output); |
| 14584 | 238 return 1; |
| 239 } | |
| 240 | |
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241 static int dsync_ibc_stream_output(struct dsync_ibc_stream *ibc) |
| 14584 | 242 { |
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243 struct ostream *output = ibc->output; |
| 14584 | 244 int ret; |
| 245 | |
| 246 if ((ret = o_stream_flush(output)) < 0) | |
| 247 ret = 1; | |
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248 else if (ibc->mail_output != NULL) { |
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249 if (dsync_ibc_stream_send_mail_stream(ibc) < 0) |
| 14584 | 250 ret = 1; |
| 251 } | |
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252 timeout_reset(ibc->to); |
| 14584 | 253 |
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254 if (!dsync_ibc_is_send_queue_full(&ibc->ibc)) |
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255 ibc->ibc.io_callback(ibc->ibc.io_context); |
| 14584 | 256 return ret; |
| 257 } | |
| 258 | |
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259 static void dsync_ibc_stream_timeout(struct dsync_ibc_stream *ibc) |
| 14584 | 260 { |
| 261 i_error("dsync(%s): I/O has stalled, no activity for %u seconds", | |
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262 ibc->name, DSYNC_IBC_STREAM_TIMEOUT_MSECS/1000); |
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263 dsync_ibc_stream_stop(ibc); |
| 14584 | 264 } |
| 265 | |
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266 static void dsync_ibc_stream_init(struct dsync_ibc_stream *ibc) |
| 14584 | 267 { |
| 268 unsigned int i; | |
| 269 | |
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270 ibc->io = io_add(ibc->fd_in, IO_READ, dsync_ibc_stream_input, ibc); |
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271 o_stream_set_no_error_handling(ibc->output, TRUE); |
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272 o_stream_set_flush_callback(ibc->output, dsync_ibc_stream_output, ibc); |
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273 ibc->to = timeout_add(DSYNC_IBC_STREAM_TIMEOUT_MSECS, |
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274 dsync_ibc_stream_timeout, ibc); |
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275 o_stream_cork(ibc->output); |
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276 o_stream_nsend_str(ibc->output, DSYNC_HANDSHAKE_VERSION); |
| 14584 | 277 |
| 278 /* initialize serializers and send their headers to remote */ | |
| 279 for (i = 1; i < ITEM_END_OF_LIST; i++) T_BEGIN { | |
| 280 const char *keys; | |
| 281 | |
| 282 keys = items[i].required_keys == NULL ? items[i].optional_keys : | |
| 283 t_strconcat(items[i].required_keys, " ", | |
| 284 items[i].optional_keys, NULL); | |
| 285 if (keys != NULL) { | |
| 286 i_assert(items[i].chr != '\0'); | |
| 287 | |
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288 ibc->serializers[i] = |
| 14584 | 289 dsync_serializer_init(t_strsplit_spaces(keys, " ")); |
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290 o_stream_nsend(ibc->output, &items[i].chr, 1); |
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291 o_stream_nsend_str(ibc->output, |
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292 dsync_serializer_encode_header_line(ibc->serializers[i])); |
| 14584 | 293 } |
| 294 } T_END; | |
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295 o_stream_nsend_str(ibc->output, ".\n"); |
| 14584 | 296 |
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297 dsync_ibc_flush(&ibc->ibc); |
| 14584 | 298 } |
| 299 | |
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300 static void dsync_ibc_stream_deinit(struct dsync_ibc *_ibc) |
| 14584 | 301 { |
|
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302 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 303 |
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304 if (ibc->cur_decoder != NULL) |
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305 dsync_deserializer_decode_finish(&ibc->cur_decoder); |
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306 if (ibc->mail_output != NULL) |
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307 i_stream_unref(&ibc->mail_output); |
| 14584 | 308 |
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309 timeout_remove(&ibc->to); |
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310 if (ibc->io != NULL) |
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311 io_remove(&ibc->io); |
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312 i_stream_destroy(&ibc->input); |
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313 o_stream_destroy(&ibc->output); |
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314 pool_unref(&ibc->ret_pool); |
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315 i_free(ibc->temp_path_prefix); |
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316 i_free(ibc->name); |
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317 i_free(ibc); |
| 14584 | 318 } |
| 319 | |
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320 static int dsync_ibc_stream_next_line(struct dsync_ibc_stream *ibc, |
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321 const char **line_r) |
| 14584 | 322 { |
| 323 const char *line; | |
| 324 | |
|
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325 line = i_stream_next_line(ibc->input); |
| 14584 | 326 if (line != NULL) { |
| 327 *line_r = line; | |
| 328 return 1; | |
| 329 } | |
| 330 | |
| 331 /* try reading some */ | |
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332 switch (i_stream_read(ibc->input)) { |
| 14584 | 333 case -1: |
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334 if (ibc->input->stream_errno != 0) { |
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335 errno = ibc->input->stream_errno; |
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336 i_error("read(%s) failed: %m", ibc->name); |
| 14584 | 337 } else { |
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338 i_assert(ibc->input->eof); |
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339 i_error("read(%s) failed: EOF", ibc->name); |
| 14584 | 340 } |
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341 dsync_ibc_stream_stop(ibc); |
| 14584 | 342 return -1; |
| 343 case 0: | |
| 344 return 0; | |
| 345 } | |
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346 *line_r = i_stream_next_line(ibc->input); |
| 14584 | 347 if (*line_r == NULL) { |
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348 ibc->has_pending_data = FALSE; |
| 14584 | 349 return 0; |
| 350 } | |
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351 ibc->has_pending_data = TRUE; |
| 14584 | 352 return 1; |
| 353 } | |
| 354 | |
|
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355 static void ATTR_FORMAT(3, 4) ATTR_NULL(2) |
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356 dsync_ibc_input_error(struct dsync_ibc_stream *ibc, |
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357 struct dsync_deserializer_decoder *decoder, |
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358 const char *fmt, ...) |
| 14584 | 359 { |
| 360 va_list args; | |
| 361 const char *error; | |
| 362 | |
| 363 va_start(args, fmt); | |
| 364 error = t_strdup_vprintf(fmt, args); | |
| 365 if (decoder == NULL) | |
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366 i_error("dsync(%s): %s", ibc->name, error); |
| 14584 | 367 else { |
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368 i_error("dsync(%s): %s: %s", ibc->name, |
| 14584 | 369 dsync_deserializer_decoder_get_name(decoder), error); |
| 370 } | |
| 371 va_end(args); | |
| 372 | |
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373 dsync_ibc_stream_stop(ibc); |
| 14584 | 374 } |
| 375 | |
| 376 static void | |
|
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377 dsync_ibc_stream_send_string(struct dsync_ibc_stream *ibc, |
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378 const string_t *str) |
| 14584 | 379 { |
|
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380 i_assert(ibc->mail_output == NULL); |
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381 o_stream_nsend(ibc->output, str_data(str), str_len(str)); |
| 14584 | 382 } |
| 383 | |
|
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384 static int |
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385 dsync_ibc_check_missing_deserializers(struct dsync_ibc_stream *ibc) |
| 14584 | 386 { |
| 387 unsigned int i; | |
| 388 int ret = 0; | |
| 389 | |
| 390 for (i = 1; i < ITEM_END_OF_LIST; i++) { | |
|
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391 if (ibc->deserializers[i] == NULL && |
| 14584 | 392 (items[i].required_keys != NULL || |
| 393 items[i].optional_keys != NULL)) { | |
|
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394 dsync_ibc_input_error(ibc, NULL, |
| 14584 | 395 "Remote didn't handshake deserializer for %s", |
| 396 items[i].name); | |
| 397 ret = -1; | |
| 398 } | |
| 399 } | |
| 400 return ret; | |
| 401 } | |
| 402 | |
| 403 static bool | |
|
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404 dsync_ibc_stream_handshake(struct dsync_ibc_stream *ibc, const char *line) |
| 14584 | 405 { |
| 406 enum item_type item = ITEM_NONE; | |
| 407 const char *const *required_keys, *error; | |
| 408 unsigned int i; | |
| 409 | |
|
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410 if (ibc->handshake_received) |
| 14584 | 411 return TRUE; |
| 412 | |
|
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413 if (!ibc->version_received) { |
| 14584 | 414 if (!version_string_verify(line, "dsync", |
| 415 DSYNC_PROTOCOL_VERSION_MAJOR)) { | |
|
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416 dsync_ibc_input_error(ibc, NULL, |
| 14584 | 417 "Remote dsync doesn't use compatible protocol"); |
|
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418 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 419 } |
|
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420 ibc->version_received = TRUE; |
| 14584 | 421 return FALSE; |
| 422 } | |
| 423 | |
| 424 if (strcmp(line, END_OF_LIST_LINE) == 0) { | |
| 425 /* finished handshaking */ | |
|
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426 if (dsync_ibc_check_missing_deserializers(ibc) < 0) |
| 14584 | 427 return FALSE; |
|
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428 ibc->handshake_received = TRUE; |
| 14584 | 429 return FALSE; |
| 430 } | |
| 431 | |
| 432 for (i = 1; i < ITEM_END_OF_LIST; i++) { | |
| 433 if (items[i].chr == line[0]) { | |
| 434 item = i; | |
| 435 break; | |
| 436 } | |
| 437 } | |
| 438 if (item == ITEM_NONE) { | |
| 439 /* unknown deserializer, ignore */ | |
| 440 return FALSE; | |
| 441 } | |
| 442 | |
| 443 required_keys = items[item].required_keys == NULL ? NULL : | |
| 444 t_strsplit(items[item].required_keys, " "); | |
| 445 if (dsync_deserializer_init(items[item].name, | |
| 446 required_keys, line + 1, | |
|
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447 &ibc->deserializers[item], &error) < 0) { |
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448 dsync_ibc_input_error(ibc, NULL, |
| 14584 | 449 "Remote sent invalid handshake for %s: %s", |
| 450 items[item].name, error); | |
| 451 } | |
| 452 return FALSE; | |
| 453 } | |
| 454 | |
|
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455 static enum dsync_ibc_recv_ret |
|
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456 dsync_ibc_stream_input_next(struct dsync_ibc_stream *ibc, enum item_type item, |
|
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457 struct dsync_deserializer_decoder **decoder_r) |
| 14584 | 458 { |
| 459 enum item_type line_item = ITEM_NONE; | |
| 460 const char *line, *error; | |
| 461 unsigned int i; | |
| 462 | |
|
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463 i_assert(ibc->mail_input == NULL); |
| 14584 | 464 |
|
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465 timeout_reset(ibc->to); |
| 14584 | 466 |
| 467 do { | |
|
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468 if (dsync_ibc_stream_next_line(ibc, &line) <= 0) |
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469 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
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470 } while (!dsync_ibc_stream_handshake(ibc, line)); |
| 14584 | 471 |
| 472 if (strcmp(line, END_OF_LIST_LINE) == 0) { | |
| 473 /* end of this list */ | |
|
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474 return DSYNC_IBC_RECV_RET_FINISHED; |
| 14584 | 475 } |
| 476 for (i = 1; i < ITEM_END_OF_LIST; i++) { | |
| 477 if (*line == items[i].chr) { | |
| 478 line_item = i; | |
| 479 break; | |
| 480 } | |
| 481 } | |
| 482 if (line_item != item) { | |
|
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483 dsync_ibc_input_error(ibc, NULL, |
| 14584 | 484 "Received unexpected input %c != %c", |
| 485 *line, items[item].chr); | |
|
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486 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 487 } |
| 488 | |
|
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489 if (ibc->cur_decoder != NULL) |
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490 dsync_deserializer_decode_finish(&ibc->cur_decoder); |
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491 if (dsync_deserializer_decode_begin(ibc->deserializers[item], |
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492 line+1, &ibc->cur_decoder, |
| 14584 | 493 &error) < 0) { |
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494 dsync_ibc_input_error(ibc, NULL, "Invalid input to %s: %s", |
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495 items[item].name, error); |
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496 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 497 } |
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498 *decoder_r = ibc->cur_decoder; |
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499 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 500 } |
| 501 | |
| 502 static void | |
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503 dsync_ibc_stream_send_handshake(struct dsync_ibc *_ibc, |
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504 const struct dsync_ibc_settings *set) |
| 14584 | 505 { |
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506 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 507 struct dsync_serializer_encoder *encoder; |
| 508 string_t *str = t_str_new(128); | |
| 509 char sync_type[2]; | |
| 510 | |
| 511 str_append_c(str, items[ITEM_HANDSHAKE].chr); | |
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512 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_HANDSHAKE]); |
| 14584 | 513 if (set->sync_ns_prefix != NULL) { |
| 514 dsync_serializer_encode_add(encoder, "sync_ns_prefix", | |
| 515 set->sync_ns_prefix); | |
| 516 } | |
| 517 | |
| 518 sync_type[0] = sync_type[1] = '\0'; | |
| 519 switch (set->sync_type) { | |
| 520 case DSYNC_BRAIN_SYNC_TYPE_UNKNOWN: | |
| 521 break; | |
| 522 case DSYNC_BRAIN_SYNC_TYPE_FULL: | |
| 523 sync_type[0] = 'f'; | |
| 524 break; | |
| 525 case DSYNC_BRAIN_SYNC_TYPE_CHANGED: | |
| 526 sync_type[0] = 'c'; | |
| 527 break; | |
| 528 case DSYNC_BRAIN_SYNC_TYPE_STATE: | |
| 529 sync_type[0] = 's'; | |
| 530 break; | |
| 531 } | |
| 532 i_assert(sync_type[0] != '\0'); | |
| 533 dsync_serializer_encode_add(encoder, "sync_type", sync_type); | |
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534 if ((set->brain_flags & DSYNC_BRAIN_FLAG_MAILS_HAVE_GUIDS) != 0) |
| 14584 | 535 dsync_serializer_encode_add(encoder, "mails_have_guids", ""); |
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536 if ((set->brain_flags & DSYNC_BRAIN_FLAG_SEND_GUID_REQUESTS) != 0) |
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537 dsync_serializer_encode_add(encoder, "send_guid_requests", ""); |
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538 if ((set->brain_flags & DSYNC_BRAIN_FLAG_BACKUP_SEND) != 0) |
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539 dsync_serializer_encode_add(encoder, "backup_send", ""); |
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540 if ((set->brain_flags & DSYNC_BRAIN_FLAG_BACKUP_RECV) != 0) |
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541 dsync_serializer_encode_add(encoder, "backup_recv", ""); |
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542 if ((set->brain_flags & DSYNC_BRAIN_FLAG_DEBUG) != 0) |
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543 dsync_serializer_encode_add(encoder, "debug", ""); |
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544 if ((set->brain_flags & DSYNC_BRAIN_FLAG_SYNC_ALL_NAMESPACES) != 0) |
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545 dsync_serializer_encode_add(encoder, "sync_all_namespaces", ""); |
| 14584 | 546 |
| 547 dsync_serializer_encode_finish(&encoder, str); | |
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548 dsync_ibc_stream_send_string(ibc, str); |
| 14584 | 549 } |
| 550 | |
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551 static enum dsync_ibc_recv_ret |
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552 dsync_ibc_stream_recv_handshake(struct dsync_ibc *_ibc, |
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553 const struct dsync_ibc_settings **set_r) |
| 14584 | 554 { |
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555 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 556 struct dsync_deserializer_decoder *decoder; |
|
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557 struct dsync_ibc_settings *set; |
| 14584 | 558 const char *value; |
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559 pool_t pool = ibc->ret_pool; |
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560 enum dsync_ibc_recv_ret ret; |
| 14584 | 561 |
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562 ret = dsync_ibc_stream_input_next(ibc, ITEM_HANDSHAKE, &decoder); |
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563 if (ret != DSYNC_IBC_RECV_RET_OK) { |
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564 if (ret != DSYNC_IBC_RECV_RET_TRYAGAIN) { |
| 14584 | 565 i_error("dsync(%s): Unexpected input in handshake", |
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566 ibc->name); |
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567 dsync_ibc_stream_stop(ibc); |
| 14584 | 568 } |
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569 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 570 } |
| 571 | |
| 572 p_clear(pool); | |
|
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573 set = p_new(pool, struct dsync_ibc_settings, 1); |
| 14584 | 574 |
| 575 if (dsync_deserializer_decode_try(decoder, "sync_ns_prefix", &value)) | |
| 576 set->sync_ns_prefix = p_strdup(pool, value); | |
| 577 if (dsync_deserializer_decode_try(decoder, "sync_type", &value)) { | |
| 578 switch (value[0]) { | |
| 579 case 'f': | |
| 580 set->sync_type = DSYNC_BRAIN_SYNC_TYPE_FULL; | |
| 581 break; | |
| 582 case 'c': | |
| 583 set->sync_type = DSYNC_BRAIN_SYNC_TYPE_CHANGED; | |
| 584 break; | |
| 585 case 's': | |
| 586 set->sync_type = DSYNC_BRAIN_SYNC_TYPE_STATE; | |
| 587 break; | |
| 588 default: | |
|
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589 dsync_ibc_input_error(ibc, decoder, |
| 14584 | 590 "Unknown sync_type: %s", value); |
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591 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 592 } |
| 593 } | |
| 594 if (dsync_deserializer_decode_try(decoder, "mails_have_guids", &value)) | |
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595 set->brain_flags |= DSYNC_BRAIN_FLAG_MAILS_HAVE_GUIDS; |
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596 if (dsync_deserializer_decode_try(decoder, "send_guid_requests", &value)) |
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597 set->brain_flags |= DSYNC_BRAIN_FLAG_SEND_GUID_REQUESTS; |
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598 if (dsync_deserializer_decode_try(decoder, "backup_send", &value)) |
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599 set->brain_flags |= DSYNC_BRAIN_FLAG_BACKUP_SEND; |
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600 if (dsync_deserializer_decode_try(decoder, "backup_recv", &value)) |
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601 set->brain_flags |= DSYNC_BRAIN_FLAG_BACKUP_RECV; |
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602 if (dsync_deserializer_decode_try(decoder, "debug", &value)) |
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603 set->brain_flags |= DSYNC_BRAIN_FLAG_DEBUG; |
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604 if (dsync_deserializer_decode_try(decoder, "sync_all_namespaces", &value)) |
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605 set->brain_flags |= DSYNC_BRAIN_FLAG_SYNC_ALL_NAMESPACES; |
| 14584 | 606 |
| 607 *set_r = set; | |
|
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608 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 609 } |
| 610 | |
| 611 static void | |
|
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612 dsync_ibc_stream_send_end_of_list(struct dsync_ibc *_ibc) |
| 14584 | 613 { |
|
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614 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 615 |
|
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616 i_assert(ibc->mail_output == NULL); |
| 14584 | 617 |
|
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618 o_stream_nsend_str(ibc->output, END_OF_LIST_LINE"\n"); |
| 14584 | 619 } |
| 620 | |
| 621 static void | |
|
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622 dsync_ibc_stream_send_mailbox_state(struct dsync_ibc *_ibc, |
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623 const struct dsync_mailbox_state *state) |
| 14584 | 624 { |
|
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625 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 626 struct dsync_serializer_encoder *encoder; |
| 627 string_t *str = t_str_new(128); | |
| 628 | |
| 629 str_append_c(str, items[ITEM_MAILBOX_STATE].chr); | |
|
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630 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_MAILBOX_STATE]); |
| 14584 | 631 dsync_serializer_encode_add(encoder, "mailbox_guid", |
| 632 guid_128_to_string(state->mailbox_guid)); | |
| 633 dsync_serializer_encode_add(encoder, "last_uidvalidity", | |
| 634 dec2str(state->last_uidvalidity)); | |
| 635 dsync_serializer_encode_add(encoder, "last_common_uid", | |
| 636 dec2str(state->last_common_uid)); | |
| 637 dsync_serializer_encode_add(encoder, "last_common_modseq", | |
| 638 dec2str(state->last_common_modseq)); | |
| 639 | |
| 640 dsync_serializer_encode_finish(&encoder, str); | |
|
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641 dsync_ibc_stream_send_string(ibc, str); |
| 14584 | 642 } |
| 643 | |
|
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644 static enum dsync_ibc_recv_ret |
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645 dsync_ibc_stream_recv_mailbox_state(struct dsync_ibc *_ibc, |
|
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646 struct dsync_mailbox_state *state_r) |
| 14584 | 647 { |
|
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648 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 649 struct dsync_deserializer_decoder *decoder; |
| 650 const char *value; | |
|
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651 enum dsync_ibc_recv_ret ret; |
| 14584 | 652 |
| 653 memset(state_r, 0, sizeof(*state_r)); | |
| 654 | |
|
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655 ret = dsync_ibc_stream_input_next(ibc, ITEM_MAILBOX_STATE, &decoder); |
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656 if (ret != DSYNC_IBC_RECV_RET_OK) |
| 14584 | 657 return ret; |
| 658 | |
| 659 value = dsync_deserializer_decode_get(decoder, "mailbox_guid"); | |
| 660 if (guid_128_from_string(value, state_r->mailbox_guid) < 0) { | |
|
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661 dsync_ibc_input_error(ibc, decoder, "Invalid mailbox_guid"); |
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662 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 663 } |
| 664 value = dsync_deserializer_decode_get(decoder, "last_uidvalidity"); | |
| 665 if (str_to_uint32(value, &state_r->last_uidvalidity) < 0) { | |
|
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666 dsync_ibc_input_error(ibc, decoder, "Invalid last_uidvalidity"); |
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667 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 668 } |
| 669 value = dsync_deserializer_decode_get(decoder, "last_common_uid"); | |
| 670 if (str_to_uint32(value, &state_r->last_uidvalidity) < 0) { | |
|
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671 dsync_ibc_input_error(ibc, decoder, "Invalid last_common_uid"); |
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672 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 673 } |
| 674 value = dsync_deserializer_decode_get(decoder, "last_common_modseq"); | |
| 675 if (str_to_uint32(value, &state_r->last_uidvalidity) < 0) { | |
|
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676 dsync_ibc_input_error(ibc, decoder, "Invalid last_common_modseq"); |
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677 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 678 } |
|
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679 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 680 } |
| 681 | |
| 682 static void | |
|
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683 dsync_ibc_stream_send_mailbox_tree_node(struct dsync_ibc *_ibc, |
|
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684 const char *const *name, |
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685 const struct dsync_mailbox_node *node) |
| 14584 | 686 { |
|
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687 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 688 struct dsync_serializer_encoder *encoder; |
| 689 string_t *str, *namestr; | |
| 690 | |
| 691 i_assert(*name != NULL); | |
| 692 | |
| 693 str = t_str_new(128); | |
| 694 str_append_c(str, items[ITEM_MAILBOX_TREE_NODE].chr); | |
| 695 | |
| 696 /* convert all hierarchy separators to tabs. mailbox names really | |
| 697 aren't supposed to have any tabs, but escape them anyway if there | |
| 698 are. */ | |
| 699 namestr = t_str_new(128); | |
| 700 for (; *name != NULL; name++) { | |
|
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701 str_append_tabescaped(namestr, *name); |
| 14584 | 702 str_append_c(namestr, '\t'); |
| 703 } | |
| 704 str_truncate(namestr, str_len(namestr)-1); | |
| 705 | |
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706 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_MAILBOX_TREE_NODE]); |
| 14584 | 707 dsync_serializer_encode_add(encoder, "name", str_c(namestr)); |
| 708 switch (node->existence) { | |
| 709 case DSYNC_MAILBOX_NODE_NONEXISTENT: | |
| 710 dsync_serializer_encode_add(encoder, "existence", "n"); | |
| 711 break; | |
| 712 case DSYNC_MAILBOX_NODE_EXISTS: | |
| 713 dsync_serializer_encode_add(encoder, "existence", "y"); | |
| 714 break; | |
| 715 case DSYNC_MAILBOX_NODE_DELETED: | |
| 716 dsync_serializer_encode_add(encoder, "existence", "d"); | |
| 717 break; | |
| 718 } | |
| 719 | |
| 720 if (!guid_128_is_empty(node->mailbox_guid)) { | |
| 721 dsync_serializer_encode_add(encoder, "mailbox_guid", | |
| 722 guid_128_to_string(node->mailbox_guid)); | |
| 723 } | |
| 724 if (node->uid_validity != 0) { | |
| 725 dsync_serializer_encode_add(encoder, "uid_validity", | |
| 726 dec2str(node->uid_validity)); | |
| 727 } | |
|
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728 if (node->uid_next != 0) { |
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729 dsync_serializer_encode_add(encoder, "uid_next", |
|
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730 dec2str(node->uid_next)); |
|
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731 } |
|
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732 if (node->last_renamed_or_created != 0) { |
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733 dsync_serializer_encode_add(encoder, "last_renamed_or_created", |
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734 dec2str(node->last_renamed_or_created)); |
| 14584 | 735 } |
| 736 if (node->last_subscription_change != 0) { | |
| 737 dsync_serializer_encode_add(encoder, "last_subscription_change", | |
| 738 dec2str(node->last_subscription_change)); | |
| 739 } | |
| 740 if (node->subscribed) | |
| 741 dsync_serializer_encode_add(encoder, "subscribed", ""); | |
| 742 dsync_serializer_encode_finish(&encoder, str); | |
|
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743 dsync_ibc_stream_send_string(ibc, str); |
| 14584 | 744 } |
| 745 | |
|
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746 static enum dsync_ibc_recv_ret |
|
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747 dsync_ibc_stream_recv_mailbox_tree_node(struct dsync_ibc *_ibc, |
|
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748 const char *const **name_r, |
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749 const struct dsync_mailbox_node **node_r) |
| 14584 | 750 { |
|
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751 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 752 struct dsync_deserializer_decoder *decoder; |
| 753 struct dsync_mailbox_node *node; | |
| 754 const char *value; | |
|
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755 enum dsync_ibc_recv_ret ret; |
| 14584 | 756 |
|
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757 ret = dsync_ibc_stream_input_next(ibc, ITEM_MAILBOX_TREE_NODE, &decoder); |
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758 if (ret != DSYNC_IBC_RECV_RET_OK) |
| 14584 | 759 return ret; |
| 760 | |
|
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761 p_clear(ibc->ret_pool); |
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762 node = p_new(ibc->ret_pool, struct dsync_mailbox_node, 1); |
| 14584 | 763 |
| 764 value = dsync_deserializer_decode_get(decoder, "name"); | |
| 765 if (*value == '\0') { | |
|
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766 dsync_ibc_input_error(ibc, decoder, "Empty name"); |
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767 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 768 } |
|
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769 *name_r = (void *)p_strsplit_tabescaped(ibc->ret_pool, value); |
| 14584 | 770 |
| 771 value = dsync_deserializer_decode_get(decoder, "existence"); | |
| 772 switch (*value) { | |
| 773 case 'n': | |
| 774 node->existence = DSYNC_MAILBOX_NODE_NONEXISTENT; | |
| 775 break; | |
| 776 case 'y': | |
| 777 node->existence = DSYNC_MAILBOX_NODE_EXISTS; | |
| 778 break; | |
| 779 case 'd': | |
| 780 node->existence = DSYNC_MAILBOX_NODE_DELETED; | |
| 781 break; | |
| 782 } | |
| 783 | |
| 784 if (dsync_deserializer_decode_try(decoder, "mailbox_guid", &value) && | |
| 785 guid_128_from_string(value, node->mailbox_guid) < 0) { | |
|
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786 dsync_ibc_input_error(ibc, decoder, "Invalid mailbox_guid"); |
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787 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 788 } |
| 789 if (dsync_deserializer_decode_try(decoder, "uid_validity", &value) && | |
| 790 str_to_uint32(value, &node->uid_validity) < 0) { | |
|
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791 dsync_ibc_input_error(ibc, decoder, "Invalid uid_validity"); |
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792 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 793 } |
|
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794 if (dsync_deserializer_decode_try(decoder, "uid_next", &value) && |
|
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795 str_to_uint32(value, &node->uid_next) < 0) { |
|
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796 dsync_ibc_input_error(ibc, decoder, "Invalid uid_next"); |
|
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797 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
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798 } |
|
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799 if (dsync_deserializer_decode_try(decoder, "last_renamed_or_created", &value) && |
|
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|
800 str_to_time(value, &node->last_renamed_or_created) < 0) { |
|
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|
801 dsync_ibc_input_error(ibc, decoder, "Invalid last_renamed_or_created"); |
|
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|
802 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 803 } |
| 804 if (dsync_deserializer_decode_try(decoder, "last_subscription_change", &value) && | |
| 805 str_to_time(value, &node->last_subscription_change) < 0) { | |
|
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|
806 dsync_ibc_input_error(ibc, decoder, "Invalid last_subscription_change"); |
|
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|
807 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 808 } |
| 809 if (dsync_deserializer_decode_try(decoder, "subscribed", &value)) | |
| 810 node->subscribed = TRUE; | |
| 811 | |
| 812 *node_r = node; | |
|
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813 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 814 } |
| 815 | |
| 816 static void | |
|
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817 dsync_ibc_stream_send_mailbox_deletes(struct dsync_ibc *_ibc, |
|
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818 const struct dsync_mailbox_delete *deletes, |
|
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819 unsigned int count, char hierarchy_sep) |
| 14584 | 820 { |
|
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|
821 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 822 struct dsync_serializer_encoder *encoder; |
|
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823 string_t *str, *substr; |
| 14584 | 824 char sep[2]; |
| 825 unsigned int i; | |
| 826 | |
| 827 str = t_str_new(128); | |
| 828 str_append_c(str, items[ITEM_MAILBOX_DELETE].chr); | |
| 829 | |
|
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|
830 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_MAILBOX_DELETE]); |
| 14584 | 831 sep[0] = hierarchy_sep; sep[1] = '\0'; |
| 832 dsync_serializer_encode_add(encoder, "hierarchy_sep", sep); | |
| 833 | |
|
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834 substr = t_str_new(128); |
| 14584 | 835 for (i = 0; i < count; i++) { |
| 836 if (deletes[i].delete_mailbox) { | |
|
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837 str_append(substr, guid_128_to_string(deletes[i].guid)); |
|
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838 str_printfa(substr, " %ld ", (long)deletes[i].timestamp); |
| 14584 | 839 } |
| 840 } | |
|
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841 if (str_len(substr) > 0) { |
|
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842 str_truncate(substr, str_len(substr)-1); |
| 14584 | 843 dsync_serializer_encode_add(encoder, "mailboxes", |
|
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844 str_c(substr)); |
| 14584 | 845 } |
| 846 | |
|
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|
847 str_truncate(substr, 0); |
| 14584 | 848 for (i = 0; i < count; i++) { |
| 849 if (!deletes[i].delete_mailbox) { | |
|
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850 str_append(substr, guid_128_to_string(deletes[i].guid)); |
|
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851 str_printfa(substr, " %ld ", (long)deletes[i].timestamp); |
| 14584 | 852 } |
| 853 } | |
|
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854 if (str_len(substr) > 0) { |
|
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855 str_truncate(substr, str_len(substr)-1); |
|
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856 dsync_serializer_encode_add(encoder, "dirs", str_c(substr)); |
| 14584 | 857 } |
| 858 dsync_serializer_encode_finish(&encoder, str); | |
|
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|
859 dsync_ibc_stream_send_string(ibc, str); |
| 14584 | 860 } |
| 861 | |
| 862 ARRAY_DEFINE_TYPE(dsync_mailbox_delete, struct dsync_mailbox_delete); | |
| 863 static int | |
| 864 decode_mailbox_deletes(ARRAY_TYPE(dsync_mailbox_delete) *deletes, | |
| 865 const char *value, bool delete_mailbox) | |
| 866 { | |
| 867 struct dsync_mailbox_delete *del; | |
|
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|
868 const char *const *tmp; |
| 14584 | 869 unsigned int i; |
| 870 | |
|
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871 tmp = t_strsplit(value, " "); |
|
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|
872 for (i = 0; tmp[i] != NULL; i += 2) { |
| 14584 | 873 del = array_append_space(deletes); |
| 874 del->delete_mailbox = delete_mailbox; | |
|
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875 if (guid_128_from_string(tmp[i], del->guid) < 0) |
|
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876 return -1; |
|
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877 if (tmp[i+1] == NULL || |
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878 str_to_time(tmp[i+1], &del->timestamp) < 0) |
| 14584 | 879 return -1; |
| 880 } | |
| 881 return 0; | |
| 882 } | |
| 883 | |
|
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884 static enum dsync_ibc_recv_ret |
|
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885 dsync_ibc_stream_recv_mailbox_deletes(struct dsync_ibc *_ibc, |
|
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886 const struct dsync_mailbox_delete **deletes_r, |
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887 unsigned int *count_r, char *hierarchy_sep_r) |
| 14584 | 888 { |
|
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889 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 890 struct dsync_deserializer_decoder *decoder; |
| 891 ARRAY_TYPE(dsync_mailbox_delete) deletes; | |
| 892 const char *value; | |
|
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893 enum dsync_ibc_recv_ret ret; |
| 14584 | 894 |
|
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895 ret = dsync_ibc_stream_input_next(ibc, ITEM_MAILBOX_DELETE, &decoder); |
|
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896 if (ret != DSYNC_IBC_RECV_RET_OK) |
| 14584 | 897 return ret; |
| 898 | |
|
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899 p_clear(ibc->ret_pool); |
|
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900 p_array_init(&deletes, ibc->ret_pool, 16); |
| 14584 | 901 |
| 902 value = dsync_deserializer_decode_get(decoder, "hierarchy_sep"); | |
| 903 if (strlen(value) != 1) { | |
|
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904 dsync_ibc_input_error(ibc, decoder, "Invalid hierarchy_sep"); |
|
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905 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 906 } |
| 907 *hierarchy_sep_r = value[0]; | |
| 908 | |
| 909 if (dsync_deserializer_decode_try(decoder, "mailboxes", &value) && | |
| 910 decode_mailbox_deletes(&deletes, value, TRUE) < 0) { | |
|
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911 dsync_ibc_input_error(ibc, decoder, "Invalid mailboxes"); |
|
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912 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 913 } |
| 914 if (dsync_deserializer_decode_try(decoder, "dirs", &value) && | |
| 915 decode_mailbox_deletes(&deletes, value, FALSE) < 0) { | |
|
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916 dsync_ibc_input_error(ibc, decoder, "Invalid dirs"); |
|
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917 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 918 } |
| 919 *deletes_r = array_get(&deletes, count_r); | |
|
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920 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 921 } |
| 922 | |
| 923 static const char * | |
|
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924 get_cache_fields(struct dsync_ibc_stream *ibc, |
| 14584 | 925 const struct dsync_mailbox *dsync_box) |
| 926 { | |
| 927 struct dsync_serializer_encoder *encoder; | |
| 928 string_t *str; | |
| 929 const struct mailbox_cache_field *cache_fields; | |
| 930 unsigned int i, count; | |
| 931 char decision[3]; | |
| 932 | |
| 933 cache_fields = array_get(&dsync_box->cache_fields, &count); | |
| 934 if (count == 0) | |
| 935 return ""; | |
| 936 | |
| 937 str = t_str_new(128); | |
| 938 for (i = 0; i < count; i++) { | |
| 939 const struct mailbox_cache_field *field = &cache_fields[i]; | |
| 940 | |
|
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941 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_MAILBOX_CACHE_FIELD]); |
| 14584 | 942 dsync_serializer_encode_add(encoder, "name", field->name); |
| 943 | |
| 944 memset(decision, 0, sizeof(decision)); | |
| 945 switch (field->decision & ~MAIL_CACHE_DECISION_FORCED) { | |
| 946 case MAIL_CACHE_DECISION_NO: | |
| 947 decision[0] = 'n'; | |
| 948 break; | |
| 949 case MAIL_CACHE_DECISION_TEMP: | |
| 950 decision[0] = 't'; | |
| 951 break; | |
| 952 case MAIL_CACHE_DECISION_YES: | |
| 953 decision[0] = 'y'; | |
| 954 break; | |
| 955 } | |
| 956 i_assert(decision[0] != '\0'); | |
| 957 if ((field->decision & MAIL_CACHE_DECISION_FORCED) != 0) | |
| 958 decision[1] = 'F'; | |
| 959 dsync_serializer_encode_add(encoder, "decision", decision); | |
| 960 if (field->last_used != 0) { | |
| 961 dsync_serializer_encode_add(encoder, "last_used", | |
| 962 dec2str(field->last_used)); | |
| 963 } | |
| 964 dsync_serializer_encode_finish(&encoder, str); | |
| 965 } | |
| 966 if (i > 0) { | |
| 967 /* remove the trailing LF */ | |
| 968 str_truncate(str, str_len(str)-1); | |
| 969 } | |
| 970 return str_c(str); | |
| 971 } | |
| 972 | |
| 973 static void | |
|
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974 dsync_ibc_stream_send_mailbox(struct dsync_ibc *_ibc, |
|
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975 const struct dsync_mailbox *dsync_box) |
| 14584 | 976 { |
|
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977 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 978 struct dsync_serializer_encoder *encoder; |
| 979 string_t *str = t_str_new(128); | |
| 980 const char *value; | |
| 981 | |
| 982 str_append_c(str, items[ITEM_MAILBOX].chr); | |
|
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983 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_MAILBOX]); |
| 14584 | 984 dsync_serializer_encode_add(encoder, "mailbox_guid", |
| 985 guid_128_to_string(dsync_box->mailbox_guid)); | |
| 986 | |
| 987 if (dsync_box->mailbox_lost) | |
| 988 dsync_serializer_encode_add(encoder, "mailbox_lost", ""); | |
| 989 dsync_serializer_encode_add(encoder, "uid_validity", | |
| 990 dec2str(dsync_box->uid_validity)); | |
| 991 dsync_serializer_encode_add(encoder, "uid_next", | |
| 992 dec2str(dsync_box->uid_next)); | |
| 993 dsync_serializer_encode_add(encoder, "messages_count", | |
| 994 dec2str(dsync_box->messages_count)); | |
| 995 dsync_serializer_encode_add(encoder, "first_recent_uid", | |
| 996 dec2str(dsync_box->first_recent_uid)); | |
| 997 dsync_serializer_encode_add(encoder, "highest_modseq", | |
| 998 dec2str(dsync_box->highest_modseq)); | |
| 999 | |
|
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1000 value = get_cache_fields(ibc, dsync_box); |
| 14584 | 1001 if (value != NULL) |
| 1002 dsync_serializer_encode_add(encoder, "cache_fields", value); | |
| 1003 | |
| 1004 dsync_serializer_encode_finish(&encoder, str); | |
|
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|
1005 dsync_ibc_stream_send_string(ibc, str); |
| 14584 | 1006 } |
| 1007 | |
| 1008 static int | |
|
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|
1009 parse_cache_field(struct dsync_ibc_stream *ibc, struct dsync_mailbox *box, |
| 14584 | 1010 const char *value) |
| 1011 { | |
| 1012 struct dsync_deserializer_decoder *decoder; | |
| 1013 struct mailbox_cache_field field; | |
| 1014 const char *error; | |
| 1015 int ret = 0; | |
| 1016 | |
|
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|
1017 if (dsync_deserializer_decode_begin(ibc->deserializers[ITEM_MAILBOX_CACHE_FIELD], |
| 14584 | 1018 value, &decoder, &error) < 0) { |
|
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|
1019 dsync_ibc_input_error(ibc, NULL, |
| 14584 | 1020 "cache_field: Invalid input: %s", error); |
| 1021 return -1; | |
| 1022 } | |
| 1023 | |
| 1024 memset(&field, 0, sizeof(field)); | |
| 1025 value = dsync_deserializer_decode_get(decoder, "name"); | |
|
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1026 field.name = p_strdup(ibc->ret_pool, value); |
| 14584 | 1027 |
| 1028 value = dsync_deserializer_decode_get(decoder, "decision"); | |
| 1029 switch (*value) { | |
| 1030 case 'n': | |
| 1031 field.decision = MAIL_CACHE_DECISION_NO; | |
| 1032 break; | |
| 1033 case 't': | |
| 1034 field.decision = MAIL_CACHE_DECISION_TEMP; | |
| 1035 break; | |
| 1036 case 'y': | |
| 1037 field.decision = MAIL_CACHE_DECISION_YES; | |
| 1038 break; | |
| 1039 default: | |
|
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|
1040 dsync_ibc_input_error(ibc, decoder, "Invalid decision: %s", |
|
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|
1041 value); |
| 14584 | 1042 ret = -1; |
| 1043 break; | |
| 1044 } | |
| 1045 if (value[1] == 'F') | |
| 1046 field.decision |= MAIL_CACHE_DECISION_FORCED; | |
| 1047 | |
| 1048 if (dsync_deserializer_decode_try(decoder, "last_used", &value) && | |
| 1049 str_to_time(value, &field.last_used) < 0) { | |
|
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|
1050 dsync_ibc_input_error(ibc, decoder, "Invalid last_used"); |
| 14584 | 1051 ret = -1; |
| 1052 } | |
| 1053 array_append(&box->cache_fields, &field, 1); | |
| 1054 | |
| 1055 dsync_deserializer_decode_finish(&decoder); | |
| 1056 return ret; | |
| 1057 } | |
| 1058 | |
|
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|
1059 static enum dsync_ibc_recv_ret |
|
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1060 dsync_ibc_stream_recv_mailbox(struct dsync_ibc *_ibc, |
|
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|
1061 const struct dsync_mailbox **dsync_box_r) |
| 14584 | 1062 { |
|
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1063 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
|
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1064 pool_t pool = ibc->ret_pool; |
| 14584 | 1065 struct dsync_deserializer_decoder *decoder; |
| 1066 struct dsync_mailbox *box; | |
| 1067 const char *value; | |
|
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1068 enum dsync_ibc_recv_ret ret; |
| 14584 | 1069 |
| 1070 p_clear(pool); | |
| 1071 box = p_new(pool, struct dsync_mailbox, 1); | |
| 1072 | |
|
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1073 ret = dsync_ibc_stream_input_next(ibc, ITEM_MAILBOX, &decoder); |
|
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1074 if (ret != DSYNC_IBC_RECV_RET_OK) |
| 14584 | 1075 return ret; |
| 1076 | |
| 1077 value = dsync_deserializer_decode_get(decoder, "mailbox_guid"); | |
| 1078 if (guid_128_from_string(value, box->mailbox_guid) < 0) { | |
|
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1079 dsync_ibc_input_error(ibc, decoder, "Invalid mailbox_guid"); |
|
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1080 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1081 } |
| 1082 | |
| 1083 if (dsync_deserializer_decode_try(decoder, "mailbox_lost", &value)) | |
| 1084 box->mailbox_lost = TRUE; | |
| 1085 value = dsync_deserializer_decode_get(decoder, "uid_validity"); | |
| 1086 if (str_to_uint32(value, &box->uid_validity) < 0) { | |
|
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1087 dsync_ibc_input_error(ibc, decoder, "Invalid uid_validity"); |
|
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1088 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1089 } |
| 1090 value = dsync_deserializer_decode_get(decoder, "uid_next"); | |
| 1091 if (str_to_uint32(value, &box->uid_next) < 0) { | |
|
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1092 dsync_ibc_input_error(ibc, decoder, "Invalid uid_next"); |
|
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1093 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1094 } |
| 1095 value = dsync_deserializer_decode_get(decoder, "messages_count"); | |
| 1096 if (str_to_uint32(value, &box->messages_count) < 0) { | |
|
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1097 dsync_ibc_input_error(ibc, decoder, "Invalid messages_count"); |
|
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1098 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1099 } |
| 1100 value = dsync_deserializer_decode_get(decoder, "first_recent_uid"); | |
| 1101 if (str_to_uint32(value, &box->first_recent_uid) < 0) { | |
|
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1102 dsync_ibc_input_error(ibc, decoder, "Invalid first_recent_uid"); |
|
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1103 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1104 } |
| 1105 value = dsync_deserializer_decode_get(decoder, "highest_modseq"); | |
| 1106 if (str_to_uint64(value, &box->highest_modseq) < 0) { | |
|
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1107 dsync_ibc_input_error(ibc, decoder, "Invalid highest_modseq"); |
|
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1108 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1109 } |
| 1110 | |
| 1111 p_array_init(&box->cache_fields, pool, 32); | |
| 1112 if (dsync_deserializer_decode_try(decoder, "cache_fields", &value)) { | |
| 1113 const char *const *fields = t_strsplit(value, "\n"); | |
| 1114 for (; *fields != NULL; fields++) { | |
|
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1115 if (parse_cache_field(ibc, box, *fields) < 0) |
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1116 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1117 } |
| 1118 } | |
| 1119 | |
| 1120 *dsync_box_r = box; | |
|
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1121 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 1122 } |
| 1123 | |
| 1124 static void | |
|
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1125 dsync_ibc_stream_send_change(struct dsync_ibc *_ibc, |
|
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1126 const struct dsync_mail_change *change) |
| 14584 | 1127 { |
|
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1128 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 1129 struct dsync_serializer_encoder *encoder; |
| 1130 string_t *str = t_str_new(128); | |
| 1131 char type[2]; | |
| 1132 | |
| 1133 str_append_c(str, items[ITEM_MAIL_CHANGE].chr); | |
|
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1134 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_MAIL_CHANGE]); |
| 14584 | 1135 |
| 1136 type[0] = type[1] = '\0'; | |
| 1137 switch (change->type) { | |
| 1138 case DSYNC_MAIL_CHANGE_TYPE_SAVE: | |
| 1139 type[0] = 's'; | |
| 1140 break; | |
| 1141 case DSYNC_MAIL_CHANGE_TYPE_EXPUNGE: | |
| 1142 type[0] = 'e'; | |
| 1143 break; | |
| 1144 case DSYNC_MAIL_CHANGE_TYPE_FLAG_CHANGE: | |
| 1145 type[0] = 'f'; | |
| 1146 break; | |
| 1147 } | |
| 1148 i_assert(type[0] != '\0'); | |
| 1149 dsync_serializer_encode_add(encoder, "type", type); | |
| 1150 dsync_serializer_encode_add(encoder, "uid", dec2str(change->uid)); | |
| 1151 if (change->guid != NULL) | |
| 1152 dsync_serializer_encode_add(encoder, "guid", change->guid); | |
| 1153 if (change->hdr_hash != NULL) { | |
| 1154 dsync_serializer_encode_add(encoder, "hdr_hash", | |
| 1155 change->hdr_hash); | |
| 1156 } | |
| 1157 if (change->modseq != 0) { | |
| 1158 dsync_serializer_encode_add(encoder, "modseq", | |
| 1159 dec2str(change->modseq)); | |
| 1160 } | |
| 1161 if (change->save_timestamp != 0) { | |
| 1162 dsync_serializer_encode_add(encoder, "save_timestamp", | |
| 1163 dec2str(change->save_timestamp)); | |
| 1164 } | |
| 1165 if (change->add_flags != 0) { | |
| 1166 dsync_serializer_encode_add(encoder, "add_flags", | |
| 1167 t_strdup_printf("%x", change->add_flags)); | |
| 1168 } | |
| 1169 if (change->remove_flags != 0) { | |
| 1170 dsync_serializer_encode_add(encoder, "remove_flags", | |
| 1171 t_strdup_printf("%x", change->remove_flags)); | |
| 1172 } | |
| 1173 if (change->final_flags != 0) { | |
| 1174 dsync_serializer_encode_add(encoder, "final_flags", | |
| 1175 t_strdup_printf("%x", change->final_flags)); | |
| 1176 } | |
| 1177 if (change->keywords_reset) | |
| 1178 dsync_serializer_encode_add(encoder, "keywords_reset", ""); | |
| 1179 | |
| 1180 if (array_is_created(&change->keyword_changes) && | |
| 1181 array_count(&change->keyword_changes) > 0) { | |
| 1182 string_t *kw_str = t_str_new(128); | |
| 1183 const char *const *changes; | |
| 1184 unsigned int i, count; | |
| 1185 | |
| 1186 changes = array_get(&change->keyword_changes, &count); | |
|
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1187 str_append_tabescaped(kw_str, changes[0]); |
| 14584 | 1188 for (i = 1; i < count; i++) { |
| 1189 str_append_c(kw_str, '\t'); | |
|
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1190 str_append_tabescaped(kw_str, changes[i]); |
| 14584 | 1191 } |
| 1192 dsync_serializer_encode_add(encoder, "keyword_changes", | |
| 1193 str_c(kw_str)); | |
| 1194 } | |
| 1195 | |
| 1196 dsync_serializer_encode_finish(&encoder, str); | |
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1197 dsync_ibc_stream_send_string(ibc, str); |
| 14584 | 1198 } |
| 1199 | |
|
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1200 static enum dsync_ibc_recv_ret |
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1201 dsync_ibc_stream_recv_change(struct dsync_ibc *_ibc, |
|
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1202 const struct dsync_mail_change **change_r) |
| 14584 | 1203 { |
|
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1204 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
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1205 pool_t pool = ibc->ret_pool; |
| 14584 | 1206 struct dsync_deserializer_decoder *decoder; |
| 1207 struct dsync_mail_change *change; | |
| 1208 const char *value; | |
|
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1209 enum dsync_ibc_recv_ret ret; |
| 14584 | 1210 |
| 1211 p_clear(pool); | |
| 1212 change = p_new(pool, struct dsync_mail_change, 1); | |
| 1213 | |
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1214 ret = dsync_ibc_stream_input_next(ibc, ITEM_MAIL_CHANGE, &decoder); |
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1215 if (ret != DSYNC_IBC_RECV_RET_OK) |
| 14584 | 1216 return ret; |
| 1217 | |
| 1218 value = dsync_deserializer_decode_get(decoder, "type"); | |
| 1219 switch (*value) { | |
| 1220 case 's': | |
| 1221 change->type = DSYNC_MAIL_CHANGE_TYPE_SAVE; | |
| 1222 break; | |
| 1223 case 'e': | |
| 1224 change->type = DSYNC_MAIL_CHANGE_TYPE_EXPUNGE; | |
| 1225 break; | |
| 1226 case 'f': | |
| 1227 change->type = DSYNC_MAIL_CHANGE_TYPE_FLAG_CHANGE; | |
| 1228 break; | |
| 1229 default: | |
|
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1230 dsync_ibc_input_error(ibc, decoder, "Invalid type: %s", value); |
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1231 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1232 } |
| 1233 | |
| 1234 value = dsync_deserializer_decode_get(decoder, "uid"); | |
| 1235 if (str_to_uint32(value, &change->uid) < 0) { | |
|
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1236 dsync_ibc_input_error(ibc, decoder, "Invalid uid"); |
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1237 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1238 } |
| 1239 | |
| 1240 if (dsync_deserializer_decode_try(decoder, "guid", &value)) | |
| 1241 change->guid = p_strdup(pool, value); | |
| 1242 if (dsync_deserializer_decode_try(decoder, "hdr_hash", &value)) | |
| 1243 change->hdr_hash = p_strdup(pool, value); | |
| 1244 if (dsync_deserializer_decode_try(decoder, "modseq", &value) && | |
| 1245 str_to_uint64(value, &change->modseq) < 0) { | |
|
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1246 dsync_ibc_input_error(ibc, decoder, "Invalid modseq"); |
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1247 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1248 } |
| 1249 if (dsync_deserializer_decode_try(decoder, "save_timestamp", &value) && | |
| 1250 str_to_time(value, &change->save_timestamp) < 0) { | |
|
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1251 dsync_ibc_input_error(ibc, decoder, "Invalid save_timestamp"); |
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1252 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1253 } |
| 1254 | |
| 1255 if (dsync_deserializer_decode_try(decoder, "add_flags", &value)) | |
| 1256 change->add_flags = strtoul(value, NULL, 16); | |
| 1257 if (dsync_deserializer_decode_try(decoder, "remove_flags", &value)) | |
| 1258 change->remove_flags = strtoul(value, NULL, 16); | |
| 1259 if (dsync_deserializer_decode_try(decoder, "final_flags", &value)) | |
| 1260 change->final_flags = strtoul(value, NULL, 16); | |
| 1261 if (dsync_deserializer_decode_try(decoder, "keywords_reset", &value)) | |
| 1262 change->keywords_reset = TRUE; | |
| 1263 | |
| 1264 if (dsync_deserializer_decode_try(decoder, "keyword_changes", &value) && | |
| 1265 *value != '\0') { | |
| 1266 const char *const *changes = t_strsplit_tab(value); | |
| 1267 unsigned int i, count = str_array_length(changes); | |
| 1268 | |
| 1269 p_array_init(&change->keyword_changes, pool, count); | |
| 1270 for (i = 0; i < count; i++) { | |
| 1271 value = p_strdup(pool, changes[i]); | |
| 1272 array_append(&change->keyword_changes, &value, 1); | |
| 1273 } | |
| 1274 } | |
| 1275 | |
| 1276 *change_r = change; | |
|
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1277 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 1278 } |
| 1279 | |
| 1280 static void | |
|
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1281 dsync_ibc_stream_send_mail_request(struct dsync_ibc *_ibc, |
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1282 const struct dsync_mail_request *request) |
| 14584 | 1283 { |
|
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1284 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 1285 struct dsync_serializer_encoder *encoder; |
| 1286 string_t *str = t_str_new(128); | |
| 1287 | |
| 1288 str_append_c(str, items[ITEM_MAIL_REQUEST].chr); | |
|
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1289 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_MAIL_REQUEST]); |
| 14584 | 1290 if (request->guid != NULL) |
| 1291 dsync_serializer_encode_add(encoder, "guid", request->guid); | |
| 1292 if (request->uid != 0) { | |
| 1293 dsync_serializer_encode_add(encoder, "uid", | |
| 1294 dec2str(request->uid)); | |
| 1295 } | |
| 1296 dsync_serializer_encode_finish(&encoder, str); | |
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1297 dsync_ibc_stream_send_string(ibc, str); |
| 14584 | 1298 } |
| 1299 | |
|
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1300 static enum dsync_ibc_recv_ret |
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1301 dsync_ibc_stream_recv_mail_request(struct dsync_ibc *_ibc, |
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1302 const struct dsync_mail_request **request_r) |
| 14584 | 1303 { |
|
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1304 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 1305 struct dsync_deserializer_decoder *decoder; |
| 1306 struct dsync_mail_request *request; | |
| 1307 const char *value; | |
|
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1308 enum dsync_ibc_recv_ret ret; |
| 14584 | 1309 |
|
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1310 p_clear(ibc->ret_pool); |
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1311 request = p_new(ibc->ret_pool, struct dsync_mail_request, 1); |
| 14584 | 1312 |
|
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1313 ret = dsync_ibc_stream_input_next(ibc, ITEM_MAIL_REQUEST, &decoder); |
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1314 if (ret != DSYNC_IBC_RECV_RET_OK) |
| 14584 | 1315 return ret; |
| 1316 | |
| 1317 if (dsync_deserializer_decode_try(decoder, "guid", &value)) | |
|
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1318 request->guid = p_strdup(ibc->ret_pool, value); |
| 14584 | 1319 if (dsync_deserializer_decode_try(decoder, "uid", &value) && |
| 1320 str_to_uint32(value, &request->uid) < 0) { | |
|
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1321 dsync_ibc_input_error(ibc, decoder, "Invalid uid"); |
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1322 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1323 } |
| 1324 | |
| 1325 *request_r = request; | |
|
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1326 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 1327 } |
| 1328 | |
| 1329 static void | |
|
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1330 dsync_ibc_stream_send_mail(struct dsync_ibc *_ibc, |
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1331 const struct dsync_mail *mail) |
| 14584 | 1332 { |
|
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1333 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 1334 struct dsync_serializer_encoder *encoder; |
| 1335 string_t *str = t_str_new(128); | |
| 1336 | |
|
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1337 i_assert(ibc->mail_output == NULL); |
| 14584 | 1338 |
| 1339 str_append_c(str, items[ITEM_MAIL].chr); | |
|
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1340 encoder = dsync_serializer_encode_begin(ibc->serializers[ITEM_MAIL]); |
| 14584 | 1341 if (mail->guid != NULL) |
| 1342 dsync_serializer_encode_add(encoder, "guid", mail->guid); | |
| 1343 if (mail->uid != 0) | |
| 1344 dsync_serializer_encode_add(encoder, "uid", dec2str(mail->uid)); | |
| 1345 if (mail->pop3_uidl != NULL) { | |
| 1346 dsync_serializer_encode_add(encoder, "pop3_uidl", | |
| 1347 mail->pop3_uidl); | |
| 1348 } | |
| 1349 if (mail->pop3_order > 0) { | |
| 1350 dsync_serializer_encode_add(encoder, "pop3_order", | |
| 1351 dec2str(mail->pop3_order)); | |
| 1352 } | |
| 1353 if (mail->received_date > 0) { | |
| 1354 dsync_serializer_encode_add(encoder, "received_date", | |
| 1355 dec2str(mail->received_date)); | |
| 1356 } | |
| 1357 if (mail->input != NULL) | |
| 1358 dsync_serializer_encode_add(encoder, "stream", ""); | |
| 1359 | |
| 1360 dsync_serializer_encode_finish(&encoder, str); | |
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1361 dsync_ibc_stream_send_string(ibc, str); |
| 14584 | 1362 |
| 1363 if (mail->input != NULL) { | |
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1364 ibc->mail_output_last = '\0'; |
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1365 ibc->mail_output = mail->input; |
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1366 i_stream_ref(ibc->mail_output); |
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1367 (void)dsync_ibc_stream_send_mail_stream(ibc); |
| 14584 | 1368 } |
| 1369 } | |
| 1370 | |
| 1371 static int seekable_fd_callback(const char **path_r, void *context) | |
| 1372 { | |
|
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1373 struct dsync_ibc_stream *ibc = context; |
| 14584 | 1374 string_t *path; |
| 1375 int fd; | |
| 1376 | |
| 1377 path = t_str_new(128); | |
|
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|
1378 str_append(path, ibc->temp_path_prefix); |
| 14584 | 1379 fd = safe_mkstemp(path, 0600, (uid_t)-1, (gid_t)-1); |
| 1380 if (fd == -1) { | |
| 1381 i_error("safe_mkstemp(%s) failed: %m", str_c(path)); | |
| 1382 return -1; | |
| 1383 } | |
| 1384 | |
| 1385 /* we just want the fd, unlink it */ | |
| 1386 if (unlink(str_c(path)) < 0) { | |
| 1387 /* shouldn't happen.. */ | |
| 1388 i_error("unlink(%s) failed: %m", str_c(path)); | |
|
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|
1389 i_close_fd(&fd); |
| 14584 | 1390 return -1; |
| 1391 } | |
| 1392 | |
| 1393 *path_r = str_c(path); | |
| 1394 return fd; | |
| 1395 } | |
| 1396 | |
|
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|
1397 static enum dsync_ibc_recv_ret |
|
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|
1398 dsync_ibc_stream_recv_mail(struct dsync_ibc *_ibc, struct dsync_mail **mail_r) |
| 14584 | 1399 { |
|
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|
1400 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
|
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|
1401 pool_t pool = ibc->ret_pool; |
| 14584 | 1402 struct dsync_deserializer_decoder *decoder; |
| 1403 struct dsync_mail *mail; | |
| 1404 struct istream *inputs[2]; | |
| 1405 const char *value; | |
|
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|
1406 enum dsync_ibc_recv_ret ret; |
| 14584 | 1407 |
|
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|
1408 if (ibc->mail_input != NULL) { |
| 14584 | 1409 /* wait until the mail's stream has been read */ |
|
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|
1410 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1411 } |
|
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|
1412 if (ibc->cur_mail != NULL) { |
| 14584 | 1413 /* finished reading the stream, return the mail now */ |
|
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1414 *mail_r = ibc->cur_mail; |
|
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1415 ibc->cur_mail = NULL; |
|
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|
1416 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 1417 } |
| 1418 | |
| 1419 p_clear(pool); | |
| 1420 mail = p_new(pool, struct dsync_mail, 1); | |
| 1421 | |
|
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|
1422 ret = dsync_ibc_stream_input_next(ibc, ITEM_MAIL, &decoder); |
|
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1423 if (ret != DSYNC_IBC_RECV_RET_OK) |
| 14584 | 1424 return ret; |
| 1425 | |
| 1426 if (dsync_deserializer_decode_try(decoder, "guid", &value)) | |
| 1427 mail->guid = p_strdup(pool, value); | |
| 1428 if (dsync_deserializer_decode_try(decoder, "uid", &value) && | |
| 1429 str_to_uint32(value, &mail->uid) < 0) { | |
|
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|
1430 dsync_ibc_input_error(ibc, decoder, "Invalid uid"); |
|
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|
1431 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1432 } |
| 1433 if (dsync_deserializer_decode_try(decoder, "pop3_uidl", &value)) | |
| 1434 mail->pop3_uidl = p_strdup(pool, value); | |
| 1435 if (dsync_deserializer_decode_try(decoder, "pop3_order", &value) && | |
| 1436 str_to_uint(value, &mail->pop3_order) < 0) { | |
|
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|
1437 dsync_ibc_input_error(ibc, decoder, "Invalid pop3_order"); |
|
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|
1438 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1439 } |
| 1440 if (dsync_deserializer_decode_try(decoder, "received_date", &value) && | |
| 1441 str_to_time(value, &mail->received_date) < 0) { | |
|
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|
1442 dsync_ibc_input_error(ibc, decoder, "Invalid received_date"); |
|
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1443 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1444 } |
| 1445 if (dsync_deserializer_decode_try(decoder, "stream", &value)) { | |
|
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|
1446 inputs[0] = i_stream_create_dot(ibc->input, FALSE); |
| 14584 | 1447 inputs[1] = NULL; |
| 1448 mail->input = i_stream_create_seekable(inputs, | |
|
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|
1449 MAIL_READ_FULL_BLOCK_SIZE, seekable_fd_callback, ibc); |
| 14584 | 1450 i_stream_unref(&inputs[0]); |
| 1451 | |
|
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1452 ibc->mail_input = mail->input; |
|
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|
1453 if (dsync_ibc_stream_read_mail_stream(ibc) <= 0) { |
|
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1454 ibc->cur_mail = mail; |
|
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1455 return DSYNC_IBC_RECV_RET_TRYAGAIN; |
| 14584 | 1456 } |
| 1457 /* already finished reading the stream */ | |
|
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|
1458 i_assert(ibc->mail_input == NULL); |
| 14584 | 1459 } |
| 1460 | |
| 1461 *mail_r = mail; | |
|
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|
1462 return DSYNC_IBC_RECV_RET_OK; |
| 14584 | 1463 } |
| 1464 | |
|
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|
1465 static void dsync_ibc_stream_flush(struct dsync_ibc *_ibc) |
| 14584 | 1466 { |
|
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1467 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 1468 |
|
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|
1469 o_stream_uncork(ibc->output); |
|
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1470 o_stream_cork(ibc->output); |
| 14584 | 1471 } |
| 1472 | |
|
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|
1473 static bool dsync_ibc_stream_is_send_queue_full(struct dsync_ibc *_ibc) |
| 14584 | 1474 { |
|
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|
1475 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 1476 size_t bytes; |
| 1477 | |
|
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|
1478 if (ibc->mail_output != NULL) |
| 14584 | 1479 return TRUE; |
| 1480 | |
|
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|
1481 bytes = o_stream_get_buffer_used_size(ibc->output); |
|
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|
1482 if (bytes < DSYNC_IBC_STREAM_OUTBUF_THROTTLE_SIZE) |
| 14584 | 1483 return FALSE; |
| 1484 | |
|
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|
1485 o_stream_set_flush_pending(ibc->output, TRUE); |
| 14584 | 1486 return TRUE; |
| 1487 } | |
| 1488 | |
|
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|
1489 static bool dsync_ibc_stream_has_pending_data(struct dsync_ibc *_ibc) |
| 14584 | 1490 { |
|
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|
1491 struct dsync_ibc_stream *ibc = (struct dsync_ibc_stream *)_ibc; |
| 14584 | 1492 |
|
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|
1493 return ibc->has_pending_data; |
| 14584 | 1494 } |
| 1495 | |
|
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|
1496 static const struct dsync_ibc_vfuncs dsync_ibc_stream_vfuncs = { |
|
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|
1497 dsync_ibc_stream_deinit, |
|
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|
1498 dsync_ibc_stream_send_handshake, |
|
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|
1499 dsync_ibc_stream_recv_handshake, |
|
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|
1500 dsync_ibc_stream_send_end_of_list, |
|
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|
1501 dsync_ibc_stream_send_mailbox_state, |
|
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|
1502 dsync_ibc_stream_recv_mailbox_state, |
|
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|
1503 dsync_ibc_stream_send_mailbox_tree_node, |
|
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|
1504 dsync_ibc_stream_recv_mailbox_tree_node, |
|
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|
1505 dsync_ibc_stream_send_mailbox_deletes, |
|
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|
1506 dsync_ibc_stream_recv_mailbox_deletes, |
|
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|
1507 dsync_ibc_stream_send_mailbox, |
|
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|
1508 dsync_ibc_stream_recv_mailbox, |
|
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1509 dsync_ibc_stream_send_change, |
|
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|
1510 dsync_ibc_stream_recv_change, |
|
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|
1511 dsync_ibc_stream_send_mail_request, |
|
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|
1512 dsync_ibc_stream_recv_mail_request, |
|
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|
1513 dsync_ibc_stream_send_mail, |
|
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|
1514 dsync_ibc_stream_recv_mail, |
|
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1515 dsync_ibc_stream_flush, |
|
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1516 dsync_ibc_stream_is_send_queue_full, |
|
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|
1517 dsync_ibc_stream_has_pending_data |
| 14584 | 1518 }; |
| 1519 | |
|
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|
1520 struct dsync_ibc * |
|
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|
1521 dsync_ibc_init_stream(struct istream *input, struct ostream *output, |
|
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1522 const char *name, const char *temp_path_prefix) |
| 14584 | 1523 { |
|
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|
1524 struct dsync_ibc_stream *ibc; |
| 14584 | 1525 |
|
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|
1526 ibc = i_new(struct dsync_ibc_stream, 1); |
|
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|
1527 ibc->ibc.v = dsync_ibc_stream_vfuncs; |
|
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|
1528 ibc->input = input; |
|
af3b86a16ac3
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|
1529 ibc->output = output; |
|
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|
1530 ibc->fd_in = i_stream_get_fd(input); |
|
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|
1531 ibc->name = i_strdup(name); |
|
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|
1532 ibc->temp_path_prefix = i_strdup(temp_path_prefix); |
|
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|
1533 ibc->ret_pool = pool_alloconly_create("ibc stream data", 2048); |
|
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|
1534 dsync_ibc_stream_init(ibc); |
|
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|
1535 return &ibc->ibc; |
| 14584 | 1536 } |