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7c673cae FG |
1 | #include <errno.h> |
2 | #include <stdlib.h> | |
3 | ||
4 | #include <sstream> | |
5 | ||
6 | #include "rgw_torrent.h" | |
7 | #include "include/str_list.h" | |
8 | #include "include/rados/librados.hpp" | |
9 | ||
10 | #define dout_subsys ceph_subsys_rgw | |
11 | ||
12 | using namespace std; | |
13 | using ceph::crypto::MD5; | |
14 | using namespace librados; | |
15 | using namespace boost; | |
16 | using ceph::crypto::SHA1; | |
17 | ||
18 | seed::seed() | |
19 | { | |
20 | seed::info.piece_length = 0; | |
21 | seed::info.len = 0; | |
22 | sha_len = 0; | |
23 | is_torrent = false; | |
24 | } | |
25 | ||
26 | seed::~seed() | |
27 | { | |
28 | seed::info.sha1_bl.clear(); | |
29 | bl.clear(); | |
7c673cae FG |
30 | s = NULL; |
31 | store = NULL; | |
32 | } | |
33 | ||
34 | void seed::init(struct req_state *p_req, RGWRados *p_store) | |
35 | { | |
36 | s = p_req; | |
37 | store = p_store; | |
38 | } | |
39 | ||
40 | void seed::get_torrent_file(int &op_ret, RGWRados::Object::Read &read_op, uint64_t &total_len, | |
41 | bufferlist &bl_data, rgw_obj &obj) | |
42 | { | |
43 | /* add other field if config is set */ | |
44 | dencode.bencode_dict(bl); | |
45 | set_announce(); | |
46 | if (!comment.empty()) | |
47 | { | |
48 | dencode.bencode(COMMENT, comment, bl); | |
49 | } | |
50 | if (!create_by.empty()) | |
51 | { | |
52 | dencode.bencode(CREATED_BY, create_by, bl); | |
53 | } | |
54 | if (!encoding.empty()) | |
55 | { | |
56 | dencode.bencode(ENCODING, encoding, bl); | |
57 | } | |
58 | ||
59 | string oid, key; | |
60 | map<string, bufferlist> m; | |
61 | set<string> obj_key; | |
62 | get_obj_bucket_and_oid_loc(obj, oid, key); | |
63 | ldout(s->cct, 0) << "NOTICE: head obj oid= " << oid << dendl; | |
64 | ||
65 | obj_key.insert(RGW_OBJ_TORRENT); | |
66 | op_ret = read_op.state.io_ctx.omap_get_vals_by_keys(oid, obj_key, &m); | |
67 | if (op_ret < 0) | |
68 | { | |
69 | ldout(s->cct, 0) << "ERROR: failed to omap_get_vals_by_keys op_ret = " << op_ret << dendl; | |
70 | return; | |
71 | } | |
72 | ||
73 | map<string, bufferlist>::iterator iter; | |
74 | for (iter = m.begin(); iter != m.end(); ++iter) | |
75 | { | |
76 | bufferlist bl_tmp = iter->second; | |
77 | char *pbuff = bl_tmp.c_str(); | |
78 | bl.append(pbuff, bl_tmp.length()); | |
79 | } | |
80 | dencode.bencode_end(bl); | |
81 | ||
82 | bl_data = bl; | |
83 | total_len = bl.length(); | |
84 | return; | |
85 | } | |
86 | ||
87 | bool seed::get_flag() | |
88 | { | |
89 | return is_torrent; | |
90 | } | |
91 | ||
31f18b77 | 92 | void seed::update(bufferlist &bl) |
7c673cae FG |
93 | { |
94 | if (!is_torrent) | |
95 | { | |
96 | return; | |
97 | } | |
7c673cae | 98 | info.len += bl.length(); |
31f18b77 FG |
99 | sha1(&h, bl, bl.length()); |
100 | } | |
101 | ||
102 | int seed::complete() | |
103 | { | |
104 | uint64_t remain = info.len%info.piece_length; | |
105 | uint8_t remain_len = ((remain > 0)? 1 : 0); | |
106 | sha_len = (info.len/info.piece_length + remain_len)*CEPH_CRYPTO_SHA1_DIGESTSIZE; | |
107 | ||
108 | int ret = 0; | |
109 | /* produce torrent data */ | |
110 | do_encode(); | |
111 | ||
112 | /* save torrent data into OMAP */ | |
113 | ret = save_torrent_file(); | |
114 | if (0 != ret) | |
115 | { | |
116 | ldout(s->cct, 0) << "ERROR: failed to save_torrent_file() ret= "<< ret << dendl; | |
117 | return ret; | |
118 | } | |
119 | ||
120 | return 0; | |
7c673cae FG |
121 | } |
122 | ||
123 | off_t seed::get_data_len() | |
124 | { | |
125 | return info.len; | |
126 | } | |
127 | ||
128 | void seed::set_create_date(ceph::real_time& value) | |
129 | { | |
130 | utime_t date = ceph::real_clock::to_timespec(value); | |
131 | create_date = date.sec(); | |
132 | } | |
133 | ||
134 | void seed::set_info_pieces(char *buff) | |
135 | { | |
136 | info.sha1_bl.append(buff, CEPH_CRYPTO_SHA1_DIGESTSIZE); | |
137 | } | |
138 | ||
139 | void seed::set_info_name(const string& value) | |
140 | { | |
141 | info.name = value; | |
142 | } | |
143 | ||
144 | void seed::sha1(SHA1 *h, bufferlist &bl, off_t bl_len) | |
145 | { | |
146 | off_t num = bl_len/info.piece_length; | |
147 | off_t remain = 0; | |
148 | remain = bl_len%info.piece_length; | |
149 | ||
150 | char *pstr = bl.c_str(); | |
151 | char sha[25]; | |
152 | ||
153 | /* get sha1 */ | |
154 | for (off_t i = 0; i < num; i++) | |
155 | { | |
156 | memset(sha, 0x00, sizeof(sha)); | |
157 | h->Update((byte *)pstr, info.piece_length); | |
158 | h->Final((byte *)sha); | |
159 | set_info_pieces(sha); | |
160 | pstr += info.piece_length; | |
161 | } | |
162 | ||
163 | /* process remain */ | |
164 | if (0 != remain) | |
165 | { | |
166 | memset(sha, 0x00, sizeof(sha)); | |
167 | h->Update((byte *)pstr, remain); | |
168 | h->Final((byte *)sha); | |
169 | set_info_pieces(sha); | |
170 | } | |
171 | } | |
172 | ||
7c673cae FG |
173 | int seed::get_params() |
174 | { | |
175 | is_torrent = true; | |
176 | info.piece_length = g_conf->rgw_torrent_sha_unit; | |
177 | create_by = g_conf->rgw_torrent_createby; | |
178 | encoding = g_conf->rgw_torrent_encoding; | |
179 | origin = g_conf->rgw_torrent_origin; | |
180 | comment = g_conf->rgw_torrent_comment; | |
181 | announce = g_conf->rgw_torrent_tracker; | |
182 | ||
183 | /* tracker and tracker list is empty, set announce to origin */ | |
184 | if (announce.empty() && !origin.empty()) | |
185 | { | |
186 | announce = origin; | |
187 | } | |
188 | ||
189 | return 0; | |
190 | } | |
191 | ||
192 | void seed::set_announce() | |
193 | { | |
194 | list<string> announce_list; // used to get announce list from conf | |
195 | get_str_list(announce, ",", announce_list); | |
196 | ||
197 | if (announce_list.empty()) | |
198 | { | |
199 | ldout(s->cct, 5) << "NOTICE: announce_list is empty " << dendl; | |
200 | return; | |
201 | } | |
202 | ||
203 | list<string>::iterator iter = announce_list.begin(); | |
204 | dencode.bencode_key(ANNOUNCE, bl); | |
205 | dencode.bencode_key((*iter), bl); | |
206 | ||
207 | dencode.bencode_key(ANNOUNCE_LIST, bl); | |
208 | dencode.bencode_list(bl); | |
209 | for (; iter != announce_list.end(); ++iter) | |
210 | { | |
211 | dencode.bencode_list(bl); | |
212 | dencode.bencode_key((*iter), bl); | |
213 | dencode.bencode_end(bl); | |
214 | } | |
215 | dencode.bencode_end(bl); | |
216 | } | |
217 | ||
218 | void seed::do_encode() | |
219 | { | |
220 | /*Only encode create_date and sha1 info*/ | |
221 | /*Other field will be added if confi is set when run get torrent*/ | |
222 | dencode.bencode(CREATION_DATE, create_date, bl); | |
223 | ||
224 | dencode.bencode_key(INFO_PIECES, bl); | |
225 | dencode.bencode_dict(bl); | |
226 | dencode.bencode(LENGTH, info.len, bl); | |
227 | dencode.bencode(NAME, info.name, bl); | |
228 | dencode.bencode(PIECE_LENGTH, info.piece_length, bl); | |
229 | ||
230 | char info_sha[100] = { 0 }; | |
231 | sprintf(info_sha, "%" PRIu64, sha_len); | |
232 | string sha_len_str = info_sha; | |
233 | dencode.bencode_key(PIECES, bl); | |
234 | bl.append(sha_len_str.c_str(), sha_len_str.length()); | |
235 | bl.append(':'); | |
236 | bl.append(info.sha1_bl.c_str(), sha_len); | |
237 | dencode.bencode_end(bl); | |
238 | } | |
239 | ||
240 | int seed::save_torrent_file() | |
241 | { | |
242 | int op_ret = 0; | |
243 | string key = RGW_OBJ_TORRENT; | |
244 | rgw_obj obj(s->bucket, s->object.name); | |
245 | ||
246 | rgw_raw_obj raw_obj; | |
247 | store->obj_to_raw(s->bucket_info.placement_rule, obj, &raw_obj); | |
248 | ||
249 | op_ret = store->omap_set(raw_obj, key, bl); | |
250 | if (op_ret < 0) | |
251 | { | |
252 | ldout(s->cct, 0) << "ERROR: failed to omap_set() op_ret = " << op_ret << dendl; | |
253 | return op_ret; | |
254 | } | |
255 | ||
256 | return op_ret; | |
257 | } |