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7c673cae FG |
1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | ||
4 | #include <errno.h> | |
5 | #include <vector> | |
6 | #include <algorithm> | |
7 | #include <string> | |
8 | #include <boost/tokenizer.hpp> | |
9 | #include <boost/algorithm/string.hpp> | |
31f18b77 | 10 | #include <boost/utility/string_view.hpp> |
7c673cae FG |
11 | |
12 | #include "json_spirit/json_spirit.h" | |
13 | #include "common/ceph_json.h" | |
14 | ||
31f18b77 | 15 | #include "rgw_op.h" |
7c673cae FG |
16 | #include "rgw_common.h" |
17 | #include "rgw_acl.h" | |
18 | #include "rgw_string.h" | |
19 | #include "rgw_rados.h" | |
31f18b77 | 20 | #include "rgw_http_errors.h" |
7c673cae FG |
21 | |
22 | #include "common/ceph_crypto.h" | |
23 | #include "common/armor.h" | |
24 | #include "common/errno.h" | |
25 | #include "common/Clock.h" | |
26 | #include "common/Formatter.h" | |
27 | #include "common/perf_counters.h" | |
28 | #include "common/strtol.h" | |
29 | #include "include/str_list.h" | |
30 | #include "auth/Crypto.h" | |
31 | #include "rgw_crypt_sanitize.h" | |
32 | ||
33 | #include <sstream> | |
34 | ||
35 | #define dout_context g_ceph_context | |
36 | #define dout_subsys ceph_subsys_rgw | |
37 | ||
31f18b77 FG |
38 | using boost::none; |
39 | using boost::optional; | |
40 | ||
41 | using rgw::IAM::ARN; | |
42 | using rgw::IAM::Effect; | |
43 | using rgw::IAM::op_to_perm; | |
44 | using rgw::IAM::Policy; | |
7c673cae FG |
45 | |
46 | PerfCounters *perfcounter = NULL; | |
47 | ||
48 | const uint32_t RGWBucketInfo::NUM_SHARDS_BLIND_BUCKET(UINT32_MAX); | |
49 | ||
31f18b77 FG |
50 | rgw_http_errors rgw_http_s3_errors({ |
51 | { 0, {200, "" }}, | |
52 | { STATUS_CREATED, {201, "Created" }}, | |
53 | { STATUS_ACCEPTED, {202, "Accepted" }}, | |
54 | { STATUS_NO_CONTENT, {204, "NoContent" }}, | |
55 | { STATUS_PARTIAL_CONTENT, {206, "" }}, | |
56 | { ERR_PERMANENT_REDIRECT, {301, "PermanentRedirect" }}, | |
57 | { ERR_WEBSITE_REDIRECT, {301, "WebsiteRedirect" }}, | |
58 | { STATUS_REDIRECT, {303, "" }}, | |
59 | { ERR_NOT_MODIFIED, {304, "NotModified" }}, | |
60 | { EINVAL, {400, "InvalidArgument" }}, | |
61 | { ERR_INVALID_REQUEST, {400, "InvalidRequest" }}, | |
62 | { ERR_INVALID_DIGEST, {400, "InvalidDigest" }}, | |
63 | { ERR_BAD_DIGEST, {400, "BadDigest" }}, | |
64 | { ERR_INVALID_LOCATION_CONSTRAINT, {400, "InvalidLocationConstraint" }}, | |
c07f9fc5 | 65 | { ERR_ZONEGROUP_DEFAULT_PLACEMENT_MISCONFIGURATION, {400, "ZonegroupDefaultPlacementMisconfiguration" }}, |
31f18b77 FG |
66 | { ERR_INVALID_BUCKET_NAME, {400, "InvalidBucketName" }}, |
67 | { ERR_INVALID_OBJECT_NAME, {400, "InvalidObjectName" }}, | |
68 | { ERR_UNRESOLVABLE_EMAIL, {400, "UnresolvableGrantByEmailAddress" }}, | |
69 | { ERR_INVALID_PART, {400, "InvalidPart" }}, | |
70 | { ERR_INVALID_PART_ORDER, {400, "InvalidPartOrder" }}, | |
71 | { ERR_REQUEST_TIMEOUT, {400, "RequestTimeout" }}, | |
72 | { ERR_TOO_LARGE, {400, "EntityTooLarge" }}, | |
73 | { ERR_TOO_SMALL, {400, "EntityTooSmall" }}, | |
74 | { ERR_TOO_MANY_BUCKETS, {400, "TooManyBuckets" }}, | |
75 | { ERR_MALFORMED_XML, {400, "MalformedXML" }}, | |
76 | { ERR_AMZ_CONTENT_SHA256_MISMATCH, {400, "XAmzContentSHA256Mismatch" }}, | |
224ce89b | 77 | { ERR_INVALID_TAG, {400, "InvalidTag"}}, |
c07f9fc5 | 78 | { ERR_MALFORMED_ACL_ERROR, {400, "MalformedACLError" }}, |
31f18b77 FG |
79 | { ERR_LENGTH_REQUIRED, {411, "MissingContentLength" }}, |
80 | { EACCES, {403, "AccessDenied" }}, | |
81 | { EPERM, {403, "AccessDenied" }}, | |
82 | { ERR_SIGNATURE_NO_MATCH, {403, "SignatureDoesNotMatch" }}, | |
83 | { ERR_INVALID_ACCESS_KEY, {403, "InvalidAccessKeyId" }}, | |
84 | { ERR_USER_SUSPENDED, {403, "UserSuspended" }}, | |
85 | { ERR_REQUEST_TIME_SKEWED, {403, "RequestTimeTooSkewed" }}, | |
86 | { ERR_QUOTA_EXCEEDED, {403, "QuotaExceeded" }}, | |
87 | { ENOENT, {404, "NoSuchKey" }}, | |
88 | { ERR_NO_SUCH_BUCKET, {404, "NoSuchBucket" }}, | |
89 | { ERR_NO_SUCH_WEBSITE_CONFIGURATION, {404, "NoSuchWebsiteConfiguration" }}, | |
90 | { ERR_NO_SUCH_UPLOAD, {404, "NoSuchUpload" }}, | |
91 | { ERR_NOT_FOUND, {404, "Not Found"}}, | |
92 | { ERR_NO_SUCH_LC, {404, "NoSuchLifecycleConfiguration"}}, | |
93 | { ERR_NO_SUCH_BUCKET_POLICY, {404, "NoSuchBucketPolicy"}}, | |
224ce89b WB |
94 | { ERR_NO_SUCH_USER, {404, "NoSuchUser"}}, |
95 | { ERR_NO_SUCH_SUBUSER, {404, "NoSuchSubUser"}}, | |
31f18b77 FG |
96 | { ERR_METHOD_NOT_ALLOWED, {405, "MethodNotAllowed" }}, |
97 | { ETIMEDOUT, {408, "RequestTimeout" }}, | |
98 | { EEXIST, {409, "BucketAlreadyExists" }}, | |
99 | { ERR_USER_EXIST, {409, "UserAlreadyExists" }}, | |
100 | { ERR_EMAIL_EXIST, {409, "EmailExists" }}, | |
101 | { ERR_KEY_EXIST, {409, "KeyExists"}}, | |
224ce89b | 102 | { ERR_TAG_CONFLICT, {409, "OperationAborted"}}, |
31f18b77 FG |
103 | { ERR_INVALID_SECRET_KEY, {400, "InvalidSecretKey"}}, |
104 | { ERR_INVALID_KEY_TYPE, {400, "InvalidKeyType"}}, | |
105 | { ERR_INVALID_CAP, {400, "InvalidCapability"}}, | |
106 | { ERR_INVALID_TENANT_NAME, {400, "InvalidTenantName" }}, | |
107 | { ENOTEMPTY, {409, "BucketNotEmpty" }}, | |
108 | { ERR_PRECONDITION_FAILED, {412, "PreconditionFailed" }}, | |
109 | { ERANGE, {416, "InvalidRange" }}, | |
110 | { ERR_UNPROCESSABLE_ENTITY, {422, "UnprocessableEntity" }}, | |
111 | { ERR_LOCKED, {423, "Locked" }}, | |
112 | { ERR_INTERNAL_ERROR, {500, "InternalError" }}, | |
113 | { ERR_NOT_IMPLEMENTED, {501, "NotImplemented" }}, | |
114 | { ERR_SERVICE_UNAVAILABLE, {503, "ServiceUnavailable"}}, | |
224ce89b | 115 | { ERR_ZERO_IN_URL, {400, "InvalidRequest" }}, |
31f18b77 FG |
116 | }); |
117 | ||
118 | rgw_http_errors rgw_http_swift_errors({ | |
119 | { EACCES, {403, "AccessDenied" }}, | |
120 | { EPERM, {401, "AccessDenied" }}, | |
121 | { ERR_USER_SUSPENDED, {401, "UserSuspended" }}, | |
122 | { ERR_INVALID_UTF8, {412, "Invalid UTF8" }}, | |
123 | { ERR_BAD_URL, {412, "Bad URL" }}, | |
124 | { ERR_NOT_SLO_MANIFEST, {400, "Not an SLO manifest" }}, | |
125 | { ERR_QUOTA_EXCEEDED, {413, "QuotaExceeded" }}, | |
224ce89b WB |
126 | /* FIXME(rzarzynski): we need to find a way to apply Swift's error handling |
127 | * procedures also for ERR_ZERO_IN_URL. This make a problem as the validation | |
128 | * is performed very early, even before setting the req_state::proto_flags. */ | |
129 | { ERR_ZERO_IN_URL, {412, "Invalid UTF8 or contains NULL"}}, | |
31f18b77 FG |
130 | }); |
131 | ||
7c673cae FG |
132 | int rgw_perf_start(CephContext *cct) |
133 | { | |
134 | PerfCountersBuilder plb(cct, cct->_conf->name.to_str(), l_rgw_first, l_rgw_last); | |
135 | ||
136 | plb.add_u64_counter(l_rgw_req, "req", "Requests"); | |
137 | plb.add_u64_counter(l_rgw_failed_req, "failed_req", "Aborted requests"); | |
138 | ||
139 | plb.add_u64_counter(l_rgw_get, "get", "Gets"); | |
140 | plb.add_u64_counter(l_rgw_get_b, "get_b", "Size of gets"); | |
141 | plb.add_time_avg(l_rgw_get_lat, "get_initial_lat", "Get latency"); | |
142 | plb.add_u64_counter(l_rgw_put, "put", "Puts"); | |
143 | plb.add_u64_counter(l_rgw_put_b, "put_b", "Size of puts"); | |
144 | plb.add_time_avg(l_rgw_put_lat, "put_initial_lat", "Put latency"); | |
145 | ||
146 | plb.add_u64(l_rgw_qlen, "qlen", "Queue length"); | |
147 | plb.add_u64(l_rgw_qactive, "qactive", "Active requests queue"); | |
148 | ||
149 | plb.add_u64_counter(l_rgw_cache_hit, "cache_hit", "Cache hits"); | |
150 | plb.add_u64_counter(l_rgw_cache_miss, "cache_miss", "Cache miss"); | |
151 | ||
152 | plb.add_u64_counter(l_rgw_keystone_token_cache_hit, "keystone_token_cache_hit", "Keystone token cache hits"); | |
153 | plb.add_u64_counter(l_rgw_keystone_token_cache_miss, "keystone_token_cache_miss", "Keystone token cache miss"); | |
154 | ||
155 | perfcounter = plb.create_perf_counters(); | |
156 | cct->get_perfcounters_collection()->add(perfcounter); | |
157 | return 0; | |
158 | } | |
159 | ||
160 | void rgw_perf_stop(CephContext *cct) | |
161 | { | |
162 | assert(perfcounter); | |
163 | cct->get_perfcounters_collection()->remove(perfcounter); | |
164 | delete perfcounter; | |
165 | } | |
166 | ||
167 | using namespace ceph::crypto; | |
168 | ||
169 | rgw_err:: | |
170 | rgw_err() | |
171 | { | |
172 | clear(); | |
173 | } | |
174 | ||
7c673cae FG |
175 | void rgw_err:: |
176 | clear() | |
177 | { | |
178 | http_ret = 200; | |
179 | ret = 0; | |
31f18b77 | 180 | err_code.clear(); |
7c673cae FG |
181 | } |
182 | ||
183 | bool rgw_err:: | |
184 | is_clear() const | |
185 | { | |
186 | return (http_ret == 200); | |
187 | } | |
188 | ||
189 | bool rgw_err:: | |
190 | is_err() const | |
191 | { | |
192 | return !(http_ret >= 200 && http_ret <= 399); | |
193 | } | |
194 | ||
195 | // The requestURI transferred from the frontend can be abs_path or absoluteURI | |
196 | // If it is absoluteURI, we should adjust it to abs_path for the following | |
197 | // S3 authorization and some other processes depending on the requestURI | |
198 | // The absoluteURI can start with "http://", "https://", "ws://" or "wss://" | |
199 | static string get_abs_path(const string& request_uri) { | |
200 | const static string ABS_PREFIXS[] = {"http://", "https://", "ws://", "wss://"}; | |
201 | bool isAbs = false; | |
202 | for (int i = 0; i < 4; ++i) { | |
203 | if (boost::algorithm::starts_with(request_uri, ABS_PREFIXS[i])) { | |
204 | isAbs = true; | |
205 | break; | |
206 | } | |
207 | } | |
208 | if (!isAbs) { // it is not a valid absolute uri | |
209 | return request_uri; | |
210 | } | |
211 | size_t beg_pos = request_uri.find("://") + 3; | |
212 | size_t len = request_uri.size(); | |
213 | beg_pos = request_uri.find('/', beg_pos); | |
214 | if (beg_pos == string::npos) return request_uri; | |
215 | return request_uri.substr(beg_pos, len - beg_pos); | |
216 | } | |
217 | ||
31f18b77 | 218 | req_info::req_info(CephContext *cct, const class RGWEnv *env) : env(env) { |
7c673cae FG |
219 | method = env->get("REQUEST_METHOD", ""); |
220 | script_uri = env->get("SCRIPT_URI", cct->_conf->rgw_script_uri.c_str()); | |
221 | request_uri = env->get("REQUEST_URI", cct->_conf->rgw_request_uri.c_str()); | |
222 | if (request_uri[0] != '/') { | |
223 | request_uri = get_abs_path(request_uri); | |
224 | } | |
31f18b77 FG |
225 | auto pos = request_uri.find('?'); |
226 | if (pos != string::npos) { | |
7c673cae FG |
227 | request_params = request_uri.substr(pos + 1); |
228 | request_uri = request_uri.substr(0, pos); | |
229 | } else { | |
230 | request_params = env->get("QUERY_STRING", ""); | |
231 | } | |
232 | host = env->get("HTTP_HOST", ""); | |
233 | ||
234 | // strip off any trailing :port from host (added by CrossFTP and maybe others) | |
235 | size_t colon_offset = host.find_last_of(':'); | |
236 | if (colon_offset != string::npos) { | |
237 | bool all_digits = true; | |
238 | for (unsigned i = colon_offset + 1; i < host.size(); ++i) { | |
239 | if (!isdigit(host[i])) { | |
240 | all_digits = false; | |
241 | break; | |
242 | } | |
243 | } | |
244 | if (all_digits) { | |
245 | host.resize(colon_offset); | |
246 | } | |
247 | } | |
248 | } | |
249 | ||
250 | void req_info::rebuild_from(req_info& src) | |
251 | { | |
252 | method = src.method; | |
253 | script_uri = src.script_uri; | |
254 | args = src.args; | |
255 | if (src.effective_uri.empty()) { | |
256 | request_uri = src.request_uri; | |
257 | } else { | |
258 | request_uri = src.effective_uri; | |
259 | } | |
260 | effective_uri.clear(); | |
261 | host = src.host; | |
262 | ||
263 | x_meta_map = src.x_meta_map; | |
264 | x_meta_map.erase("x-amz-date"); | |
265 | } | |
266 | ||
267 | ||
268 | req_state::req_state(CephContext* _cct, RGWEnv* e, RGWUserInfo* u) | |
269 | : cct(_cct), cio(NULL), op(OP_UNKNOWN), user(u), has_acl_header(false), | |
270 | info(_cct, e) | |
271 | { | |
272 | enable_ops_log = e->conf.enable_ops_log; | |
273 | enable_usage_log = e->conf.enable_usage_log; | |
274 | defer_to_bucket_acls = e->conf.defer_to_bucket_acls; | |
275 | content_started = false; | |
276 | format = 0; | |
277 | formatter = NULL; | |
7c673cae | 278 | expect_cont = false; |
7c673cae | 279 | |
7c673cae FG |
280 | obj_size = 0; |
281 | prot_flags = 0; | |
282 | ||
283 | system_request = false; | |
284 | ||
285 | time = ceph_clock_now(); | |
286 | perm_mask = 0; | |
287 | bucket_instance_shard_id = -1; | |
288 | content_length = 0; | |
289 | bucket_exists = false; | |
290 | has_bad_meta = false; | |
291 | length = NULL; | |
7c673cae FG |
292 | local_source = false; |
293 | ||
294 | obj_ctx = NULL; | |
295 | } | |
296 | ||
297 | req_state::~req_state() { | |
298 | delete formatter; | |
7c673cae FG |
299 | } |
300 | ||
31f18b77 FG |
301 | bool search_err(rgw_http_errors& errs, int err_no, bool is_website_redirect, int& http_ret, string& code) |
302 | { | |
303 | auto r = errs.find(err_no); | |
304 | if (r != errs.end()) { | |
305 | if (! is_website_redirect) | |
306 | http_ret = r->second.first; | |
307 | code = r->second.second; | |
308 | return true; | |
309 | } | |
310 | return false; | |
311 | } | |
312 | ||
313 | void set_req_state_err(struct rgw_err& err, /* out */ | |
314 | int err_no, /* in */ | |
315 | const int prot_flags) /* in */ | |
316 | { | |
317 | if (err_no < 0) | |
318 | err_no = -err_no; | |
319 | ||
320 | err.ret = -err_no; | |
321 | bool is_website_redirect = false; | |
322 | ||
323 | if (prot_flags & RGW_REST_SWIFT) { | |
324 | if (search_err(rgw_http_swift_errors, err_no, is_website_redirect, err.http_ret, err.err_code)) | |
325 | return; | |
326 | } | |
327 | ||
328 | //Default to searching in s3 errors | |
329 | is_website_redirect |= (prot_flags & RGW_REST_WEBSITE) | |
330 | && err_no == ERR_WEBSITE_REDIRECT && err.is_clear(); | |
331 | if (search_err(rgw_http_s3_errors, err_no, is_website_redirect, err.http_ret, err.err_code)) | |
332 | return; | |
333 | dout(0) << "WARNING: set_req_state_err err_no=" << err_no | |
334 | << " resorting to 500" << dendl; | |
335 | ||
336 | err.http_ret = 500; | |
337 | err.err_code = "UnknownError"; | |
338 | } | |
339 | ||
340 | void set_req_state_err(struct req_state* s, int err_no, const string& err_msg) | |
341 | { | |
342 | if (s) { | |
343 | set_req_state_err(s, err_no); | |
344 | s->err.message = err_msg; | |
345 | } | |
346 | } | |
347 | ||
348 | void set_req_state_err(struct req_state* s, int err_no) | |
349 | { | |
350 | if (s) { | |
351 | set_req_state_err(s->err, err_no, s->prot_flags); | |
352 | } | |
353 | } | |
354 | ||
355 | void dump(struct req_state* s) | |
356 | { | |
357 | if (s->format != RGW_FORMAT_HTML) | |
358 | s->formatter->open_object_section("Error"); | |
359 | if (!s->err.err_code.empty()) | |
360 | s->formatter->dump_string("Code", s->err.err_code); | |
361 | if (!s->err.message.empty()) | |
362 | s->formatter->dump_string("Message", s->err.message); | |
363 | if (!s->bucket_name.empty()) // TODO: connect to expose_bucket | |
364 | s->formatter->dump_string("BucketName", s->bucket_name); | |
365 | if (!s->trans_id.empty()) // TODO: connect to expose_bucket or another toggle | |
366 | s->formatter->dump_string("RequestId", s->trans_id); | |
367 | s->formatter->dump_string("HostId", s->host_id); | |
368 | if (s->format != RGW_FORMAT_HTML) | |
369 | s->formatter->close_section(); | |
370 | } | |
371 | ||
7c673cae FG |
372 | struct str_len { |
373 | const char *str; | |
374 | int len; | |
375 | }; | |
376 | ||
377 | #define STR_LEN_ENTRY(s) { s, sizeof(s) - 1 } | |
378 | ||
379 | struct str_len meta_prefixes[] = { STR_LEN_ENTRY("HTTP_X_AMZ"), | |
380 | STR_LEN_ENTRY("HTTP_X_GOOG"), | |
381 | STR_LEN_ENTRY("HTTP_X_DHO"), | |
382 | STR_LEN_ENTRY("HTTP_X_RGW"), | |
383 | STR_LEN_ENTRY("HTTP_X_OBJECT"), | |
384 | STR_LEN_ENTRY("HTTP_X_CONTAINER"), | |
385 | STR_LEN_ENTRY("HTTP_X_ACCOUNT"), | |
386 | {NULL, 0} }; | |
387 | ||
388 | ||
389 | void req_info::init_meta_info(bool *found_bad_meta) | |
390 | { | |
391 | x_meta_map.clear(); | |
392 | ||
31f18b77 | 393 | for (const auto& kv: env->get_map()) { |
7c673cae | 394 | const char *prefix; |
31f18b77 FG |
395 | const string& header_name = kv.first; |
396 | const string& val = kv.second; | |
7c673cae FG |
397 | for (int prefix_num = 0; (prefix = meta_prefixes[prefix_num].str) != NULL; prefix_num++) { |
398 | int len = meta_prefixes[prefix_num].len; | |
399 | const char *p = header_name.c_str(); | |
400 | if (strncmp(p, prefix, len) == 0) { | |
401 | dout(10) << "meta>> " << p << dendl; | |
402 | const char *name = p+len; /* skip the prefix */ | |
403 | int name_len = header_name.size() - len; | |
404 | ||
405 | if (found_bad_meta && strncmp(name, "_META_", name_len) == 0) | |
406 | *found_bad_meta = true; | |
407 | ||
408 | char name_low[meta_prefixes[0].len + name_len + 1]; | |
409 | snprintf(name_low, meta_prefixes[0].len - 5 + name_len + 1, "%s%s", meta_prefixes[0].str + 5 /* skip HTTP_ */, name); // normalize meta prefix | |
410 | int j; | |
411 | for (j = 0; name_low[j]; j++) { | |
412 | if (name_low[j] != '_') | |
413 | name_low[j] = tolower(name_low[j]); | |
414 | else | |
415 | name_low[j] = '-'; | |
416 | } | |
417 | name_low[j] = 0; | |
418 | ||
31f18b77 FG |
419 | auto it = x_meta_map.find(name_low); |
420 | if (it != x_meta_map.end()) { | |
421 | string old = it->second; | |
422 | boost::algorithm::trim_right(old); | |
7c673cae FG |
423 | old.append(","); |
424 | old.append(val); | |
425 | x_meta_map[name_low] = old; | |
426 | } else { | |
427 | x_meta_map[name_low] = val; | |
428 | } | |
429 | } | |
430 | } | |
431 | } | |
31f18b77 FG |
432 | for (const auto& kv: x_meta_map) { |
433 | dout(10) << "x>> " << kv.first << ":" << rgw::crypt_sanitize::x_meta_map{kv.first, kv.second} << dendl; | |
7c673cae FG |
434 | } |
435 | } | |
436 | ||
437 | std::ostream& operator<<(std::ostream& oss, const rgw_err &err) | |
438 | { | |
31f18b77 | 439 | oss << "rgw_err(http_ret=" << err.http_ret << ", err_code='" << err.err_code << "') "; |
7c673cae FG |
440 | return oss; |
441 | } | |
442 | ||
443 | string rgw_string_unquote(const string& s) | |
444 | { | |
445 | if (s[0] != '"' || s.size() < 2) | |
446 | return s; | |
447 | ||
448 | int len; | |
449 | for (len = s.size(); len > 2; --len) { | |
450 | if (s[len - 1] != ' ') | |
451 | break; | |
452 | } | |
453 | ||
454 | if (s[len-1] != '"') | |
455 | return s; | |
456 | ||
457 | return s.substr(1, len - 2); | |
458 | } | |
459 | ||
7c673cae FG |
460 | static bool check_str_end(const char *s) |
461 | { | |
462 | if (!s) | |
463 | return false; | |
464 | ||
465 | while (*s) { | |
466 | if (!isspace(*s)) | |
467 | return false; | |
468 | s++; | |
469 | } | |
470 | return true; | |
471 | } | |
472 | ||
473 | static bool check_gmt_end(const char *s) | |
474 | { | |
475 | if (!s || !*s) | |
476 | return false; | |
477 | ||
478 | while (isspace(*s)) { | |
479 | ++s; | |
480 | } | |
481 | ||
482 | /* check for correct timezone */ | |
483 | if ((strncmp(s, "GMT", 3) != 0) && | |
484 | (strncmp(s, "UTC", 3) != 0)) { | |
485 | return false; | |
486 | } | |
487 | ||
488 | return true; | |
489 | } | |
490 | ||
491 | static bool parse_rfc850(const char *s, struct tm *t) | |
492 | { | |
493 | memset(t, 0, sizeof(*t)); | |
494 | return check_gmt_end(strptime(s, "%A, %d-%b-%y %H:%M:%S ", t)); | |
495 | } | |
496 | ||
497 | static bool parse_asctime(const char *s, struct tm *t) | |
498 | { | |
499 | memset(t, 0, sizeof(*t)); | |
500 | return check_str_end(strptime(s, "%a %b %d %H:%M:%S %Y", t)); | |
501 | } | |
502 | ||
503 | static bool parse_rfc1123(const char *s, struct tm *t) | |
504 | { | |
505 | memset(t, 0, sizeof(*t)); | |
506 | return check_gmt_end(strptime(s, "%a, %d %b %Y %H:%M:%S ", t)); | |
507 | } | |
508 | ||
509 | static bool parse_rfc1123_alt(const char *s, struct tm *t) | |
510 | { | |
511 | memset(t, 0, sizeof(*t)); | |
512 | return check_str_end(strptime(s, "%a, %d %b %Y %H:%M:%S %z", t)); | |
513 | } | |
514 | ||
515 | bool parse_rfc2616(const char *s, struct tm *t) | |
516 | { | |
517 | return parse_rfc850(s, t) || parse_asctime(s, t) || parse_rfc1123(s, t) || parse_rfc1123_alt(s,t); | |
518 | } | |
519 | ||
520 | bool parse_iso8601(const char *s, struct tm *t, uint32_t *pns, bool extended_format) | |
521 | { | |
522 | memset(t, 0, sizeof(*t)); | |
523 | const char *p; | |
524 | ||
525 | if (!s) | |
526 | s = ""; | |
527 | ||
528 | if (extended_format) { | |
529 | p = strptime(s, "%Y-%m-%dT%T", t); | |
530 | if (!p) { | |
531 | p = strptime(s, "%Y-%m-%d %T", t); | |
532 | } | |
533 | } else { | |
534 | p = strptime(s, "%Y%m%dT%H%M%S", t); | |
535 | } | |
536 | if (!p) { | |
537 | dout(0) << "parse_iso8601 failed" << dendl; | |
538 | return false; | |
539 | } | |
31f18b77 | 540 | const boost::string_view str = rgw_trim_whitespace(boost::string_view(p)); |
7c673cae FG |
541 | int len = str.size(); |
542 | ||
31f18b77 | 543 | if (len == 0 || (len == 1 && str[0] == 'Z')) |
7c673cae FG |
544 | return true; |
545 | ||
546 | if (str[0] != '.' || | |
547 | str[len - 1] != 'Z') | |
548 | return false; | |
549 | ||
550 | uint32_t ms; | |
31f18b77 FG |
551 | boost::string_view nsstr = str.substr(1, len - 2); |
552 | int r = stringtoul(nsstr.to_string(), &ms); | |
7c673cae FG |
553 | if (r < 0) |
554 | return false; | |
555 | ||
556 | if (!pns) { | |
557 | return true; | |
558 | } | |
559 | ||
560 | if (nsstr.size() > 9) { | |
561 | nsstr = nsstr.substr(0, 9); | |
562 | } | |
563 | ||
564 | uint64_t mul_table[] = { 0, | |
565 | 100000000LL, | |
566 | 10000000LL, | |
567 | 1000000LL, | |
568 | 100000LL, | |
569 | 10000LL, | |
570 | 1000LL, | |
571 | 100LL, | |
572 | 10LL, | |
573 | 1 }; | |
574 | ||
575 | ||
576 | *pns = ms * mul_table[nsstr.size()]; | |
577 | ||
578 | return true; | |
579 | } | |
580 | ||
581 | int parse_key_value(string& in_str, const char *delim, string& key, string& val) | |
582 | { | |
583 | if (delim == NULL) | |
584 | return -EINVAL; | |
585 | ||
31f18b77 FG |
586 | auto pos = in_str.find(delim); |
587 | if (pos == string::npos) | |
7c673cae FG |
588 | return -EINVAL; |
589 | ||
31f18b77 FG |
590 | key = rgw_trim_whitespace(in_str.substr(0, pos)); |
591 | val = rgw_trim_whitespace(in_str.substr(pos + 1)); | |
7c673cae FG |
592 | |
593 | return 0; | |
594 | } | |
595 | ||
596 | int parse_key_value(string& in_str, string& key, string& val) | |
597 | { | |
598 | return parse_key_value(in_str, "=", key,val); | |
599 | } | |
600 | ||
31f18b77 FG |
601 | boost::optional<std::pair<boost::string_view, boost::string_view>> |
602 | parse_key_value(const boost::string_view& in_str, | |
603 | const boost::string_view& delim) | |
604 | { | |
605 | const size_t pos = in_str.find(delim); | |
606 | if (pos == boost::string_view::npos) { | |
607 | return boost::none; | |
608 | } | |
609 | ||
610 | const auto key = rgw_trim_whitespace(in_str.substr(0, pos)); | |
611 | const auto val = rgw_trim_whitespace(in_str.substr(pos + 1)); | |
612 | ||
613 | return std::make_pair(key, val); | |
614 | } | |
615 | ||
616 | boost::optional<std::pair<boost::string_view, boost::string_view>> | |
617 | parse_key_value(const boost::string_view& in_str) | |
618 | { | |
619 | return parse_key_value(in_str, "="); | |
620 | } | |
621 | ||
7c673cae FG |
622 | int parse_time(const char *time_str, real_time *time) |
623 | { | |
624 | struct tm tm; | |
625 | uint32_t ns = 0; | |
626 | ||
627 | if (!parse_rfc2616(time_str, &tm) && !parse_iso8601(time_str, &tm, &ns)) { | |
628 | return -EINVAL; | |
629 | } | |
630 | ||
631 | time_t sec = internal_timegm(&tm); | |
632 | *time = utime_t(sec, ns).to_real_time(); | |
633 | ||
634 | return 0; | |
635 | } | |
636 | ||
637 | #define TIME_BUF_SIZE 128 | |
638 | ||
639 | void rgw_to_iso8601(const real_time& t, char *dest, int buf_size) | |
640 | { | |
641 | utime_t ut(t); | |
642 | ||
643 | char buf[TIME_BUF_SIZE]; | |
644 | struct tm result; | |
645 | time_t epoch = ut.sec(); | |
646 | struct tm *tmp = gmtime_r(&epoch, &result); | |
647 | if (tmp == NULL) | |
648 | return; | |
649 | ||
650 | if (strftime(buf, sizeof(buf), "%Y-%m-%dT%T", tmp) == 0) | |
651 | return; | |
652 | ||
653 | snprintf(dest, buf_size, "%s.%03dZ", buf, (int)(ut.usec() / 1000)); | |
654 | } | |
655 | ||
656 | void rgw_to_iso8601(const real_time& t, string *dest) | |
657 | { | |
658 | char buf[TIME_BUF_SIZE]; | |
659 | rgw_to_iso8601(t, buf, sizeof(buf)); | |
660 | *dest = buf; | |
661 | } | |
662 | ||
c07f9fc5 FG |
663 | |
664 | string rgw_to_asctime(const utime_t& t) | |
665 | { | |
666 | stringstream s; | |
667 | t.asctime(s); | |
668 | return s.str(); | |
669 | } | |
670 | ||
7c673cae FG |
671 | /* |
672 | * calculate the sha1 value of a given msg and key | |
673 | */ | |
674 | void calc_hmac_sha1(const char *key, int key_len, | |
675 | const char *msg, int msg_len, char *dest) | |
676 | /* destination should be CEPH_CRYPTO_HMACSHA1_DIGESTSIZE bytes long */ | |
677 | { | |
678 | HMACSHA1 hmac((const unsigned char *)key, key_len); | |
679 | hmac.Update((const unsigned char *)msg, msg_len); | |
680 | hmac.Final((unsigned char *)dest); | |
681 | } | |
682 | ||
683 | /* | |
684 | * calculate the sha256 value of a given msg and key | |
685 | */ | |
686 | void calc_hmac_sha256(const char *key, int key_len, | |
687 | const char *msg, int msg_len, char *dest) | |
688 | { | |
689 | char hash_sha256[CEPH_CRYPTO_HMACSHA256_DIGESTSIZE]; | |
690 | ||
691 | HMACSHA256 hmac((const unsigned char *)key, key_len); | |
692 | hmac.Update((const unsigned char *)msg, msg_len); | |
693 | hmac.Final((unsigned char *)hash_sha256); | |
694 | ||
695 | memcpy(dest, hash_sha256, CEPH_CRYPTO_HMACSHA256_DIGESTSIZE); | |
696 | } | |
697 | ||
31f18b77 FG |
698 | using ceph::crypto::SHA256; |
699 | ||
7c673cae FG |
700 | /* |
701 | * calculate the sha256 hash value of a given msg | |
702 | */ | |
31f18b77 | 703 | sha256_digest_t calc_hash_sha256(const boost::string_view& msg) |
7c673cae | 704 | { |
31f18b77 | 705 | std::array<unsigned char, CEPH_CRYPTO_HMACSHA256_DIGESTSIZE> hash; |
7c673cae | 706 | |
31f18b77 FG |
707 | SHA256 hasher; |
708 | hasher.Update(reinterpret_cast<const unsigned char*>(msg.data()), msg.size()); | |
709 | hasher.Final(hash.data()); | |
7c673cae | 710 | |
31f18b77 | 711 | return hash; |
7c673cae FG |
712 | } |
713 | ||
7c673cae FG |
714 | SHA256* calc_hash_sha256_open_stream() |
715 | { | |
716 | return new SHA256; | |
717 | } | |
718 | ||
719 | void calc_hash_sha256_update_stream(SHA256 *hash, const char *msg, int len) | |
720 | { | |
721 | hash->Update((const unsigned char *)msg, len); | |
722 | } | |
723 | ||
724 | string calc_hash_sha256_close_stream(SHA256 **phash) | |
725 | { | |
726 | SHA256 *hash = *phash; | |
727 | if (!hash) { | |
728 | hash = calc_hash_sha256_open_stream(); | |
729 | } | |
730 | char hash_sha256[CEPH_CRYPTO_HMACSHA256_DIGESTSIZE]; | |
731 | ||
732 | hash->Final((unsigned char *)hash_sha256); | |
733 | ||
734 | char hex_str[(CEPH_CRYPTO_SHA256_DIGESTSIZE * 2) + 1]; | |
735 | buf_to_hex((unsigned char *)hash_sha256, CEPH_CRYPTO_SHA256_DIGESTSIZE, hex_str); | |
736 | ||
737 | delete hash; | |
738 | *phash = NULL; | |
739 | ||
740 | return std::string(hex_str); | |
741 | } | |
742 | ||
31f18b77 FG |
743 | std::string calc_hash_sha256_restart_stream(SHA256 **phash) |
744 | { | |
745 | const auto hash = calc_hash_sha256_close_stream(phash); | |
746 | *phash = calc_hash_sha256_open_stream(); | |
747 | ||
748 | return hash; | |
749 | } | |
750 | ||
7c673cae FG |
751 | int gen_rand_base64(CephContext *cct, char *dest, int size) /* size should be the required string size + 1 */ |
752 | { | |
753 | char buf[size]; | |
754 | char tmp_dest[size + 4]; /* so that there's space for the extra '=' characters, and some */ | |
755 | int ret; | |
756 | ||
757 | ret = get_random_bytes(buf, sizeof(buf)); | |
758 | if (ret < 0) { | |
759 | lderr(cct) << "cannot get random bytes: " << cpp_strerror(-ret) << dendl; | |
760 | return ret; | |
761 | } | |
762 | ||
763 | ret = ceph_armor(tmp_dest, &tmp_dest[sizeof(tmp_dest)], | |
764 | (const char *)buf, ((const char *)buf) + ((size - 1) * 3 + 4 - 1) / 4); | |
765 | if (ret < 0) { | |
766 | lderr(cct) << "ceph_armor failed" << dendl; | |
767 | return ret; | |
768 | } | |
769 | tmp_dest[ret] = '\0'; | |
770 | memcpy(dest, tmp_dest, size); | |
771 | dest[size-1] = '\0'; | |
772 | ||
773 | return 0; | |
774 | } | |
775 | ||
776 | static const char alphanum_upper_table[]="0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ"; | |
777 | ||
778 | int gen_rand_alphanumeric_upper(CephContext *cct, char *dest, int size) /* size should be the required string size + 1 */ | |
779 | { | |
780 | int ret = get_random_bytes(dest, size); | |
781 | if (ret < 0) { | |
782 | lderr(cct) << "cannot get random bytes: " << cpp_strerror(-ret) << dendl; | |
783 | return ret; | |
784 | } | |
785 | ||
786 | int i; | |
787 | for (i=0; i<size - 1; i++) { | |
788 | int pos = (unsigned)dest[i]; | |
789 | dest[i] = alphanum_upper_table[pos % (sizeof(alphanum_upper_table) - 1)]; | |
790 | } | |
791 | dest[i] = '\0'; | |
792 | ||
793 | return 0; | |
794 | } | |
795 | ||
796 | static const char alphanum_lower_table[]="0123456789abcdefghijklmnopqrstuvwxyz"; | |
797 | ||
798 | int gen_rand_alphanumeric_lower(CephContext *cct, char *dest, int size) /* size should be the required string size + 1 */ | |
799 | { | |
800 | int ret = get_random_bytes(dest, size); | |
801 | if (ret < 0) { | |
802 | lderr(cct) << "cannot get random bytes: " << cpp_strerror(-ret) << dendl; | |
803 | return ret; | |
804 | } | |
805 | ||
806 | int i; | |
807 | for (i=0; i<size - 1; i++) { | |
808 | int pos = (unsigned)dest[i]; | |
809 | dest[i] = alphanum_lower_table[pos % (sizeof(alphanum_lower_table) - 1)]; | |
810 | } | |
811 | dest[i] = '\0'; | |
812 | ||
813 | return 0; | |
814 | } | |
815 | ||
816 | int gen_rand_alphanumeric_lower(CephContext *cct, string *str, int length) | |
817 | { | |
818 | char buf[length + 1]; | |
819 | int ret = gen_rand_alphanumeric_lower(cct, buf, sizeof(buf)); | |
820 | if (ret < 0) { | |
821 | return ret; | |
822 | } | |
823 | *str = buf; | |
824 | return 0; | |
825 | } | |
826 | ||
827 | // this is basically a modified base64 charset, url friendly | |
828 | static const char alphanum_table[]="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_"; | |
829 | ||
830 | int gen_rand_alphanumeric(CephContext *cct, char *dest, int size) /* size should be the required string size + 1 */ | |
831 | { | |
832 | int ret = get_random_bytes(dest, size); | |
833 | if (ret < 0) { | |
834 | lderr(cct) << "cannot get random bytes: " << cpp_strerror(-ret) << dendl; | |
835 | return ret; | |
836 | } | |
837 | ||
838 | int i; | |
839 | for (i=0; i<size - 1; i++) { | |
840 | int pos = (unsigned)dest[i]; | |
841 | dest[i] = alphanum_table[pos & 63]; | |
842 | } | |
843 | dest[i] = '\0'; | |
844 | ||
845 | return 0; | |
846 | } | |
847 | ||
848 | static const char alphanum_no_underscore_table[]="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-."; | |
849 | ||
850 | int gen_rand_alphanumeric_no_underscore(CephContext *cct, char *dest, int size) /* size should be the required string size + 1 */ | |
851 | { | |
852 | int ret = get_random_bytes(dest, size); | |
853 | if (ret < 0) { | |
854 | lderr(cct) << "cannot get random bytes: " << cpp_strerror(-ret) << dendl; | |
855 | return ret; | |
856 | } | |
857 | ||
858 | int i; | |
859 | for (i=0; i<size - 1; i++) { | |
860 | int pos = (unsigned)dest[i]; | |
861 | dest[i] = alphanum_no_underscore_table[pos & 63]; | |
862 | } | |
863 | dest[i] = '\0'; | |
864 | ||
865 | return 0; | |
866 | } | |
867 | ||
868 | static const char alphanum_plain_table[]="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; | |
869 | ||
870 | int gen_rand_alphanumeric_plain(CephContext *cct, char *dest, int size) /* size should be the required string size + 1 */ | |
871 | { | |
872 | int ret = get_random_bytes(dest, size); | |
873 | if (ret < 0) { | |
874 | lderr(cct) << "cannot get random bytes: " << cpp_strerror(-ret) << dendl; | |
875 | return ret; | |
876 | } | |
877 | ||
878 | int i; | |
879 | for (i=0; i<size - 1; i++) { | |
880 | int pos = (unsigned)dest[i]; | |
881 | dest[i] = alphanum_plain_table[pos % (sizeof(alphanum_plain_table) - 1)]; | |
882 | } | |
883 | dest[i] = '\0'; | |
884 | ||
885 | return 0; | |
886 | } | |
887 | ||
888 | int NameVal::parse() | |
889 | { | |
31f18b77 | 890 | auto delim_pos = str.find('='); |
7c673cae FG |
891 | int ret = 0; |
892 | ||
31f18b77 | 893 | if (delim_pos == string::npos) { |
7c673cae FG |
894 | name = str; |
895 | val = ""; | |
896 | ret = 1; | |
897 | } else { | |
898 | name = str.substr(0, delim_pos); | |
899 | val = str.substr(delim_pos + 1); | |
900 | } | |
901 | ||
902 | return ret; | |
903 | } | |
904 | ||
905 | int RGWHTTPArgs::parse() | |
906 | { | |
907 | int pos = 0; | |
908 | bool end = false; | |
909 | ||
910 | if (str.empty()) | |
911 | return 0; | |
912 | ||
913 | if (str[pos] == '?') | |
914 | pos++; | |
915 | ||
916 | while (!end) { | |
917 | int fpos = str.find('&', pos); | |
918 | if (fpos < pos) { | |
919 | end = true; | |
920 | fpos = str.size(); | |
921 | } | |
31f18b77 FG |
922 | std::string nameval = url_decode(str.substr(pos, fpos - pos), true); |
923 | NameVal nv(std::move(nameval)); | |
7c673cae FG |
924 | int ret = nv.parse(); |
925 | if (ret >= 0) { | |
926 | string& name = nv.get_name(); | |
927 | string& val = nv.get_val(); | |
928 | ||
929 | append(name, val); | |
930 | } | |
931 | ||
932 | pos = fpos + 1; | |
933 | } | |
934 | ||
935 | return 0; | |
936 | } | |
937 | ||
938 | void RGWHTTPArgs::append(const string& name, const string& val) | |
939 | { | |
940 | if (name.compare(0, sizeof(RGW_SYS_PARAM_PREFIX) - 1, RGW_SYS_PARAM_PREFIX) == 0) { | |
941 | sys_val_map[name] = val; | |
942 | } else { | |
943 | val_map[name] = val; | |
944 | } | |
945 | ||
946 | if ((name.compare("acl") == 0) || | |
947 | (name.compare("cors") == 0) || | |
948 | (name.compare("location") == 0) || | |
949 | (name.compare("logging") == 0) || | |
950 | (name.compare("usage") == 0) || | |
951 | (name.compare("lifecycle") == 0) || | |
952 | (name.compare("delete") == 0) || | |
953 | (name.compare("uploads") == 0) || | |
954 | (name.compare("partNumber") == 0) || | |
955 | (name.compare("uploadId") == 0) || | |
956 | (name.compare("versionId") == 0) || | |
957 | (name.compare("start-date") == 0) || | |
958 | (name.compare("end-date") == 0) || | |
959 | (name.compare("versions") == 0) || | |
960 | (name.compare("versioning") == 0) || | |
961 | (name.compare("website") == 0) || | |
962 | (name.compare("requestPayment") == 0) || | |
224ce89b WB |
963 | (name.compare("torrent") == 0) || |
964 | (name.compare("tagging") == 0)) { | |
7c673cae FG |
965 | sub_resources[name] = val; |
966 | } else if (name[0] == 'r') { // root of all evil | |
967 | if ((name.compare("response-content-type") == 0) || | |
968 | (name.compare("response-content-language") == 0) || | |
969 | (name.compare("response-expires") == 0) || | |
970 | (name.compare("response-cache-control") == 0) || | |
971 | (name.compare("response-content-disposition") == 0) || | |
972 | (name.compare("response-content-encoding") == 0)) { | |
973 | sub_resources[name] = val; | |
974 | has_resp_modifier = true; | |
975 | } | |
976 | } else if ((name.compare("subuser") == 0) || | |
977 | (name.compare("key") == 0) || | |
978 | (name.compare("caps") == 0) || | |
979 | (name.compare("index") == 0) || | |
980 | (name.compare("policy") == 0) || | |
981 | (name.compare("quota") == 0) || | |
982 | (name.compare("object") == 0)) { | |
983 | ||
984 | if (!admin_subresource_added) { | |
985 | sub_resources[name] = ""; | |
986 | admin_subresource_added = true; | |
987 | } | |
988 | } | |
989 | } | |
990 | ||
991 | const string& RGWHTTPArgs::get(const string& name, bool *exists) const | |
992 | { | |
993 | auto iter = val_map.find(name); | |
994 | bool e = (iter != std::end(val_map)); | |
995 | if (exists) | |
996 | *exists = e; | |
997 | if (e) | |
998 | return iter->second; | |
999 | return empty_str; | |
1000 | } | |
1001 | ||
1002 | int RGWHTTPArgs::get_bool(const string& name, bool *val, bool *exists) | |
1003 | { | |
1004 | map<string, string>::iterator iter; | |
1005 | iter = val_map.find(name); | |
1006 | bool e = (iter != val_map.end()); | |
1007 | if (exists) | |
1008 | *exists = e; | |
1009 | ||
1010 | if (e) { | |
1011 | const char *s = iter->second.c_str(); | |
1012 | ||
1013 | if (strcasecmp(s, "false") == 0) { | |
1014 | *val = false; | |
1015 | } else if (strcasecmp(s, "true") == 0) { | |
1016 | *val = true; | |
1017 | } else { | |
1018 | return -EINVAL; | |
1019 | } | |
1020 | } | |
1021 | ||
1022 | return 0; | |
1023 | } | |
1024 | ||
1025 | int RGWHTTPArgs::get_bool(const char *name, bool *val, bool *exists) | |
1026 | { | |
1027 | string s(name); | |
1028 | return get_bool(s, val, exists); | |
1029 | } | |
1030 | ||
1031 | void RGWHTTPArgs::get_bool(const char *name, bool *val, bool def_val) | |
1032 | { | |
1033 | bool exists = false; | |
1034 | if ((get_bool(name, val, &exists) < 0) || | |
1035 | !exists) { | |
1036 | *val = def_val; | |
1037 | } | |
1038 | } | |
1039 | ||
1040 | string RGWHTTPArgs::sys_get(const string& name, bool * const exists) const | |
1041 | { | |
1042 | const auto iter = sys_val_map.find(name); | |
1043 | const bool e = (iter != sys_val_map.end()); | |
1044 | ||
1045 | if (exists) { | |
1046 | *exists = e; | |
1047 | } | |
1048 | ||
1049 | return e ? iter->second : string(); | |
1050 | } | |
1051 | ||
1052 | bool verify_user_permission(struct req_state * const s, | |
1053 | RGWAccessControlPolicy * const user_acl, | |
1054 | const int perm) | |
1055 | { | |
1056 | /* S3 doesn't support account ACLs. */ | |
1057 | if (!user_acl) | |
1058 | return true; | |
1059 | ||
1060 | if ((perm & (int)s->perm_mask) != perm) | |
1061 | return false; | |
1062 | ||
1063 | return user_acl->verify_permission(*s->auth.identity, perm, perm); | |
1064 | } | |
1065 | ||
1066 | bool verify_user_permission(struct req_state * const s, | |
1067 | const int perm) | |
1068 | { | |
1069 | return verify_user_permission(s, s->user_acl.get(), perm); | |
1070 | } | |
1071 | ||
1072 | bool verify_requester_payer_permission(struct req_state *s) | |
1073 | { | |
1074 | if (!s->bucket_info.requester_pays) | |
1075 | return true; | |
1076 | ||
1077 | if (s->auth.identity->is_owner_of(s->bucket_info.owner)) | |
1078 | return true; | |
1079 | ||
1080 | if (s->auth.identity->is_anonymous()) { | |
1081 | return false; | |
1082 | } | |
1083 | ||
1084 | const char *request_payer = s->info.env->get("HTTP_X_AMZ_REQUEST_PAYER"); | |
1085 | if (!request_payer) { | |
1086 | bool exists; | |
1087 | request_payer = s->info.args.get("x-amz-request-payer", &exists).c_str(); | |
1088 | if (!exists) { | |
1089 | return false; | |
1090 | } | |
1091 | } | |
1092 | ||
1093 | if (strcasecmp(request_payer, "requester") == 0) { | |
1094 | return true; | |
1095 | } | |
1096 | ||
1097 | return false; | |
1098 | } | |
1099 | ||
1100 | bool verify_bucket_permission(struct req_state * const s, | |
31f18b77 | 1101 | const rgw_bucket& bucket, |
7c673cae FG |
1102 | RGWAccessControlPolicy * const user_acl, |
1103 | RGWAccessControlPolicy * const bucket_acl, | |
31f18b77 FG |
1104 | const optional<Policy>& bucket_policy, |
1105 | const uint64_t op) | |
7c673cae | 1106 | { |
31f18b77 | 1107 | if (!verify_requester_payer_permission(s)) |
7c673cae FG |
1108 | return false; |
1109 | ||
31f18b77 FG |
1110 | if (bucket_policy) { |
1111 | auto r = bucket_policy->eval(s->env, *s->auth.identity, op, ARN(bucket)); | |
1112 | if (r == Effect::Allow) | |
1113 | // It looks like S3 ACLs only GRANT permissions rather than | |
1114 | // denying them, so this should be safe. | |
1115 | return true; | |
1116 | else if (r == Effect::Deny) | |
1117 | return false; | |
1118 | } | |
1119 | ||
1120 | const auto perm = op_to_perm(op); | |
1121 | ||
1122 | return verify_bucket_permission_no_policy(s, user_acl, bucket_acl, perm); | |
1123 | } | |
1124 | ||
1125 | bool verify_bucket_permission_no_policy(struct req_state * const s, | |
1126 | RGWAccessControlPolicy * const user_acl, | |
1127 | RGWAccessControlPolicy * const bucket_acl, | |
1128 | const int perm) | |
1129 | { | |
1130 | if (!bucket_acl) | |
7c673cae FG |
1131 | return false; |
1132 | ||
31f18b77 | 1133 | if ((perm & (int)s->perm_mask) != perm) |
7c673cae FG |
1134 | return false; |
1135 | ||
1136 | if (bucket_acl->verify_permission(*s->auth.identity, perm, perm, | |
1137 | s->info.env->get("HTTP_REFERER"))) | |
1138 | return true; | |
1139 | ||
1140 | if (!user_acl) | |
1141 | return false; | |
1142 | ||
1143 | return user_acl->verify_permission(*s->auth.identity, perm, perm); | |
1144 | } | |
1145 | ||
31f18b77 FG |
1146 | bool verify_bucket_permission_no_policy(struct req_state * const s, const int perm) |
1147 | { | |
1148 | if (!verify_requester_payer_permission(s)) | |
1149 | return false; | |
1150 | ||
1151 | return verify_bucket_permission_no_policy(s, | |
c07f9fc5 FG |
1152 | s->user_acl.get(), |
1153 | s->bucket_acl.get(), | |
1154 | perm); | |
31f18b77 FG |
1155 | } |
1156 | ||
1157 | bool verify_bucket_permission(struct req_state * const s, const uint64_t op) | |
7c673cae FG |
1158 | { |
1159 | return verify_bucket_permission(s, | |
c07f9fc5 | 1160 | s->bucket, |
7c673cae | 1161 | s->user_acl.get(), |
c07f9fc5 FG |
1162 | s->bucket_acl.get(), |
1163 | s->iam_policy, | |
31f18b77 FG |
1164 | op); |
1165 | } | |
1166 | ||
1167 | static inline bool check_deferred_bucket_perms(struct req_state * const s, | |
1168 | const rgw_bucket& bucket, | |
1169 | RGWAccessControlPolicy * const user_acl, | |
1170 | RGWAccessControlPolicy * const bucket_acl, | |
1171 | const optional<Policy>& bucket_policy, | |
1172 | const uint8_t deferred_check, | |
1173 | const uint64_t op) | |
1174 | { | |
1175 | return (s->defer_to_bucket_acls == deferred_check \ | |
1176 | && verify_bucket_permission(s, bucket, user_acl, bucket_acl, bucket_policy, op)); | |
7c673cae FG |
1177 | } |
1178 | ||
31f18b77 FG |
1179 | static inline bool check_deferred_bucket_only_acl(struct req_state * const s, |
1180 | RGWAccessControlPolicy * const user_acl, | |
1181 | RGWAccessControlPolicy * const bucket_acl, | |
1182 | const uint8_t deferred_check, | |
1183 | const int perm) | |
7c673cae FG |
1184 | { |
1185 | return (s->defer_to_bucket_acls == deferred_check \ | |
31f18b77 | 1186 | && verify_bucket_permission_no_policy(s, user_acl, bucket_acl, perm)); |
7c673cae FG |
1187 | } |
1188 | ||
1189 | bool verify_object_permission(struct req_state * const s, | |
31f18b77 | 1190 | const rgw_obj& obj, |
7c673cae FG |
1191 | RGWAccessControlPolicy * const user_acl, |
1192 | RGWAccessControlPolicy * const bucket_acl, | |
1193 | RGWAccessControlPolicy * const object_acl, | |
31f18b77 FG |
1194 | const optional<Policy>& bucket_policy, |
1195 | const uint64_t op) | |
7c673cae FG |
1196 | { |
1197 | if (!verify_requester_payer_permission(s)) | |
1198 | return false; | |
1199 | ||
31f18b77 FG |
1200 | if (bucket_policy) { |
1201 | auto r = bucket_policy->eval(s->env, *s->auth.identity, op, ARN(obj)); | |
1202 | if (r == Effect::Allow) | |
1203 | // It looks like S3 ACLs only GRANT permissions rather than | |
1204 | // denying them, so this should be safe. | |
1205 | return true; | |
1206 | else if (r == Effect::Deny) | |
1207 | return false; | |
1208 | } | |
1209 | ||
1210 | const auto perm = op_to_perm(op); | |
1211 | ||
1212 | if (check_deferred_bucket_perms(s, obj.bucket, user_acl, bucket_acl, bucket_policy, | |
1213 | RGW_DEFER_TO_BUCKET_ACLS_RECURSE, op) || | |
1214 | check_deferred_bucket_perms(s, obj.bucket, user_acl, bucket_acl, bucket_policy, | |
1215 | RGW_DEFER_TO_BUCKET_ACLS_FULL_CONTROL, rgw::IAM::s3All)) { | |
1216 | return true; | |
1217 | } | |
1218 | ||
1219 | if (!object_acl) { | |
1220 | return false; | |
1221 | } | |
1222 | ||
1223 | bool ret = object_acl->verify_permission(*s->auth.identity, s->perm_mask, perm); | |
1224 | if (ret) { | |
1225 | return true; | |
1226 | } | |
1227 | ||
1228 | if (!s->cct->_conf->rgw_enforce_swift_acls) | |
1229 | return ret; | |
1230 | ||
1231 | if ((perm & (int)s->perm_mask) != perm) | |
1232 | return false; | |
1233 | ||
1234 | int swift_perm = 0; | |
1235 | if (perm & (RGW_PERM_READ | RGW_PERM_READ_ACP)) | |
1236 | swift_perm |= RGW_PERM_READ_OBJS; | |
1237 | if (perm & RGW_PERM_WRITE) | |
1238 | swift_perm |= RGW_PERM_WRITE_OBJS; | |
1239 | ||
1240 | if (!swift_perm) | |
1241 | return false; | |
1242 | ||
1243 | /* we already verified the user mask above, so we pass swift_perm as the mask here, | |
1244 | otherwise the mask might not cover the swift permissions bits */ | |
1245 | if (bucket_acl->verify_permission(*s->auth.identity, swift_perm, swift_perm, | |
1246 | s->info.env->get("HTTP_REFERER"))) | |
1247 | return true; | |
1248 | ||
1249 | if (!user_acl) | |
1250 | return false; | |
1251 | ||
1252 | return user_acl->verify_permission(*s->auth.identity, swift_perm, swift_perm); | |
1253 | } | |
1254 | ||
1255 | bool verify_object_permission_no_policy(struct req_state * const s, | |
1256 | RGWAccessControlPolicy * const user_acl, | |
1257 | RGWAccessControlPolicy * const bucket_acl, | |
1258 | RGWAccessControlPolicy * const object_acl, | |
1259 | const int perm) | |
1260 | { | |
1261 | if (check_deferred_bucket_only_acl(s, user_acl, bucket_acl, RGW_DEFER_TO_BUCKET_ACLS_RECURSE, perm) || | |
1262 | check_deferred_bucket_only_acl(s, user_acl, bucket_acl, RGW_DEFER_TO_BUCKET_ACLS_FULL_CONTROL, RGW_PERM_FULL_CONTROL)) { | |
7c673cae FG |
1263 | return true; |
1264 | } | |
1265 | ||
1266 | if (!object_acl) { | |
1267 | return false; | |
1268 | } | |
1269 | ||
1270 | bool ret = object_acl->verify_permission(*s->auth.identity, s->perm_mask, perm); | |
1271 | if (ret) { | |
1272 | return true; | |
1273 | } | |
1274 | ||
1275 | if (!s->cct->_conf->rgw_enforce_swift_acls) | |
1276 | return ret; | |
1277 | ||
1278 | if ((perm & (int)s->perm_mask) != perm) | |
1279 | return false; | |
1280 | ||
1281 | int swift_perm = 0; | |
1282 | if (perm & (RGW_PERM_READ | RGW_PERM_READ_ACP)) | |
1283 | swift_perm |= RGW_PERM_READ_OBJS; | |
1284 | if (perm & RGW_PERM_WRITE) | |
1285 | swift_perm |= RGW_PERM_WRITE_OBJS; | |
1286 | ||
1287 | if (!swift_perm) | |
1288 | return false; | |
1289 | ||
1290 | /* we already verified the user mask above, so we pass swift_perm as the mask here, | |
1291 | otherwise the mask might not cover the swift permissions bits */ | |
1292 | if (bucket_acl->verify_permission(*s->auth.identity, swift_perm, swift_perm, | |
1293 | s->info.env->get("HTTP_REFERER"))) | |
1294 | return true; | |
1295 | ||
1296 | if (!user_acl) | |
1297 | return false; | |
1298 | ||
1299 | return user_acl->verify_permission(*s->auth.identity, swift_perm, swift_perm); | |
1300 | } | |
1301 | ||
31f18b77 FG |
1302 | bool verify_object_permission_no_policy(struct req_state *s, int perm) |
1303 | { | |
1304 | if (!verify_requester_payer_permission(s)) | |
1305 | return false; | |
1306 | ||
c07f9fc5 FG |
1307 | return verify_object_permission_no_policy(s, |
1308 | s->user_acl.get(), | |
1309 | s->bucket_acl.get(), | |
1310 | s->object_acl.get(), | |
1311 | perm); | |
31f18b77 FG |
1312 | } |
1313 | ||
1314 | bool verify_object_permission(struct req_state *s, uint64_t op) | |
7c673cae FG |
1315 | { |
1316 | return verify_object_permission(s, | |
c07f9fc5 FG |
1317 | rgw_obj(s->bucket, s->object), |
1318 | s->user_acl.get(), | |
1319 | s->bucket_acl.get(), | |
1320 | s->object_acl.get(), | |
1321 | s->iam_policy, | |
31f18b77 | 1322 | op); |
7c673cae FG |
1323 | } |
1324 | ||
1325 | class HexTable | |
1326 | { | |
1327 | char table[256]; | |
1328 | ||
1329 | public: | |
1330 | HexTable() { | |
1331 | memset(table, -1, sizeof(table)); | |
1332 | int i; | |
1333 | for (i = '0'; i<='9'; i++) | |
1334 | table[i] = i - '0'; | |
1335 | for (i = 'A'; i<='F'; i++) | |
1336 | table[i] = i - 'A' + 0xa; | |
1337 | for (i = 'a'; i<='f'; i++) | |
1338 | table[i] = i - 'a' + 0xa; | |
1339 | } | |
1340 | ||
1341 | char to_num(char c) { | |
1342 | return table[(int)c]; | |
1343 | } | |
1344 | }; | |
1345 | ||
1346 | static char hex_to_num(char c) | |
1347 | { | |
1348 | static HexTable hex_table; | |
1349 | return hex_table.to_num(c); | |
1350 | } | |
1351 | ||
31f18b77 | 1352 | std::string url_decode(const boost::string_view& src_str, bool in_query) |
7c673cae | 1353 | { |
31f18b77 FG |
1354 | std::string dest_str; |
1355 | dest_str.reserve(src_str.length() + 1); | |
7c673cae | 1356 | |
31f18b77 | 1357 | for (auto src = std::begin(src_str); src != std::end(src_str); ++src) { |
7c673cae FG |
1358 | if (*src != '%') { |
1359 | if (!in_query || *src != '+') { | |
31f18b77 FG |
1360 | if (*src == '?') { |
1361 | in_query = true; | |
1362 | } | |
1363 | dest_str.push_back(*src); | |
7c673cae | 1364 | } else { |
31f18b77 | 1365 | dest_str.push_back(' '); |
7c673cae FG |
1366 | } |
1367 | } else { | |
31f18b77 FG |
1368 | /* 3 == strlen("%%XX") */ |
1369 | if (std::distance(src, std::end(src_str)) < 3) { | |
7c673cae | 1370 | break; |
31f18b77 FG |
1371 | } |
1372 | ||
1373 | src++; | |
1374 | const char c1 = hex_to_num(*src++); | |
1375 | const char c2 = hex_to_num(*src); | |
1376 | if (c1 < 0 || c2 < 0) { | |
1377 | return std::string(); | |
1378 | } else { | |
1379 | dest_str.push_back(c1 << 4 | c2); | |
1380 | } | |
7c673cae FG |
1381 | } |
1382 | } | |
7c673cae | 1383 | |
31f18b77 | 1384 | return dest_str; |
7c673cae FG |
1385 | } |
1386 | ||
1387 | void rgw_uri_escape_char(char c, string& dst) | |
1388 | { | |
1389 | char buf[16]; | |
1390 | snprintf(buf, sizeof(buf), "%%%.2X", (int)(unsigned char)c); | |
1391 | dst.append(buf); | |
1392 | } | |
1393 | ||
1394 | static bool char_needs_url_encoding(char c) | |
1395 | { | |
1396 | if (c <= 0x20 || c >= 0x7f) | |
1397 | return true; | |
1398 | ||
1399 | switch (c) { | |
1400 | case 0x22: | |
1401 | case 0x23: | |
1402 | case 0x25: | |
1403 | case 0x26: | |
1404 | case 0x2B: | |
1405 | case 0x2C: | |
1406 | case 0x2F: | |
1407 | case 0x3A: | |
1408 | case 0x3B: | |
1409 | case 0x3C: | |
1410 | case 0x3E: | |
1411 | case 0x3D: | |
1412 | case 0x3F: | |
1413 | case 0x40: | |
1414 | case 0x5B: | |
1415 | case 0x5D: | |
1416 | case 0x5C: | |
1417 | case 0x5E: | |
1418 | case 0x60: | |
1419 | case 0x7B: | |
1420 | case 0x7D: | |
1421 | return true; | |
1422 | } | |
1423 | return false; | |
1424 | } | |
1425 | ||
1426 | void url_encode(const string& src, string& dst) | |
1427 | { | |
1428 | const char *p = src.c_str(); | |
1429 | for (unsigned i = 0; i < src.size(); i++, p++) { | |
1430 | if (char_needs_url_encoding(*p)) { | |
1431 | rgw_uri_escape_char(*p, dst); | |
1432 | continue; | |
1433 | } | |
1434 | ||
1435 | dst.append(p, 1); | |
1436 | } | |
1437 | } | |
1438 | ||
1439 | std::string url_encode(const std::string& src) | |
1440 | { | |
1441 | std::string dst; | |
1442 | url_encode(src, dst); | |
1443 | ||
1444 | return dst; | |
1445 | } | |
1446 | ||
1447 | string rgw_trim_whitespace(const string& src) | |
1448 | { | |
1449 | if (src.empty()) { | |
1450 | return string(); | |
1451 | } | |
1452 | ||
1453 | int start = 0; | |
1454 | for (; start != (int)src.size(); start++) { | |
1455 | if (!isspace(src[start])) | |
1456 | break; | |
1457 | } | |
1458 | ||
1459 | int end = src.size() - 1; | |
1460 | if (end < start) { | |
1461 | return string(); | |
1462 | } | |
1463 | ||
1464 | for (; end > start; end--) { | |
1465 | if (!isspace(src[end])) | |
1466 | break; | |
1467 | } | |
1468 | ||
1469 | return src.substr(start, end - start + 1); | |
1470 | } | |
1471 | ||
31f18b77 | 1472 | boost::string_view rgw_trim_whitespace(const boost::string_view& src) |
7c673cae | 1473 | { |
31f18b77 | 1474 | boost::string_view res = src; |
7c673cae FG |
1475 | |
1476 | while (res.size() > 0 && std::isspace(res.front())) { | |
1477 | res.remove_prefix(1); | |
1478 | } | |
1479 | while (res.size() > 0 && std::isspace(res.back())) { | |
1480 | res.remove_suffix(1); | |
1481 | } | |
1482 | return res; | |
1483 | } | |
1484 | ||
1485 | string rgw_trim_quotes(const string& val) | |
1486 | { | |
1487 | string s = rgw_trim_whitespace(val); | |
1488 | if (s.size() < 2) | |
1489 | return s; | |
1490 | ||
1491 | int start = 0; | |
1492 | int end = s.size() - 1; | |
1493 | int quotes_count = 0; | |
1494 | ||
1495 | if (s[start] == '"') { | |
1496 | start++; | |
1497 | quotes_count++; | |
1498 | } | |
1499 | if (s[end] == '"') { | |
1500 | end--; | |
1501 | quotes_count++; | |
1502 | } | |
1503 | if (quotes_count == 2) { | |
1504 | return s.substr(start, end - start + 1); | |
1505 | } | |
1506 | return s; | |
1507 | } | |
1508 | ||
1509 | struct rgw_name_to_flag { | |
1510 | const char *type_name; | |
1511 | uint32_t flag; | |
1512 | }; | |
1513 | ||
1514 | static int parse_list_of_flags(struct rgw_name_to_flag *mapping, | |
1515 | const string& str, uint32_t *perm) | |
1516 | { | |
1517 | list<string> strs; | |
1518 | get_str_list(str, strs); | |
1519 | list<string>::iterator iter; | |
1520 | uint32_t v = 0; | |
1521 | for (iter = strs.begin(); iter != strs.end(); ++iter) { | |
1522 | string& s = *iter; | |
1523 | for (int i = 0; mapping[i].type_name; i++) { | |
1524 | if (s.compare(mapping[i].type_name) == 0) | |
1525 | v |= mapping[i].flag; | |
1526 | } | |
1527 | } | |
1528 | ||
1529 | *perm = v; | |
1530 | return 0; | |
1531 | } | |
1532 | ||
1533 | static struct rgw_name_to_flag cap_names[] = { {"*", RGW_CAP_ALL}, | |
1534 | {"read", RGW_CAP_READ}, | |
1535 | {"write", RGW_CAP_WRITE}, | |
1536 | {NULL, 0} }; | |
1537 | ||
1538 | int RGWUserCaps::parse_cap_perm(const string& str, uint32_t *perm) | |
1539 | { | |
1540 | return parse_list_of_flags(cap_names, str, perm); | |
1541 | } | |
1542 | ||
1543 | int RGWUserCaps::get_cap(const string& cap, string& type, uint32_t *pperm) | |
1544 | { | |
1545 | int pos = cap.find('='); | |
1546 | if (pos >= 0) { | |
31f18b77 | 1547 | type = rgw_trim_whitespace(cap.substr(0, pos)); |
7c673cae FG |
1548 | } |
1549 | ||
1550 | if (!is_valid_cap_type(type)) | |
1551 | return -ERR_INVALID_CAP; | |
1552 | ||
1553 | string cap_perm; | |
1554 | uint32_t perm = 0; | |
1555 | if (pos < (int)cap.size() - 1) { | |
1556 | cap_perm = cap.substr(pos + 1); | |
1557 | int r = RGWUserCaps::parse_cap_perm(cap_perm, &perm); | |
1558 | if (r < 0) | |
1559 | return r; | |
1560 | } | |
1561 | ||
1562 | *pperm = perm; | |
1563 | ||
1564 | return 0; | |
1565 | } | |
1566 | ||
1567 | int RGWUserCaps::add_cap(const string& cap) | |
1568 | { | |
1569 | uint32_t perm; | |
1570 | string type; | |
1571 | ||
1572 | int r = get_cap(cap, type, &perm); | |
1573 | if (r < 0) | |
1574 | return r; | |
1575 | ||
1576 | caps[type] |= perm; | |
1577 | ||
1578 | return 0; | |
1579 | } | |
1580 | ||
1581 | int RGWUserCaps::remove_cap(const string& cap) | |
1582 | { | |
1583 | uint32_t perm; | |
1584 | string type; | |
1585 | ||
1586 | int r = get_cap(cap, type, &perm); | |
1587 | if (r < 0) | |
1588 | return r; | |
1589 | ||
1590 | map<string, uint32_t>::iterator iter = caps.find(type); | |
1591 | if (iter == caps.end()) | |
1592 | return 0; | |
1593 | ||
1594 | uint32_t& old_perm = iter->second; | |
1595 | old_perm &= ~perm; | |
1596 | if (!old_perm) | |
1597 | caps.erase(iter); | |
1598 | ||
1599 | return 0; | |
1600 | } | |
1601 | ||
1602 | int RGWUserCaps::add_from_string(const string& str) | |
1603 | { | |
1604 | int start = 0; | |
1605 | do { | |
31f18b77 FG |
1606 | auto end = str.find(';', start); |
1607 | if (end == string::npos) | |
7c673cae FG |
1608 | end = str.size(); |
1609 | ||
1610 | int r = add_cap(str.substr(start, end - start)); | |
1611 | if (r < 0) | |
1612 | return r; | |
1613 | ||
1614 | start = end + 1; | |
1615 | } while (start < (int)str.size()); | |
1616 | ||
1617 | return 0; | |
1618 | } | |
1619 | ||
1620 | int RGWUserCaps::remove_from_string(const string& str) | |
1621 | { | |
1622 | int start = 0; | |
1623 | do { | |
31f18b77 FG |
1624 | auto end = str.find(';', start); |
1625 | if (end == string::npos) | |
7c673cae FG |
1626 | end = str.size(); |
1627 | ||
1628 | int r = remove_cap(str.substr(start, end - start)); | |
1629 | if (r < 0) | |
1630 | return r; | |
1631 | ||
1632 | start = end + 1; | |
1633 | } while (start < (int)str.size()); | |
1634 | ||
1635 | return 0; | |
1636 | } | |
1637 | ||
1638 | void RGWUserCaps::dump(Formatter *f) const | |
1639 | { | |
1640 | dump(f, "caps"); | |
1641 | } | |
1642 | ||
1643 | void RGWUserCaps::dump(Formatter *f, const char *name) const | |
1644 | { | |
1645 | f->open_array_section(name); | |
1646 | map<string, uint32_t>::const_iterator iter; | |
1647 | for (iter = caps.begin(); iter != caps.end(); ++iter) | |
1648 | { | |
1649 | f->open_object_section("cap"); | |
1650 | f->dump_string("type", iter->first); | |
1651 | uint32_t perm = iter->second; | |
1652 | string perm_str; | |
1653 | for (int i=0; cap_names[i].type_name; i++) { | |
1654 | if ((perm & cap_names[i].flag) == cap_names[i].flag) { | |
1655 | if (perm_str.size()) | |
1656 | perm_str.append(", "); | |
1657 | ||
1658 | perm_str.append(cap_names[i].type_name); | |
1659 | perm &= ~cap_names[i].flag; | |
1660 | } | |
1661 | } | |
1662 | if (perm_str.empty()) | |
1663 | perm_str = "<none>"; | |
1664 | ||
1665 | f->dump_string("perm", perm_str); | |
1666 | f->close_section(); | |
1667 | } | |
1668 | ||
1669 | f->close_section(); | |
1670 | } | |
1671 | ||
1672 | struct RGWUserCap { | |
1673 | string type; | |
1674 | uint32_t perm; | |
1675 | ||
1676 | void decode_json(JSONObj *obj) { | |
1677 | JSONDecoder::decode_json("type", type, obj); | |
1678 | string perm_str; | |
1679 | JSONDecoder::decode_json("perm", perm_str, obj); | |
1680 | if (RGWUserCaps::parse_cap_perm(perm_str, &perm) < 0) { | |
1681 | throw JSONDecoder::err("failed to parse permissions"); | |
1682 | } | |
1683 | } | |
1684 | }; | |
1685 | ||
1686 | void RGWUserCaps::decode_json(JSONObj *obj) | |
1687 | { | |
1688 | list<RGWUserCap> caps_list; | |
1689 | decode_json_obj(caps_list, obj); | |
1690 | ||
1691 | list<RGWUserCap>::iterator iter; | |
1692 | for (iter = caps_list.begin(); iter != caps_list.end(); ++iter) { | |
1693 | RGWUserCap& cap = *iter; | |
1694 | caps[cap.type] = cap.perm; | |
1695 | } | |
1696 | } | |
1697 | ||
1698 | int RGWUserCaps::check_cap(const string& cap, uint32_t perm) | |
1699 | { | |
1700 | map<string, uint32_t>::iterator iter = caps.find(cap); | |
1701 | ||
1702 | if ((iter == caps.end()) || | |
1703 | (iter->second & perm) != perm) { | |
1704 | return -EPERM; | |
1705 | } | |
1706 | ||
1707 | return 0; | |
1708 | } | |
1709 | ||
1710 | bool RGWUserCaps::is_valid_cap_type(const string& tp) | |
1711 | { | |
1712 | static const char *cap_type[] = { "user", | |
1713 | "users", | |
1714 | "buckets", | |
1715 | "metadata", | |
1716 | "usage", | |
1717 | "zone", | |
1718 | "bilog", | |
1719 | "mdlog", | |
1720 | "datalog", | |
1721 | "opstate" }; | |
1722 | ||
1723 | for (unsigned int i = 0; i < sizeof(cap_type) / sizeof(char *); ++i) { | |
1724 | if (tp.compare(cap_type[i]) == 0) { | |
1725 | return true; | |
1726 | } | |
1727 | } | |
1728 | ||
1729 | return false; | |
1730 | } | |
1731 | ||
1732 | static ssize_t unescape_str(const string& s, ssize_t ofs, char esc_char, char special_char, string *dest) | |
1733 | { | |
1734 | const char *src = s.c_str(); | |
1735 | char dest_buf[s.size() + 1]; | |
1736 | char *destp = dest_buf; | |
1737 | bool esc = false; | |
1738 | ||
1739 | dest_buf[0] = '\0'; | |
1740 | ||
1741 | for (size_t i = ofs; i < s.size(); i++) { | |
1742 | char c = src[i]; | |
1743 | if (!esc && c == esc_char) { | |
1744 | esc = true; | |
1745 | continue; | |
1746 | } | |
1747 | if (!esc && c == special_char) { | |
1748 | *destp = '\0'; | |
1749 | *dest = dest_buf; | |
1750 | return (ssize_t)i + 1; | |
1751 | } | |
1752 | *destp++ = c; | |
1753 | esc = false; | |
1754 | } | |
1755 | *destp = '\0'; | |
1756 | *dest = dest_buf; | |
1757 | return string::npos; | |
1758 | } | |
1759 | ||
1760 | static void escape_str(const string& s, char esc_char, char special_char, string *dest) | |
1761 | { | |
1762 | const char *src = s.c_str(); | |
1763 | char dest_buf[s.size() * 2 + 1]; | |
1764 | char *destp = dest_buf; | |
1765 | ||
1766 | for (size_t i = 0; i < s.size(); i++) { | |
1767 | char c = src[i]; | |
1768 | if (c == esc_char || c == special_char) { | |
1769 | *destp++ = esc_char; | |
1770 | } | |
1771 | *destp++ = c; | |
1772 | } | |
1773 | *destp++ = '\0'; | |
1774 | *dest = dest_buf; | |
1775 | } | |
1776 | ||
1777 | void rgw_pool::from_str(const string& s) | |
1778 | { | |
1779 | size_t pos = unescape_str(s, 0, '\\', ':', &name); | |
1780 | if (pos != string::npos) { | |
1781 | pos = unescape_str(s, pos, '\\', ':', &ns); | |
1782 | /* ignore return; if pos != string::npos it means that we had a colon | |
1783 | * in the middle of ns that wasn't escaped, we're going to stop there | |
1784 | */ | |
1785 | } | |
1786 | } | |
1787 | ||
1788 | string rgw_pool::to_str() const | |
1789 | { | |
1790 | string esc_name; | |
1791 | escape_str(name, '\\', ':', &esc_name); | |
1792 | if (ns.empty()) { | |
1793 | return esc_name; | |
1794 | } | |
1795 | string esc_ns; | |
1796 | escape_str(ns, '\\', ':', &esc_ns); | |
1797 | return esc_name + ":" + esc_ns; | |
1798 | } | |
1799 | ||
1800 | void rgw_raw_obj::decode_from_rgw_obj(bufferlist::iterator& bl) | |
1801 | { | |
1802 | rgw_obj old_obj; | |
1803 | ::decode(old_obj, bl); | |
1804 | ||
1805 | get_obj_bucket_and_oid_loc(old_obj, oid, loc); | |
1806 | pool = old_obj.get_explicit_data_pool(); | |
1807 | } | |
1808 | ||
1809 | std::string rgw_bucket::get_key(char tenant_delim, char id_delim) const | |
1810 | { | |
1811 | static constexpr size_t shard_len{12}; // ":4294967295\0" | |
1812 | const size_t max_len = tenant.size() + sizeof(tenant_delim) + | |
1813 | name.size() + sizeof(id_delim) + bucket_id.size() + shard_len; | |
1814 | ||
1815 | std::string key; | |
1816 | key.reserve(max_len); | |
1817 | if (!tenant.empty() && tenant_delim) { | |
1818 | key.append(tenant); | |
1819 | key.append(1, tenant_delim); | |
1820 | } | |
1821 | key.append(name); | |
1822 | if (!bucket_id.empty() && id_delim) { | |
1823 | key.append(1, id_delim); | |
1824 | key.append(bucket_id); | |
1825 | } | |
1826 | return key; | |
1827 | } | |
1828 | ||
1829 | std::string rgw_bucket_shard::get_key(char tenant_delim, char id_delim, | |
1830 | char shard_delim) const | |
1831 | { | |
1832 | auto key = bucket.get_key(tenant_delim, id_delim); | |
1833 | if (shard_id >= 0 && shard_delim) { | |
1834 | key.append(1, shard_delim); | |
1835 | key.append(std::to_string(shard_id)); | |
1836 | } | |
1837 | return key; | |
1838 | } | |
1839 | ||
1840 | static struct rgw_name_to_flag op_type_mapping[] = { {"*", RGW_OP_TYPE_ALL}, | |
1841 | {"read", RGW_OP_TYPE_READ}, | |
1842 | {"write", RGW_OP_TYPE_WRITE}, | |
1843 | {"delete", RGW_OP_TYPE_DELETE}, | |
1844 | {NULL, 0} }; | |
1845 | ||
1846 | ||
1847 | int rgw_parse_op_type_list(const string& str, uint32_t *perm) | |
1848 | { | |
1849 | return parse_list_of_flags(op_type_mapping, str, perm); | |
1850 | } | |
1851 | ||
1852 | static int match_internal(boost::string_ref pattern, boost::string_ref input, int (*function)(const char&, const char&)) | |
1853 | { | |
1854 | boost::string_ref::iterator it1 = pattern.begin(); | |
1855 | boost::string_ref::iterator it2 = input.begin(); | |
1856 | while(true) { | |
1857 | if (it1 == pattern.end() && it2 == input.end()) | |
1858 | return 1; | |
1859 | if (it1 == pattern.end() || it2 == input.end()) | |
1860 | return 0; | |
1861 | if (*it1 == '*' && (it1 + 1) == pattern.end() && it2 != input.end()) | |
1862 | return 1; | |
1863 | if (*it1 == '*' && (it1 + 1) == pattern.end() && it2 == input.end()) | |
1864 | return 0; | |
1865 | if (function(*it1, *it2) || *it1 == '?') { | |
1866 | ++it1; | |
1867 | ++it2; | |
1868 | continue; | |
1869 | } | |
1870 | if (*it1 == '*') { | |
1871 | if (function(*(it1 + 1), *it2)) | |
1872 | ++it1; | |
1873 | else | |
1874 | ++it2; | |
1875 | continue; | |
1876 | } | |
1877 | return 0; | |
1878 | } | |
1879 | return 0; | |
1880 | } | |
1881 | ||
1882 | static int matchcase(const char& c1, const char& c2) | |
1883 | { | |
1884 | if (c1 == c2) | |
1885 | return 1; | |
1886 | return 0; | |
1887 | } | |
1888 | ||
1889 | static int matchignorecase(const char& c1, const char& c2) | |
1890 | { | |
1891 | if (tolower(c1) == tolower(c2)) | |
1892 | return 1; | |
1893 | return 0; | |
1894 | } | |
1895 | ||
31f18b77 | 1896 | int match(const string& pattern, const string& input, uint32_t flag) |
7c673cae FG |
1897 | { |
1898 | auto last_pos_input = 0, last_pos_pattern = 0; | |
1899 | ||
1900 | while(true) { | |
1901 | auto cur_pos_input = input.find(":", last_pos_input); | |
1902 | auto cur_pos_pattern = pattern.find(":", last_pos_pattern); | |
1903 | ||
1904 | string substr_input = input.substr(last_pos_input, cur_pos_input); | |
1905 | string substr_pattern = pattern.substr(last_pos_pattern, cur_pos_pattern); | |
1906 | ||
1907 | int res; | |
31f18b77 FG |
1908 | if (substr_pattern == "*") { |
1909 | res = 1; | |
1910 | } else if (flag & MATCH_POLICY_ACTION || flag & MATCH_POLICY_ARN) { | |
7c673cae FG |
1911 | res = match_internal(substr_pattern, substr_input, &matchignorecase); |
1912 | } else { | |
1913 | res = match_internal(substr_pattern, substr_input, &matchcase); | |
1914 | } | |
1915 | if (res == 0) | |
1916 | return 0; | |
1917 | ||
1918 | if (cur_pos_pattern == string::npos && cur_pos_input == string::npos) | |
1919 | return 1; | |
1920 | else if ((cur_pos_pattern == string::npos && cur_pos_input != string::npos) || | |
31f18b77 | 1921 | (cur_pos_pattern != string::npos && cur_pos_input == string::npos)) |
7c673cae FG |
1922 | return 0; |
1923 | ||
1924 | last_pos_pattern = cur_pos_pattern + 1; | |
1925 | last_pos_input = cur_pos_input + 1; | |
1926 | } | |
1927 | } |