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1 | // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- |
2 | // vim: ts=8 sw=2 smarttab | |
3 | ||
4 | #include <array> | |
5 | ||
6 | #include <boost/utility/string_ref.hpp> | |
7 | #include <boost/container/static_vector.hpp> | |
8 | ||
9 | #include "rgw_swift_auth.h" | |
10 | #include "rgw_rest.h" | |
11 | ||
12 | #include "common/ceph_crypto.h" | |
13 | #include "common/Clock.h" | |
14 | ||
15 | #include "auth/Crypto.h" | |
16 | ||
17 | #include "rgw_client_io.h" | |
18 | #include "rgw_http_client.h" | |
19 | #include "include/str_list.h" | |
20 | ||
21 | #define dout_context g_ceph_context | |
22 | #define dout_subsys ceph_subsys_rgw | |
23 | ||
24 | #define DEFAULT_SWIFT_PREFIX "/swift" | |
25 | ||
26 | using namespace ceph::crypto; | |
27 | ||
28 | ||
29 | namespace rgw { | |
30 | namespace auth { | |
31 | namespace swift { | |
32 | ||
33 | /* TempURL: applier */ | |
34 | void TempURLApplier::modify_request_state(req_state* s) const /* in/out */ | |
35 | { | |
36 | bool inline_exists = false; | |
37 | const std::string& filename = s->info.args.get("filename"); | |
38 | ||
39 | s->info.args.get("inline", &inline_exists); | |
40 | if (inline_exists) { | |
41 | s->content_disp.override = "inline"; | |
42 | } else if (!filename.empty()) { | |
43 | std::string fenc; | |
44 | url_encode(filename, fenc); | |
45 | s->content_disp.override = "attachment; filename=\"" + fenc + "\""; | |
46 | } else { | |
47 | std::string fenc; | |
48 | url_encode(s->object.name, fenc); | |
49 | s->content_disp.fallback = "attachment; filename=\"" + fenc + "\""; | |
50 | } | |
51 | ||
52 | ldout(s->cct, 20) << "finished applying changes to req_state for TempURL: " | |
53 | << " content_disp override " << s->content_disp.override | |
54 | << " content_disp fallback " << s->content_disp.fallback | |
55 | << dendl; | |
56 | ||
57 | } | |
58 | ||
59 | /* TempURL: engine */ | |
60 | bool TempURLEngine::is_applicable(const req_state* const s) const noexcept | |
61 | { | |
62 | return s->info.args.exists("temp_url_sig") || | |
63 | s->info.args.exists("temp_url_expires"); | |
64 | } | |
65 | ||
66 | void TempURLEngine::get_owner_info(const req_state* const s, | |
67 | RGWUserInfo& owner_info) const | |
68 | { | |
69 | /* We cannot use req_state::bucket_name because it isn't available | |
70 | * now. It will be initialized in RGWHandler_REST_SWIFT::postauth_init(). */ | |
71 | const string& bucket_name = s->init_state.url_bucket; | |
72 | ||
73 | /* TempURL requires that bucket and object names are specified. */ | |
74 | if (bucket_name.empty() || s->object.empty()) { | |
75 | throw -EPERM; | |
76 | } | |
77 | ||
78 | /* TempURL case is completely different than the Keystone auth - you may | |
79 | * get account name only through extraction from URL. In turn, knowledge | |
80 | * about account is neccessary to obtain its bucket tenant. Without that, | |
81 | * the access would be limited to accounts with empty tenant. */ | |
82 | string bucket_tenant; | |
83 | if (!s->account_name.empty()) { | |
84 | RGWUserInfo uinfo; | |
85 | bool found = false; | |
86 | ||
87 | const rgw_user uid(s->account_name); | |
88 | if (uid.tenant.empty()) { | |
89 | const rgw_user tenanted_uid(uid.id, uid.id); | |
90 | ||
91 | if (rgw_get_user_info_by_uid(store, tenanted_uid, uinfo) >= 0) { | |
92 | /* Succeeded. */ | |
93 | bucket_tenant = uinfo.user_id.tenant; | |
94 | found = true; | |
95 | } | |
96 | } | |
97 | ||
98 | if (!found && rgw_get_user_info_by_uid(store, uid, uinfo) < 0) { | |
99 | throw -EPERM; | |
100 | } else { | |
101 | bucket_tenant = uinfo.user_id.tenant; | |
102 | } | |
103 | } | |
104 | ||
105 | /* Need to get user info of bucket owner. */ | |
106 | RGWBucketInfo bucket_info; | |
107 | int ret = store->get_bucket_info(*static_cast<RGWObjectCtx *>(s->obj_ctx), | |
108 | bucket_tenant, bucket_name, | |
109 | bucket_info, nullptr); | |
110 | if (ret < 0) { | |
111 | throw ret; | |
112 | } | |
113 | ||
114 | ldout(cct, 20) << "temp url user (bucket owner): " << bucket_info.owner | |
115 | << dendl; | |
116 | ||
117 | if (rgw_get_user_info_by_uid(store, bucket_info.owner, owner_info) < 0) { | |
118 | throw -EPERM; | |
119 | } | |
120 | } | |
121 | ||
122 | bool TempURLEngine::is_expired(const std::string& expires) const | |
123 | { | |
124 | string err; | |
125 | const utime_t now = ceph_clock_now(); | |
126 | const uint64_t expiration = (uint64_t)strict_strtoll(expires.c_str(), | |
127 | 10, &err); | |
128 | if (!err.empty()) { | |
129 | dout(5) << "failed to parse temp_url_expires: " << err << dendl; | |
130 | return true; | |
131 | } | |
132 | ||
133 | if (expiration <= (uint64_t)now.sec()) { | |
134 | dout(5) << "temp url expired: " << expiration << " <= " << now.sec() << dendl; | |
135 | return true; | |
136 | } | |
137 | ||
138 | return false; | |
139 | } | |
140 | ||
141 | std::string extract_swift_subuser(const std::string& swift_user_name) { | |
142 | size_t pos = swift_user_name.find(':'); | |
143 | if (std::string::npos == pos) { | |
144 | return swift_user_name; | |
145 | } else { | |
146 | return swift_user_name.substr(pos + 1); | |
147 | } | |
148 | } | |
149 | ||
150 | class TempURLEngine::SignatureHelper | |
151 | { | |
152 | private: | |
153 | static constexpr uint32_t output_size = | |
154 | CEPH_CRYPTO_HMACSHA1_DIGESTSIZE * 2 + 1; | |
155 | ||
156 | unsigned char dest[CEPH_CRYPTO_HMACSHA1_DIGESTSIZE]; // 20 | |
157 | char dest_str[output_size]; | |
158 | ||
159 | public: | |
160 | SignatureHelper() = default; | |
161 | ||
162 | const char* calc(const std::string& key, | |
163 | const boost::string_ref& method, | |
164 | const boost::string_ref& path, | |
165 | const std::string& expires) { | |
166 | ||
167 | using ceph::crypto::HMACSHA1; | |
168 | using UCHARPTR = const unsigned char*; | |
169 | ||
170 | HMACSHA1 hmac((UCHARPTR) key.c_str(), key.size()); | |
171 | hmac.Update((UCHARPTR) method.data(), method.size()); | |
172 | hmac.Update((UCHARPTR) "\n", 1); | |
173 | hmac.Update((UCHARPTR) expires.c_str(), expires.size()); | |
174 | hmac.Update((UCHARPTR) "\n", 1); | |
175 | hmac.Update((UCHARPTR) path.data(), path.size()); | |
176 | hmac.Final(dest); | |
177 | ||
178 | buf_to_hex((UCHARPTR) dest, sizeof(dest), dest_str); | |
179 | ||
180 | return dest_str; | |
181 | } | |
182 | ||
183 | bool is_equal_to(const std::string& rhs) const { | |
184 | /* never allow out-of-range exception */ | |
185 | if (rhs.size() < (output_size - 1)) { | |
186 | return false; | |
187 | } | |
188 | return rhs.compare(0 /* pos */, output_size, dest_str) == 0; | |
189 | } | |
190 | ||
191 | }; /* TempURLEngine::SignatureHelper */ | |
192 | ||
193 | TempURLEngine::result_t | |
194 | TempURLEngine::authenticate(const req_state* const s) const | |
195 | { | |
196 | if (! is_applicable(s)) { | |
197 | return result_t::deny(); | |
198 | } | |
199 | ||
200 | const string& temp_url_sig = s->info.args.get("temp_url_sig"); | |
201 | const string& temp_url_expires = s->info.args.get("temp_url_expires"); | |
202 | ||
203 | if (temp_url_sig.empty() || temp_url_expires.empty()) { | |
204 | return result_t::deny(); | |
205 | } | |
206 | ||
207 | RGWUserInfo owner_info; | |
208 | try { | |
209 | get_owner_info(s, owner_info); | |
210 | } catch (...) { | |
211 | ldout(cct, 5) << "cannot get user_info of account's owner" << dendl; | |
212 | return result_t::reject(); | |
213 | } | |
214 | ||
215 | if (owner_info.temp_url_keys.empty()) { | |
216 | ldout(cct, 5) << "user does not have temp url key set, aborting" << dendl; | |
217 | return result_t::reject(); | |
218 | } | |
219 | ||
220 | if (is_expired(temp_url_expires)) { | |
221 | ldout(cct, 5) << "temp url link expired" << dendl; | |
224ce89b | 222 | return result_t::reject(-EPERM); |
7c673cae FG |
223 | } |
224 | ||
225 | /* We need to verify two paths because of compliance with Swift, Tempest | |
226 | * and old versions of RadosGW. The second item will have the prefix | |
227 | * of Swift API entry point removed. */ | |
228 | ||
229 | /* XXX can we search this ONCE? */ | |
230 | const size_t pos = g_conf->rgw_swift_url_prefix.find_last_not_of('/') + 1; | |
231 | boost::string_ref ref_uri = s->decoded_uri; | |
232 | const std::array<boost::string_ref, 2> allowed_paths = { | |
233 | ref_uri, | |
234 | ref_uri.substr(pos + 1) | |
235 | }; | |
236 | ||
237 | /* Account owner calculates the signature also against a HTTP method. */ | |
238 | boost::container::static_vector<boost::string_ref, 3> allowed_methods; | |
239 | if (strcmp("HEAD", s->info.method) == 0) { | |
240 | /* HEAD requests are specially handled. */ | |
241 | /* TODO: after getting a newer boost (with static_vector supporting | |
242 | * initializers lists), get back to the good notation: | |
243 | * allowed_methods = {"HEAD", "GET", "PUT" }; | |
244 | * Just for now let's use emplace_back to construct the vector. */ | |
245 | allowed_methods.emplace_back("HEAD"); | |
246 | allowed_methods.emplace_back("GET"); | |
247 | allowed_methods.emplace_back("PUT"); | |
248 | } else if (strlen(s->info.method) > 0) { | |
249 | allowed_methods.emplace_back(s->info.method); | |
250 | } | |
251 | ||
252 | /* Need to try each combination of keys, allowed path and methods. */ | |
253 | SignatureHelper sig_helper; | |
254 | for (const auto& kv : owner_info.temp_url_keys) { | |
255 | const int temp_url_key_num = kv.first; | |
256 | const string& temp_url_key = kv.second; | |
257 | ||
258 | if (temp_url_key.empty()) { | |
259 | continue; | |
260 | } | |
261 | ||
262 | for (const auto& path : allowed_paths) { | |
263 | for (const auto& method : allowed_methods) { | |
264 | const char* const local_sig = sig_helper.calc(temp_url_key, method, | |
265 | path, temp_url_expires); | |
266 | ||
267 | ldout(s->cct, 20) << "temp url signature [" << temp_url_key_num | |
268 | << "] (calculated): " << local_sig | |
269 | << dendl; | |
270 | ||
271 | if (sig_helper.is_equal_to(temp_url_sig)) { | |
272 | auto apl = apl_factory->create_apl_turl(cct, s, owner_info); | |
273 | return result_t::grant(std::move(apl)); | |
274 | } else { | |
275 | ldout(s->cct, 5) << "temp url signature mismatch: " << local_sig | |
276 | << " != " << temp_url_sig << dendl; | |
277 | } | |
278 | } | |
279 | } | |
280 | } | |
281 | ||
282 | return result_t::reject(); | |
283 | } | |
284 | ||
285 | ||
286 | /* External token */ | |
287 | bool ExternalTokenEngine::is_applicable(const std::string& token) const noexcept | |
288 | { | |
289 | if (token.empty()) { | |
290 | return false; | |
291 | } else if (g_conf->rgw_swift_auth_url.empty()) { | |
292 | return false; | |
293 | } else { | |
294 | return true; | |
295 | } | |
296 | } | |
297 | ||
298 | ExternalTokenEngine::result_t | |
299 | ExternalTokenEngine::authenticate(const std::string& token, | |
300 | const req_state* const s) const | |
301 | { | |
302 | if (! is_applicable(token)) { | |
303 | return result_t::deny(); | |
304 | } | |
305 | ||
306 | std::string auth_url = g_conf->rgw_swift_auth_url; | |
31f18b77 | 307 | if (auth_url.back() != '/') { |
7c673cae FG |
308 | auth_url.append("/"); |
309 | } | |
310 | ||
311 | auth_url.append("token"); | |
312 | char url_buf[auth_url.size() + 1 + token.length() + 1]; | |
313 | sprintf(url_buf, "%s/%s", auth_url.c_str(), token.c_str()); | |
314 | ||
315 | RGWHTTPHeadersCollector validator(cct, { "X-Auth-Groups", "X-Auth-Ttl" }); | |
316 | ||
317 | ldout(cct, 10) << "rgw_swift_validate_token url=" << url_buf << dendl; | |
318 | ||
319 | int ret = validator.process(url_buf); | |
320 | if (ret < 0) { | |
321 | throw ret; | |
322 | } | |
323 | ||
324 | std::string swift_user; | |
325 | try { | |
326 | std::vector<std::string> swift_groups; | |
327 | get_str_vec(validator.get_header_value("X-Auth-Groups"), | |
328 | ",", swift_groups); | |
329 | ||
330 | if (0 == swift_groups.size()) { | |
31f18b77 | 331 | return result_t::deny(-EPERM); |
7c673cae FG |
332 | } else { |
333 | swift_user = std::move(swift_groups[0]); | |
334 | } | |
335 | } catch (std::out_of_range) { | |
336 | /* The X-Auth-Groups header isn't present in the response. */ | |
31f18b77 | 337 | return result_t::deny(-EPERM); |
7c673cae FG |
338 | } |
339 | ||
340 | if (swift_user.empty()) { | |
31f18b77 | 341 | return result_t::deny(-EPERM); |
7c673cae FG |
342 | } |
343 | ||
344 | ldout(cct, 10) << "swift user=" << swift_user << dendl; | |
345 | ||
346 | RGWUserInfo tmp_uinfo; | |
347 | ret = rgw_get_user_info_by_swift(store, swift_user, tmp_uinfo); | |
348 | if (ret < 0) { | |
349 | ldout(cct, 0) << "NOTICE: couldn't map swift user" << dendl; | |
350 | throw ret; | |
351 | } | |
352 | ||
353 | auto apl = apl_factory->create_apl_local(cct, s, tmp_uinfo, | |
354 | extract_swift_subuser(swift_user)); | |
355 | return result_t::grant(std::move(apl)); | |
356 | } | |
357 | ||
358 | static int build_token(const string& swift_user, | |
359 | const string& key, | |
360 | const uint64_t nonce, | |
361 | const utime_t& expiration, | |
362 | bufferlist& bl) | |
363 | { | |
364 | ::encode(swift_user, bl); | |
365 | ::encode(nonce, bl); | |
366 | ::encode(expiration, bl); | |
367 | ||
368 | bufferptr p(CEPH_CRYPTO_HMACSHA1_DIGESTSIZE); | |
369 | ||
370 | char buf[bl.length() * 2 + 1]; | |
371 | buf_to_hex((const unsigned char *)bl.c_str(), bl.length(), buf); | |
372 | dout(20) << "build_token token=" << buf << dendl; | |
373 | ||
374 | char k[CEPH_CRYPTO_HMACSHA1_DIGESTSIZE]; | |
375 | memset(k, 0, sizeof(k)); | |
376 | const char *s = key.c_str(); | |
377 | for (int i = 0; i < (int)key.length(); i++, s++) { | |
378 | k[i % CEPH_CRYPTO_HMACSHA1_DIGESTSIZE] |= *s; | |
379 | } | |
380 | calc_hmac_sha1(k, sizeof(k), bl.c_str(), bl.length(), p.c_str()); | |
381 | ||
382 | bl.append(p); | |
383 | ||
384 | return 0; | |
385 | ||
386 | } | |
387 | ||
388 | static int encode_token(CephContext *cct, string& swift_user, string& key, | |
389 | bufferlist& bl) | |
390 | { | |
391 | uint64_t nonce; | |
392 | ||
393 | int ret = get_random_bytes((char *)&nonce, sizeof(nonce)); | |
394 | if (ret < 0) | |
395 | return ret; | |
396 | ||
397 | utime_t expiration = ceph_clock_now(); | |
398 | expiration += cct->_conf->rgw_swift_token_expiration; | |
399 | ||
400 | return build_token(swift_user, key, nonce, expiration, bl); | |
401 | } | |
402 | ||
403 | ||
404 | /* AUTH_rgwtk (signed token): engine */ | |
405 | bool SignedTokenEngine::is_applicable(const std::string& token) const noexcept | |
406 | { | |
407 | if (token.empty()) { | |
408 | return false; | |
409 | } else { | |
410 | return token.compare(0, 10, "AUTH_rgwtk") == 0; | |
411 | } | |
412 | } | |
413 | ||
414 | SignedTokenEngine::result_t | |
415 | SignedTokenEngine::authenticate(const std::string& token, | |
416 | const req_state* const s) const | |
417 | { | |
418 | if (! is_applicable(token)) { | |
31f18b77 | 419 | return result_t::deny(-EPERM); |
7c673cae FG |
420 | } |
421 | ||
422 | /* Effective token string is the part after the prefix. */ | |
423 | const std::string etoken = token.substr(strlen("AUTH_rgwtk")); | |
424 | const size_t etoken_len = etoken.length(); | |
425 | ||
426 | if (etoken_len & 1) { | |
427 | ldout(cct, 0) << "NOTICE: failed to verify token: odd token length=" | |
428 | << etoken_len << dendl; | |
429 | throw -EINVAL; | |
430 | } | |
431 | ||
432 | ceph::bufferptr p(etoken_len/2); | |
433 | int ret = hex_to_buf(etoken.c_str(), p.c_str(), etoken_len); | |
434 | if (ret < 0) { | |
435 | throw ret; | |
436 | } | |
437 | ||
438 | ceph::bufferlist tok_bl; | |
439 | tok_bl.append(p); | |
440 | ||
441 | uint64_t nonce; | |
442 | utime_t expiration; | |
443 | std::string swift_user; | |
444 | ||
445 | try { | |
446 | /*const*/ auto iter = tok_bl.begin(); | |
447 | ||
448 | ::decode(swift_user, iter); | |
449 | ::decode(nonce, iter); | |
450 | ::decode(expiration, iter); | |
451 | } catch (buffer::error& err) { | |
452 | ldout(cct, 0) << "NOTICE: failed to decode token" << dendl; | |
453 | throw -EINVAL; | |
454 | } | |
455 | ||
456 | const utime_t now = ceph_clock_now(); | |
457 | if (expiration < now) { | |
458 | ldout(cct, 0) << "NOTICE: old timed out token was used now=" << now | |
459 | << " token.expiration=" << expiration | |
460 | << dendl; | |
31f18b77 | 461 | return result_t::deny(-EPERM); |
7c673cae FG |
462 | } |
463 | ||
464 | RGWUserInfo user_info; | |
465 | ret = rgw_get_user_info_by_swift(store, swift_user, user_info); | |
466 | if (ret < 0) { | |
467 | throw ret; | |
468 | } | |
469 | ||
470 | ldout(cct, 10) << "swift_user=" << swift_user << dendl; | |
471 | ||
472 | const auto siter = user_info.swift_keys.find(swift_user); | |
473 | if (siter == std::end(user_info.swift_keys)) { | |
31f18b77 | 474 | return result_t::deny(-EPERM); |
7c673cae FG |
475 | } |
476 | ||
477 | const auto swift_key = siter->second; | |
478 | ||
479 | bufferlist local_tok_bl; | |
480 | ret = build_token(swift_user, swift_key.key, nonce, expiration, local_tok_bl); | |
481 | if (ret < 0) { | |
482 | throw ret; | |
483 | } | |
484 | ||
485 | if (local_tok_bl.length() != tok_bl.length()) { | |
486 | ldout(cct, 0) << "NOTICE: tokens length mismatch:" | |
487 | << " tok_bl.length()=" << tok_bl.length() | |
488 | << " local_tok_bl.length()=" << local_tok_bl.length() | |
489 | << dendl; | |
31f18b77 | 490 | return result_t::deny(-EPERM); |
7c673cae FG |
491 | } |
492 | ||
493 | if (memcmp(local_tok_bl.c_str(), tok_bl.c_str(), | |
494 | local_tok_bl.length()) != 0) { | |
495 | char buf[local_tok_bl.length() * 2 + 1]; | |
496 | ||
497 | buf_to_hex(reinterpret_cast<const unsigned char *>(local_tok_bl.c_str()), | |
498 | local_tok_bl.length(), buf); | |
499 | ||
500 | ldout(cct, 0) << "NOTICE: tokens mismatch tok=" << buf << dendl; | |
31f18b77 | 501 | return result_t::deny(-EPERM); |
7c673cae FG |
502 | } |
503 | ||
504 | auto apl = apl_factory->create_apl_local(cct, s, user_info, | |
505 | extract_swift_subuser(swift_user)); | |
506 | return result_t::grant(std::move(apl)); | |
507 | } | |
508 | ||
509 | } /* namespace swift */ | |
510 | } /* namespace auth */ | |
511 | } /* namespace rgw */ | |
512 | ||
513 | ||
514 | void RGW_SWIFT_Auth_Get::execute() | |
515 | { | |
516 | int ret = -EPERM; | |
517 | ||
518 | const char *key = s->info.env->get("HTTP_X_AUTH_KEY"); | |
519 | const char *user = s->info.env->get("HTTP_X_AUTH_USER"); | |
520 | ||
521 | s->prot_flags |= RGW_REST_SWIFT; | |
522 | ||
523 | string user_str; | |
524 | RGWUserInfo info; | |
525 | bufferlist bl; | |
526 | RGWAccessKey *swift_key; | |
527 | map<string, RGWAccessKey>::iterator siter; | |
528 | ||
529 | string swift_url = g_conf->rgw_swift_url; | |
530 | string swift_prefix = g_conf->rgw_swift_url_prefix; | |
531 | string tenant_path; | |
532 | ||
533 | /* | |
534 | * We did not allow an empty Swift prefix before, but we want it now. | |
535 | * So, we take rgw_swift_url_prefix = "/" to yield the empty prefix. | |
536 | * The rgw_swift_url_prefix = "" is the default and yields "/swift" | |
537 | * in a backwards-compatible way. | |
538 | */ | |
539 | if (swift_prefix.size() == 0) { | |
540 | swift_prefix = DEFAULT_SWIFT_PREFIX; | |
541 | } else if (swift_prefix == "/") { | |
542 | swift_prefix.clear(); | |
543 | } else { | |
544 | if (swift_prefix[0] != '/') { | |
545 | swift_prefix.insert(0, "/"); | |
546 | } | |
547 | } | |
548 | ||
549 | if (swift_url.size() == 0) { | |
550 | bool add_port = false; | |
551 | const char *server_port = s->info.env->get("SERVER_PORT_SECURE"); | |
552 | const char *protocol; | |
553 | if (server_port) { | |
554 | add_port = (strcmp(server_port, "443") != 0); | |
555 | protocol = "https"; | |
556 | } else { | |
557 | server_port = s->info.env->get("SERVER_PORT"); | |
558 | add_port = (strcmp(server_port, "80") != 0); | |
559 | protocol = "http"; | |
560 | } | |
561 | const char *host = s->info.env->get("HTTP_HOST"); | |
562 | if (!host) { | |
563 | dout(0) << "NOTICE: server is misconfigured, missing rgw_swift_url_prefix or rgw_swift_url, HTTP_HOST is not set" << dendl; | |
564 | ret = -EINVAL; | |
565 | goto done; | |
566 | } | |
567 | swift_url = protocol; | |
568 | swift_url.append("://"); | |
569 | swift_url.append(host); | |
570 | if (add_port && !strchr(host, ':')) { | |
571 | swift_url.append(":"); | |
572 | swift_url.append(server_port); | |
573 | } | |
574 | } | |
575 | ||
576 | if (!key || !user) | |
577 | goto done; | |
578 | ||
579 | user_str = user; | |
580 | ||
581 | if ((ret = rgw_get_user_info_by_swift(store, user_str, info)) < 0) | |
582 | { | |
583 | ret = -EACCES; | |
584 | goto done; | |
585 | } | |
586 | ||
587 | siter = info.swift_keys.find(user_str); | |
588 | if (siter == info.swift_keys.end()) { | |
589 | ret = -EPERM; | |
590 | goto done; | |
591 | } | |
592 | swift_key = &siter->second; | |
593 | ||
594 | if (swift_key->key.compare(key) != 0) { | |
595 | dout(0) << "NOTICE: RGW_SWIFT_Auth_Get::execute(): bad swift key" << dendl; | |
596 | ret = -EPERM; | |
597 | goto done; | |
598 | } | |
599 | ||
600 | if (!g_conf->rgw_swift_tenant_name.empty()) { | |
601 | tenant_path = "/AUTH_"; | |
602 | tenant_path.append(g_conf->rgw_swift_tenant_name); | |
603 | } else if (g_conf->rgw_swift_account_in_url) { | |
604 | tenant_path = "/AUTH_"; | |
605 | tenant_path.append(info.user_id.to_str()); | |
606 | } | |
607 | ||
608 | dump_header(s, "X-Storage-Url", swift_url + swift_prefix + "/v1" + | |
609 | tenant_path); | |
610 | ||
611 | using rgw::auth::swift::encode_token; | |
612 | if ((ret = encode_token(s->cct, swift_key->id, swift_key->key, bl)) < 0) | |
613 | goto done; | |
614 | ||
615 | { | |
616 | static constexpr size_t PREFIX_LEN = sizeof("AUTH_rgwtk") - 1; | |
617 | char token_val[PREFIX_LEN + bl.length() * 2 + 1]; | |
618 | ||
619 | snprintf(token_val, PREFIX_LEN + 1, "AUTH_rgwtk"); | |
620 | buf_to_hex((const unsigned char *)bl.c_str(), bl.length(), | |
621 | token_val + PREFIX_LEN); | |
622 | ||
623 | dump_header(s, "X-Storage-Token", token_val); | |
624 | dump_header(s, "X-Auth-Token", token_val); | |
625 | } | |
626 | ||
627 | ret = STATUS_NO_CONTENT; | |
628 | ||
629 | done: | |
630 | set_req_state_err(s, ret); | |
631 | dump_errno(s); | |
632 | end_header(s); | |
633 | } | |
634 | ||
635 | int RGWHandler_SWIFT_Auth::init(RGWRados *store, struct req_state *state, | |
636 | rgw::io::BasicClient *cio) | |
637 | { | |
638 | state->dialect = "swift-auth"; | |
639 | state->formatter = new JSONFormatter; | |
640 | state->format = RGW_FORMAT_JSON; | |
641 | ||
642 | return RGWHandler::init(store, state, cio); | |
643 | } | |
644 | ||
645 | int RGWHandler_SWIFT_Auth::authorize() | |
646 | { | |
647 | return 0; | |
648 | } | |
649 | ||
650 | RGWOp *RGWHandler_SWIFT_Auth::op_get() | |
651 | { | |
652 | return new RGW_SWIFT_Auth_Get; | |
653 | } | |
654 |