libzypp  17.31.0
MediaCurl.cc
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8 \---------------------------------------------------------------------*/
13 #include <iostream>
14 #include <list>
15 
16 #include <zypp/base/Logger.h>
17 #include <zypp/ExternalProgram.h>
18 #include <zypp/base/String.h>
19 #include <zypp/base/Gettext.h>
20 #include <zypp-core/parser/Sysconfig>
21 #include <zypp/base/Gettext.h>
22 
23 #include <zypp/media/MediaCurl.h>
24 #include <zypp-curl/ProxyInfo>
25 #include <zypp-curl/auth/CurlAuthData>
26 #include <zypp-media/auth/CredentialManager>
27 #include <zypp-curl/CurlConfig>
28 #include <zypp-curl/private/curlhelper_p.h>
29 #include <zypp/Target.h>
30 #include <zypp/ZYppFactory.h>
31 #include <zypp/ZConfig.h>
32 
33 #include <cstdlib>
34 #include <sys/types.h>
35 #include <sys/stat.h>
36 #include <sys/mount.h>
37 #include <errno.h>
38 #include <dirent.h>
39 #include <unistd.h>
40 
41 using std::endl;
42 
43 namespace internal {
44  using namespace zypp;
45  struct ProgressData
46  {
47  ProgressData( CURL *_curl, time_t _timeout = 0, const zypp::Url & _url = zypp::Url(),
48  zypp::ByteCount expectedFileSize_r = 0,
50 
51  CURL *curl;
53  time_t timeout;
54  bool reached;
58 
59  time_t _timeStart = 0;
60  time_t _timeLast = 0;
61  time_t _timeRcv = 0;
62  time_t _timeNow = 0;
63 
64  double _dnlTotal = 0.0;
65  double _dnlLast = 0.0;
66  double _dnlNow = 0.0;
67 
68  int _dnlPercent= 0;
69 
70  double _drateTotal= 0.0;
71  double _drateLast = 0.0;
72 
73  void updateStats( double dltotal = 0.0, double dlnow = 0.0 );
74 
75  int reportProgress() const;
76 
77 
78  // download rate of the last period (cca 1 sec)
79  double drate_period;
80  // bytes downloaded at the start of the last period
81  double dload_period;
82  // seconds from the start of the download
83  long secs;
84  // average download rate
85  double drate_avg;
86  // last time the progress was reported
87  time_t ltime;
88  // bytes downloaded at the moment the progress was last reported
89  double dload;
90  // bytes uploaded at the moment the progress was last reported
91  double uload;
92  };
93 
94 
95 
96  ProgressData::ProgressData(CURL *_curl, time_t _timeout, const Url &_url, ByteCount expectedFileSize_r, zypp::callback::SendReport< zypp::media::DownloadProgressReport> *_report)
97  : curl( _curl )
98  , url( _url )
99  , timeout( _timeout )
100  , reached( false )
101  , fileSizeExceeded ( false )
102  , report( _report )
103  , _expectedFileSize( expectedFileSize_r )
104  {}
105 
106  void ProgressData::updateStats(double dltotal, double dlnow)
107  {
108  time_t now = _timeNow = time(0);
109 
110  // If called without args (0.0), recompute based on the last values seen
111  if ( dltotal && dltotal != _dnlTotal )
112  _dnlTotal = dltotal;
113 
114  if ( dlnow && dlnow != _dnlNow )
115  {
116  _timeRcv = now;
117  _dnlNow = dlnow;
118  }
119 
120  // init or reset if time jumps back
121  if ( !_timeStart || _timeStart > now )
122  _timeStart = _timeLast = _timeRcv = now;
123 
124  // timeout condition
125  if ( timeout )
126  reached = ( (now - _timeRcv) > timeout );
127 
128  // check if the downloaded data is already bigger than what we expected
129  fileSizeExceeded = _expectedFileSize > 0 && _expectedFileSize < static_cast<ByteCount::SizeType>(_dnlNow);
130 
131  // percentage:
132  if ( _dnlTotal )
133  _dnlPercent = int(_dnlNow * 100 / _dnlTotal);
134 
135  // download rates:
136  _drateTotal = _dnlNow / std::max( int(now - _timeStart), 1 );
137 
138  if ( _timeLast < now )
139  {
140  _drateLast = (_dnlNow - _dnlLast) / int(now - _timeLast);
141  // start new period
142  _timeLast = now;
143  _dnlLast = _dnlNow;
144  }
145  else if ( _timeStart == _timeLast )
147  }
148 
150  {
151  if ( fileSizeExceeded )
152  return 1;
153  if ( reached )
154  return 1; // no-data timeout
155  if ( report && !(*report)->progress( _dnlPercent, url, _drateTotal, _drateLast ) )
156  return 1; // user requested abort
157  return 0;
158  }
159 
160  const char * anonymousIdHeader()
161  {
162  // we need to add the release and identifier to the
163  // agent string.
164  // The target could be not initialized, and then this information
165  // is guessed.
166  static const std::string _value(
168  "X-ZYpp-AnonymousId: %s",
169  Target::anonymousUniqueId( Pathname()/*guess root*/ ).c_str() ) )
170  );
171  return _value.c_str();
172  }
173 
175  {
176  // we need to add the release and identifier to the
177  // agent string.
178  // The target could be not initialized, and then this information
179  // is guessed.
180  static const std::string _value(
182  "X-ZYpp-DistributionFlavor: %s",
183  Target::distributionFlavor( Pathname()/*guess root*/ ).c_str() ) )
184  );
185  return _value.c_str();
186  }
187 
188  const char * agentString()
189  {
190  // we need to add the release and identifier to the
191  // agent string.
192  // The target could be not initialized, and then this information
193  // is guessed.
194  static const std::string _value(
195  str::form(
196  "ZYpp " LIBZYPP_VERSION_STRING " (curl %s) %s"
197  , curl_version_info(CURLVERSION_NOW)->version
198  , Target::targetDistribution( Pathname()/*guess root*/ ).c_str()
199  )
200  );
201  return _value.c_str();
202  }
203 }
204 
205 
206 using namespace internal;
207 using namespace zypp::base;
208 
209 namespace zypp {
210 
211  namespace media {
212 
213 Pathname MediaCurl::_cookieFile = "/var/lib/YaST2/cookies";
214 
215 // we use this define to unbloat code as this C setting option
216 // and catching exception is done frequently.
218 #define SET_OPTION(opt,val) do { \
219  ret = curl_easy_setopt ( _curl, opt, val ); \
220  if ( ret != 0) { \
221  ZYPP_THROW(MediaCurlSetOptException(_url, _curlError)); \
222  } \
223  } while ( false )
224 
225 #define SET_OPTION_OFFT(opt,val) SET_OPTION(opt,(curl_off_t)val)
226 #define SET_OPTION_LONG(opt,val) SET_OPTION(opt,(long)val)
227 #define SET_OPTION_VOID(opt,val) SET_OPTION(opt,(void*)val)
228 
229 MediaCurl::MediaCurl( const Url & url_r,
230  const Pathname & attach_point_hint_r )
231  : MediaNetworkCommonHandler( url_r, attach_point_hint_r,
232  "/", // urlpath at attachpoint
233  true ), // does_download
234  _curl( NULL ),
235  _customHeaders(0L)
236 {
237  _curlError[0] = '\0';
238  _curlDebug = 0L;
239 
240  MIL << "MediaCurl::MediaCurl(" << url_r << ", " << attach_point_hint_r << ")" << endl;
241 
242  globalInitCurlOnce();
243 
244  if( !attachPoint().empty())
245  {
246  PathInfo ainfo(attachPoint());
247  Pathname apath(attachPoint() + "XXXXXX");
248  char *atemp = ::strdup( apath.asString().c_str());
249  char *atest = NULL;
250  if( !ainfo.isDir() || !ainfo.userMayRWX() ||
251  atemp == NULL || (atest=::mkdtemp(atemp)) == NULL)
252  {
253  WAR << "attach point " << ainfo.path()
254  << " is not useable for " << url_r.getScheme() << endl;
255  setAttachPoint("", true);
256  }
257  else if( atest != NULL)
258  ::rmdir(atest);
259 
260  if( atemp != NULL)
261  ::free(atemp);
262  }
263 }
264 
266 {
267  return internal::clearQueryString(url);
268 }
269 
270 void MediaCurl::setCookieFile( const Pathname &fileName )
271 {
272  _cookieFile = fileName;
273 }
274 
276 
277 void MediaCurl::checkProtocol(const Url &url) const
278 {
279  curl_version_info_data *curl_info = NULL;
280  curl_info = curl_version_info(CURLVERSION_NOW);
281  // curl_info does not need any free (is static)
282  if (curl_info->protocols)
283  {
284  const char * const *proto;
285  std::string scheme( url.getScheme());
286  bool found = false;
287  for(proto=curl_info->protocols; !found && *proto; ++proto)
288  {
289  if( scheme == std::string((const char *)*proto))
290  found = true;
291  }
292  if( !found)
293  {
294  std::string msg("Unsupported protocol '");
295  msg += scheme;
296  msg += "'";
297  ZYPP_THROW(MediaBadUrlException(_url, msg));
298  }
299  }
300 }
301 
303 {
304  {
305  _curlDebug = env::ZYPP_MEDIA_CURL_DEBUG();
306  if( _curlDebug > 0)
307  {
308  curl_easy_setopt( _curl, CURLOPT_VERBOSE, 1L);
309  curl_easy_setopt( _curl, CURLOPT_DEBUGFUNCTION, log_curl);
310  curl_easy_setopt( _curl, CURLOPT_DEBUGDATA, &_curlDebug);
311  }
312  }
313 
314  curl_easy_setopt(_curl, CURLOPT_HEADERFUNCTION, log_redirects_curl);
315  curl_easy_setopt(_curl, CURLOPT_HEADERDATA, &_lastRedirect);
316  CURLcode ret = curl_easy_setopt( _curl, CURLOPT_ERRORBUFFER, _curlError );
317  if ( ret != 0 ) {
318  ZYPP_THROW(MediaCurlSetOptException(_url, "Error setting error buffer"));
319  }
320 
321  SET_OPTION(CURLOPT_FAILONERROR, 1L);
322  SET_OPTION(CURLOPT_NOSIGNAL, 1L);
323 
324  // create non persistant settings
325  // so that we don't add headers twice
326  TransferSettings vol_settings(_settings);
327 
328  // add custom headers for download.opensuse.org (bsc#955801)
329  if ( _url.getHost() == "download.opensuse.org" )
330  {
331  vol_settings.addHeader(anonymousIdHeader());
332  vol_settings.addHeader(distributionFlavorHeader());
333  }
334  vol_settings.addHeader("Pragma:");
335 
336  _settings.setTimeout(ZConfig::instance().download_transfer_timeout());
337  _settings.setConnectTimeout(CONNECT_TIMEOUT);
338 
339  _settings.setUserAgentString(agentString());
340 
341  // fill some settings from url query parameters
342  try
343  {
344  fillSettingsFromUrl(_url, _settings);
345  }
346  catch ( const MediaException &e )
347  {
348  disconnectFrom();
349  ZYPP_RETHROW(e);
350  }
351  // if the proxy was not set (or explicitly unset) by url, then look...
352  if ( _settings.proxy().empty() )
353  {
354  // ...at the system proxy settings
355  fillSettingsSystemProxy(_url, _settings);
356  }
357 
359  switch ( env::ZYPP_MEDIA_CURL_IPRESOLVE() )
360  {
361  case 4: SET_OPTION(CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4); break;
362  case 6: SET_OPTION(CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V6); break;
363  }
364 
368  SET_OPTION(CURLOPT_CONNECTTIMEOUT, _settings.connectTimeout());
369  // If a transfer timeout is set, also set CURLOPT_TIMEOUT to an upper limit
370  // just in case curl does not trigger its progress callback frequently
371  // enough.
372  if ( _settings.timeout() )
373  {
374  SET_OPTION(CURLOPT_TIMEOUT, 3600L);
375  }
376 
377  // follow any Location: header that the server sends as part of
378  // an HTTP header (#113275)
379  SET_OPTION(CURLOPT_FOLLOWLOCATION, 1L);
380  // 3 redirects seem to be too few in some cases (bnc #465532)
381  SET_OPTION(CURLOPT_MAXREDIRS, 6L);
382 
383  if ( _url.getScheme() == "https" )
384  {
385 #if CURLVERSION_AT_LEAST(7,19,4)
386  // restrict following of redirections from https to https only
387  if ( _url.getHost() == "download.opensuse.org" )
388  SET_OPTION( CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS );
389  else
390  SET_OPTION( CURLOPT_REDIR_PROTOCOLS, CURLPROTO_HTTPS );
391 #endif
392 
393  if( _settings.verifyPeerEnabled() ||
394  _settings.verifyHostEnabled() )
395  {
396  SET_OPTION(CURLOPT_CAPATH, _settings.certificateAuthoritiesPath().c_str());
397  }
398 
399  if( ! _settings.clientCertificatePath().empty() )
400  {
401  SET_OPTION(CURLOPT_SSLCERT, _settings.clientCertificatePath().c_str());
402  }
403  if( ! _settings.clientKeyPath().empty() )
404  {
405  SET_OPTION(CURLOPT_SSLKEY, _settings.clientKeyPath().c_str());
406  }
407 
408 #ifdef CURLSSLOPT_ALLOW_BEAST
409  // see bnc#779177
410  ret = curl_easy_setopt( _curl, CURLOPT_SSL_OPTIONS, CURLSSLOPT_ALLOW_BEAST );
411  if ( ret != 0 ) {
412  disconnectFrom();
413  ZYPP_THROW(MediaCurlSetOptException(_url, _curlError));
414  }
415 #endif
416  SET_OPTION(CURLOPT_SSL_VERIFYPEER, _settings.verifyPeerEnabled() ? 1L : 0L);
417  SET_OPTION(CURLOPT_SSL_VERIFYHOST, _settings.verifyHostEnabled() ? 2L : 0L);
418  // bnc#903405 - POODLE: libzypp should only talk TLS
419  SET_OPTION(CURLOPT_SSLVERSION, CURL_SSLVERSION_TLSv1);
420  }
421 
422  SET_OPTION(CURLOPT_USERAGENT, _settings.userAgentString().c_str() );
423 
424  /* Fixes bsc#1174011 "auth=basic ignored in some cases"
425  * We should proactively add the password to the request if basic auth is configured
426  * and a password is available in the credentials but not in the URL.
427  *
428  * We will be a bit paranoid here and require that the URL has a user embedded, otherwise we go the default route
429  * and ask the server first about the auth method
430  */
431  if ( _settings.authType() == "basic"
432  && _settings.username().size()
433  && !_settings.password().size() ) {
434 
435  CredentialManager cm(CredManagerOptions(ZConfig::instance().repoManagerRoot()));
436  const auto cred = cm.getCred( _url );
437  if ( cred && cred->valid() ) {
438  if ( !_settings.username().size() )
439  _settings.setUsername(cred->username());
440  _settings.setPassword(cred->password());
441  }
442  }
443 
444  /*---------------------------------------------------------------*
445  CURLOPT_USERPWD: [user name]:[password]
446 
447  Url::username/password -> CURLOPT_USERPWD
448  If not provided, anonymous FTP identification
449  *---------------------------------------------------------------*/
450 
451  if ( _settings.userPassword().size() )
452  {
453  SET_OPTION(CURLOPT_USERPWD, _settings.userPassword().c_str());
454  std::string use_auth = _settings.authType();
455  if (use_auth.empty())
456  use_auth = "digest,basic"; // our default
457  long auth = CurlAuthData::auth_type_str2long(use_auth);
458  if( auth != CURLAUTH_NONE)
459  {
460  DBG << "Enabling HTTP authentication methods: " << use_auth
461  << " (CURLOPT_HTTPAUTH=" << auth << ")" << std::endl;
462  SET_OPTION(CURLOPT_HTTPAUTH, auth);
463  }
464  }
465 
466  if ( _settings.proxyEnabled() && ! _settings.proxy().empty() )
467  {
468  DBG << "Proxy: '" << _settings.proxy() << "'" << endl;
469  SET_OPTION(CURLOPT_PROXY, _settings.proxy().c_str());
470  SET_OPTION(CURLOPT_PROXYAUTH, CURLAUTH_BASIC|CURLAUTH_DIGEST|CURLAUTH_NTLM );
471  /*---------------------------------------------------------------*
472  * CURLOPT_PROXYUSERPWD: [user name]:[password]
473  *
474  * Url::option(proxyuser and proxypassword) -> CURLOPT_PROXYUSERPWD
475  * If not provided, $HOME/.curlrc is evaluated
476  *---------------------------------------------------------------*/
477 
478  std::string proxyuserpwd = _settings.proxyUserPassword();
479 
480  if ( proxyuserpwd.empty() )
481  {
482  CurlConfig curlconf;
483  CurlConfig::parseConfig(curlconf); // parse ~/.curlrc
484  if ( curlconf.proxyuserpwd.empty() )
485  DBG << "Proxy: ~/.curlrc does not contain the proxy-user option" << endl;
486  else
487  {
488  proxyuserpwd = curlconf.proxyuserpwd;
489  DBG << "Proxy: using proxy-user from ~/.curlrc" << endl;
490  }
491  }
492  else
493  {
494  DBG << "Proxy: using provided proxy-user '" << _settings.proxyUsername() << "'" << endl;
495  }
496 
497  if ( ! proxyuserpwd.empty() )
498  {
499  SET_OPTION(CURLOPT_PROXYUSERPWD, curlUnEscape( proxyuserpwd ).c_str());
500  }
501  }
502 #if CURLVERSION_AT_LEAST(7,19,4)
503  else if ( _settings.proxy() == EXPLICITLY_NO_PROXY )
504  {
505  // Explicitly disabled in URL (see fillSettingsFromUrl()).
506  // This should also prevent libcurl from looking into the environment.
507  DBG << "Proxy: explicitly NOPROXY" << endl;
508  SET_OPTION(CURLOPT_NOPROXY, "*");
509  }
510 #endif
511  else
512  {
513  DBG << "Proxy: not explicitly set" << endl;
514  DBG << "Proxy: libcurl may look into the environment" << endl;
515  }
516 
518  if ( _settings.minDownloadSpeed() != 0 )
519  {
520  SET_OPTION(CURLOPT_LOW_SPEED_LIMIT, _settings.minDownloadSpeed());
521  // default to 10 seconds at low speed
522  SET_OPTION(CURLOPT_LOW_SPEED_TIME, 60L);
523  }
524 
525 #if CURLVERSION_AT_LEAST(7,15,5)
526  if ( _settings.maxDownloadSpeed() != 0 )
527  SET_OPTION_OFFT(CURLOPT_MAX_RECV_SPEED_LARGE, _settings.maxDownloadSpeed());
528 #endif
529 
530  /*---------------------------------------------------------------*
531  *---------------------------------------------------------------*/
532 
535  if ( str::strToBool( _url.getQueryParam( "cookies" ), true ) )
536  SET_OPTION(CURLOPT_COOKIEFILE, _currentCookieFile.c_str() );
537  else
538  MIL << "No cookies requested" << endl;
539  SET_OPTION(CURLOPT_COOKIEJAR, _currentCookieFile.c_str() );
540  SET_OPTION(CURLOPT_PROGRESSFUNCTION, &progressCallback );
541  SET_OPTION(CURLOPT_NOPROGRESS, 0L);
542 
543 #if CURLVERSION_AT_LEAST(7,18,0)
544  // bnc #306272
545  SET_OPTION(CURLOPT_PROXY_TRANSFER_MODE, 1L );
546 #endif
547  // append settings custom headers to curl
548  for ( const auto &header : vol_settings.headers() )
549  {
550  // MIL << "HEADER " << *it << std::endl;
551 
552  _customHeaders = curl_slist_append(_customHeaders, header.c_str());
553  if ( !_customHeaders )
554  ZYPP_THROW(MediaCurlInitException(_url));
555  }
556 
557  SET_OPTION(CURLOPT_HTTPHEADER, _customHeaders);
558 }
559 
561 
562 
563 void MediaCurl::attachTo (bool next)
564 {
565  if ( next )
566  ZYPP_THROW(MediaNotSupportedException(_url));
567 
568  if ( !_url.isValid() )
569  ZYPP_THROW(MediaBadUrlException(_url));
570 
573  {
575  }
576 
577  disconnectFrom(); // clean _curl if needed
578  _curl = curl_easy_init();
579  if ( !_curl ) {
580  ZYPP_THROW(MediaCurlInitException(_url));
581  }
582  try
583  {
584  setupEasy();
585  }
586  catch (Exception & ex)
587  {
588  disconnectFrom();
589  ZYPP_RETHROW(ex);
590  }
591 
592  // FIXME: need a derived class to propelly compare url's
594  setMediaSource(media);
595 }
596 
597 bool
599 {
600  return MediaHandler::checkAttachPoint( apoint, true, true);
601 }
602 
604 
606 {
607  if ( _customHeaders )
608  {
609  curl_slist_free_all(_customHeaders);
610  _customHeaders = 0L;
611  }
612 
613  if ( _curl )
614  {
615  // bsc#1201092: Strange but within global_dtors we may exceptions here.
616  try { curl_easy_cleanup( _curl ); }
617  catch (...) { ; }
618  _curl = NULL;
619  }
620 }
621 
623 
624 void MediaCurl::releaseFrom( const std::string & ejectDev )
625 {
626  disconnect();
627 }
628 
629 Url MediaCurl::getFileUrl( const Pathname & filename_r ) const
630 {
631  // Simply extend the URLs pathname. An 'absolute' URL path
632  // is achieved by encoding the leading '/' in an URL path:
633  // URL: ftp://user@server -> ~user
634  // URL: ftp://user@server/ -> ~user
635  // URL: ftp://user@server// -> ~user
636  // URL: ftp://user@server/%2F -> /
637  // ^- this '/' is just a separator
638  Url newurl( _url );
639  newurl.setPathName( ( Pathname("./"+_url.getPathName()) / filename_r ).asString().substr(1) );
640  return newurl;
641 }
642 
644 
645 void MediaCurl::getFile( const OnMediaLocation &file ) const
646 {
647  // Use absolute file name to prevent access of files outside of the
648  // hierarchy below the attach point.
649  getFileCopy( file, localPath(file.filename()).absolutename() );
650 }
651 
653 
654 void MediaCurl::getFileCopy( const OnMediaLocation & srcFile , const Pathname & target ) const
655 {
656 
657  const auto &filename = srcFile.filename();
658 
660 
661  Url fileurl(getFileUrl(filename));
662 
663  bool retry = false;
664 
665  do
666  {
667  try
668  {
669  doGetFileCopy( srcFile, target, report );
670  retry = false;
671  }
672  // retry with proper authentication data
673  catch (MediaUnauthorizedException & ex_r)
674  {
675  if(authenticate(ex_r.hint(), !retry))
676  retry = true;
677  else
678  {
679  report->finish(fileurl, zypp::media::DownloadProgressReport::ACCESS_DENIED, ex_r.asUserHistory());
680  ZYPP_RETHROW(ex_r);
681  }
682  }
683  // unexpected exception
684  catch (MediaException & excpt_r)
685  {
687  if( typeid(excpt_r) == typeid( media::MediaFileNotFoundException ) ||
688  typeid(excpt_r) == typeid( media::MediaNotAFileException ) )
689  {
691  }
692  report->finish(fileurl, reason, excpt_r.asUserHistory());
693  ZYPP_RETHROW(excpt_r);
694  }
695  }
696  while (retry);
697 
698  report->finish(fileurl, zypp::media::DownloadProgressReport::NO_ERROR, "");
699 }
700 
702 
703 bool MediaCurl::getDoesFileExist( const Pathname & filename ) const
704 {
705  bool retry = false;
706 
707  do
708  {
709  try
710  {
711  return doGetDoesFileExist( filename );
712  }
713  // authentication problem, retry with proper authentication data
714  catch (MediaUnauthorizedException & ex_r)
715  {
716  if(authenticate(ex_r.hint(), !retry))
717  retry = true;
718  else
719  ZYPP_RETHROW(ex_r);
720  }
721  // unexpected exception
722  catch (MediaException & excpt_r)
723  {
724  ZYPP_RETHROW(excpt_r);
725  }
726  }
727  while (retry);
728 
729  return false;
730 }
731 
733 
735  CURLcode code,
736  bool timeout_reached) const
737 {
738  if ( code != 0 )
739  {
740  Url url;
741  if (filename.empty())
742  url = _url;
743  else
744  url = getFileUrl(filename);
745 
746  std::string err;
747  {
748  switch ( code )
749  {
750  case CURLE_UNSUPPORTED_PROTOCOL:
751  err = " Unsupported protocol";
752  if ( !_lastRedirect.empty() )
753  {
754  err += " or redirect (";
755  err += _lastRedirect;
756  err += ")";
757  }
758  break;
759  case CURLE_URL_MALFORMAT:
760  case CURLE_URL_MALFORMAT_USER:
761  err = " Bad URL";
762  break;
763  case CURLE_LOGIN_DENIED:
764  ZYPP_THROW(
765  MediaUnauthorizedException(url, "Login failed.", _curlError, ""));
766  break;
767  case CURLE_HTTP_RETURNED_ERROR:
768  {
769  long httpReturnCode = 0;
770  CURLcode infoRet = curl_easy_getinfo( _curl,
771  CURLINFO_RESPONSE_CODE,
772  &httpReturnCode );
773  if ( infoRet == CURLE_OK )
774  {
775  std::string msg = "HTTP response: " + str::numstring( httpReturnCode );
776  switch ( httpReturnCode )
777  {
778  case 401:
779  {
780  std::string auth_hint = getAuthHint();
781 
782  DBG << msg << " Login failed (URL: " << url.asString() << ")" << std::endl;
783  DBG << "MediaUnauthorizedException auth hint: '" << auth_hint << "'" << std::endl;
784 
785  ZYPP_THROW(MediaUnauthorizedException(
786  url, "Login failed.", _curlError, auth_hint
787  ));
788  }
789 
790  case 502: // bad gateway (bnc #1070851)
791  case 503: // service temporarily unavailable (bnc #462545)
792  ZYPP_THROW(MediaTemporaryProblemException(url));
793  case 504: // gateway timeout
794  ZYPP_THROW(MediaTimeoutException(url));
795  case 403:
796  {
797  std::string msg403;
798  if ( url.getHost().find(".suse.com") != std::string::npos )
799  msg403 = _("Visit the SUSE Customer Center to check whether your registration is valid and has not expired.");
800  else if (url.asString().find("novell.com") != std::string::npos)
801  msg403 = _("Visit the Novell Customer Center to check whether your registration is valid and has not expired.");
802  ZYPP_THROW(MediaForbiddenException(url, msg403));
803  }
804  case 404:
805  case 410:
806  ZYPP_THROW(MediaFileNotFoundException(_url, filename));
807  }
808 
809  DBG << msg << " (URL: " << url.asString() << ")" << std::endl;
810  ZYPP_THROW(MediaCurlException(url, msg, _curlError));
811  }
812  else
813  {
814  std::string msg = "Unable to retrieve HTTP response:";
815  DBG << msg << " (URL: " << url.asString() << ")" << std::endl;
816  ZYPP_THROW(MediaCurlException(url, msg, _curlError));
817  }
818  }
819  break;
820  case CURLE_FTP_COULDNT_RETR_FILE:
821 #if CURLVERSION_AT_LEAST(7,16,0)
822  case CURLE_REMOTE_FILE_NOT_FOUND:
823 #endif
824  case CURLE_FTP_ACCESS_DENIED:
825  case CURLE_TFTP_NOTFOUND:
826  err = "File not found";
827  ZYPP_THROW(MediaFileNotFoundException(_url, filename));
828  break;
829  case CURLE_BAD_PASSWORD_ENTERED:
830  case CURLE_FTP_USER_PASSWORD_INCORRECT:
831  err = "Login failed";
832  break;
833  case CURLE_COULDNT_RESOLVE_PROXY:
834  case CURLE_COULDNT_RESOLVE_HOST:
835  case CURLE_COULDNT_CONNECT:
836  case CURLE_FTP_CANT_GET_HOST:
837  err = "Connection failed";
838  break;
839  case CURLE_WRITE_ERROR:
840  err = "Write error";
841  break;
842  case CURLE_PARTIAL_FILE:
843  case CURLE_OPERATION_TIMEDOUT:
844  timeout_reached = true; // fall though to TimeoutException
845  // fall though...
846  case CURLE_ABORTED_BY_CALLBACK:
847  if( timeout_reached )
848  {
849  err = "Timeout reached";
850  ZYPP_THROW(MediaTimeoutException(url));
851  }
852  else
853  {
854  err = "User abort";
855  }
856  break;
857  case CURLE_SSL_PEER_CERTIFICATE:
858  default:
859  err = "Curl error " + str::numstring( code );
860  break;
861  }
862 
863  // uhm, no 0 code but unknown curl exception
864  ZYPP_THROW(MediaCurlException(url, err, _curlError));
865  }
866  }
867  else
868  {
869  // actually the code is 0, nothing happened
870  }
871 }
872 
874 
875 bool MediaCurl::doGetDoesFileExist( const Pathname & filename ) const
876 {
877  DBG << filename.asString() << endl;
878 
879  if(!_url.isValid())
880  ZYPP_THROW(MediaBadUrlException(_url));
881 
882  if(_url.getHost().empty())
883  ZYPP_THROW(MediaBadUrlEmptyHostException(_url));
884 
885  Url url(getFileUrl(filename));
886 
887  DBG << "URL: " << url.asString() << endl;
888  // Use URL without options and without username and passwd
889  // (some proxies dislike them in the URL).
890  // Curl seems to need the just scheme, hostname and a path;
891  // the rest was already passed as curl options (in attachTo).
892  Url curlUrl( clearQueryString(url) );
893 
894  //
895  // See also Bug #154197 and ftp url definition in RFC 1738:
896  // The url "ftp://user@host/foo/bar/file" contains a path,
897  // that is relative to the user's home.
898  // The url "ftp://user@host//foo/bar/file" (or also with
899  // encoded slash as %2f) "ftp://user@host/%2ffoo/bar/file"
900  // contains an absolute path.
901  //
902  _lastRedirect.clear();
903  std::string urlBuffer( curlUrl.asString());
904  CURLcode ret = curl_easy_setopt( _curl, CURLOPT_URL,
905  urlBuffer.c_str() );
906  if ( ret != 0 ) {
907  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
908  }
909 
910  // instead of returning no data with NOBODY, we return
911  // little data, that works with broken servers, and
912  // works for ftp as well, because retrieving only headers
913  // ftp will return always OK code ?
914  // See http://curl.haxx.se/docs/knownbugs.html #58
915  if ( (_url.getScheme() == "http" || _url.getScheme() == "https") &&
916  _settings.headRequestsAllowed() )
917  ret = curl_easy_setopt( _curl, CURLOPT_NOBODY, 1L );
918  else
919  ret = curl_easy_setopt( _curl, CURLOPT_RANGE, "0-1" );
920 
921  if ( ret != 0 ) {
922  curl_easy_setopt( _curl, CURLOPT_NOBODY, 0L);
923  curl_easy_setopt( _curl, CURLOPT_RANGE, NULL );
924  /* yes, this is why we never got to get NOBODY working before,
925  because setting it changes this option too, and we also
926  need to reset it
927  See: http://curl.haxx.se/mail/archive-2005-07/0073.html
928  */
929  curl_easy_setopt( _curl, CURLOPT_HTTPGET, 1L );
930  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
931  }
932 
933  AutoFILE file { ::fopen( "/dev/null", "w" ) };
934  if ( !file ) {
935  ERR << "fopen failed for /dev/null" << endl;
936  curl_easy_setopt( _curl, CURLOPT_NOBODY, 0L);
937  curl_easy_setopt( _curl, CURLOPT_RANGE, NULL );
938  /* yes, this is why we never got to get NOBODY working before,
939  because setting it changes this option too, and we also
940  need to reset it
941  See: http://curl.haxx.se/mail/archive-2005-07/0073.html
942  */
943  curl_easy_setopt( _curl, CURLOPT_HTTPGET, 1L );
944  if ( ret != 0 ) {
945  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
946  }
947  ZYPP_THROW(MediaWriteException("/dev/null"));
948  }
949 
950  ret = curl_easy_setopt( _curl, CURLOPT_WRITEDATA, (*file) );
951  if ( ret != 0 ) {
952  std::string err( _curlError);
953  curl_easy_setopt( _curl, CURLOPT_RANGE, NULL );
954  curl_easy_setopt( _curl, CURLOPT_NOBODY, 0L);
955  /* yes, this is why we never got to get NOBODY working before,
956  because setting it changes this option too, and we also
957  need to reset it
958  See: http://curl.haxx.se/mail/archive-2005-07/0073.html
959  */
960  curl_easy_setopt( _curl, CURLOPT_HTTPGET, 1L );
961  if ( ret != 0 ) {
962  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
963  }
964  ZYPP_THROW(MediaCurlSetOptException(url, err));
965  }
966 
967  CURLcode ok = curl_easy_perform( _curl );
968  MIL << "perform code: " << ok << " [ " << curl_easy_strerror(ok) << " ]" << endl;
969 
970  // reset curl settings
971  if ( _url.getScheme() == "http" || _url.getScheme() == "https" )
972  {
973  curl_easy_setopt( _curl, CURLOPT_NOBODY, 0L);
974  if ( ret != 0 ) {
975  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
976  }
977 
978  /* yes, this is why we never got to get NOBODY working before,
979  because setting it changes this option too, and we also
980  need to reset it
981  See: http://curl.haxx.se/mail/archive-2005-07/0073.html
982  */
983  curl_easy_setopt( _curl, CURLOPT_HTTPGET, 1L);
984  if ( ret != 0 ) {
985  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
986  }
987 
988  }
989  else
990  {
991  // for FTP we set different options
992  curl_easy_setopt( _curl, CURLOPT_RANGE, NULL);
993  if ( ret != 0 ) {
994  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
995  }
996  }
997 
998  // as we are not having user interaction, the user can't cancel
999  // the file existence checking, a callback or timeout return code
1000  // will be always a timeout.
1001  try {
1002  evaluateCurlCode( filename, ok, true /* timeout */);
1003  }
1004  catch ( const MediaFileNotFoundException &e ) {
1005  // if the file did not exist then we can return false
1006  return false;
1007  }
1008  catch ( const MediaException &e ) {
1009  // some error, we are not sure about file existence, rethrw
1010  ZYPP_RETHROW(e);
1011  }
1012  // exists
1013  return ( ok == CURLE_OK );
1014 }
1015 
1017 
1018 
1019 #if DETECT_DIR_INDEX
1020 bool MediaCurl::detectDirIndex() const
1021 {
1022  if(_url.getScheme() != "http" && _url.getScheme() != "https")
1023  return false;
1024  //
1025  // try to check the effective url and set the not_a_file flag
1026  // if the url path ends with a "/", what usually means, that
1027  // we've received a directory index (index.html content).
1028  //
1029  // Note: This may be dangerous and break file retrieving in
1030  // case of some server redirections ... ?
1031  //
1032  bool not_a_file = false;
1033  char *ptr = NULL;
1034  CURLcode ret = curl_easy_getinfo( _curl,
1035  CURLINFO_EFFECTIVE_URL,
1036  &ptr);
1037  if ( ret == CURLE_OK && ptr != NULL)
1038  {
1039  try
1040  {
1041  Url eurl( ptr);
1042  std::string path( eurl.getPathName());
1043  if( !path.empty() && path != "/" && *path.rbegin() == '/')
1044  {
1045  DBG << "Effective url ("
1046  << eurl
1047  << ") seems to provide the index of a directory"
1048  << endl;
1049  not_a_file = true;
1050  }
1051  }
1052  catch( ... )
1053  {}
1054  }
1055  return not_a_file;
1056 }
1057 #endif
1058 
1060 
1061 void MediaCurl::doGetFileCopy( const OnMediaLocation &srcFile , const Pathname & target, callback::SendReport<DownloadProgressReport> & report, RequestOptions options ) const
1062 {
1063  Pathname dest = target.absolutename();
1064  if( assert_dir( dest.dirname() ) )
1065  {
1066  DBG << "assert_dir " << dest.dirname() << " failed" << endl;
1067  ZYPP_THROW( MediaSystemException(getFileUrl(srcFile.filename()), "System error on " + dest.dirname().asString()) );
1068  }
1069 
1070  ManagedFile destNew { target.extend( ".new.zypp.XXXXXX" ) };
1071  AutoFILE file;
1072  {
1073  AutoFREE<char> buf { ::strdup( (*destNew).c_str() ) };
1074  if( ! buf )
1075  {
1076  ERR << "out of memory for temp file name" << endl;
1077  ZYPP_THROW(MediaSystemException(getFileUrl(srcFile.filename()), "out of memory for temp file name"));
1078  }
1079 
1080  AutoFD tmp_fd { ::mkostemp( buf, O_CLOEXEC ) };
1081  if( tmp_fd == -1 )
1082  {
1083  ERR << "mkstemp failed for file '" << destNew << "'" << endl;
1084  ZYPP_THROW(MediaWriteException(destNew));
1085  }
1086  destNew = ManagedFile( (*buf), filesystem::unlink );
1087 
1088  file = ::fdopen( tmp_fd, "we" );
1089  if ( ! file )
1090  {
1091  ERR << "fopen failed for file '" << destNew << "'" << endl;
1092  ZYPP_THROW(MediaWriteException(destNew));
1093  }
1094  tmp_fd.resetDispose(); // don't close it here! ::fdopen moved ownership to file
1095  }
1096 
1097  DBG << "dest: " << dest << endl;
1098  DBG << "temp: " << destNew << endl;
1099 
1100  // set IFMODSINCE time condition (no download if not modified)
1101  if( PathInfo(target).isExist() && !(options & OPTION_NO_IFMODSINCE) )
1102  {
1103  curl_easy_setopt(_curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_IFMODSINCE);
1104  curl_easy_setopt(_curl, CURLOPT_TIMEVALUE, (long)PathInfo(target).mtime());
1105  }
1106  else
1107  {
1108  curl_easy_setopt(_curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_NONE);
1109  curl_easy_setopt(_curl, CURLOPT_TIMEVALUE, 0L);
1110  }
1111  try
1112  {
1113  doGetFileCopyFile( srcFile, dest, file, report, options);
1114  }
1115  catch (Exception &e)
1116  {
1117  curl_easy_setopt(_curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_NONE);
1118  curl_easy_setopt(_curl, CURLOPT_TIMEVALUE, 0L);
1119  ZYPP_RETHROW(e);
1120  }
1121 
1122  long httpReturnCode = 0;
1123  CURLcode infoRet = curl_easy_getinfo(_curl,
1124  CURLINFO_RESPONSE_CODE,
1125  &httpReturnCode);
1126  bool modified = true;
1127  if (infoRet == CURLE_OK)
1128  {
1129  DBG << "HTTP response: " + str::numstring(httpReturnCode);
1130  if ( httpReturnCode == 304
1131  || ( httpReturnCode == 213 && (_url.getScheme() == "ftp" || _url.getScheme() == "tftp") ) ) // not modified
1132  {
1133  DBG << " Not modified.";
1134  modified = false;
1135  }
1136  DBG << endl;
1137  }
1138  else
1139  {
1140  WAR << "Could not get the response code." << endl;
1141  }
1142 
1143  if (modified || infoRet != CURLE_OK)
1144  {
1145  // apply umask
1146  if ( ::fchmod( ::fileno(file), filesystem::applyUmaskTo( 0644 ) ) )
1147  {
1148  ERR << "Failed to chmod file " << destNew << endl;
1149  }
1150 
1151  file.resetDispose(); // we're going to close it manually here
1152  if ( ::fclose( file ) )
1153  {
1154  ERR << "Fclose failed for file '" << destNew << "'" << endl;
1155  ZYPP_THROW(MediaWriteException(destNew));
1156  }
1157 
1158  // move the temp file into dest
1159  if ( rename( destNew, dest ) != 0 ) {
1160  ERR << "Rename failed" << endl;
1161  ZYPP_THROW(MediaWriteException(dest));
1162  }
1163  destNew.resetDispose(); // no more need to unlink it
1164  }
1165 
1166  DBG << "done: " << PathInfo(dest) << endl;
1167 }
1168 
1170 
1171 void MediaCurl::doGetFileCopyFile( const OnMediaLocation & srcFile, const Pathname & dest, FILE *file, callback::SendReport<DownloadProgressReport> & report, RequestOptions options ) const
1172 {
1173  DBG << srcFile.filename().asString() << endl;
1174 
1175  if(!_url.isValid())
1176  ZYPP_THROW(MediaBadUrlException(_url));
1177 
1178  if(_url.getHost().empty())
1179  ZYPP_THROW(MediaBadUrlEmptyHostException(_url));
1180 
1181  Url url(getFileUrl(srcFile.filename()));
1182 
1183  DBG << "URL: " << url.asString() << endl;
1184  // Use URL without options and without username and passwd
1185  // (some proxies dislike them in the URL).
1186  // Curl seems to need the just scheme, hostname and a path;
1187  // the rest was already passed as curl options (in attachTo).
1188  Url curlUrl( clearQueryString(url) );
1189 
1190  //
1191  // See also Bug #154197 and ftp url definition in RFC 1738:
1192  // The url "ftp://user@host/foo/bar/file" contains a path,
1193  // that is relative to the user's home.
1194  // The url "ftp://user@host//foo/bar/file" (or also with
1195  // encoded slash as %2f) "ftp://user@host/%2ffoo/bar/file"
1196  // contains an absolute path.
1197  //
1198  _lastRedirect.clear();
1199  std::string urlBuffer( curlUrl.asString());
1200  CURLcode ret = curl_easy_setopt( _curl, CURLOPT_URL,
1201  urlBuffer.c_str() );
1202  if ( ret != 0 ) {
1203  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
1204  }
1205 
1206  ret = curl_easy_setopt( _curl, CURLOPT_WRITEDATA, file );
1207  if ( ret != 0 ) {
1208  ZYPP_THROW(MediaCurlSetOptException(url, _curlError));
1209  }
1210 
1211  // Set callback and perform.
1212  internal::ProgressData progressData(_curl, _settings.timeout(), url, srcFile.downloadSize(), &report);
1213  if (!(options & OPTION_NO_REPORT_START))
1214  report->start(url, dest);
1215  if ( curl_easy_setopt( _curl, CURLOPT_PROGRESSDATA, &progressData ) != 0 ) {
1216  WAR << "Can't set CURLOPT_PROGRESSDATA: " << _curlError << endl;;
1217  }
1218 
1219  ret = curl_easy_perform( _curl );
1220 #if CURLVERSION_AT_LEAST(7,19,4)
1221  // bnc#692260: If the client sends a request with an If-Modified-Since header
1222  // with a future date for the server, the server may respond 200 sending a
1223  // zero size file.
1224  // curl-7.19.4 introduces CURLINFO_CONDITION_UNMET to check this condition.
1225  if ( ftell(file) == 0 && ret == 0 )
1226  {
1227  long httpReturnCode = 33;
1228  if ( curl_easy_getinfo( _curl, CURLINFO_RESPONSE_CODE, &httpReturnCode ) == CURLE_OK && httpReturnCode == 200 )
1229  {
1230  long conditionUnmet = 33;
1231  if ( curl_easy_getinfo( _curl, CURLINFO_CONDITION_UNMET, &conditionUnmet ) == CURLE_OK && conditionUnmet )
1232  {
1233  WAR << "TIMECONDITION unmet - retry without." << endl;
1234  curl_easy_setopt(_curl, CURLOPT_TIMECONDITION, CURL_TIMECOND_NONE);
1235  curl_easy_setopt(_curl, CURLOPT_TIMEVALUE, 0L);
1236  ret = curl_easy_perform( _curl );
1237  }
1238  }
1239  }
1240 #endif
1241 
1242  if ( curl_easy_setopt( _curl, CURLOPT_PROGRESSDATA, NULL ) != 0 ) {
1243  WAR << "Can't unset CURLOPT_PROGRESSDATA: " << _curlError << endl;;
1244  }
1245 
1246  if ( ret != 0 )
1247  {
1248  ERR << "curl error: " << ret << ": " << _curlError
1249  << ", temp file size " << ftell(file)
1250  << " bytes." << endl;
1251 
1252  // the timeout is determined by the progress data object
1253  // which holds whether the timeout was reached or not,
1254  // otherwise it would be a user cancel
1255  try {
1256 
1257  if ( progressData.fileSizeExceeded )
1258  ZYPP_THROW(MediaFileSizeExceededException(url, progressData._expectedFileSize));
1259 
1260  evaluateCurlCode( srcFile.filename(), ret, progressData.reached );
1261  }
1262  catch ( const MediaException &e ) {
1263  // some error, we are not sure about file existence, rethrw
1264  ZYPP_RETHROW(e);
1265  }
1266  }
1267 
1268 #if DETECT_DIR_INDEX
1269  if (!ret && detectDirIndex())
1270  {
1271  ZYPP_THROW(MediaNotAFileException(_url, filename));
1272  }
1273 #endif // DETECT_DIR_INDEX
1274 }
1275 
1277 
1278 void MediaCurl::getDir( const Pathname & dirname, bool recurse_r ) const
1279 {
1280  filesystem::DirContent content;
1281  getDirInfo( content, dirname, /*dots*/false );
1282 
1283  for ( filesystem::DirContent::const_iterator it = content.begin(); it != content.end(); ++it ) {
1284  Pathname filename = dirname + it->name;
1285  int res = 0;
1286 
1287  switch ( it->type ) {
1288  case filesystem::FT_NOT_AVAIL: // old directory.yast contains no typeinfo at all
1289  case filesystem::FT_FILE:
1290  getFile( OnMediaLocation( filename ) );
1291  break;
1292  case filesystem::FT_DIR: // newer directory.yast contain at least directory info
1293  if ( recurse_r ) {
1294  getDir( filename, recurse_r );
1295  } else {
1296  res = assert_dir( localPath( filename ) );
1297  if ( res ) {
1298  WAR << "Ignore error (" << res << ") on creating local directory '" << localPath( filename ) << "'" << endl;
1299  }
1300  }
1301  break;
1302  default:
1303  // don't provide devices, sockets, etc.
1304  break;
1305  }
1306  }
1307 }
1308 
1310 
1311 void MediaCurl::getDirInfo( std::list<std::string> & retlist,
1312  const Pathname & dirname, bool dots ) const
1313 {
1314  getDirectoryYast( retlist, dirname, dots );
1315 }
1316 
1318 
1320  const Pathname & dirname, bool dots ) const
1321 {
1322  getDirectoryYast( retlist, dirname, dots );
1323 }
1324 
1326 //
1327 int MediaCurl::aliveCallback( void *clientp, double /*dltotal*/, double dlnow, double /*ultotal*/, double /*ulnow*/ )
1328 {
1329  internal::ProgressData *pdata = reinterpret_cast<internal::ProgressData *>( clientp );
1330  if( pdata )
1331  {
1332  // Do not propagate dltotal in alive callbacks. MultiCurl uses this to
1333  // prevent a percentage raise while downloading a metalink file. Download
1334  // activity however is indicated by propagating the download rate (via dlnow).
1335  pdata->updateStats( 0.0, dlnow );
1336  return pdata->reportProgress();
1337  }
1338  return 0;
1339 }
1340 
1341 int MediaCurl::progressCallback( void *clientp, double dltotal, double dlnow, double ultotal, double ulnow )
1342 {
1343  internal::ProgressData *pdata = reinterpret_cast<internal::ProgressData *>( clientp );
1344  if( pdata )
1345  {
1346  // work around curl bug that gives us old data
1347  long httpReturnCode = 0;
1348  if ( curl_easy_getinfo( pdata->curl, CURLINFO_RESPONSE_CODE, &httpReturnCode ) != CURLE_OK || httpReturnCode == 0 )
1349  return aliveCallback( clientp, dltotal, dlnow, ultotal, ulnow );
1350 
1351  pdata->updateStats( dltotal, dlnow );
1352  return pdata->reportProgress();
1353  }
1354  return 0;
1355 }
1356 
1358 {
1359  internal::ProgressData *pdata = reinterpret_cast<internal::ProgressData *>(clientp);
1360  return pdata ? pdata->curl : 0;
1361 }
1362 
1364 
1365 std::string MediaCurl::getAuthHint() const
1366 {
1367  long auth_info = CURLAUTH_NONE;
1368 
1369  CURLcode infoRet =
1370  curl_easy_getinfo(_curl, CURLINFO_HTTPAUTH_AVAIL, &auth_info);
1371 
1372  if(infoRet == CURLE_OK)
1373  {
1374  return CurlAuthData::auth_type_long2str(auth_info);
1375  }
1376 
1377  return "";
1378 }
1379 
1384 void MediaCurl::resetExpectedFileSize(void *clientp, const ByteCount &expectedFileSize)
1385 {
1386  internal::ProgressData *data = reinterpret_cast<internal::ProgressData *>(clientp);
1387  if ( data ) {
1388  data->_expectedFileSize = expectedFileSize;
1389  }
1390 }
1391 
1393 
1394 bool MediaCurl::authenticate(const std::string & availAuthTypes, bool firstTry) const
1395 {
1397  CredentialManager cm(CredManagerOptions(ZConfig::instance().repoManagerRoot()));
1398  CurlAuthData_Ptr credentials;
1399 
1400  // get stored credentials
1401  AuthData_Ptr cmcred = cm.getCred(_url);
1402 
1403  if (cmcred && firstTry)
1404  {
1405  credentials.reset(new CurlAuthData(*cmcred));
1406  DBG << "got stored credentials:" << endl << *credentials << endl;
1407  }
1408  // if not found, ask user
1409  else
1410  {
1411 
1412  CurlAuthData_Ptr curlcred;
1413  curlcred.reset(new CurlAuthData());
1415 
1416  // preset the username if present in current url
1417  if (!_url.getUsername().empty() && firstTry)
1418  curlcred->setUsername(_url.getUsername());
1419  // if CM has found some credentials, preset the username from there
1420  else if (cmcred)
1421  curlcred->setUsername(cmcred->username());
1422 
1423  // indicate we have no good credentials from CM
1424  cmcred.reset();
1425 
1426  std::string prompt_msg = str::Format(_("Authentication required for '%s'")) % _url.asString();
1427 
1428  // set available authentication types from the exception
1429  // might be needed in prompt
1430  curlcred->setAuthType(availAuthTypes);
1431 
1432  // ask user
1433  if (auth_report->prompt(_url, prompt_msg, *curlcred))
1434  {
1435  DBG << "callback answer: retry" << endl
1436  << "CurlAuthData: " << *curlcred << endl;
1437 
1438  if (curlcred->valid())
1439  {
1440  credentials = curlcred;
1441  // if (credentials->username() != _url.getUsername())
1442  // _url.setUsername(credentials->username());
1450  }
1451  }
1452  else
1453  {
1454  DBG << "callback answer: cancel" << endl;
1455  }
1456  }
1457 
1458  // set username and password
1459  if (credentials)
1460  {
1461  // HACK, why is this const?
1462  const_cast<MediaCurl*>(this)->_settings.setUsername(credentials->username());
1463  const_cast<MediaCurl*>(this)->_settings.setPassword(credentials->password());
1464 
1465  // set username and password
1466  CURLcode ret = curl_easy_setopt(_curl, CURLOPT_USERPWD, _settings.userPassword().c_str());
1467  if ( ret != 0 ) ZYPP_THROW(MediaCurlSetOptException(_url, _curlError));
1468 
1469  // set available authentication types from the exception
1470  if (credentials->authType() == CURLAUTH_NONE)
1471  credentials->setAuthType(availAuthTypes);
1472 
1473  // set auth type (seems this must be set _after_ setting the userpwd)
1474  if (credentials->authType() != CURLAUTH_NONE)
1475  {
1476  // FIXME: only overwrite if not empty?
1477  const_cast<MediaCurl*>(this)->_settings.setAuthType(credentials->authTypeAsString());
1478  ret = curl_easy_setopt(_curl, CURLOPT_HTTPAUTH, credentials->authType());
1479  if ( ret != 0 ) ZYPP_THROW(MediaCurlSetOptException(_url, _curlError));
1480  }
1481 
1482  if (!cmcred)
1483  {
1484  credentials->setUrl(_url);
1485  cm.addCred(*credentials);
1486  cm.save();
1487  }
1488 
1489  return true;
1490  }
1491 
1492  return false;
1493 }
1494 
1495 //need a out of line definiton, otherwise vtable is emitted for every translation unit
1497 
1498  } // namespace media
1499 } // namespace zypp
1500 //
std::string getScheme() const
Returns the scheme name of the URL.
Definition: Url.cc:533
virtual bool checkAttachPoint(const Pathname &apoint) const override
Verify if the specified directory as attach point (root) as requires by the particular media handler ...
Definition: MediaCurl.cc:598
int assert_dir(const Pathname &path, unsigned mode)
Like &#39;mkdir -p&#39;.
Definition: PathInfo.cc:319
std::string targetDistribution() const
This is register.target attribute of the installed base product.
Definition: Target.cc:102
#define SET_OPTION_OFFT(opt, val)
Definition: MediaCurl.cc:225
#define MIL
Definition: Logger.h:96
#define _(MSG)
Definition: Gettext.h:37
ProgressData()
Ctor no range [0,0](0).
Definition: progressdata.h:171
const Pathname & path() const
Return current Pathname.
Definition: PathInfo.h:246
#define ZYPP_THROW(EXCPT)
Drops a logline and throws the Exception.
Definition: Exception.h:428
Describes a resource file located on a medium.
static ZConfig & instance()
Singleton ctor.
Definition: ZConfig.cc:823
void checkProtocol(const Url &url) const
check the url is supported by the curl library
Definition: MediaCurl.cc:277
bool authenticate(const std::string &availAuthTypes, bool firstTry) const
Definition: MediaCurl.cc:1394
Implementation class for FTP, HTTP and HTTPS MediaHandler.
Definition: MediaCurl.h:31
virtual bool checkAttachPoint(const Pathname &apoint) const
Verify if the specified directory as attach point (root) as requires by the particular media handler ...
const char * distributionFlavorHeader()
Definition: MediaCurl.cc:174
Store and operate with byte count.
Definition: ByteCount.h:30
to not add a IFMODSINCE header if target exists
Definition: MediaCurl.h:43
static int progressCallback(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow)
Callback reporting download progress.
Definition: MediaCurl.cc:1341
Pathname extend(const std::string &r) const
Append string r to the last component of the path.
Definition: Pathname.h:173
int reportProgress() const
Definition: MediaCurl.cc:149
void setAttachPoint(const Pathname &path, bool temp)
Set a new attach point.
const char * anonymousIdHeader()
Definition: MediaCurl.cc:160
bool isUseableAttachPoint(const Pathname &path, bool mtab=true) const
Ask media manager, if the specified path is already used as attach point or if there are another atta...
virtual void getFileCopy(const OnMediaLocation &srcFile, const Pathname &targetFilename) const override
Definition: MediaCurl.cc:654
static int aliveCallback(void *clientp, double dltotal, double dlnow, double ultotal, double ulnow)
Callback sending just an alive trigger to the UI, without stats (e.g.
Definition: MediaCurl.cc:1327
time_t _timeNow
Now.
Definition: MediaCurl.cc:62
AutoDispose< const Pathname > ManagedFile
A Pathname plus associated cleanup code to be executed when path is no longer needed.
Definition: ManagedFile.h:27
virtual void setupEasy()
initializes the curl easy handle with the data from the url
Definition: MediaCurl.cc:302
Convenient building of std::string with boost::format.
Definition: String.h:252
std::string form(const char *format,...) __attribute__((format(printf
Printf style construction of std::string.
Definition: String.cc:36
Edition * _value
Definition: SysContent.cc:311
AutoDispose<int> calling ::close
Definition: AutoDispose.h:300
std::string _currentCookieFile
Definition: MediaCurl.h:167
virtual void getDir(const Pathname &dirname, bool recurse_r) const override
Call concrete handler to provide directory content (not recursive!) below attach point.
Definition: MediaCurl.cc:1278
virtual void getFile(const OnMediaLocation &file) const override
Call concrete handler to provide file below attach point.
Definition: MediaCurl.cc:645
#define ERR
Definition: Logger.h:98
Url getFileUrl(const Pathname &filename) const
concatenate the attach url and the filename to a complete download url
Definition: MediaCurl.cc:629
Pathname localPath(const Pathname &pathname) const
Files provided will be available at &#39;localPath(filename)&#39;.
static void setCookieFile(const Pathname &)
Definition: MediaCurl.cc:270
virtual void releaseFrom(const std::string &ejectDev) override
Call concrete handler to release the media.
Definition: MediaCurl.cc:624
static void resetExpectedFileSize(void *clientp, const ByteCount &expectedFileSize)
MediaMultiCurl needs to reset the expected filesize in case a metalink file is downloaded otherwise t...
Definition: MediaCurl.cc:1384
bool empty() const
Test for an empty path.
Definition: Pathname.h:114
#define ZYPP_RETHROW(EXCPT)
Drops a logline and rethrows, updating the CodeLocation.
Definition: Exception.h:440
bool detectDirIndex() const
void setPathName(const std::string &path, EEncoding eflag=zypp::url::E_DECODED)
Set the path name.
Definition: Url.cc:764
int assert_file_mode(const Pathname &path, unsigned mode)
Like assert_file but enforce mode even if the file already exists.
Definition: PathInfo.cc:1202
double _dnlTotal
Bytes to download or 0 if unknown.
Definition: MediaCurl.cc:64
std::string asString() const
Returns a default string representation of the Url object.
Definition: Url.cc:497
std::string getQueryParam(const std::string &param, EEncoding eflag=zypp::url::E_DECODED) const
Return the value for the specified query parameter.
Definition: Url.cc:660
Url clearQueryString(const Url &url) const
Definition: MediaCurl.cc:265
std::string trim(const std::string &s, const Trim trim_r)
Definition: String.cc:223
int unlink(const Pathname &path)
Like &#39;unlink&#39;.
Definition: PathInfo.cc:700
const Url _url
Url to handle.
Definition: MediaHandler.h:113
void setMediaSource(const MediaSourceRef &ref)
Set new media source reference.
const std::string & asString() const
String representation.
Definition: Pathname.h:91
int rename(const Pathname &oldpath, const Pathname &newpath)
Like &#39;rename&#39;.
Definition: PathInfo.cc:742
void evaluateCurlCode(const zypp::Pathname &filename, CURLcode code, bool timeout) const
Evaluates a curl return code and throws the right MediaException filename Filename being downloaded c...
Definition: MediaCurl.cc:734
const ByteCount & downloadSize() const
The size of the resource on the server.
void disconnect()
Use concrete handler to isconnect media.
Pathname dirname() const
Return all but the last component od this path.
Definition: Pathname.h:124
do not send a start ProgressReport
Definition: MediaCurl.h:45
#define WAR
Definition: Logger.h:97
double _dnlLast
Bytes downloaded at period start.
Definition: MediaCurl.cc:65
std::list< DirEntry > DirContent
Returned by readdir.
Definition: PathInfo.h:518
void getDirectoryYast(std::list< std::string > &retlist, const Pathname &dirname, bool dots=true) const
Retrieve and if available scan dirname/directory.yast.
bool isValid() const
Verifies the Url.
Definition: Url.cc:489
virtual bool doGetDoesFileExist(const Pathname &filename) const
Definition: MediaCurl.cc:875
const Pathname & filename() const
The path to the resource on the medium.
virtual void attachTo(bool next=false) override
Call concrete handler to attach the media.
Definition: MediaCurl.cc:563
std::string numstring(char n, int w=0)
Definition: String.h:289
Common baseclass for MediaCurl and MediaNetwork.
virtual bool getDoesFileExist(const Pathname &filename) const override
Repeatedly calls doGetDoesFileExist() until it successfully returns, fails unexpectedly, or user cancels the operation.
Definition: MediaCurl.cc:703
const char * agentString()
Definition: MediaCurl.cc:188
void resetDispose()
Set no dispose function.
Definition: AutoDispose.h:180
void doGetFileCopyFile(const OnMediaLocation &srcFile, const Pathname &dest, FILE *file, callback::SendReport< DownloadProgressReport > &report, RequestOptions options=OPTION_NONE) const
Definition: MediaCurl.cc:1171
Media source internally used by MediaManager and MediaHandler.
Definition: MediaSource.h:36
zypp::ByteCount _expectedFileSize
Definition: MediaCurl.cc:57
int _dnlPercent
Percent completed or 0 if _dnlTotal is unknown.
Definition: MediaCurl.cc:68
curl_slist * _customHeaders
Definition: MediaCurl.h:175
int rmdir(const Pathname &path)
Like &#39;rmdir&#39;.
Definition: PathInfo.cc:366
#define SET_OPTION(opt, val)
Definition: MediaCurl.cc:218
Pathname absolutename() const
Return this path, adding a leading &#39;/&#39; if relative.
Definition: Pathname.h:139
Base class for Exception.
Definition: Exception.h:145
Pathname attachPoint() const
Return the currently used attach point.
std::string _lastRedirect
to log/report redirections
Definition: MediaCurl.h:170
Url url() const
Url used.
Definition: MediaHandler.h:503
double _drateLast
Download rate in last period.
Definition: MediaCurl.cc:71
std::string getPathName(EEncoding eflag=zypp::url::E_DECODED) const
Returns the path name from the URL.
Definition: Url.cc:604
std::string getHost(EEncoding eflag=zypp::url::E_DECODED) const
Returns the hostname or IP from the URL authority.
Definition: Url.cc:588
time_t _timeStart
Start total stats.
Definition: MediaCurl.cc:59
virtual void getDirInfo(std::list< std::string > &retlist, const Pathname &dirname, bool dots=true) const override
Call concrete handler to provide a content list of directory on media via retlist.
Definition: MediaCurl.cc:1311
virtual void disconnectFrom() override
Definition: MediaCurl.cc:605
static CURL * progressCallback_getcurl(void *clientp)
Definition: MediaCurl.cc:1357
bool strToBool(const C_Str &str, bool default_r)
Parse str into a bool depending on the default value.
Definition: String.h:429
double _dnlNow
Bytes downloaded now.
Definition: MediaCurl.cc:66
Reference counted access to a Tp object calling a custom Dispose function when the last AutoDispose h...
Definition: AutoDispose.h:93
Wrapper class for ::stat/::lstat.
Definition: PathInfo.h:220
AutoDispose<FILE*> calling ::fclose
Definition: AutoDispose.h:311
void updateStats(double dltotal=0.0, double dlnow=0.0)
Definition: MediaCurl.cc:106
static Pathname _cookieFile
Definition: MediaCurl.h:168
double _drateTotal
Download rate so far.
Definition: MediaCurl.cc:70
std::string anonymousUniqueId() const
anonymous unique id
Definition: Target.cc:132
mode_t applyUmaskTo(mode_t mode_r)
Modify mode_r according to the current umask ( mode_r & ~getUmask() ).
Definition: PathInfo.h:789
std::string getAuthHint() const
Return a comma separated list of available authentication methods supported by server.
Definition: MediaCurl.cc:1365
time_t _timeRcv
Start of no-data timeout.
Definition: MediaCurl.cc:61
Pathname createAttachPoint() const
Try to create a default / temporary attach point.
virtual void doGetFileCopy(const OnMediaLocation &srcFile, const Pathname &targetFilename, callback::SendReport< DownloadProgressReport > &_report, RequestOptions options=OPTION_NONE) const
Definition: MediaCurl.cc:1061
Easy-to use interface to the ZYPP dependency resolver.
Definition: CodePitfalls.doc:1
std::string distributionFlavor() const
This is flavor attribute of the installed base product but does not require the target to be loaded a...
Definition: Target.cc:127
char _curlError[CURL_ERROR_SIZE]
Definition: MediaCurl.h:174
time_t _timeLast
Start last period(~1sec)
Definition: MediaCurl.cc:60
const char * c_str() const
Definition: IdStringType.h:105
bool userMayRWX() const
Definition: PathInfo.h:353
Url manipulation class.
Definition: Url.h:91
#define DBG
Definition: Logger.h:95
zypp::callback::SendReport< zypp::media::DownloadProgressReport > * report
Definition: MediaCurl.cc:56
std::string getUsername(EEncoding eflag=zypp::url::E_DECODED) const
Returns the username from the URL authority.
Definition: Url.cc:572