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2015-01-27sasl: implement EXTERNAL authentication mechanism.Patrick Monnerat
Its use is only enabled by explicit requirement in URL (;AUTH=EXTERNAL) and by not setting the password.
2015-01-20SASL: common state engine for imap/pop3/smtpPatrick Monnerat
2015-01-20SASL: common URL option and auth capabilities decoders for all protocolsPatrick Monnerat
2015-01-20IMAP/POP3/SMTP: use a per-connection sub-structure for SASL parameters.Patrick Monnerat
2014-12-16IPV6: address scope != scope idPatrick Monnerat
There was a confusion between these: this commit tries to disambiguate them. - Scope can be computed from the address itself. - Scope id is scope dependent: it is currently defined as 1-based local interface index for link-local scoped addresses, and as a site index(?) for (obsolete) site-local addresses. Linux only supports it for link-local addresses. The URL parser properly parses a scope id as an interface index, but stores it in a field named "scope": confusion. The field has been renamed into "scope_id". Curl_if2ip() used the scope id as it was a scope. This caused failures to bind to an interface. Scope is now computed from the addresses and Curl_if2ip() matches them. If redundantly specified in the URL, scope id is check for mismatch with the interface index. This commit should fix SF bug #1451.
2014-11-16kerberos: Use symbol qualified with _KERBEROS5Michael Osipov
For consistency renamed USE_KRB5 to USE_KERBEROS5.
2014-11-02sasl: Fixed Kerberos V5 inclusion when CURL_DISABLE_CRYPTO_AUTH is usedSteve Holme
Typically the USE_WINDOWS_SSPI definition would not be used when the CURL_DISABLE_CRYPTO_AUTH define is, however, it is still a valid build configuration and, as such, the SASL Kerberos V5 (GSSAPI) authentication data structures and functions would incorrectly be used when they shouldn't be. Introduced a new USE_KRB5 definition that takes into account the use of CURL_DISABLE_CRYPTO_AUTH like USE_SPNEGO and USE_NTLM do.
2014-10-02pop3_perform_authentication: fix memory leakDaniel Stenberg
Coverity CID 1215287. There's a potential risk for a memory leak in here, and moving the free call to be unconditional seems like a cheap price to remove the risk.
2014-09-07Ensure progress.size_dl/progress.size_ul are always >= 0Brandon Casey
Historically the default "unknown" value for progress.size_dl and progress.size_ul has been zero, since these values are initialized implicitly by the calloc that allocates the curl handle that these variables are a part of. Users of curl that install progress callbacks may expect these values to always be >= 0. Currently it is possible for progress.size_dl and progress.size_ul to by set to a value of -1, if Curl_pgrsSetDownloadSize() or Curl_pgrsSetUploadSize() are passed a "size" of -1 (which a few places currently do, and a following patch will add more). So lets update Curl_pgrsSetDownloadSize() and Curl_pgrsSetUploadSize() so they make sure that these variables always contain a value that is >= 0. Updates test579 and test599. Signed-off-by: Brandon Casey <drafnel@gmail.com>
2014-08-15pop3: Added support for GSSAPI (Kerberos V5) authentication via Windows SSPISteve Holme
2014-08-14email: Introduced the GSSAPI statesSteve Holme
2014-05-22bits.close: introduce connection close trackingDaniel Stenberg
Make all code use connclose() and connkeep() when changing the "close state" for a connection. These two macros take a string argument with an explanation, and debug builds of curl will include that in the debug output. Helps tracking connection re-use/close issues.
2014-04-23handler: make 'protocol' always specified as a single bitDaniel Stenberg
This makes the findprotocol() function work as intended so that libcurl can properly be restricted to not support HTTP while still supporting HTTPS - since the HTTPS handler previously set both the HTTP and HTTPS bits in the protocol field. This fixes --proto and --proto-redir for most SSL protocols. This is done by adding a few new convenience defines that groups HTTP and HTTPS, FTP and FTPS etc that should then be used when the code wants to check for both protocols at once. PROTO_FAMILY_[protocol] style. Bug: https://github.com/bagder/curl/pull/97 Reported-by: drizzt
2014-04-05sasl: Combined DIGEST-MD5 message decoding and generationSteve Holme
2013-12-24pop3: Fixed auth preference not being honored when CAPA not supportedSteve Holme
If a user indicated they preferred to authenticate using APOP or a SASL mechanism, but neither were supported by the server, curl would always fall back to clear text when CAPA wasn't supported, even though the user didn't want to use this. This also fixes the auto build failure caused by commit 6f2d5f0562f64a.
2013-12-24pop3: Fixed APOP being determined by CAPA response rather than by timestampSteve Holme
This commit replaces that of 9f260b5d6610f3 because according to RFC-2449, section 6, there is no APOP capability "...even though APOP is an optional command in [POP3]. Clients discover server support of APOP by the presence in the greeting banner of an initial challenge enclosed in angle brackets."
2013-12-22email: Fixed segfault introduced in commit 195b63f99c2fe3Steve Holme
2013-12-22code police: fix indent level to silence checksrc complaintsDaniel Stenberg
2013-12-21email: Extended the login options to support multiple auth mechanismsSteve Holme
2013-12-21Revert "pop3: Added debug information to assist with test864 failure"Steve Holme
This reverts commit 727d798d680f29c8b3cb7d7f03d6b6a3eb4356da.
2013-12-21pop3: Added debug information to assist with test864 failureSteve Holme
2013-12-20pop3: Fixed APOP timestamp detection from commit 1cfb436a2f1795Steve Holme
2013-12-20vtls: renamed sslgen.[ch] to vtls.[ch]Daniel Stenberg
2013-12-20vtls: created subdir, moved sslgen.[ch] there, updated all include linesDaniel Stenberg
2013-12-20pop3: Fixed selection of APOP when server replies with an invalid timestampSteve Holme
Although highlighted by a bug in commit 1cfb436a2f1795, APOP authentication could be chosen if the server was to reply with an empty or missing timestamp in the server greeting and APOP was given in the capability list by the server.
2013-12-20pop3: Fixed processing of more than one response when sent in same packetSteve Holme
Added a loop to pop3_statemach_act() in which Curl_pp_readresp() is called until the cache is drained. Without this multiple responses received in a single packet could result in a hang or delay.
2013-12-19pop3: Moved CAPA response handling to pop3_state_capa_resp()Steve Holme
Similar to the processing of untagged CAPABILITY responses in IMAP and multi-line EHLO responses in SMTP, moved the processing of multi-line CAPA responses to pop3_state_capa_resp().
2013-12-19pop3: Moved APOP detection into pop3_state_servergreet_resp()Steve Holme
In an effort to reduce what pop3_endofresp() does and bring the POP3 source back inline with the IMAP and SMTP protocols, moved the APOP detection into pop3_state_servergreet_resp().
2013-12-18imap/pop3/smtp: Added support for SASL authentication downgradesSteve Holme
Added support for downgrading the SASL authentication mechanism when the decoding of CRAM-MD5, DIGEST-MD5 and NTLM messages fails. This enhances the previously added support for graceful cancellation by allowing the client to retry a lesser SASL mechanism such as LOGIN or PLAIN, or even APOP / clear text (in the case of POP3 and IMAP) when supported by the server.
2013-12-18pop3: Moved the calculation of SASL login details into a separate functionSteve Holme
2013-12-18pop3: Moved the sending of the AUTH command into a separate functionSteve Holme
2013-12-17email: Renamed *_perform_authenticate() functionsSteve Holme
In preparation for the upcoming SASL downgrade feature renamed the imap__perform_authenticate(), pop3__perform_authenticate() and smtp__perform_authenticate() functions.
2013-12-04imap/pop3: Post graceful cancellation consistency changesSteve Holme
2013-10-30email: Corrected a couple of typos from commit aa0eaef4838ccdSteve Holme
2013-10-30email: Post graceful SASL authentication cancellation tidy upSteve Holme
2013-10-27email: Added support for cancelling NTLM authenticationSteve Holme
2013-10-27email: Added support for cancelling DIGEST-MD5 authenticationSteve Holme
2013-10-27email: Corrected a couple of typos from 1e39b95682781fSteve Holme
2013-10-27email: Added support for canceling CRAM-MD5 authenticationSteve Holme
2013-10-27email: Added initial support for cancelling authenticationSteve Holme
Should a client application fail to decode an authentication message received from a server, or not support any of the parameters given by the server in the message, then the authentication phrase should be cancelled gracefully by the client rather than simply terminating the connection. The authentication phrase should be cancelled by simply sending a '*' to the server, in response to erroneous data being received, as per RFC-3501, RFC-4954 and RFC-5034. This patch adds the necessary state machine constants and appropriate response handlers in order to add this functionality for the CRAM-MD5, DIGEST-MD5 and NTLM authentication mechanisms.
2013-10-27email: Moved authentication message parsing into a separate functionSteve Holme
...in preparation for upcoming modifications.
2013-10-26email: Added references to SASL LOGIN authentication draft proposalSteve Holme
2013-10-18email: Fixed QUIT / LOGOUT being sent when SSL connect failsSteve Holme
2013-09-24sasl: Centralised the authentication mechanism stringsSteve Holme
Moved the standard SASL mechanism strings into curl_sasl.h rather than hard coding the same values over and over again in the protocols that use SASL authentication. For more information about the mechanism strings see: http://www.iana.org/assignments/sasl-mechanisms
2013-09-20pop3: Added basic SASL XOAUTH2 supportSteve Holme
Added the ability to use an XOAUTH2 bearer token [RFC6750] with POP3 for authentication using RFC6749 "OAuth 2.0 Authorization Framework". The bearer token is expected to be valid for the user specified in conn->user. If CURLOPT_XOAUTH2_BEARER is defined and the connection has an advertised auth mechanism of "XOAUTH2", the user and access token are formatted as a base64 encoded string and sent to the server as "AUTH XOAUTH2 <bearer token>".
2013-09-10imap/pop3/smtp: Speed up SSL connection initializationJiri Hruska
Don't wait for the next callback call (usually 1 second) before continuing with protocol specific connection initialization.
2013-08-12SessionHandle: the protocol specific pointer is now a void *Daniel Stenberg
All protocol handler structs are now opaque (void *) in the SessionHandle struct and moved in the request-specific sub-struct 'SingleRequest'. The intension is to keep the protocol specific knowledge in their own dedicated source files [protocol].c etc. There's some "leakage" where this policy is violated, to be addressed at a later point in time.
2013-08-12urldata: clean up the use of the protocol specific structsDaniel Stenberg
1 - always allocate the struct in protocol->setup_connection. Some protocol handlers had to get this function added. 2 - always free at the end of a request. This is also an attempt to keep less memory in the handle after it is completed.
2013-08-09comments: remove old and wrong multi/easy interface statementsDaniel Stenberg
2013-07-24string formatting: fix zero-length printf format stringYang Tse