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Updated the imap_parse_url_path() function to parse uidvalidity, uid and
section parameters based on RFC-5092.
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Added imap_is_bchar() for testing if a given character is a valid bchar
or not.
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Added uidvalidity, uid and section variables to the per-request IMAP
structure in preparation for upcoming URL parsing.
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Used imap_atom() to escape mailbox names in imap_select().
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Changed some variables and comments still using FTP terminology.
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Removed user and passwd from the IMAP struct as these cannot be set on
a per-request basis and are leftover from legacy FTP code.
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Created a new IMAP structure and changed the type of the imap proto
variable in connectdata from FTP* to the new IMAP*.
Moved the mailbox variable from the per-connection struct imap_conn to
the new per-request struct and fixed references accordingly.
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Moved the clean-up of the mailbox variable from imap_disconnect() to
imap_done() as this variable is allocated in the do phase, yet would
have only been freed only once if multiple selects where preformed
on a single connection.
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Fixed an incorrect variable reference which was introduced in commit
a1701eea289f as a result of a copy and paste from SMTP/POP3.
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Tidied up result variables to be consistent in name, declaration order
and default values.
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Due to the reordering of functions in commit 586f5d361474 the forward
declaration to state_upgrade_tls() are no longer required.
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... since they're not used by the easy interface really, I wanted to
remove the association. Also, I unified the pingpong statemachine driver
into a single function with a 'wait' argument: Curl_pp_statemach.
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Replaced two explicit comparisons of CURLE_OK with boolean alternatives.
General tidy up of comments.
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Fixed a small whitespace issue that crept in there in commit
508cdf4da4d7.
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Removed unnecessary end of line check and return.
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Reworked the pp->endofresp() function so that the conndata, line and
line length are passed down to it just as with Curl_client_write()
rather than each implementation of the function having to query
these values.
Additionally changed the int return type to bool as this is more
representative of the function's usage.
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Corrected the order of the upgrade_tls() functions and moved the handler
upgrade and getsock() functions out from the middle of the state related
functions.
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Corrected the order of the pop3_state_capa() / imap_state_capability()
and the pop3_state_capa_resp() / imap_state_capability_resp() functions
to match the execution order.
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Corrected the order of the CAPA / CAPABILITY state machine constants to
match the execution order.
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Added honoring of the tls_supported flag when starting a TLS upgrade
rather than unconditionally attempting it. If the use_ssl flag is set
to CURLUSESSL_TRY and the server doesn't support TLS upgrades then the
connection will continue to authenticate. If this flag is set to
CURLUSESSL_ALL then the connection will complete with a failure as it
did previously.
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Added sending of initial CAPABILITY command before STARTTLS is sent.
This allows for the detection of the capability before trying to
upgrade the connection.
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Introduced detection of the STARTTLS capability, in order to add support
for TLS upgrades without unconditionally sending the STARTTLS command.
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Renamed the authstate1 and authstate2 variables in imap_authenticate()
as the old name was a left over from when there was only one state
variable which was named due to a clash with the state() function.
Additionally this provides consistency with the smtp module.
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Modified imap_authenticate() to add support for sending the initial
response with the AUTHENTICATE command, as per RFC4959.
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Introduced detection of the SASL-IR capability, in order to add support
for sending the initial response with the AUTHENTICATE command, as per
RFC4959.
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Updated the automatic response tag generation to follow the examples
given in RC3501, which list a 4 character string such as A001, A002,
etc.
As a unique identifier should be generated for each command the string
generation is based on the connection id and the incrementing command
id.
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Renamed a couple of variables and updated some comments in
preparation for upcoming command id / response tag change.
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To help maintain the readability of the code in imap.c, pop3.c and
smtp.c moved the starttls code into state_starttls() functions.
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Tidied up the comments in the endofresp() functions to be more
meaningful prior to release.
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Provided additional clarification about the logic of the authenticate()
functions following commit 6b6bdc83bd36 and b4270a9af1d0.
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Fixed an issue where (lib)curl is compiled without support for a
supported challenge-response based SASL authentication mechanism, such
as CRAM-MD5 or NTLM, the server doesn't support the LOGIN or PLAIN
mechanisms and (lib)curl doesn't fallback to Clear Text authentication.
Note: In order to fallback to Clear Text authentication properly this
fix adds support for the LOGINDISABLED server capability.
imap: Fixed no known authentication mechanism when fallback is required
Fixed an issue where (lib)curl is compiled without support for a
supported challenge-response based SASL authentication mechanism, such
as CRAM-MD5 or NTLM, the server doesn't support the LOGIN or PLAIN
mechanisms and (lib)curl doesn't fallback to Clear Text authentication.
Note: In order to fallback to Clear Text authentication properly this
fix adds support for the LOGINDISABLED server capability.
Related bug: http://curl.haxx.se/mail/lib-2013-02/0004.html
Reported by: Stanislav Ivochkin
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The state machine should only be changed to IMAP_STARTTLS when the
STARTTLS command has been successfully sent to the server.
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imap_state_upgrade_tls() would attempt to incorrectly complete the
upgrade to imaps and start the CAPABILITY command if
Curl_ssl_connect_nonblocking() returned a failure code and if ssldone
was set to TRUE. This would only happen when a non-blocking API hadn't
been provided by the SSL implementation and curlssl_connect() was
called underneath.
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Small tidy up to remove unnecessary return statements prior to the next
fix.
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The most recent version of the SASL RFC is RFC4422 and not RFC2222 as
previously documented.
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Corrected some function argument definitions to maximize the 80
character line length limit and be in keeping with the curl
coding style.
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Remove internal separated behavior of the easy vs multi intercace.
curl_easy_perform() is now using the multi interface itself.
Several minor multi interface quirks and bugs have been fixed in the
process.
Much help with debugging this has been provided by: Yang Tse
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This commit renames lib/setup.h to lib/curl_setup.h and
renames lib/setup_once.h to lib/curl_setup_once.h.
Removes the need and usage of a header inclusion guard foreign
to libcurl. [1]
Removes the need and presence of an alarming notice we carried
in old setup_once.h [2]
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1 - lib/setup_once.h used __SETUP_ONCE_H macro as header inclusion guard
up to commit ec691ca3 which changed this to HEADER_CURL_SETUP_ONCE_H,
this single inclusion guard is enough to ensure that inclusion of
lib/setup_once.h done from lib/setup.h is only done once.
Additionally lib/setup.h has always used __SETUP_ONCE_H macro to
protect inclusion of setup_once.h even after commit ec691ca3, this
was to avoid a circular header inclusion triggered when building a
c-ares enabled version with c-ares sources available which also has
a setup_once.h header. Commit ec691ca3 exposes the real nature of
__SETUP_ONCE_H usage in lib/setup.h, it is a header inclusion guard
foreign to libcurl belonging to c-ares's setup_once.h
The renaming this commit does, fixes the circular header inclusion,
and as such removes the need and usage of a header inclusion guard
foreign to libcurl. Macro __SETUP_ONCE_H no longer used in libcurl.
2 - Due to the circular interdependency of old lib/setup_once.h and the
c-ares setup_once.h header, old file lib/setup_once.h has carried
back from 2006 up to now days an alarming and prominent notice about
the need of keeping libcurl's and c-ares's setup_once.h in sync.
Given that this commit fixes the circular interdependency, the need
and presence of mentioned notice is removed.
All mentioned interdependencies come back from now old days when
the c-ares project lived inside a curl subdirectory. This commit
removes last traces of such fact.
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