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* dirmngr: Extended the http_get_header function.Werner Koch2023-10-021-1/+1
| | | | | | | * dirmngr/http.c (send_request): Add arg 'skip'. Adjust all callers. -- GnuPG-bug-id: 6719
* dirmngr: Cleanup the http module.Werner Koch2023-09-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * configure.ac (NEED_NTBTLS_VERSION): Require at least 0.2.0 so that we can remove a conditional compilation. * dirmngr/http.c (struct proxy_info_s): New. (release_proxy_info): New to keep proxy information in one object. (send_request): Factor some code out to ... (get_proxy_for_url): this, (send_request_basic_checks): this, (send_request_set_sni): this, (run_ntbtls_handshake): this, (run_gnutls_handshake): and this. -- Note that this also removes some never used code. For example the NTBTLS handshake has code taken from GNUTLS which was never used due to the different ways on how the certificates are checked. The proxy code has been factored out to make to prepare further authentication methods. The proxy_info_t was introduced for the same reason. Tested against gnutls and ntbtls builds. No proxy tests yet done, because we need more sophisticated tests anyway. GnuPG-bug-id: 5768
* dirmngr: Disable the HTTP redirect rewriting.Werner Koch2023-06-151-0/+1
| | | | | | | | | | | | * dirmngr/http.h (struct http_redir_info_s): Add restrict_redir. * dirmngr/ks-engine-hkp.c (send_request): Set it depending on flags. * dirmngr/ks-engine-http.c (ks_http_fetch): Ditto. * dirmngr/t-http-basic.c (test_http_prepare_redirect): Always set it. * dirmngr/http.c (http_prepare_redirect): Remove location rewriting unless the flag is set. -- GnuPG-bug-id: 6477
* dirmngr: Support pseudo URI scheme "opaque".Werner Koch2021-06-161-1/+3
| | | | | | | | | | | | | | | * dirmngr/http.h (HTTP_PARSE_NO_SCHEME_CHECK): New. * dirmngr/http.c (http_parse_uri): Use this flag. Change all callers to use the new macro for better readability. (do_parse_uri): Add pseudo scheme "opaque". (uri_query_value): New. -- This scheme can be used to convey arbitrary strings in a parsed_uri_t object. Signed-off-by: Werner Koch <[email protected]> (cherry picked from commit 72124fadafde153f8ac89a70202006d831829d06)
* dirmngr: Support "ldap:///" for the current AD user.Werner Koch2020-12-171-0/+1
| | | | | | | | | | | * dirmngr/http.h (struct parsed_uri_s): Add field ad_current. * dirmngr/ldap-parse-uri.c (ldap_parse_uri): Set it. * dirmngr/ks-engine-ldap.c (my_ldap_connect): Take care of ad_current. -- Ported from 2.2. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Rework of the LDAP code, part 1.Werner Koch2019-11-261-3/+4
| | | | | | | | | | | | | | | | | | | | | | | * dirmngr/http.h (struct parsed_uri_s): Add flag is_ldap. * dirmngr/http.c (do_parse_uri): Set flag. Do not error out for a missing slashes in an http scheme if NO_SCHEME_CHECK is active. * dirmngr/t-http.c (main): Print new flag. * dirmngr/ks-engine-ldap.c (ks_ldap_help): Use flag instead of checking the scheme. * dirmngr/ldap-parse-uri.c (ldap_uri_p): Re-implement using http_parse_uri. * dirmngr/t-ldap-parse-uri.c (main): Add option --verbose. -- This patch merely remove the separate parser for checking for an LDAP scheme. It is better to let our generic URI parser handle this. Also fixes this bug || url[4] == 'i' || url[4] == 'i') to make the rarely used ldapi scheme case-insensitive. More changes to the LDAP code are planned. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Forward http redirect warnings to gpg.Werner Koch2019-11-181-0/+2
| | | | | | | | | | | | | | | | * dirmngr/http.c: Include dirmngr-status.h (http_prepare_redirect): Emit WARNING status lines for redirection problems. * dirmngr/http.h: Include fwddecl.h. (struct http_redir_info_s): Add field ctrl. * dirmngr/ks-engine-hkp.c (send_request): Set it. * dirmngr/ks-engine-http.c (ks_http_fetch): Set it. * g10/call-dirmngr.c (ks_status_cb): Detect the two new warnings. -- This should make it easier to diagnose problems with bad WKD servers. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: New function http_status2string.Werner Koch2018-12-111-0/+2
| | | | | | | | | * dirmngr/http.c (http_status2string): New. -- Right now only the standard 5xx codes. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Avoid possible CSRF attacks via http redirects.Werner Koch2018-11-221-0/+21
| | | | | | | | | | | | | | | | | | | | * dirmngr/http.h (parsed_uri_s): Add fields off_host and off_path. (http_redir_info_t): New. * dirmngr/http.c (do_parse_uri): Set new fields. (same_host_p): New. (http_prepare_redirect): New. * dirmngr/t-http-basic.c: New test. * dirmngr/ks-engine-hkp.c (send_request): Use http_prepare_redirect instead of the open code. * dirmngr/ks-engine-http.c (ks_http_fetch): Ditto. -- With this change a http query will not follow a redirect unless the Location header gives the same host. If the host is different only the host and port is taken from the Location header and the original path and query parts are kept. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Print a WARNING status for DNS config problems.Werner Koch2018-07-251-3/+3
| | | | | | | | | | | | | | | | | | | | | * dirmngr/dirmngr-status.h: New. * dirmngr/dirmngr.h: Include dirmngr-status.h and move some prototypes to that file. * dirmngr/t-support.c: New. * dirmngr/Makefile.am (dirmngr_SOURCES): Add dirmngr-status.h. (t_common_src): Add t-support.c. * dirmngr/server.c (dirmngr_status_printf): Bypass if CTRL is NULL. * dirmngr/dns-stuff.c: Include dirmngr-status.h. (libdns_init): Print WARNING status line. Change call callers to take and pass a CTRL argument. * g10/call-dirmngr.c (ks_status_cb): Print info for new WARNING status. -- To test this you can change RESOLV_CONF_NAME in dns-stuff.c and run gpg --recv-key -v SOMETHING. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Implement CRL fetching via https.Werner Koch2018-04-251-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | * dirmngr/http.h (HTTP_FLAG_TRUST_CFG): New flag. * dirmngr/http.c (http_register_cfg_ca): New. (http_session_new) [HTTP_USE_GNUTLS]: Implement new trust flag. * dirmngr/certcache.c (load_certs_from_dir): Call new function. (cert_cache_deinit): Ditto. * dirmngr/http-ntbtls.c (gnupg_http_tls_verify_cb): Ditto. * dirmngr/ks-engine-http.c (ks_http_fetch): Add new args 'send_no_cache' and 'extra_http_trust_flags'. Change all callers to provide the default value. * dirmngr/crlfetch.c (crl_fetch): Rewrite to make use of ks_http_fetch. -- The old code simply did not use https for downloading of CRLS. Instead it rewrote https to http under the assumption that the CRL service was also available without encryption. Note that a CRL is self-standing and thus it does not need to have extra authenticity as provided by TLS. These days we should not use any unencrypted content and thus this patch. Be aware that cacert.org give a https CRL DP but that currently redirects to to http! This is a downgrade attack which we detect and don't allow. The outcome is that it is right now not possible to use CAcert certificates. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Honor http keyserver URLs.Justus Winter2017-07-181-0/+1
| | | | | | | | | | | | | | | * dirmngr/http.c (parse_uri): Keep an unmodified copy of the URI. * dirmngr/http.h (struct parsed_uri_s): New field 'original'. * dirmngr/ks-action.c (ks_action_get): Properly handle http and https URLs. -- If a key has a http or https URL as preferred keyserver, fetch the key from there. Previously, dirmngr unconditionally interpreted these URLs as hkp servers. GnuPG-bug-id: 2924 Signed-off-by: Justus Winter <[email protected]>
* dirmngr: Allow a timeout for HTTP and other TCP connects.Werner Koch2017-06-081-1/+3
| | | | | | | | | | | | | | | | | | | | | | | * dirmngr/http.c: Include fcntl.h. (http_session_s): Add field 'connect_timeout'. (http_session_new): Clear that. (http_session_set_timeout): New function. (my_wsagetlasterror) [W32]: New. (connect_with_timeout): New function. (connect_server): Add arg 'timeout' and call connect_with_timeout. (send_request): Add arg 'timeout' and pass it to connect_server. (http_raw_connect): Add arg 'timeout'. (http_open): Pass TIMEOUT from the session to connect_server. -- Note that the non-blocking connect we implement is traditional a pretty non-portable thing due to slighly different semantics. The code uses the strategy W. Richard Stevens suggested in 1998. Hopefully current OS versions got it all right. The code has not been tested on Windows. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Add special treatment for the standard hkps pool to ntbtls.Werner Koch2017-02-211-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * dirmngr/validate.h (VALIDATE_FLAG_SYSTRUST): Remove (VALIDATE_FLAG_EXTRATRUST): Remove (VALIDATE_FLAG_TRUST_SYSTEM): New. (VALIDATE_FLAG_TRUST_CONFIG): New. (VALIDATE_FLAG_TRUST_HKP): New. (VALIDATE_FLAG_TRUST_HKPSPOOL): New. (VALIDATE_FLAG_MASK_TRUST): New. * dirmngr/validate.c (check_header_constants): New. (validate_cert_chain): Call new function. Simplify call to is_trusted_cert. * dirmngr/crlcache.c (crl_parse_insert): Pass VALIDATE_FLAG_TRUST_CONFIG to validate_cert_chain * dirmngr/server.c (cmd_validate): Use VALDIATE_FLAG_TRUST_SYSTEM and VALIDATE_FLAG_TRUST_CONFIG. * dirmngr/http-ntbtls.c (gnupg_http_tls_verify_cb): Check provided TLS context. Set trustclass flags using the new VALIDATE_FLAG_TRUST values. * dirmngr/certcache.c (cert_cache_init): Load the standard pool certificate prior to the --hkp-cacerts. -- Note that this changes the way the standard cert is used: We require that it is installed at /usr/share/gnupg and we do not allow to change it. If this is not desired, the the standard cert can be removed or replaced by a newer one. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: New Assuan option "http-crl".Werner Koch2017-02-211-1/+2
| | | | | | | | | | | | | | | | | | * dirmngr/dirmngr.h (server_control_s): New flag 'http_no_crl'. * dirmngr/dirmngr.c (dirmngr_init_default_ctrl): Set this flag. * dirmngr/server.c (option_handler): New option "http-crl" * dirmngr/http.h (HTTP_FLAG_NO_CRL): New flag. * dirmngr/http-ntbtls.c (gnupg_http_tls_verify_cb): Consult this flag. * dirmngr/ks-engine-hkp.c (send_request): Set flag depending on CTRL. * dirmngr/ks-engine-http.c (ks_http_fetch): Ditto. * dirmngr/t-http.c (main): New option --no-crl. -- This new option can be used to enable CRL checks on a per session base. The default is not to use CRLs for https connections. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Add per-session verify callback to http.cWerner Koch2017-02-181-2/+10
| | | | | | | | | | | | | | | | | | | * dirmngr/http.h (http_verify_cb_t): New type. * dirmngr/http.c (http_session_s): Add fields flags, verify_cb, and verify_cb_value. (http_session_new): Remove arg tls_priority. Add args verify_cb and verify-cb_value. Store them in the session object. (send_request): Use per-session verify callback. (http_verify_server_credentials) [HTTP_USE_NTBTLS]: Return GPG_ERR_NOT_IMPLEMENTED. * dirmngr/ks-engine-hkp.c (send_request): Adjust for changed http_session_new. * dirmngr/ks-engine-http.c (ks_http_fetch): Ditto. * dirmngr/t-http.c (main): Ditto. * dirmngr/server.c (do_get_cert_local): Replace xmalloc by malloc. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Add debug code to http.c.Werner Koch2017-01-111-0/+2
| | | | | | | | | | | | | * dirmngr/http.c (opt_verbose, opt_debug): New vars. (http_set_verbose): New function. (_my_socket_new): Add debug output. (_my_socket_ref, _my_socket_unref, session_unref): Call log_debug if OPT_DEBUG has ben set to 2 in a debugger. (http_session_new, http_session_ref): Ditto. (send_request, http_start_data): Print debug output for the request. (parse_response): Change to use log_debug_string for the response. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Do not use a SRV record for HKP if a port was specified.Werner Koch2017-01-091-0/+1
| | | | | | | | | | | | | | | | | * dirmngr/http.h (parsed_uri_s): Add field EXPLICIT_PORT. * dirmngr/http.c (do_parse_uri): That it. * dirmngr/ks-engine-hkp.c (map_host): Add arg NO_SRV. (make_host_part): Ditto. (ks_hkp_resolve): Set NO_SRV from EXPLICIT_PORT. (ks_hkp_search): Ditto. (ks_hkp_get): Ditto. (ks_hkp_put): Ditto. -- This implements the behaviour of the keyserver helpers from 1.4 and 2.0. Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Prepare to trigger jobs by network activity.Werner Koch2016-11-111-0/+2
| | | | | | | | | | | * dirmngr/http.c (netactivity_cb): New. (http_register_netactivity_cb): New. (notify_netactivity): New. (connect_server): Call that function. * dirmngr/dirmngr.c (main): Call http_register_netactivity_cb. (netactivity_action): New stub handler. Signed-off-by: Werner Koch <[email protected]>
* Change all http://www.gnu.org in license notices to https://Werner Koch2016-11-051-1/+1
| | | | --
* http: Allow to request system defined CAs for TLS.Werner Koch2016-04-261-3/+6
| | | | | | | | | | | | * dirmngr/http.h (HTTP_FLAG_TRUST_DEF, HTTP_FLAG_TRUST_SYS): New. * dirmngr/http.c (http_session_new): Add arg "flags". * dirmngr/ks-engine-hkp.c (send_request): Use new flag HTTP_FLAG_TRUST_DEF for the new arg of http_session_new. * dirmngr/ks-engine-http.c (ks_http_fetch): Ditto. * dirmngr/t-http.c (main): Ditto. -- Signed-off-by: Werner Koch <[email protected]>
* dirmngr: Use sks-keyservers CA by default for the hkps pool.Daniel Kahn Gillmor2016-01-221-1/+2
| | | | | | | | | | | | | | | | | | * dirmngr/Makefile.am (dist_pkgdata_DATA): Add sks-keyservers.netCA.pem. * dirmngr/http.c (http_session_new): Add optional arg intended_hostname and set a default cert. * dirmngr/ks-engine-hkp.c (send_request): Pass httphost to http_session_new. -- Ship the certificate for the sks-keyservers hkps pool. If the user has specified that they want to use hkps://hkps.pool.sks-keyservers.net, and they have not specified any hkp-cacert explicitly, then initialize the trust path with this specific trust anchor. Co-authored-by: [email protected] Signed-off-by: Werner Koch <[email protected]>
* http: Enhance parser to detect .onion addresses.Werner Koch2015-12-021-0/+1
| | | | | | | | * dirmngr/http.h (parsed_uri_s): Add flag 'onion'. * dirmngr/http.c (do_parse_uri): Set that flag. * dirmngr/t-http.c (main): Print flags. Signed-off-by: Werner Koch <[email protected]>
* Move http module from common/ to dirmngr/.Werner Koch2015-10-181-0/+156
| | | | | | | | | | | | | | | | | | | | | | | | | | | * common/http.c: Move to ../dirmngr/. * common/http.h: Move to ../dirmngr/. * common/t-http.c: Move to ../dirmngr/. * common/tls-ca.pem: Move to ../dirmngr/. * common/Makefile.am: Do not build libcommontls.a libcommontlsnpth.a. Remove http.c related stuff. * po/POTFILES.in: Move http.c to dirmngr/. * dirmngr/Makefile.am (EXTRA_DIST): Add tls-ca.pem. (module_maint_tests): New. (noinst_PROGRAMS): Add module_maint_tests. (dirmngr_SOURCES): Add http.c and http.h. (dirmngr_LDADD): Remove libcommontlsnpth. (t_common_ldadd): Ditto. (t_http_SOURCES, t_http_CFLAGS, t_http_LDADD): New. (t_ldap_parse_uri_SOURCES): Add http.c. (t_ldap_parse_uri_CFLAGS): Build without npth. ($(PROGRAMS)): Do not require libcommontls.a libcommontlsnpth.a. * dirmngr/dirmngr.h, dirmngr/ks-engine.h: Fix include of http.h. -- All network access is done via dirmngr and thus http.c should be there. Signed-off-by: Werner Koch <[email protected]>
* Some work on porting dirmngr (unfinished)Werner Koch2010-07-161-109/+0
| | | | | Ported gpgtar to W32.
* Merged Dirmngr with GnuPG.Werner Koch2010-06-091-0/+109
A few code changes to support dirmngr.
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