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lib.h File Reference

API for encryption/signing of emails. More...

#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
+ Include dependency graph for lib.h:

Go to the source code of this file.

Macros

#define SEC_NO_FLAGS   0
 No flags are set.
 
#define SEC_ENCRYPT   (1 << 0)
 Email is encrypted.
 
#define SEC_SIGN   (1 << 1)
 Email is signed.
 
#define SEC_GOODSIGN   (1 << 2)
 Email has a valid signature.
 
#define SEC_BADSIGN   (1 << 3)
 Email has a bad signature.
 
#define SEC_PARTSIGN   (1 << 4)
 Not all parts of the email is signed.
 
#define SEC_SIGNOPAQUE   (1 << 5)
 Email has an opaque signature (encrypted)
 
#define SEC_KEYBLOCK   (1 << 6)
 Email has a key attached.
 
#define SEC_INLINE   (1 << 7)
 Email has an inline signature.
 
#define SEC_OPPENCRYPT   (1 << 8)
 Opportunistic encrypt mode.
 
#define SEC_AUTOCRYPT   (1 << 9)
 (Autocrypt) Message will be, or was Autocrypt encrypt+signed
 
#define SEC_AUTOCRYPT_OVERRIDE   (1 << 10)
 (Autocrypt) Indicates manual set/unset of encryption
 
#define APPLICATION_PGP   (1 << 11)
 Use PGP to encrypt/sign.
 
#define APPLICATION_SMIME   (1 << 12)
 Use SMIME to encrypt/sign.
 
#define PGP_TRADITIONAL_CHECKED   (1 << 13)
 Email has a traditional (inline) signature.
 
#define SEC_ALL_FLAGS   ((1 << 14) - 1)
 
#define PGP_ENCRYPT   (APPLICATION_PGP | SEC_ENCRYPT)
 
#define PGP_SIGN   (APPLICATION_PGP | SEC_SIGN)
 
#define PGP_GOODSIGN   (APPLICATION_PGP | SEC_GOODSIGN)
 
#define PGP_KEY   (APPLICATION_PGP | SEC_KEYBLOCK)
 
#define PGP_INLINE   (APPLICATION_PGP | SEC_INLINE)
 
#define SMIME_ENCRYPT   (APPLICATION_SMIME | SEC_ENCRYPT)
 
#define SMIME_SIGN   (APPLICATION_SMIME | SEC_SIGN)
 
#define SMIME_GOODSIGN   (APPLICATION_SMIME | SEC_GOODSIGN)
 
#define SMIME_BADSIGN   (APPLICATION_SMIME | SEC_BADSIGN)
 
#define SMIME_OPAQUE   (APPLICATION_SMIME | SEC_SIGNOPAQUE)
 
#define WithCrypto   (APPLICATION_PGP | APPLICATION_SMIME)
 
#define KEYFLAG_NO_FLAGS   0
 No flags are set.
 
#define KEYFLAG_CANSIGN   (1 << 0)
 Key is suitable for signing.
 
#define KEYFLAG_CANENCRYPT   (1 << 1)
 Key is suitable for encryption.
 
#define KEYFLAG_ISX509   (1 << 2)
 Key is an X.509 key.
 
#define KEYFLAG_SECRET   (1 << 7)
 Key is a secret key.
 
#define KEYFLAG_EXPIRED   (1 << 8)
 Key is expired.
 
#define KEYFLAG_REVOKED   (1 << 9)
 Key is revoked.
 
#define KEYFLAG_DISABLED   (1 << 10)
 Key is marked disabled.
 
#define KEYFLAG_SUBKEY   (1 << 11)
 Key is a subkey.
 
#define KEYFLAG_CRITICAL   (1 << 12)
 Key is marked critical.
 
#define KEYFLAG_PREFER_ENCRYPTION   (1 << 13)
 Key's owner prefers encryption.
 
#define KEYFLAG_PREFER_SIGNING   (1 << 14)
 Key's owner prefers signing.
 
#define KEYFLAG_CANTUSE   (KEYFLAG_DISABLED | KEYFLAG_REVOKED | KEYFLAG_EXPIRED)
 
#define KEYFLAG_RESTRICTIONS   (KEYFLAG_CANTUSE | KEYFLAG_CRITICAL)
 
#define KEYFLAG_ABILITIES   (KEYFLAG_CANSIGN | KEYFLAG_CANENCRYPT | KEYFLAG_PREFER_ENCRYPTION | KEYFLAG_PREFER_SIGNING)
 

Typedefs

typedef uint16_t SecurityFlags
 Flags, e.g. SEC_ENCRYPT.
 
typedef uint16_t KeyFlags
 Flags describing PGP/SMIME keys, e.g. KEYFLAG_CANSIGN.
 

Functions

void crypt_extract_keys_from_messages (struct Mailbox *m, struct EmailArray *ea)
 Extract keys from a message.
 
void crypt_forget_passphrase (void)
 Forget a passphrase and display a message.
 
int crypt_get_keys (struct Email *e, char **keylist, bool oppenc_mode)
 Check we have all the keys we need.
 
void crypt_opportunistic_encrypt (struct Email *e)
 Can all recipients be determined.
 
SecurityFlags crypt_query (struct Body *b)
 Check out the type of encryption used.
 
bool crypt_valid_passphrase (SecurityFlags flags)
 Check that we have a usable passphrase, ask if not.
 
SecurityFlags mutt_is_application_pgp (struct Body *b)
 Does the message use PGP?
 
SecurityFlags mutt_is_application_smime (struct Body *b)
 Does the message use S/MIME?
 
SecurityFlags mutt_is_malformed_multipart_pgp_encrypted (struct Body *b)
 Check for malformed layout.
 
SecurityFlags mutt_is_multipart_encrypted (struct Body *b)
 Does the message have encrypted parts?
 
SecurityFlags mutt_is_multipart_signed (struct Body *b)
 Is a message signed?
 
int mutt_is_valid_multipart_pgp_encrypted (struct Body *b)
 Is this a valid multi-part encrypted message?
 
int mutt_protected_headers_handler (struct Body *b, struct State *state)
 Process a protected header - Implements handler_t -.
 
int mutt_protect (struct Email *e, char *keylist, bool postpone)
 Encrypt and/or sign a message.
 
bool mutt_should_hide_protected_subject (struct Email *e)
 Should NeoMutt hide the protected subject?
 
int mutt_signed_handler (struct Body *b, struct State *state)
 Verify a "multipart/signed" body - Implements handler_t -.
 
void crypt_cleanup (void)
 Clean up backend.
 
bool crypt_has_module_backend (SecurityFlags type)
 Is there a crypto backend for a given type?
 
void crypt_init (void)
 Initialise the crypto backends.
 
void crypt_invoke_message (SecurityFlags type)
 Display an informative message.
 
int crypt_pgp_application_handler (struct Body *m, struct State *state)
 Wrapper for CryptModuleSpecs::application_handler() - Implements handler_t -.
 
bool crypt_pgp_check_traditional (FILE *fp, struct Body *b, bool just_one)
 Wrapper for CryptModuleSpecs::pgp_check_traditional()
 
int crypt_pgp_decrypt_mime (FILE *fp_in, FILE **fp_out, struct Body *b, struct Body **cur)
 Wrapper for CryptModuleSpecs::decrypt_mime()
 
int crypt_pgp_encrypted_handler (struct Body *a, struct State *state)
 Wrapper for CryptModuleSpecs::encrypted_handler() - Implements handler_t -.
 
void crypt_pgp_extract_key_from_attachment (FILE *fp, struct Body *top)
 Wrapper for CryptModuleSpecs::pgp_extract_key_from_attachment()
 
void crypt_pgp_invoke_getkeys (struct Address *addr)
 Wrapper for CryptModuleSpecs::pgp_invoke_getkeys()
 
struct Bodycrypt_pgp_make_key_attachment (void)
 Wrapper for CryptModuleSpecs::pgp_make_key_attachment()
 
SecurityFlags crypt_pgp_send_menu (struct Email *e)
 Wrapper for CryptModuleSpecs::send_menu()
 
int crypt_smime_application_handler (struct Body *m, struct State *state)
 Wrapper for CryptModuleSpecs::application_handler() - Implements handler_t -.
 
int crypt_smime_decrypt_mime (FILE *fp_in, FILE **fp_out, struct Body *b, struct Body **cur)
 Wrapper for CryptModuleSpecs::decrypt_mime()
 
void crypt_smime_getkeys (struct Envelope *env)
 Wrapper for CryptModuleSpecs::smime_getkeys()
 
SecurityFlags crypt_smime_send_menu (struct Email *e)
 Wrapper for CryptModuleSpecs::send_menu()
 
int crypt_smime_verify_sender (struct Email *e, struct Message *msg)
 Wrapper for CryptModuleSpecs::smime_verify_sender()
 
void crypto_module_cleanup (void)
 Clean up the crypto modules.
 
void pgp_gpgme_init (void)
 Implements CryptModuleSpecs::init() -.
 
int mutt_gpgme_select_secret_key (struct Buffer *keyid)
 Select a private Autocrypt key for a new account.
 
const char * mutt_gpgme_print_version (void)
 Get version of GPGME.
 

Detailed Description

API for encryption/signing of emails.

Authors
  • Werner Koch
  • g10code GmbH
  • Pietro Cerutti

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Definition in file lib.h.

Macro Definition Documentation

◆ SEC_NO_FLAGS

#define SEC_NO_FLAGS   0

No flags are set.

Definition at line 78 of file lib.h.

◆ SEC_ENCRYPT

#define SEC_ENCRYPT   (1 << 0)

Email is encrypted.

Definition at line 79 of file lib.h.

◆ SEC_SIGN

#define SEC_SIGN   (1 << 1)

Email is signed.

Definition at line 80 of file lib.h.

◆ SEC_GOODSIGN

#define SEC_GOODSIGN   (1 << 2)

Email has a valid signature.

Definition at line 81 of file lib.h.

◆ SEC_BADSIGN

#define SEC_BADSIGN   (1 << 3)

Email has a bad signature.

Definition at line 82 of file lib.h.

◆ SEC_PARTSIGN

#define SEC_PARTSIGN   (1 << 4)

Not all parts of the email is signed.

Definition at line 83 of file lib.h.

◆ SEC_SIGNOPAQUE

#define SEC_SIGNOPAQUE   (1 << 5)

Email has an opaque signature (encrypted)

Definition at line 84 of file lib.h.

◆ SEC_KEYBLOCK

#define SEC_KEYBLOCK   (1 << 6)

Email has a key attached.

Definition at line 85 of file lib.h.

◆ SEC_INLINE

#define SEC_INLINE   (1 << 7)

Email has an inline signature.

Definition at line 86 of file lib.h.

◆ SEC_OPPENCRYPT

#define SEC_OPPENCRYPT   (1 << 8)

Opportunistic encrypt mode.

Definition at line 87 of file lib.h.

◆ SEC_AUTOCRYPT

#define SEC_AUTOCRYPT   (1 << 9)

(Autocrypt) Message will be, or was Autocrypt encrypt+signed

Definition at line 88 of file lib.h.

◆ SEC_AUTOCRYPT_OVERRIDE

#define SEC_AUTOCRYPT_OVERRIDE   (1 << 10)

(Autocrypt) Indicates manual set/unset of encryption

Definition at line 89 of file lib.h.

◆ APPLICATION_PGP

#define APPLICATION_PGP   (1 << 11)

Use PGP to encrypt/sign.

Definition at line 91 of file lib.h.

◆ APPLICATION_SMIME

#define APPLICATION_SMIME   (1 << 12)

Use SMIME to encrypt/sign.

Definition at line 92 of file lib.h.

◆ PGP_TRADITIONAL_CHECKED

#define PGP_TRADITIONAL_CHECKED   (1 << 13)

Email has a traditional (inline) signature.

Definition at line 93 of file lib.h.

◆ SEC_ALL_FLAGS

#define SEC_ALL_FLAGS   ((1 << 14) - 1)

Definition at line 95 of file lib.h.

◆ PGP_ENCRYPT

#define PGP_ENCRYPT   (APPLICATION_PGP | SEC_ENCRYPT)

Definition at line 97 of file lib.h.

◆ PGP_SIGN

#define PGP_SIGN   (APPLICATION_PGP | SEC_SIGN)

Definition at line 98 of file lib.h.

◆ PGP_GOODSIGN

#define PGP_GOODSIGN   (APPLICATION_PGP | SEC_GOODSIGN)

Definition at line 99 of file lib.h.

◆ PGP_KEY

#define PGP_KEY   (APPLICATION_PGP | SEC_KEYBLOCK)

Definition at line 100 of file lib.h.

◆ PGP_INLINE

#define PGP_INLINE   (APPLICATION_PGP | SEC_INLINE)

Definition at line 101 of file lib.h.

◆ SMIME_ENCRYPT

#define SMIME_ENCRYPT   (APPLICATION_SMIME | SEC_ENCRYPT)

Definition at line 103 of file lib.h.

◆ SMIME_SIGN

#define SMIME_SIGN   (APPLICATION_SMIME | SEC_SIGN)

Definition at line 104 of file lib.h.

◆ SMIME_GOODSIGN

#define SMIME_GOODSIGN   (APPLICATION_SMIME | SEC_GOODSIGN)

Definition at line 105 of file lib.h.

◆ SMIME_BADSIGN

#define SMIME_BADSIGN   (APPLICATION_SMIME | SEC_BADSIGN)

Definition at line 106 of file lib.h.

◆ SMIME_OPAQUE

#define SMIME_OPAQUE   (APPLICATION_SMIME | SEC_SIGNOPAQUE)

Definition at line 107 of file lib.h.

◆ WithCrypto

#define WithCrypto   (APPLICATION_PGP | APPLICATION_SMIME)

Definition at line 117 of file lib.h.

◆ KEYFLAG_NO_FLAGS

#define KEYFLAG_NO_FLAGS   0

No flags are set.

Definition at line 127 of file lib.h.

◆ KEYFLAG_CANSIGN

#define KEYFLAG_CANSIGN   (1 << 0)

Key is suitable for signing.

Definition at line 128 of file lib.h.

◆ KEYFLAG_CANENCRYPT

#define KEYFLAG_CANENCRYPT   (1 << 1)

Key is suitable for encryption.

Definition at line 129 of file lib.h.

◆ KEYFLAG_ISX509

#define KEYFLAG_ISX509   (1 << 2)

Key is an X.509 key.

Definition at line 130 of file lib.h.

◆ KEYFLAG_SECRET

#define KEYFLAG_SECRET   (1 << 7)

Key is a secret key.

Definition at line 131 of file lib.h.

◆ KEYFLAG_EXPIRED

#define KEYFLAG_EXPIRED   (1 << 8)

Key is expired.

Definition at line 132 of file lib.h.

◆ KEYFLAG_REVOKED

#define KEYFLAG_REVOKED   (1 << 9)

Key is revoked.

Definition at line 133 of file lib.h.

◆ KEYFLAG_DISABLED

#define KEYFLAG_DISABLED   (1 << 10)

Key is marked disabled.

Definition at line 134 of file lib.h.

◆ KEYFLAG_SUBKEY

#define KEYFLAG_SUBKEY   (1 << 11)

Key is a subkey.

Definition at line 135 of file lib.h.

◆ KEYFLAG_CRITICAL

#define KEYFLAG_CRITICAL   (1 << 12)

Key is marked critical.

Definition at line 136 of file lib.h.

◆ KEYFLAG_PREFER_ENCRYPTION

#define KEYFLAG_PREFER_ENCRYPTION   (1 << 13)

Key's owner prefers encryption.

Definition at line 137 of file lib.h.

◆ KEYFLAG_PREFER_SIGNING

#define KEYFLAG_PREFER_SIGNING   (1 << 14)

Key's owner prefers signing.

Definition at line 138 of file lib.h.

◆ KEYFLAG_CANTUSE

#define KEYFLAG_CANTUSE   (KEYFLAG_DISABLED | KEYFLAG_REVOKED | KEYFLAG_EXPIRED)

Definition at line 140 of file lib.h.

◆ KEYFLAG_RESTRICTIONS

#define KEYFLAG_RESTRICTIONS   (KEYFLAG_CANTUSE | KEYFLAG_CRITICAL)

Definition at line 141 of file lib.h.

◆ KEYFLAG_ABILITIES

Definition at line 143 of file lib.h.

Typedef Documentation

◆ SecurityFlags

typedef uint16_t SecurityFlags

Flags, e.g. SEC_ENCRYPT.

Definition at line 77 of file lib.h.

◆ KeyFlags

typedef uint16_t KeyFlags

Flags describing PGP/SMIME keys, e.g. KEYFLAG_CANSIGN.

Definition at line 126 of file lib.h.

Function Documentation

◆ crypt_extract_keys_from_messages()

void crypt_extract_keys_from_messages ( struct Mailbox m,
struct EmailArray *  ea 
)

Extract keys from a message.

Parameters
mMailbox
eaArray of Emails to process

The extracted keys will be added to the user's keyring.

Definition at line 847 of file crypt.c.

848{
849 if (!WithCrypto)
850 return;
851
852 struct Buffer *tempfname = buf_pool_get();
853 buf_mktemp(tempfname);
854 FILE *fp_out = mutt_file_fopen(buf_string(tempfname), "w");
855 if (!fp_out)
856 {
857 mutt_perror("%s", buf_string(tempfname));
858 goto cleanup;
859 }
860
863
864 struct Email **ep = NULL;
865 ARRAY_FOREACH(ep, ea)
866 {
867 struct Email *e = *ep;
868 struct Message *msg = mx_msg_open(m, e);
869 if (!msg)
870 {
871 continue;
872 }
875 {
876 mx_msg_close(m, &msg);
877 mutt_file_fclose(&fp_out);
878 break;
879 }
880
881 if (((WithCrypto & APPLICATION_PGP) != 0) && (e->security & APPLICATION_PGP))
882 {
884 fflush(fp_out);
885
886 mutt_endwin();
887 puts(_("Trying to extract PGP keys...\n"));
889 }
890
892 {
893 const bool encrypt = e->security & SEC_ENCRYPT;
894 mutt_copy_message(fp_out, e, msg,
897 CH_NO_FLAGS, 0);
898 fflush(fp_out);
899
900 const char *mbox = NULL;
901 if (!TAILQ_EMPTY(&e->env->from))
902 {
904 mbox = buf_string(TAILQ_FIRST(&e->env->from)->mailbox);
905 }
906 else if (!TAILQ_EMPTY(&e->env->sender))
907 {
909 mbox = buf_string(TAILQ_FIRST(&e->env->sender)->mailbox);
910 }
911 if (mbox)
912 {
913 mutt_endwin();
914 puts(_("Trying to extract S/MIME certificates..."));
915 crypt_smime_invoke_import(buf_string(tempfname), mbox);
916 }
917 }
918 mx_msg_close(m, &msg);
919
920 rewind(fp_out);
921 }
922
923 mutt_file_fclose(&fp_out);
924 if (isendwin())
926
927 mutt_file_unlink(buf_string(tempfname));
928
930 OptDontHandlePgpKeys = false;
931
932cleanup:
933 buf_pool_release(&tempfname);
934}
void mutt_expand_aliases(struct AddressList *al)
Expand aliases in a List of Addresses.
Definition: alias.c:298
#define ARRAY_FOREACH(elem, head)
Iterate over all elements of the array.
Definition: array.h:211
void mutt_parse_mime_message(struct Email *e, FILE *fp)
Parse a MIME email.
Definition: attachments.c:596
static const char * buf_string(const struct Buffer *buf)
Convert a buffer to a const char * "string".
Definition: buffer.h:93
int mutt_copy_message(FILE *fp_out, struct Email *e, struct Message *msg, CopyMessageFlags cmflags, CopyHeaderFlags chflags, int wraplen)
Copy a message from a Mailbox.
Definition: copy.c:884
#define MUTT_CM_DECODE
Decode the message body into text/plain.
Definition: copy.h:38
#define MUTT_CM_CHARCONV
Perform character set conversions.
Definition: copy.h:42
#define MUTT_CM_DECODE_SMIME
Used for decoding S/MIME messages.
Definition: copy.h:46
#define MUTT_CM_NO_FLAGS
No flags are set.
Definition: copy.h:35
#define MUTT_CM_DECODE_CRYPT
Definition: copy.h:48
#define MUTT_CM_NOHEADER
Don't copy the message header.
Definition: copy.h:36
#define CH_NO_FLAGS
No flags are set.
Definition: copy.h:51
bool crypt_valid_passphrase(SecurityFlags flags)
Check that we have a usable passphrase, ask if not.
Definition: crypt.c:135
void crypt_pgp_invoke_import(const char *fname)
Wrapper for CryptModuleSpecs::pgp_invoke_import()
Definition: cryptglue.c:364
void crypt_smime_invoke_import(const char *infile, const char *mailbox)
Wrapper for CryptModuleSpecs::smime_invoke_import()
Definition: cryptglue.c:508
int mutt_any_key_to_continue(const char *s)
Prompt the user to 'press any key' and wait.
Definition: curs_lib.c:188
void mutt_endwin(void)
Shutdown curses.
Definition: curs_lib.c:154
FILE * mutt_file_fopen(const char *path, const char *mode)
Call fopen() safely.
Definition: file.c:636
int mutt_file_fclose(FILE **fp)
Close a FILE handle (and NULL the pointer)
Definition: file.c:152
void mutt_file_unlink(const char *s)
Delete a file, carefully.
Definition: file.c:196
bool OptDontHandlePgpKeys
(pseudo) used to extract PGP keys
Definition: globals.c:69
#define mutt_perror(...)
Definition: logging2.h:93
#define _(a)
Definition: message.h:28
int mx_msg_close(struct Mailbox *m, struct Message **ptr)
Close a message.
Definition: mx.c:1206
struct Message * mx_msg_open(struct Mailbox *m, struct Email *e)
Return a stream pointer for a message.
Definition: mx.c:1160
#define APPLICATION_PGP
Use PGP to encrypt/sign.
Definition: lib.h:91
#define APPLICATION_SMIME
Use SMIME to encrypt/sign.
Definition: lib.h:92
#define SEC_ENCRYPT
Email is encrypted.
Definition: lib.h:79
#define WithCrypto
Definition: lib.h:117
struct Buffer * buf_pool_get(void)
Get a Buffer from the pool.
Definition: pool.c:81
void buf_pool_release(struct Buffer **ptr)
Return a Buffer to the pool.
Definition: pool.c:94
#define TAILQ_FIRST(head)
Definition: queue.h:723
#define TAILQ_EMPTY(head)
Definition: queue.h:721
String manipulation buffer.
Definition: buffer.h:34
The envelope/body of an email.
Definition: email.h:37
struct Envelope * env
Envelope information.
Definition: email.h:66
SecurityFlags security
bit 0-10: flags, bit 11,12: application, bit 13: traditional pgp See: ncrypt/lib.h pgplib....
Definition: email.h:41
struct AddressList sender
Email's sender.
Definition: envelope.h:63
struct AddressList from
Email's 'From' list.
Definition: envelope.h:59
A local copy of an email.
Definition: message.h:34
FILE * fp
pointer to the message data
Definition: message.h:35
#define buf_mktemp(buf)
Definition: tmp.h:33
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◆ crypt_forget_passphrase()

void crypt_forget_passphrase ( void  )

Forget a passphrase and display a message.

Definition at line 93 of file crypt.c.

94{
97
100
101 if (WithCrypto)
102 {
103 /* L10N: Due to the implementation details (e.g. some passwords are managed
104 by gpg-agent) we can't know whether we forgot zero, 1, 12, ...
105 passwords. So in English we use "Passphrases". Your language might
106 have other means to express this. */
107 mutt_message(_("Passphrases forgotten"));
108 }
109}
void crypt_smime_void_passphrase(void)
Wrapper for CryptModuleSpecs::void_passphrase()
Definition: cryptglue.c:413
void crypt_pgp_void_passphrase(void)
Wrapper for CryptModuleSpecs::void_passphrase()
Definition: cryptglue.c:191
#define mutt_message(...)
Definition: logging2.h:91
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◆ crypt_get_keys()

int crypt_get_keys ( struct Email e,
char **  keylist,
bool  oppenc_mode 
)

Check we have all the keys we need.

Parameters
[in]eEmail with addresses to match
[out]keylistKeys needed
[in]oppenc_modeIf true, use opportunistic encryption
Return values
0Success
-1Error

Do a quick check to make sure that we can find all of the encryption keys if the user has requested this service. Return the list of keys in KEYLIST. If oppenc_mode is true, only keys that can be determined without prompting will be used.

Definition at line 950 of file crypt.c.

951{
952 if (!WithCrypto)
953 return 0;
954
955 struct AddressList addrlist = TAILQ_HEAD_INITIALIZER(addrlist);
956 const char *fqdn = mutt_fqdn(true, NeoMutt->sub);
957 const char *self_encrypt = NULL;
958
959 /* Do a quick check to make sure that we can find all of the encryption
960 * keys if the user has requested this service. */
961
962 *keylist = NULL;
963
964#ifdef USE_AUTOCRYPT
965 if (!oppenc_mode && (e->security & SEC_AUTOCRYPT))
966 {
968 return -1;
969 return 0;
970 }
971#endif
972
974 OptPgpCheckTrust = true;
975
976 mutt_addrlist_copy(&addrlist, &e->env->to, false);
977 mutt_addrlist_copy(&addrlist, &e->env->cc, false);
978 mutt_addrlist_copy(&addrlist, &e->env->bcc, false);
979 mutt_addrlist_qualify(&addrlist, fqdn);
980 mutt_addrlist_dedupe(&addrlist);
981
982 if (oppenc_mode || (e->security & SEC_ENCRYPT))
983 {
984 if (((WithCrypto & APPLICATION_PGP) != 0) && (e->security & APPLICATION_PGP))
985 {
986 *keylist = crypt_pgp_find_keys(&addrlist, oppenc_mode);
987 if (!*keylist)
988 {
989 mutt_addrlist_clear(&addrlist);
990 return -1;
991 }
992 OptPgpCheckTrust = false;
993 const bool c_pgp_self_encrypt = cs_subset_bool(NeoMutt->sub, "pgp_self_encrypt");
994 const char *const c_pgp_default_key = cs_subset_string(NeoMutt->sub, "pgp_default_key");
995 const enum QuadOption c_pgp_encrypt_self = cs_subset_quad(NeoMutt->sub, "pgp_encrypt_self");
996 if (c_pgp_self_encrypt || (c_pgp_encrypt_self == MUTT_YES))
997 self_encrypt = c_pgp_default_key;
998 }
1000 {
1001 *keylist = crypt_smime_find_keys(&addrlist, oppenc_mode);
1002 if (!*keylist)
1003 {
1004 mutt_addrlist_clear(&addrlist);
1005 return -1;
1006 }
1007 const bool c_smime_self_encrypt = cs_subset_bool(NeoMutt->sub, "smime_self_encrypt");
1008 const char *const c_smime_default_key = cs_subset_string(NeoMutt->sub, "smime_default_key");
1009 const enum QuadOption c_smime_encrypt_self = cs_subset_quad(NeoMutt->sub, "smime_encrypt_self");
1010 if (c_smime_self_encrypt || (c_smime_encrypt_self == MUTT_YES))
1011 self_encrypt = c_smime_default_key;
1012 }
1013 }
1014
1015 if (!oppenc_mode && self_encrypt)
1016 {
1017 const size_t keylist_size = mutt_str_len(*keylist);
1018 mutt_mem_realloc(keylist, keylist_size + mutt_str_len(self_encrypt) + 2);
1019 sprintf(*keylist + keylist_size, " %s", self_encrypt);
1020 }
1021
1022 mutt_addrlist_clear(&addrlist);
1023
1024 return 0;
1025}
void mutt_addrlist_copy(struct AddressList *dst, const struct AddressList *src, bool prune)
Copy a list of addresses into another list.
Definition: address.c:762
void mutt_addrlist_qualify(struct AddressList *al, const char *host)
Expand local names in an Address list using a hostname.
Definition: address.c:677
void mutt_addrlist_clear(struct AddressList *al)
Unlink and free all Address in an AddressList.
Definition: address.c:1461
void mutt_addrlist_dedupe(struct AddressList *al)
Remove duplicate addresses.
Definition: address.c:1398
@ AUTOCRYPT_REC_NO
Do no use Autocrypt.
Definition: lib.h:159
enum AutocryptRec mutt_autocrypt_ui_recommendation(const struct Email *e, char **keylist)
Get the recommended action for an Email.
Definition: autocrypt.c:558
const char * cs_subset_string(const struct ConfigSubset *sub, const char *name)
Get a string config item by name.
Definition: helpers.c:292
enum QuadOption cs_subset_quad(const struct ConfigSubset *sub, const char *name)
Get a quad-value config item by name.
Definition: helpers.c:193
bool cs_subset_bool(const struct ConfigSubset *sub, const char *name)
Get a boolean config item by name.
Definition: helpers.c:48
char * crypt_smime_find_keys(struct AddressList *addrlist, bool oppenc_mode)
Wrapper for CryptModuleSpecs::find_keys()
Definition: cryptglue.c:475
char * crypt_pgp_find_keys(struct AddressList *addrlist, bool oppenc_mode)
Wrapper for CryptModuleSpecs::find_keys()
Definition: cryptglue.c:316
bool OptPgpCheckTrust
(pseudo) used by dlg_pgp()
Definition: globals.c:80
void mutt_mem_realloc(void *ptr, size_t size)
Resize a block of memory on the heap.
Definition: memory.c:114
size_t mutt_str_len(const char *a)
Calculate the length of a string, safely.
Definition: string.c:568
#define SEC_AUTOCRYPT
(Autocrypt) Message will be, or was Autocrypt encrypt+signed
Definition: lib.h:88
QuadOption
Possible values for a quad-option.
Definition: quad.h:36
@ MUTT_YES
User answered 'Yes', or assume 'Yes'.
Definition: quad.h:39
#define TAILQ_HEAD_INITIALIZER(head)
Definition: queue.h:637
const char * mutt_fqdn(bool may_hide_host, const struct ConfigSubset *sub)
Get the Fully-Qualified Domain Name.
Definition: sendlib.c:705
struct AddressList to
Email's 'To' list.
Definition: envelope.h:60
struct AddressList cc
Email's 'Cc' list.
Definition: envelope.h:61
struct AddressList bcc
Email's 'Bcc' list.
Definition: envelope.h:62
Container for Accounts, Notifications.
Definition: neomutt.h:41
struct ConfigSubset * sub
Inherited config items.
Definition: neomutt.h:45
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◆ crypt_opportunistic_encrypt()

void crypt_opportunistic_encrypt ( struct Email e)

Can all recipients be determined.

Parameters
eEmail

Check if all recipients keys can be automatically determined. Enable encryption if they can, otherwise disable encryption.

Definition at line 1034 of file crypt.c.

1035{
1036 if (!WithCrypto)
1037 return;
1038
1039 const bool c_crypt_opportunistic_encrypt = cs_subset_bool(NeoMutt->sub, "crypt_opportunistic_encrypt");
1040 if (!(c_crypt_opportunistic_encrypt && (e->security & SEC_OPPENCRYPT)))
1041 return;
1042
1043 char *pgpkeylist = NULL;
1044
1045 crypt_get_keys(e, &pgpkeylist, 1);
1046 if (pgpkeylist)
1047 {
1048 e->security |= SEC_ENCRYPT;
1049 FREE(&pgpkeylist);
1050 }
1051 else
1052 {
1053 e->security &= ~SEC_ENCRYPT;
1054 }
1055}
int crypt_get_keys(struct Email *e, char **keylist, bool oppenc_mode)
Check we have all the keys we need.
Definition: crypt.c:950
#define FREE(x)
Definition: memory.h:45
#define SEC_OPPENCRYPT
Opportunistic encrypt mode.
Definition: lib.h:87
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◆ crypt_query()

SecurityFlags crypt_query ( struct Body b)

Check out the type of encryption used.

Parameters
bBody of email
Return values
numFlags, see SecurityFlags
0Error (SEC_NO_FLAGS)

Set the cached status values if there are any.

Definition at line 676 of file crypt.c.

677{
678 if (!WithCrypto || !b)
679 return SEC_NO_FLAGS;
680
682
683 if (b->type == TYPE_APPLICATION)
684 {
687
689 {
691 if (rc && b->goodsig)
692 rc |= SEC_GOODSIGN;
693 if (rc && b->badsig)
694 rc |= SEC_BADSIGN;
695 }
696 }
697 else if (((WithCrypto & APPLICATION_PGP) != 0) && (b->type == TYPE_TEXT))
698 {
700 if (rc && b->goodsig)
701 rc |= SEC_GOODSIGN;
702 }
703
704 if (b->type == TYPE_MULTIPART)
705 {
709
710 if (rc && b->goodsig)
711 rc |= SEC_GOODSIGN;
712#ifdef USE_AUTOCRYPT
713 if (rc && b->is_autocrypt)
714 rc |= SEC_AUTOCRYPT;
715#endif
716 }
717
718 if ((b->type == TYPE_MULTIPART) || (b->type == TYPE_MESSAGE))
719 {
720 SecurityFlags u = b->parts ? SEC_ALL_FLAGS : SEC_NO_FLAGS; /* Bits set in all parts */
721 SecurityFlags w = SEC_NO_FLAGS; /* Bits set in any part */
722
723 for (b = b->parts; b; b = b->next)
724 {
725 const SecurityFlags v = crypt_query(b);
726 u &= v;
727 w |= v;
728 }
729 rc |= u | (w & ~SEC_GOODSIGN);
730
731 if ((w & SEC_GOODSIGN) && !(u & SEC_GOODSIGN))
732 rc |= SEC_PARTSIGN;
733 }
734
735 return rc;
736}
SecurityFlags mutt_is_application_pgp(struct Body *b)
Does the message use PGP?
Definition: crypt.c:537
SecurityFlags mutt_is_multipart_signed(struct Body *b)
Is a message signed?
Definition: crypt.c:397
SecurityFlags mutt_is_application_smime(struct Body *b)
Does the message use S/MIME?
Definition: crypt.c:598
SecurityFlags mutt_is_multipart_encrypted(struct Body *b)
Does the message have encrypted parts?
Definition: crypt.c:432
SecurityFlags mutt_is_malformed_multipart_pgp_encrypted(struct Body *b)
Check for malformed layout.
Definition: crypt.c:493
SecurityFlags crypt_query(struct Body *b)
Check out the type of encryption used.
Definition: crypt.c:676
@ TYPE_MESSAGE
Type: 'message/*'.
Definition: mime.h:35
@ TYPE_MULTIPART
Type: 'multipart/*'.
Definition: mime.h:37
@ TYPE_APPLICATION
Type: 'application/*'.
Definition: mime.h:33
@ TYPE_TEXT
Type: 'text/*'.
Definition: mime.h:38
uint16_t SecurityFlags
Flags, e.g. SEC_ENCRYPT.
Definition: lib.h:77
#define SEC_ALL_FLAGS
Definition: lib.h:95
#define SEC_GOODSIGN
Email has a valid signature.
Definition: lib.h:81
#define SEC_BADSIGN
Email has a bad signature.
Definition: lib.h:82
#define SEC_NO_FLAGS
No flags are set.
Definition: lib.h:78
#define SEC_PARTSIGN
Not all parts of the email is signed.
Definition: lib.h:83
struct Body * parts
parts of a multipart or message/rfc822
Definition: body.h:72
bool badsig
Bad cryptographic signature (needed to check encrypted s/mime-signatures)
Definition: body.h:43
bool is_autocrypt
Flag autocrypt-decrypted messages for replying.
Definition: body.h:50
struct Body * next
next attachment in the list
Definition: body.h:71
bool goodsig
Good cryptographic signature.
Definition: body.h:45
unsigned int type
content-type primary type, ContentType
Definition: body.h:40
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◆ crypt_valid_passphrase()

bool crypt_valid_passphrase ( SecurityFlags  flags)

Check that we have a usable passphrase, ask if not.

Parameters
flagsFlags, see SecurityFlags
Return values
trueSuccess
falseFailed

Definition at line 135 of file crypt.c.

136{
137 bool rc = false;
138
139#ifndef DEBUG
140 disable_coredumps();
141#endif
142
143 if (((WithCrypto & APPLICATION_PGP) != 0) && (flags & APPLICATION_PGP))
145
146 if (((WithCrypto & APPLICATION_SMIME) != 0) && (flags & APPLICATION_SMIME))
148
149 return rc;
150}
bool crypt_smime_valid_passphrase(void)
Wrapper for CryptModuleSpecs::valid_passphrase()
Definition: cryptglue.c:422
bool crypt_pgp_valid_passphrase(void)
Wrapper for CryptModuleSpecs::valid_passphrase()
Definition: cryptglue.c:200
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◆ mutt_is_application_pgp()

SecurityFlags mutt_is_application_pgp ( struct Body b)

Does the message use PGP?

Parameters
bBody of email
Return values
>0Message uses PGP, e.g. PGP_ENCRYPT
0Message doesn't use PGP, (SEC_NO_FLAGS)

Definition at line 537 of file crypt.c.

538{
540 char *p = NULL;
541
542 if (b->type == TYPE_APPLICATION)
543 {
544 if (mutt_istr_equal(b->subtype, "pgp") || mutt_istr_equal(b->subtype, "x-pgp-message"))
545 {
546 p = mutt_param_get(&b->parameter, "x-action");
547 if (p && (mutt_istr_equal(p, "sign") || mutt_istr_equal(p, "signclear")))
548 {
549 t |= PGP_SIGN;
550 }
551
552 p = mutt_param_get(&b->parameter, "format");
553 if (p && mutt_istr_equal(p, "keys-only"))
554 {
555 t |= PGP_KEY;
556 }
557
558 if (t == SEC_NO_FLAGS)
559 t |= PGP_ENCRYPT; /* not necessarily correct, but... */
560 }
561
562 if (mutt_istr_equal(b->subtype, "pgp-signed"))
563 t |= PGP_SIGN;
564
565 if (mutt_istr_equal(b->subtype, "pgp-keys"))
566 t |= PGP_KEY;
567 }
568 else if ((b->type == TYPE_TEXT) && mutt_istr_equal("plain", b->subtype))
569 {
570 if (((p = mutt_param_get(&b->parameter, "x-mutt-action")) ||
571 (p = mutt_param_get(&b->parameter, "x-action")) ||
572 (p = mutt_param_get(&b->parameter, "action"))) &&
573 mutt_istr_startswith(p, "pgp-sign"))
574 {
575 t |= PGP_SIGN;
576 }
577 else if (p && mutt_istr_startswith(p, "pgp-encrypt"))
578 {
579 t |= PGP_ENCRYPT;
580 }
581 else if (p && mutt_istr_startswith(p, "pgp-keys"))
582 {
583 t |= PGP_KEY;
584 }
585 }
586 if (t)
587 t |= PGP_INLINE;
588
589 return t;
590}
bool mutt_istr_equal(const char *a, const char *b)
Compare two strings, ignoring case.
Definition: string.c:810
size_t mutt_istr_startswith(const char *str, const char *prefix)
Check whether a string starts with a prefix, ignoring case.
Definition: string.c:240
#define PGP_SIGN
Definition: lib.h:98
#define PGP_ENCRYPT
Definition: lib.h:97
#define PGP_INLINE
Definition: lib.h:101
#define PGP_KEY
Definition: lib.h:100
char * mutt_param_get(const struct ParameterList *pl, const char *s)
Find a matching Parameter.
Definition: parameter.c:84
struct ParameterList parameter
Parameters of the content-type.
Definition: body.h:62
char * subtype
content-type subtype
Definition: body.h:60
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◆ mutt_is_application_smime()

SecurityFlags mutt_is_application_smime ( struct Body b)

Does the message use S/MIME?

Parameters
bBody of email
Return values
>0Message uses S/MIME, e.g. SMIME_ENCRYPT
0Message doesn't use S/MIME, (SEC_NO_FLAGS)

Definition at line 598 of file crypt.c.

599{
600 if (!b)
601 return SEC_NO_FLAGS;
602
603 if (((b->type & TYPE_APPLICATION) == 0) || !b->subtype)
604 return SEC_NO_FLAGS;
605
606 char *t = NULL;
607 bool complain = false;
608 /* S/MIME MIME types don't need x- anymore, see RFC2311 */
609 if (mutt_istr_equal(b->subtype, "x-pkcs7-mime") || mutt_istr_equal(b->subtype, "pkcs7-mime"))
610 {
611 t = mutt_param_get(&b->parameter, "smime-type");
612 if (t)
613 {
614 if (mutt_istr_equal(t, "enveloped-data"))
615 return SMIME_ENCRYPT;
616 if (mutt_istr_equal(t, "signed-data"))
617 return SMIME_SIGN | SMIME_OPAQUE;
618 return SEC_NO_FLAGS;
619 }
620 /* Netscape 4.7 uses
621 * Content-Description: S/MIME Encrypted Message
622 * instead of Content-Type parameter */
623 if (mutt_istr_equal(b->description, "S/MIME Encrypted Message"))
624 return SMIME_ENCRYPT;
625 complain = true;
626 }
627 else if (!mutt_istr_equal(b->subtype, "octet-stream"))
628 {
629 return SEC_NO_FLAGS;
630 }
631
632 t = mutt_param_get(&b->parameter, "name");
633
634 if (!t)
635 t = b->d_filename;
636 if (!t)
637 t = b->filename;
638 if (!t)
639 {
640 if (complain)
641 {
642 mutt_message(_("S/MIME messages with no hints on content are unsupported"));
643 }
644 return SEC_NO_FLAGS;
645 }
646
647 /* no .p7c, .p10 support yet. */
648
649 int len = mutt_str_len(t) - 4;
650 if ((len > 0) && (*(t + len) == '.'))
651 {
652 len++;
653 if (mutt_istr_equal((t + len), "p7m"))
654 {
655 /* Not sure if this is the correct thing to do, but
656 * it's required for compatibility with Outlook */
657 return SMIME_SIGN | SMIME_OPAQUE;
658 }
659 else if (mutt_istr_equal((t + len), "p7s"))
660 {
661 return SMIME_SIGN | SMIME_OPAQUE;
662 }
663 }
664
665 return SEC_NO_FLAGS;
666}
#define SMIME_SIGN
Definition: lib.h:104
#define SMIME_OPAQUE
Definition: lib.h:107
#define SMIME_ENCRYPT
Definition: lib.h:103
char * d_filename
filename to be used for the content-disposition header If NULL, filename is used instead.
Definition: body.h:56
char * description
content-description
Definition: body.h:55
char * filename
When sending a message, this is the file to which this structure refers.
Definition: body.h:58
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◆ mutt_is_malformed_multipart_pgp_encrypted()

SecurityFlags mutt_is_malformed_multipart_pgp_encrypted ( struct Body b)

Check for malformed layout.

Parameters
bBody of email
Return values
numSuccess, see SecurityFlags
0Error, (SEC_NO_FLAGS)

This checks for the malformed layout caused by MS Exchange in some cases:

<multipart/mixed>
<text/plain>
<application/pgp-encrypted> [BASE64-encoded]
<application/octet-stream> [BASE64-encoded]

Definition at line 493 of file crypt.c.

494{
496 return SEC_NO_FLAGS;
497
498 if (!b || (b->type != TYPE_MULTIPART) || !b->subtype || !mutt_istr_equal(b->subtype, "mixed"))
499 {
500 return SEC_NO_FLAGS;
501 }
502
503 b = b->parts;
504 if (!b || (b->type != TYPE_TEXT) || !b->subtype ||
505 !mutt_istr_equal(b->subtype, "plain") || (b->length != 0))
506 {
507 return SEC_NO_FLAGS;
508 }
509
510 b = b->next;
511 if (!b || (b->type != TYPE_APPLICATION) || !b->subtype ||
512 !mutt_istr_equal(b->subtype, "pgp-encrypted"))
513 {
514 return SEC_NO_FLAGS;
515 }
516
517 b = b->next;
518 if (!b || (b->type != TYPE_APPLICATION) || !b->subtype ||
519 !mutt_istr_equal(b->subtype, "octet-stream"))
520 {
521 return SEC_NO_FLAGS;
522 }
523
524 b = b->next;
525 if (b)
526 return SEC_NO_FLAGS;
527
528 return PGP_ENCRYPT;
529}
LOFF_T length
length (in bytes) of attachment
Definition: body.h:53
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◆ mutt_is_multipart_encrypted()

SecurityFlags mutt_is_multipart_encrypted ( struct Body b)

Does the message have encrypted parts?

Parameters
bBody of email
Return values
numMessage has got encrypted parts, see SecurityFlags
0Message hasn't got encrypted parts (SEC_NO_FLAGS)

Definition at line 432 of file crypt.c.

433{
434 if ((WithCrypto & APPLICATION_PGP) == 0)
435 return SEC_NO_FLAGS;
436
437 char *p = NULL;
438
439 if (!b || (b->type != TYPE_MULTIPART) || !b->subtype ||
440 !mutt_istr_equal(b->subtype, "encrypted") ||
441 !(p = mutt_param_get(&b->parameter, "protocol")) ||
442 !mutt_istr_equal(p, "application/pgp-encrypted"))
443 {
444 return SEC_NO_FLAGS;
445 }
446
447 return PGP_ENCRYPT;
448}
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◆ mutt_is_multipart_signed()

SecurityFlags mutt_is_multipart_signed ( struct Body b)

Is a message signed?

Parameters
bBody of email
Return values
numMessage is signed, see SecurityFlags
0Message is not signed (SEC_NO_FLAGS)

Definition at line 397 of file crypt.c.

398{
399 if (!b || (b->type != TYPE_MULTIPART) || !b->subtype || !mutt_istr_equal(b->subtype, "signed"))
400 {
401 return SEC_NO_FLAGS;
402 }
403
404 char *p = mutt_param_get(&b->parameter, "protocol");
405 if (!p)
406 return SEC_NO_FLAGS;
407
408 if (mutt_istr_equal(p, "multipart/mixed"))
409 return SEC_SIGN;
410
411 if (((WithCrypto & APPLICATION_PGP) != 0) && mutt_istr_equal(p, "application/pgp-signature"))
412 {
413 return PGP_SIGN;
414 }
415
416 if (((WithCrypto & APPLICATION_SMIME) != 0) &&
417 (mutt_istr_equal(p, "application/x-pkcs7-signature") ||
418 mutt_istr_equal(p, "application/pkcs7-signature")))
419 {
420 return SMIME_SIGN;
421 }
422
423 return SEC_NO_FLAGS;
424}
#define SEC_SIGN
Email is signed.
Definition: lib.h:80
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◆ mutt_is_valid_multipart_pgp_encrypted()

int mutt_is_valid_multipart_pgp_encrypted ( struct Body b)

Is this a valid multi-part encrypted message?

Parameters
bBody of email
Return values
>0Message is valid, with encrypted parts, e.g. PGP_ENCRYPT
0Message hasn't got encrypted parts

Definition at line 456 of file crypt.c.

457{
459 return 0;
460
461 b = b->parts;
462 if (!b || (b->type != TYPE_APPLICATION) || !b->subtype ||
463 !mutt_istr_equal(b->subtype, "pgp-encrypted"))
464 {
465 return 0;
466 }
467
468 b = b->next;
469 if (!b || (b->type != TYPE_APPLICATION) || !b->subtype ||
470 !mutt_istr_equal(b->subtype, "octet-stream"))
471 {
472 return 0;
473 }
474
475 return PGP_ENCRYPT;
476}
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◆ mutt_protect()

int mutt_protect ( struct Email e,
char *  keylist,
bool  postpone 
)

Encrypt and/or sign a message.

Parameters
eEmail
keylistList of keys to encrypt to (space-separated)
postponeWhen true, signing is automatically disabled
Return values
0Success
-1Error

Definition at line 160 of file crypt.c.

161{
162 struct Body *pbody = NULL, *tmp_pbody = NULL;
163 struct Body *tmp_smime_pbody = NULL;
164 struct Body *tmp_pgp_pbody = NULL;
165 bool has_retainable_sig = false;
166
167 if (!WithCrypto)
168 return -1;
169
170 SecurityFlags security = e->security;
171 int sign = security & (SEC_AUTOCRYPT | SEC_SIGN);
172 if (postpone)
173 {
174 sign = SEC_NO_FLAGS;
175 security &= ~SEC_SIGN;
176 }
177
178 if (!(security & (SEC_ENCRYPT | SEC_AUTOCRYPT)) && !sign)
179 return 0;
180
181 if (sign && !(security & SEC_AUTOCRYPT) && !crypt_valid_passphrase(security))
182 return -1;
183
184 if (((WithCrypto & APPLICATION_PGP) != 0) && !(security & SEC_AUTOCRYPT) &&
185 ((security & PGP_INLINE) == PGP_INLINE))
186 {
187 if ((e->body->type != TYPE_TEXT) || !mutt_istr_equal(e->body->subtype, "plain"))
188 {
189 if (query_quadoption(_("Inline PGP can't be used with attachments. Revert to PGP/MIME?"),
190 NeoMutt->sub, "pgp_mime_auto") != MUTT_YES)
191 {
192 mutt_error(_("Mail not sent: inline PGP can't be used with attachments"));
193 return -1;
194 }
195 }
196 else if (mutt_istr_equal("flowed", mutt_param_get(&e->body->parameter, "format")))
197 {
198 if ((query_quadoption(_("Inline PGP can't be used with format=flowed. Revert to PGP/MIME?"),
199 NeoMutt->sub, "pgp_mime_auto")) != MUTT_YES)
200 {
201 mutt_error(_("Mail not sent: inline PGP can't be used with format=flowed"));
202 return -1;
203 }
204 }
205 else
206 {
207 /* they really want to send it inline... go for it */
208 if (!isendwin())
209 {
210 mutt_endwin();
211 puts(_("Invoking PGP..."));
212 }
213 pbody = crypt_pgp_traditional_encryptsign(e->body, security, keylist);
214 if (pbody)
215 {
216 e->body = pbody;
217 return 0;
218 }
219
220 /* otherwise inline won't work...ask for revert */
221 if (query_quadoption(_("Message can't be sent inline. Revert to using PGP/MIME?"),
222 NeoMutt->sub, "pgp_mime_auto") != MUTT_YES)
223 {
224 mutt_error(_("Mail not sent"));
225 return -1;
226 }
227 }
228
229 /* go ahead with PGP/MIME */
230 }
231
232 if (!isendwin())
233 mutt_endwin();
234
236 tmp_smime_pbody = e->body;
238 tmp_pgp_pbody = e->body;
239
240#ifdef CRYPT_BACKEND_GPGME
241 const bool c_crypt_use_pka = cs_subset_bool(NeoMutt->sub, "crypt_use_pka");
242 if (sign && c_crypt_use_pka)
243#else
244 if (sign)
245#endif
246 {
247 /* Set sender (necessary for e.g. PKA). */
248 const char *mailbox = NULL;
249 struct Address *from = TAILQ_FIRST(&e->env->from);
250 bool free_from = false;
251
252 if (!from)
253 {
254 free_from = true;
256 }
257
258 mailbox = buf_string(from->mailbox);
259 const struct Address *c_envelope_from_address = cs_subset_address(NeoMutt->sub, "envelope_from_address");
260 if (!mailbox && c_envelope_from_address)
261 mailbox = buf_string(c_envelope_from_address->mailbox);
262
263 if (((WithCrypto & APPLICATION_SMIME) != 0) && (security & APPLICATION_SMIME))
265 else if (((WithCrypto & APPLICATION_PGP) != 0) && (security & APPLICATION_PGP))
267
268 if (free_from)
269 mutt_addr_free(&from);
270 }
271
272 const bool c_crypt_protected_headers_write = cs_subset_bool(NeoMutt->sub, "crypt_protected_headers_write");
273 if (c_crypt_protected_headers_write)
274 {
275 struct Envelope *protected_headers = mutt_env_new();
276 mutt_str_replace(&protected_headers->subject, e->env->subject);
277 /* Note: if other headers get added, such as to, cc, then a call to
278 * mutt_env_to_intl() will need to be added here too. */
279 mutt_prepare_envelope(protected_headers, 0, NeoMutt->sub);
280
282 e->body->mime_headers = protected_headers;
283 mutt_param_set(&e->body->parameter, "protected-headers", "v1");
284 }
285
286#ifdef USE_AUTOCRYPT
287 /* A note about e->body->mime_headers. If postpone or send
288 * fails, the mime_headers is cleared out before returning to the
289 * compose menu. So despite the "robustness" code above and in the
290 * gen_gossip_list function below, mime_headers will not be set when
291 * entering mutt_protect().
292 *
293 * This is important to note because the user could toggle
294 * $crypt_protected_headers_write or $autocrypt off back in the
295 * compose menu. We don't want mutt_write_rfc822_header() to write
296 * stale data from one option if the other is set.
297 */
298 const bool c_autocrypt = cs_subset_bool(NeoMutt->sub, "autocrypt");
299 if (c_autocrypt && !postpone && (security & SEC_AUTOCRYPT))
300 {
302 }
303#endif
304
305 if (sign)
306 {
307 if (((WithCrypto & APPLICATION_SMIME) != 0) && (security & APPLICATION_SMIME))
308 {
309 tmp_pbody = crypt_smime_sign_message(e->body, &e->env->from);
310 if (!tmp_pbody)
311 goto bail;
312 pbody = tmp_pbody;
313 tmp_smime_pbody = tmp_pbody;
314 }
315
316 const bool c_pgp_retainable_sigs = cs_subset_bool(NeoMutt->sub, "pgp_retainable_sigs");
317 if (((WithCrypto & APPLICATION_PGP) != 0) && (security & APPLICATION_PGP) &&
318 (!(security & (SEC_ENCRYPT | SEC_AUTOCRYPT)) || c_pgp_retainable_sigs))
319 {
320 tmp_pbody = crypt_pgp_sign_message(e->body, &e->env->from);
321 if (!tmp_pbody)
322 goto bail;
323
324 has_retainable_sig = true;
325 sign = SEC_NO_FLAGS;
326 pbody = tmp_pbody;
327 tmp_pgp_pbody = tmp_pbody;
328 }
329 }
330
331 if (security & (SEC_ENCRYPT | SEC_AUTOCRYPT))
332 {
333 if (((WithCrypto & APPLICATION_SMIME) != 0) && (security & APPLICATION_SMIME))
334 {
335 tmp_pbody = crypt_smime_build_smime_entity(tmp_smime_pbody, keylist);
336 if (!tmp_pbody)
337 {
338 /* signed ? free it! */
339 goto bail;
340 }
341 /* free tmp_body if messages was signed AND encrypted ... */
342 if ((tmp_smime_pbody != e->body) && (tmp_smime_pbody != tmp_pbody))
343 {
344 /* detach and don't delete e->body,
345 * which tmp_smime_pbody->parts after signing. */
346 tmp_smime_pbody->parts = tmp_smime_pbody->parts->next;
347 e->body->next = NULL;
348 mutt_body_free(&tmp_smime_pbody);
349 }
350 pbody = tmp_pbody;
351 }
352
353 if (((WithCrypto & APPLICATION_PGP) != 0) && (security & APPLICATION_PGP))
354 {
355 pbody = crypt_pgp_encrypt_message(e, tmp_pgp_pbody, keylist, sign, &e->env->from);
356 if (!pbody)
357 {
358 /* did we perform a retainable signature? */
359 if (has_retainable_sig)
360 {
361 /* remove the outer multipart layer */
362 tmp_pgp_pbody = mutt_remove_multipart(tmp_pgp_pbody);
363 /* get rid of the signature */
364 mutt_body_free(&tmp_pgp_pbody->next);
365 }
366
367 goto bail;
368 }
369
370 // destroy temporary signature envelope when doing retainable signatures.
371 if (has_retainable_sig)
372 {
373 tmp_pgp_pbody = mutt_remove_multipart(tmp_pgp_pbody);
374 mutt_body_free(&tmp_pgp_pbody->next);
375 }
376 }
377 }
378
379 if (pbody)
380 {
381 e->body = pbody;
382 return 0;
383 }
384
385bail:
387 mutt_param_delete(&e->body->parameter, "protected-headers");
388 return -1;
389}
void mutt_addr_free(struct Address **ptr)
Free a single Address.
Definition: address.c:460
int mutt_autocrypt_generate_gossip_list(struct Email *e)
Create the gossip list headers.
Definition: autocrypt.c:823
const struct Address * cs_subset_address(const struct ConfigSubset *sub, const char *name)
Get an Address config item by name.
Definition: config_type.c:262
struct Body * crypt_pgp_sign_message(struct Body *a, const struct AddressList *from)
Wrapper for CryptModuleSpecs::sign_message()
Definition: cryptglue.c:327
struct Body * crypt_smime_build_smime_entity(struct Body *a, char *certlist)
Wrapper for CryptModuleSpecs::smime_build_smime_entity()
Definition: cryptglue.c:497
void crypt_pgp_set_sender(const char *sender)
Wrapper for CryptModuleSpecs::set_sender()
Definition: cryptglue.c:404
void crypt_smime_set_sender(const char *sender)
Wrapper for CryptModuleSpecs::set_sender()
Definition: cryptglue.c:539
struct Body * crypt_pgp_encrypt_message(struct Email *e, struct Body *a, char *keylist, int sign, const struct AddressList *from)
Wrapper for CryptModuleSpecs::pgp_encrypt_message()
Definition: cryptglue.c:338
struct Body * crypt_pgp_traditional_encryptsign(struct Body *a, SecurityFlags flags, char *keylist)
Wrapper for CryptModuleSpecs::pgp_traditional_encryptsign()
Definition: cryptglue.c:294
struct Body * crypt_smime_sign_message(struct Body *a, const struct AddressList *from)
Wrapper for CryptModuleSpecs::sign_message()
Definition: cryptglue.c:486
void mutt_body_free(struct Body **ptr)
Free a Body.
Definition: body.c:57
void mutt_env_free(struct Envelope **ptr)
Free an Envelope.
Definition: envelope.c:97
struct Envelope * mutt_env_new(void)
Create a new Envelope.
Definition: envelope.c:43
#define mutt_error(...)
Definition: logging2.h:92
struct Body * mutt_remove_multipart(struct Body *b)
Extract the multipart body if it exists.
Definition: multipart.c:126
char * mutt_str_replace(char **p, const char *s)
Replace one string with another.
Definition: string.c:327
void mutt_param_delete(struct ParameterList *pl, const char *attribute)
Delete a matching Parameter.
Definition: parameter.c:142
void mutt_param_set(struct ParameterList *pl, const char *attribute, const char *value)
Set a Parameter.
Definition: parameter.c:110
enum QuadOption query_quadoption(const char *prompt, struct ConfigSubset *sub, const char *name)
Ask the user a quad-question.
Definition: question.c:369
struct Address * mutt_default_from(struct ConfigSubset *sub)
Get a default 'from' Address.
Definition: send.c:1463
void mutt_prepare_envelope(struct Envelope *env, bool final, struct ConfigSubset *sub)
Prepare an email header.
Definition: sendlib.c:778
An email address.
Definition: address.h:36
struct Buffer * mailbox
Mailbox and host address.
Definition: address.h:38
The body of an email.
Definition: body.h:36
struct Envelope * mime_headers
Memory hole protected headers.
Definition: body.h:75
struct Body * body
List of MIME parts.
Definition: email.h:67
The header of an Email.
Definition: envelope.h:57
char * subject
Email's subject.
Definition: envelope.h:70
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◆ mutt_should_hide_protected_subject()

bool mutt_should_hide_protected_subject ( struct Email e)

Should NeoMutt hide the protected subject?

Parameters
eEmail to test
Return values
trueThe subject should be protected

Definition at line 1089 of file crypt.c.

1090{
1091 const bool c_crypt_protected_headers_write = cs_subset_bool(NeoMutt->sub, "crypt_protected_headers_write");
1092 const char *const c_crypt_protected_headers_subject =
1093 cs_subset_string(NeoMutt->sub, "crypt_protected_headers_subject");
1094 if (c_crypt_protected_headers_write && (e->security & (SEC_ENCRYPT | SEC_AUTOCRYPT)) &&
1095 !(e->security & SEC_INLINE) && c_crypt_protected_headers_subject)
1096 {
1097 return true;
1098 }
1099
1100 return false;
1101}
#define SEC_INLINE
Email has an inline signature.
Definition: lib.h:86
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◆ crypt_cleanup()

void crypt_cleanup ( void  )

Clean up backend.

Definition at line 142 of file cryptglue.c.

143{
144 if (CRYPT_MOD_CALL_CHECK(PGP, cleanup))
145 (CRYPT_MOD_CALL(PGP, cleanup))();
146
147 if (CRYPT_MOD_CALL_CHECK(SMIME, cleanup))
148 (CRYPT_MOD_CALL(SMIME, cleanup))();
149}
#define CRYPT_MOD_CALL_CHECK(identifier, func)
Definition: cryptglue.c:80
#define CRYPT_MOD_CALL(identifier, func)
Definition: cryptglue.c:86
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◆ crypt_has_module_backend()

bool crypt_has_module_backend ( SecurityFlags  type)

Is there a crypto backend for a given type?

Parameters
typeCrypto type, see SecurityFlags
Return values
trueBackend is present
falseBackend is not present

Definition at line 171 of file cryptglue.c.

172{
173 if (((WithCrypto & APPLICATION_PGP) != 0) && (type & APPLICATION_PGP) &&
175 {
176 return true;
177 }
178
179 if (((WithCrypto & APPLICATION_SMIME) != 0) && (type & APPLICATION_SMIME) &&
181 {
182 return true;
183 }
184
185 return false;
186}
const struct CryptModuleSpecs * crypto_module_lookup(int identifier)
Lookup a crypto module by name.
Definition: crypt_mod.c:67
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◆ crypt_init()

void crypt_init ( void  )

Initialise the crypto backends.

This calls CryptModuleSpecs::init()

Definition at line 94 of file cryptglue.c.

95{
96#ifdef CRYPT_BACKEND_GPGME
97 const bool c_crypt_use_gpgme = cs_subset_bool(NeoMutt->sub, "crypt_use_gpgme");
98#endif
99#ifdef CRYPT_BACKEND_CLASSIC_PGP
100 if (
101#ifdef CRYPT_BACKEND_GPGME
102 (!c_crypt_use_gpgme)
103#else
104 1
105#endif
106 )
108#endif
109
110#ifdef CRYPT_BACKEND_CLASSIC_SMIME
111 if (
112#ifdef CRYPT_BACKEND_GPGME
113 (!c_crypt_use_gpgme)
114#else
115 1
116#endif
117 )
119#endif
120
121#ifdef CRYPT_BACKEND_GPGME
122 if (c_crypt_use_gpgme)
123 {
126 }
127#endif
128
129#if defined(CRYPT_BACKEND_CLASSIC_PGP) || \
130 defined(CRYPT_BACKEND_CLASSIC_SMIME) || defined(CRYPT_BACKEND_GPGME)
131 if (CRYPT_MOD_CALL_CHECK(PGP, init))
132 CRYPT_MOD_CALL(PGP, init)();
133
134 if (CRYPT_MOD_CALL_CHECK(SMIME, init))
135 CRYPT_MOD_CALL(SMIME, init)();
136#endif
137}
void crypto_module_register(const struct CryptModuleSpecs *specs)
Register a new crypto module.
Definition: crypt_mod.c:53
const struct CryptModuleSpecs CryptModSmimeGpgme
GPGME SMIME - Implements CryptModuleSpecs.
const struct CryptModuleSpecs CryptModSmimeClassic
CLI SMIME - Implements CryptModuleSpecs.
const struct CryptModuleSpecs CryptModPgpGpgme
GPGME PGP - Implements CryptModuleSpecs.
const struct CryptModuleSpecs CryptModPgpClassic
CLI PGP - Implements CryptModuleSpecs.
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◆ crypt_invoke_message()

void crypt_invoke_message ( SecurityFlags  type)

Display an informative message.

Parameters
typeCrypto type, see SecurityFlags

Show a message that a backend will be invoked.

Definition at line 157 of file cryptglue.c.

158{
159 if (((WithCrypto & APPLICATION_PGP) != 0) && (type & APPLICATION_PGP))
160 mutt_message(_("Invoking PGP..."));
161 else if (((WithCrypto & APPLICATION_SMIME) != 0) && (type & APPLICATION_SMIME))
162 mutt_message(_("Invoking S/MIME..."));
163}
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◆ crypt_pgp_check_traditional()

bool crypt_pgp_check_traditional ( FILE *  fp,
struct Body b,
bool  just_one 
)

Wrapper for CryptModuleSpecs::pgp_check_traditional()

Definition at line 283 of file cryptglue.c.

284{
285 if (CRYPT_MOD_CALL_CHECK(PGP, pgp_check_traditional))
286 return CRYPT_MOD_CALL(PGP, pgp_check_traditional)(fp, b, just_one);
287
288 return false;
289}
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◆ crypt_pgp_decrypt_mime()

int crypt_pgp_decrypt_mime ( FILE *  fp_in,
FILE **  fp_out,
struct Body b,
struct Body **  cur 
)

Wrapper for CryptModuleSpecs::decrypt_mime()

Definition at line 211 of file cryptglue.c.

212{
213#ifdef USE_AUTOCRYPT
214 const bool c_autocrypt = cs_subset_bool(NeoMutt->sub, "autocrypt");
215 if (c_autocrypt)
216 {
217 OptAutocryptGpgme = true;
218 int result = pgp_gpgme_decrypt_mime(fp_in, fp_out, b, cur);
219 OptAutocryptGpgme = false;
220 if (result == 0)
221 {
222 b->is_autocrypt = true;
223 return result;
224 }
225 }
226#endif
227
228 if (CRYPT_MOD_CALL_CHECK(PGP, decrypt_mime))
229 return CRYPT_MOD_CALL(PGP, decrypt_mime)(fp_in, fp_out, b, cur);
230
231 return -1;
232}
bool OptAutocryptGpgme
(pseudo) use Autocrypt context inside ncrypt/crypt_gpgme.c
Definition: globals.c:67
int pgp_gpgme_decrypt_mime(FILE *fp_in, FILE **fp_out, struct Body *b, struct Body **cur)
Implements CryptModuleSpecs::decrypt_mime() -.
Definition: crypt_gpgme.c:1853
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◆ crypt_pgp_extract_key_from_attachment()

void crypt_pgp_extract_key_from_attachment ( FILE *  fp,
struct Body top 
)

Wrapper for CryptModuleSpecs::pgp_extract_key_from_attachment()

Definition at line 395 of file cryptglue.c.

396{
397 if (CRYPT_MOD_CALL_CHECK(PGP, pgp_extract_key_from_attachment))
398 CRYPT_MOD_CALL(PGP, pgp_extract_key_from_attachment)(fp, top);
399}
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◆ crypt_pgp_invoke_getkeys()

void crypt_pgp_invoke_getkeys ( struct Address addr)

Wrapper for CryptModuleSpecs::pgp_invoke_getkeys()

Definition at line 274 of file cryptglue.c.

275{
276 if (CRYPT_MOD_CALL_CHECK(PGP, pgp_invoke_getkeys))
277 CRYPT_MOD_CALL(PGP, pgp_invoke_getkeys)(addr);
278}
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◆ crypt_pgp_make_key_attachment()

struct Body * crypt_pgp_make_key_attachment ( void  )

Wrapper for CryptModuleSpecs::pgp_make_key_attachment()

Definition at line 305 of file cryptglue.c.

306{
307 if (CRYPT_MOD_CALL_CHECK(PGP, pgp_make_key_attachment))
308 return CRYPT_MOD_CALL(PGP, pgp_make_key_attachment)();
309
310 return NULL;
311}
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◆ crypt_pgp_send_menu()

SecurityFlags crypt_pgp_send_menu ( struct Email e)

Wrapper for CryptModuleSpecs::send_menu()

Definition at line 384 of file cryptglue.c.

385{
386 if (CRYPT_MOD_CALL_CHECK(PGP, send_menu))
387 return CRYPT_MOD_CALL(PGP, send_menu)(e);
388
389 return 0;
390}
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◆ crypt_smime_decrypt_mime()

int crypt_smime_decrypt_mime ( FILE *  fp_in,
FILE **  fp_out,
struct Body b,
struct Body **  cur 
)

Wrapper for CryptModuleSpecs::decrypt_mime()

Definition at line 433 of file cryptglue.c.

434{
435 if (CRYPT_MOD_CALL_CHECK(SMIME, decrypt_mime))
436 return CRYPT_MOD_CALL(SMIME, decrypt_mime)(fp_in, fp_out, b, cur);
437
438 return -1;
439}
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◆ crypt_smime_getkeys()

void crypt_smime_getkeys ( struct Envelope env)

Wrapper for CryptModuleSpecs::smime_getkeys()

Definition at line 455 of file cryptglue.c.

456{
457 if (CRYPT_MOD_CALL_CHECK(SMIME, smime_getkeys))
458 CRYPT_MOD_CALL(SMIME, smime_getkeys)(env);
459}
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◆ crypt_smime_send_menu()

SecurityFlags crypt_smime_send_menu ( struct Email e)

Wrapper for CryptModuleSpecs::send_menu()

Definition at line 528 of file cryptglue.c.

529{
530 if (CRYPT_MOD_CALL_CHECK(SMIME, send_menu))
531 return CRYPT_MOD_CALL(SMIME, send_menu)(e);
532
533 return 0;
534}
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◆ crypt_smime_verify_sender()

int crypt_smime_verify_sender ( struct Email e,
struct Message msg 
)

Wrapper for CryptModuleSpecs::smime_verify_sender()

Definition at line 464 of file cryptglue.c.

465{
466 if (CRYPT_MOD_CALL_CHECK(SMIME, smime_verify_sender))
467 return CRYPT_MOD_CALL(SMIME, smime_verify_sender)(e, msg);
468
469 return 1;
470}
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◆ crypto_module_cleanup()

void crypto_module_cleanup ( void  )

Clean up the crypto modules.

Definition at line 83 of file crypt_mod.c.

84{
85 struct CryptModule *np = NULL, *tmp = NULL;
86 STAILQ_FOREACH_SAFE(np, &CryptModules, entries, tmp)
87 {
89 FREE(&np);
90 }
91}
static struct CryptModuleList CryptModules
Linked list of crypto modules, e.g. CryptModSmimeClassic, CryptModPgpGpgme.
Definition: crypt_mod.c:47
#define STAILQ_REMOVE(head, elm, type, field)
Definition: queue.h:402
#define STAILQ_FOREACH_SAFE(var, head, field, tvar)
Definition: queue.h:362
A crypto plugin module.
Definition: crypt_mod.c:40
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◆ mutt_gpgme_select_secret_key()

int mutt_gpgme_select_secret_key ( struct Buffer keyid)

Select a private Autocrypt key for a new account.

Parameters
keyidAutocrypt Key id
Return values
0Success
-1Error

Unfortunately, the internal ncrypt/crypt_gpgme.c functions use CryptKeyInfo, and so aren't exportable.

This function queries all private keys, provides the crypt_select_keys() menu, and returns the selected key fingerprint in keyid.

Definition at line 3570 of file crypt_gpgme.c.

3571{
3572 int rc = -1;
3573 gpgme_error_t err;
3574 gpgme_key_t key = NULL;
3575 gpgme_user_id_t uid = NULL;
3576 struct CryptKeyInfo *results = NULL, *k = NULL;
3577 struct CryptKeyInfo **kend = NULL;
3578 struct CryptKeyInfo *choice = NULL;
3579
3580 gpgme_ctx_t ctx = create_gpgme_context(false);
3581
3582 /* list all secret keys */
3583 if (gpgme_op_keylist_start(ctx, NULL, 1))
3584 goto cleanup;
3585
3586 kend = &results;
3587
3588 while (!(err = gpgme_op_keylist_next(ctx, &key)))
3589 {
3591
3596
3597 if (key->revoked)
3599 if (key->expired)
3601 if (key->disabled)
3603
3604 int idx;
3605 for (idx = 0, uid = key->uids; uid; idx++, uid = uid->next)
3606 {
3607 k = mutt_mem_calloc(1, sizeof(*k));
3608 k->kobj = key;
3609 gpgme_key_ref(k->kobj);
3610 k->idx = idx;
3611 k->uid = uid->uid;
3612 k->flags = flags;
3613 if (uid->revoked)
3614 k->flags |= KEYFLAG_REVOKED;
3615 k->validity = uid->validity;
3616 *kend = k;
3617 kend = &k->next;
3618 }
3619 gpgme_key_unref(key);
3620 }
3621 if (gpg_err_code(err) != GPG_ERR_EOF)
3622 mutt_error(_("gpgme_op_keylist_next failed: %s"), gpgme_strerror(err));
3623 gpgme_op_keylist_end(ctx);
3624
3625 if (!results)
3626 {
3627 /* L10N: mutt_gpgme_select_secret_key() tries to list all secret keys to choose
3628 from. This error is displayed if no results were found. */
3629 mutt_error(_("No secret keys found"));
3630 goto cleanup;
3631 }
3632
3633 choice = dlg_gpgme(results, NULL, "*", APPLICATION_PGP, NULL);
3634 if (!(choice && choice->kobj && choice->kobj->subkeys && choice->kobj->subkeys->fpr))
3635 goto cleanup;
3636 buf_strcpy(keyid, choice->kobj->subkeys->fpr);
3637
3638 rc = 0;
3639
3640cleanup:
3641 crypt_key_free(&choice);
3642 crypt_key_free(&results);
3643 gpgme_release(ctx);
3644 return rc;
3645}
size_t buf_strcpy(struct Buffer *buf, const char *s)
Copy a string into a Buffer.
Definition: buffer.c:407
gpgme_ctx_t create_gpgme_context(bool for_smime)
Create a new GPGME context.
Definition: crypt_gpgme.c:360
unsigned int key_check_cap(gpgme_key_t key, enum KeyCap cap)
Check the capabilities of a key.
Definition: crypt_gpgme.c:2845
static void crypt_key_free(struct CryptKeyInfo **keylist)
Release all the keys in a list.
Definition: crypt_gpgme.c:252
@ KEY_CAP_CAN_ENCRYPT
Key can be used for encryption.
Definition: crypt_gpgme.h:76
@ KEY_CAP_CAN_SIGN
Key can be used for signing.
Definition: crypt_gpgme.h:77
struct CryptKeyInfo * dlg_gpgme(struct CryptKeyInfo *keys, struct Address *p, const char *s, unsigned int app, bool *forced_valid)
Get the user to select a key -.
Definition: dlg_gpgme.c:631
void * mutt_mem_calloc(size_t nmemb, size_t size)
Allocate zeroed memory on the heap.
Definition: memory.c:50
#define KEYFLAG_EXPIRED
Key is expired.
Definition: lib.h:132
uint16_t KeyFlags
Flags describing PGP/SMIME keys, e.g. KEYFLAG_CANSIGN.
Definition: lib.h:126
#define KEYFLAG_CANENCRYPT
Key is suitable for encryption.
Definition: lib.h:129
#define KEYFLAG_NO_FLAGS
No flags are set.
Definition: lib.h:127
#define KEYFLAG_DISABLED
Key is marked disabled.
Definition: lib.h:134
#define KEYFLAG_REVOKED
Key is revoked.
Definition: lib.h:133
#define KEYFLAG_CANSIGN
Key is suitable for signing.
Definition: lib.h:128
A stored PGP key.
Definition: crypt_gpgme.h:44
KeyFlags flags
global and per uid flags (for convenience)
Definition: crypt_gpgme.h:49
int idx
and the user ID at this index
Definition: crypt_gpgme.h:47
struct CryptKeyInfo * next
Linked list.
Definition: crypt_gpgme.h:45
const char * uid
and for convenience point to this user ID
Definition: crypt_gpgme.h:48
gpgme_key_t kobj
Definition: crypt_gpgme.h:46
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◆ mutt_gpgme_print_version()

const char * mutt_gpgme_print_version ( void  )

Get version of GPGME.

Return values
ptrGPGME version string

Definition at line 4049 of file crypt_gpgme.c.

4050{
4051 return GPGME_VERSION;
4052}
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