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pEpEngine
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ENGINE_214: intermittent commit

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doc_update_sequoia
Krista Bennett 6 years ago
parent b5deb942e0
commit ee4e838e17
2 changed files with 34 additions and 47 deletions
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73
src/message_api.c
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@ -100,11 +100,11 @@ void add_opt_field(message *msg, const char *name, const char *value)
}
}
static char * encapsulate_message_version(const char *msg_version, const char *longmsg)
static char * encapsulate_message_wrap_info(const char *msg_wrap_info, const char *longmsg)
{
assert(msg_version);
assert(msg_wrap_info);
if (!msg_version) {
if (!msg_wrap_info) {
if (!longmsg)
return NULL;
else {
@ -120,14 +120,14 @@ static char * encapsulate_message_version(const char *msg_version, const char *l
const char * const newlines = "\n\n";
const size_t NL_LEN = 2;
const size_t bufsize = PEP_MSG_VERSION_KEY_LEN + strlen(msg_version) + NL_LEN + strlen(longmsg) + 1;
const size_t bufsize = PEP_MSG_WRAP_KEY_LEN + strlen(msg_wrap_info) + NL_LEN + strlen(longmsg) + 1;
char * ptext = calloc(1, bufsize);
assert(ptext);
if (ptext == NULL)
return NULL;
strlcpy(ptext, PEP_MSG_VERSION_KEY, bufsize);
strlcat(ptext, msg_version, bufsize);
strlcpy(ptext, PEP_MSG_WRAP_KEY, bufsize);
strlcat(ptext, msg_wrap_info, bufsize);
strlcat(ptext, newlines, bufsize);
strlcat(ptext, longmsg, bufsize);
@ -225,29 +225,29 @@ static PEP_STATUS get_data_from_encapsulated_line(const char* plaintext, const c
}
static int separate_short_and_long(const char *src, char **shortmsg, char** msg_version, char **longmsg)
static int separate_short_and_long(const char *src, char **shortmsg, char** msg_wrap_info, char **longmsg)
{
char *_shortmsg = NULL;
char *_msg_version = NULL;
char *_msg_wrap_info = NULL;
char *_longmsg = NULL;
assert(src);
assert(shortmsg);
assert(msg_version);
assert(msg_wrap_info);
assert(longmsg);
if (src == NULL || shortmsg == NULL || msg_version == NULL || longmsg == NULL)
if (src == NULL || shortmsg == NULL || msg_wrap_info == NULL || longmsg == NULL)
return -1;
*shortmsg = NULL;
*longmsg = NULL;
*msg_version = NULL;
*msg_wrap_info = NULL;
// We generated the input here. If we ever need more than one header value to be
// encapsulated and hidden in the encrypted text, we will have to modify this.
// As is, we're either doing this with a version 1.0 client, in which case
// the only encapsulated header value is subject, or 2.0+, in which the
// message version is the only encapsulated header value. If we need this
// message wrap info is the only encapsulated header value. If we need this
// to be more complex, we're going to have to do something more elegant
// and efficient.
PEP_STATUS status = get_data_from_encapsulated_line(src, PEP_SUBJ_KEY_LC,
@ -261,19 +261,19 @@ static int separate_short_and_long(const char *src, char **shortmsg, char** msg_
goto enomem;
}
else {
status = get_data_from_encapsulated_line(src, PEP_MSG_VERSION_KEY_LC,
PEP_MSG_VERSION_KEY_LEN,
&_msg_version, &_longmsg);
if (_msg_version) {
status = get_data_from_encapsulated_line(src, PEP_MSG_WRAP_KEY_LC,
PEP_MSG_WRAP_KEY_LEN,
&_msg_wrap_info, &_longmsg);
if (_msg_wrap_info) {
if (status == PEP_STATUS_OK)
*msg_version = _msg_version;
*msg_wrap_info = _msg_wrap_info;
else
goto enomem;
}
}
// If there was no secret data hiding in the first line...
if (!_shortmsg && !_msg_version) {
if (!_shortmsg && !_msg_wrap_info) {
_longmsg = strdup(src);
assert(_longmsg);
if (_longmsg == NULL)
@ -286,7 +286,7 @@ static int separate_short_and_long(const char *src, char **shortmsg, char** msg_
enomem:
free(_shortmsg);
free(_msg_version);
free(_msg_wrap_info);
free(_longmsg);
return -1;
@ -453,29 +453,16 @@ static PEP_STATUS encrypt_PGP_MIME(
dst->enc_format = PEP_enc_PGP_MIME;
unsigned char pepstr[] = PEP_SUBJ_STRING;
if (src->shortmsg && strcmp(src->shortmsg, "pEp") != 0
&& _unsigned_signed_strcmp(pepstr, src->shortmsg, PEP_SUBJ_BYTELEN) != 0) {
if (session->unencrypted_subject) {
dst->shortmsg = strdup(src->shortmsg);
assert(dst->shortmsg);
if (dst->shortmsg == NULL)
goto enomem;
ptext = src->longmsg;
}
else {
ptext = combine_short_and_long(src->shortmsg, src->longmsg);
if (ptext == NULL)
goto enomem;
free_ptext = true;
}
}
else if (src->longmsg) {
ptext = src->longmsg;
}
else {
ptext = (char*)pepstr;
}
if (src->shortmsg)
dst->shortmsg = strdup(src->shortmsg);
// Right now, we only encrypt inner messages or outer messages. There
// is no in-between. All messages are to be wrapped or are a wrapper.
const char* msg_wrap_info = (flags & PEP_encrypt_flag_wrap_message ?
"INNER" : "OUTER");
ptext = encapsulate_message_wrap_info(const char *msg_wrap_info, src->longmsg);
message *_src = calloc(1, sizeof(message));
assert(_src);
if (_src == NULL)
@ -1833,8 +1820,8 @@ static PEP_STATUS unencapsulate_hidden_fields(message* src, message* msg) {
{
char * shortmsg;
char * longmsg;
char * msg_version; // This is incorrect, but just here to get things compiling for the moment
int r = separate_short_and_long(msg->longmsg, &shortmsg, &msg_version,
char * msg_wrap_info; // This is incorrect, but just here to get things compiling for the moment
int r = separate_short_and_long(msg->longmsg, &shortmsg, &msg_wrap_info,
&longmsg);
if (r == -1)

8
src/pEp_internal.h
Unescape Escape View File

@ -43,10 +43,10 @@
#define PEP_SUBJ_KEY_LEN 9
#endif
#ifndef PEP_MSG_VERSION_KEY
#define PEP_MSG_VERSION_KEY "pEp-Message-Version: "
#define PEP_MSG_VERSION_KEY_LC "pep-message-version: "
#define PEP_MSG_VERSION_KEY_LEN 21
#ifndef PEP_MSG_WRAP_KEY
#define PEP_MSG_WRAP_KEY "pEp-Wrapped-Message-Info: "
#define PEP_MSG_WRAP_KEY_LC "pep-wrapped-message-info: "
#define PEP_MSG_WRAP_KEY_LEN 26
#endif

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