skylab/MasterPassword
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Improved error detection and handling.

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This commit is contained in:
Maarten Billemont 2017-07-23 16:49:55 -04:00
parent b65fedf40d
commit 8a73baa6bc
3 changed files with 274 additions and 169 deletions
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403
core/c/mpw-marshall.c
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@ -42,14 +42,17 @@ static time_t mpw_mktime(
const char *time) { const char *time) {
struct tm tm = { .tm_isdst = -1, .tm_gmtoff = 0 }; struct tm tm = { .tm_isdst = -1, .tm_gmtoff = 0 };
sscanf( time, "%4d-%2d-%2dT%2d:%2d:%2dZ", if (time && sscanf( time, "%4d-%2d-%2dT%2d:%2d:%2dZ",
&tm.tm_year, &tm.tm_mon, &tm.tm_mday, &tm.tm_year, &tm.tm_mon, &tm.tm_mday,
&tm.tm_hour, &tm.tm_min, &tm.tm_sec ); &tm.tm_hour, &tm.tm_min, &tm.tm_sec ) == 6) {
tm.tm_year -= 1900; // tm_year 0 = rfc3339 year 1900 tm.tm_year -= 1900; // tm_year 0 = rfc3339 year 1900
tm.tm_mon -= 1; // tm_mon 0 = rfc3339 month 1 tm.tm_mon -= 1; // tm_mon 0 = rfc3339 month 1
return mktime( &tm ); return mktime( &tm );
} }
return false;
}
static bool mpw_update_masterKey(MPMasterKey *masterKey, MPAlgorithmVersion *masterKeyAlgorithm, MPAlgorithmVersion targetKeyAlgorithm, static bool mpw_update_masterKey(MPMasterKey *masterKey, MPAlgorithmVersion *masterKeyAlgorithm, MPAlgorithmVersion targetKeyAlgorithm,
const char *fullName, const char *masterPassword) { const char *fullName, const char *masterPassword) {
@ -70,8 +73,8 @@ static bool mpw_update_masterKey(MPMasterKey *masterKey, MPAlgorithmVersion *mas
MPMarshalledUser *mpw_marshall_user( MPMarshalledUser *mpw_marshall_user(
const char *fullName, const char *masterPassword, const MPAlgorithmVersion algorithmVersion) { const char *fullName, const char *masterPassword, const MPAlgorithmVersion algorithmVersion) {
MPMarshalledUser *user = malloc( sizeof( MPMarshalledUser ) ); MPMarshalledUser *user;
if (!user) if (!fullName || !masterPassword || !(user = malloc( sizeof( MPMarshalledUser ) )))
return NULL; return NULL;
*user = (MPMarshalledUser){ *user = (MPMarshalledUser){
@ -94,7 +97,7 @@ MPMarshalledSite *mpw_marshall_site(
MPMarshalledUser *marshalledUser, MPMarshalledUser *marshalledUser,
const char *siteName, const MPSiteType siteType, const uint32_t siteCounter, const MPAlgorithmVersion algorithmVersion) { const char *siteName, const MPSiteType siteType, const uint32_t siteCounter, const MPAlgorithmVersion algorithmVersion) {
if (!(marshalledUser->sites = if (!siteName || !(marshalledUser->sites =
realloc( marshalledUser->sites, sizeof( MPMarshalledSite ) * (++marshalledUser->sites_count) ))) realloc( marshalledUser->sites, sizeof( MPMarshalledSite ) * (++marshalledUser->sites_count) )))
return NULL; return NULL;
@ -121,7 +124,7 @@ MPMarshalledSite *mpw_marshall_site(
MPMarshalledQuestion *mpw_marshal_question( MPMarshalledQuestion *mpw_marshal_question(
MPMarshalledSite *marshalledSite, const char *keyword) { MPMarshalledSite *marshalledSite, const char *keyword) {
if (!(marshalledSite->questions = if (!keyword || !(marshalledSite->questions =
realloc( marshalledSite->questions, sizeof( MPMarshalledQuestion ) * (++marshalledSite->questions_count) ))) realloc( marshalledSite->questions, sizeof( MPMarshalledQuestion ) * (++marshalledSite->questions_count) )))
return NULL; return NULL;
@ -155,16 +158,28 @@ bool mpw_marshal_free(
#define try_asprintf(...) ({ if (asprintf( __VA_ARGS__ ) < 0) return false; }) #define try_asprintf(...) ({ if (asprintf( __VA_ARGS__ ) < 0) return false; })
bool mpw_marshall_write_flat( bool mpw_marshall_write_flat(
char **out, const MPMarshalledUser *marshalledUser) { char **out, const MPMarshalledUser *user, MPMarshallError *error) {
MPMasterKey masterKey = NULL; *error = MPMarshallErrorInternal;
MPAlgorithmVersion masterKeyAlgorithm = marshalledUser->algorithm - 1; if (!user->name || !strlen( user->name )) {
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, err( "Missing full name.\n" );
marshalledUser->algorithm, marshalledUser->name, marshalledUser->masterPassword )) *error = MPMarshallErrorMissing;
return false; return false;
}
if (!user->masterPassword || !strlen( user->masterPassword )) {
err( "Missing master password.\n" );
*error = MPMarshallErrorMasterPassword;
return false;
}
MPMasterKey masterKey = NULL;
MPAlgorithmVersion masterKeyAlgorithm = user->algorithm - 1;
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, user->algorithm, user->name, user->masterPassword )) {
err( "Couldn't derive master key.\n" );
return false;
}
try_asprintf( out, "# Master Password site export\n" ); try_asprintf( out, "# Master Password site export\n" );
if (marshalledUser->redacted) if (user->redacted)
try_asprintf( out, "# Export of site names and passwords in clear-text.\n" ); try_asprintf( out, "# Export of site names and passwords in clear-text.\n" );
else else
try_asprintf( out, "# Export of site names and stored passwords (unless device-private) encrypted with the master key.\n" ); try_asprintf( out, "# Export of site names and stored passwords (unless device-private) encrypted with the master key.\n" );
@ -172,103 +187,117 @@ bool mpw_marshall_write_flat(
try_asprintf( out, "##\n" ); try_asprintf( out, "##\n" );
try_asprintf( out, "# Format: %d\n", 1 ); try_asprintf( out, "# Format: %d\n", 1 );
size_t dateSize = 21; char dateString[21];
char dateString[dateSize];
time_t now = time( NULL ); time_t now = time( NULL );
if (strftime( dateString, dateSize, "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'", gmtime( &now ) )) if (strftime( dateString, sizeof( dateString ), "%FT%TZ", gmtime( &now ) ))
try_asprintf( out, "# Date: %s\n", dateString ); try_asprintf( out, "# Date: %s\n", dateString );
try_asprintf( out, "# User Name: %s\n", marshalledUser->name ); try_asprintf( out, "# User Name: %s\n", user->name );
try_asprintf( out, "# Full Name: %s\n", marshalledUser->name ); try_asprintf( out, "# Full Name: %s\n", user->name );
try_asprintf( out, "# Avatar: %u\n", marshalledUser->avatar ); try_asprintf( out, "# Avatar: %u\n", user->avatar );
try_asprintf( out, "# Key ID: %s\n", mpw_id_buf( masterKey, MPMasterKeySize ) ); try_asprintf( out, "# Key ID: %s\n", mpw_id_buf( masterKey, MPMasterKeySize ) );
try_asprintf( out, "# Algorithm: %d\n", marshalledUser->algorithm ); try_asprintf( out, "# Algorithm: %d\n", user->algorithm );
try_asprintf( out, "# Default Type: %d\n", marshalledUser->defaultType ); try_asprintf( out, "# Default Type: %d\n", user->defaultType );
try_asprintf( out, "# Passwords: %s\n", marshalledUser->redacted? "PROTECTED": "VISIBLE" ); try_asprintf( out, "# Passwords: %s\n", user->redacted? "PROTECTED": "VISIBLE" );
try_asprintf( out, "##\n" ); try_asprintf( out, "##\n" );
try_asprintf( out, "#\n" ); try_asprintf( out, "#\n" );
try_asprintf( out, "# Last Times Password Login\t Site\tSite\n" ); try_asprintf( out, "# Last Times Password Login\t Site\tSite\n" );
try_asprintf( out, "# used used type name\t name\tpassword\n" ); try_asprintf( out, "# used used type name\t name\tpassword\n" );
// Sites. // Sites.
for (int s = 0; s < marshalledUser->sites_count; ++s) { for (int s = 0; s < user->sites_count; ++s) {
MPMarshalledSite site = marshalledUser->sites[s]; MPMarshalledSite site = user->sites[s];
if (!site.name || !strlen( site.name ))
continue;
const char *content = site.type & MPSiteFeatureExportContent? site.content: NULL; const char *content = site.type & MPSiteFeatureExportContent? site.content: NULL;
if (!marshalledUser->redacted) { if (!user->redacted) {
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, site.algorithm, user->name, user->masterPassword )) {
site.algorithm, marshalledUser->name, marshalledUser->masterPassword )) err( "Couldn't derive master key.\n" );
return false; return false;
}
if (site.type & MPSiteTypeClassGenerated) if (site.type & MPSiteTypeClassGenerated)
content = mpw_passwordForSite( masterKey, site.name, site.type, site.counter, content = mpw_passwordForSite( masterKey, site.name, site.type, site.counter, MPSiteVariantPassword, NULL, site.algorithm );
MPSiteVariantPassword, NULL, site.algorithm );
else if (content) { else if (content) {
// TODO: Decrypt Personal Passwords // TODO: Decrypt Personal Passwords
//content = aes128_cbc( masterKey, content ); //content = aes128_cbc( masterKey, content );
} }
} }
if (strftime( dateString, dateSize, "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'", gmtime( &site.lastUsed ) )) if (strftime( dateString, sizeof( dateString ), "%FT%TZ", gmtime( &site.lastUsed ) ))
try_asprintf( out, "%s %8ld %lu:%lu:%lu %25s\t%25s\t%s\n", try_asprintf( out, "%s %8ld %lu:%lu:%lu %25s\t%25s\t%s\n",
dateString, (long)site.uses, (long)site.type, (long)site.algorithm, (long)site.counter, dateString, (long)site.uses, (long)site.type, (long)site.algorithm, (long)site.counter,
site.loginName?: "", site.name, content?: "" ); site.loginName?: "", site.name, content?: "" );
} }
mpw_free( masterKey, MPMasterKeySize ); mpw_free( masterKey, MPMasterKeySize );
*error = MPMarshallSuccess;
return true; return true;
} }
bool mpw_marshall_write_json( bool mpw_marshall_write_json(
char **out, const MPMarshalledUser *marshalledUser) { char **out, const MPMarshalledUser *user, MPMarshallError *error) {
MPMasterKey masterKey = NULL; *error = MPMarshallErrorInternal;
MPAlgorithmVersion masterKeyAlgorithm = marshalledUser->algorithm - 1; if (!user->name || !strlen( user->name )) {
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, err( "Missing full name.\n" );
marshalledUser->algorithm, marshalledUser->name, marshalledUser->masterPassword )) *error = MPMarshallErrorMissing;
return false; return false;
}
json_object *json_file = json_object_new_object(); if (!user->masterPassword || !strlen( user->masterPassword )) {
err( "Missing master password.\n" );
*error = MPMarshallErrorMasterPassword;
return false;
}
MPMasterKey masterKey = NULL;
MPAlgorithmVersion masterKeyAlgorithm = user->algorithm - 1;
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, user->algorithm, user->name, user->masterPassword )) {
err( "Couldn't derive master key.\n" );
return false;
}
// Section: "export" // Section: "export"
json_object *json_file = json_object_new_object();
json_object *json_export = json_object_new_object(); json_object *json_export = json_object_new_object();
json_object_object_add( json_file, "export", json_export ); json_object_object_add( json_file, "export", json_export );
json_object_object_add( json_export, "format", json_object_new_int( 1 ) ); json_object_object_add( json_export, "format", json_object_new_int( 1 ) );
json_object_object_add( json_export, "redacted", json_object_new_boolean( marshalledUser->redacted ) ); json_object_object_add( json_export, "redacted", json_object_new_boolean( user->redacted ) );
size_t dateSize = 21; char dateString[21];
char dateString[dateSize];
time_t now = time( NULL ); time_t now = time( NULL );
if (strftime( dateString, dateSize, "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'", gmtime( &now ) )) if (strftime( dateString, sizeof( dateString ), "%FT%TZ", gmtime( &now ) ))
json_object_object_add( json_export, "date", json_object_new_string( dateString ) ); json_object_object_add( json_export, "date", json_object_new_string( dateString ) );
// Section: "user" // Section: "user"
json_object *json_user = json_object_new_object(); json_object *json_user = json_object_new_object();
json_object_object_add( json_file, "user", json_user ); json_object_object_add( json_file, "user", json_user );
json_object_object_add( json_user, "avatar", json_object_new_int( marshalledUser->avatar ) ); json_object_object_add( json_user, "avatar", json_object_new_int( user->avatar ) );
json_object_object_add( json_user, "full_name", json_object_new_string( marshalledUser->name ) ); json_object_object_add( json_user, "full_name", json_object_new_string( user->name ) );
if (strftime( dateString, dateSize, "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'", gmtime( &marshalledUser->lastUsed ) )) if (strftime( dateString, sizeof( dateString ), "%FT%TZ", gmtime( &user->lastUsed ) ))
json_object_object_add( json_user, "last_used", json_object_new_string( dateString ) ); json_object_object_add( json_user, "last_used", json_object_new_string( dateString ) );
json_object_object_add( json_user, "key_id", json_object_new_string( mpw_id_buf( masterKey, MPMasterKeySize ) ) ); json_object_object_add( json_user, "key_id", json_object_new_string( mpw_id_buf( masterKey, MPMasterKeySize ) ) );
json_object_object_add( json_user, "algorithm", json_object_new_int( marshalledUser->algorithm ) ); json_object_object_add( json_user, "algorithm", json_object_new_int( user->algorithm ) );
json_object_object_add( json_user, "default_type", json_object_new_int( marshalledUser->defaultType ) ); json_object_object_add( json_user, "default_type", json_object_new_int( user->defaultType ) );
// Section "sites" // Section "sites"
json_object *json_sites = json_object_new_object(); json_object *json_sites = json_object_new_object();
json_object_object_add( json_file, "sites", json_sites ); json_object_object_add( json_file, "sites", json_sites );
for (int s = 0; s < marshalledUser->sites_count; ++s) { for (int s = 0; s < user->sites_count; ++s) {
MPMarshalledSite site = marshalledUser->sites[s]; MPMarshalledSite site = user->sites[s];
if (!site.name || !strlen( site.name ))
continue;
const char *content = site.type & MPSiteFeatureExportContent? site.content: NULL; const char *content = site.type & MPSiteFeatureExportContent? site.content: NULL;
if (!marshalledUser->redacted) { if (!user->redacted) {
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, site.algorithm, user->name, user->masterPassword )) {
site.algorithm, marshalledUser->name, marshalledUser->masterPassword )) err( "Couldn't derive master key.\n" );
return false; return false;
}
if (site.type & MPSiteTypeClassGenerated) if (site.type & MPSiteTypeClassGenerated)
content = mpw_passwordForSite( masterKey, site.name, site.type, site.counter, content = mpw_passwordForSite( masterKey, site.name, site.type, site.counter, MPSiteVariantPassword, NULL, site.algorithm );
MPSiteVariantPassword, NULL, site.algorithm );
else if (content) { else if (content) {
// TODO: Decrypt Personal Passwords // TODO: Decrypt Personal Passwords
//content = aes128_cbc( masterKey, content ); //content = aes128_cbc( masterKey, content );
@ -287,21 +316,25 @@ bool mpw_marshall_write_json(
json_object_object_add( json_site, "login_generated", json_object_new_boolean( site.loginGenerated ) ); json_object_object_add( json_site, "login_generated", json_object_new_boolean( site.loginGenerated ) );
json_object_object_add( json_site, "uses", json_object_new_int( site.uses ) ); json_object_object_add( json_site, "uses", json_object_new_int( site.uses ) );
if (strftime( dateString, dateSize, "yyyy'-'MM'-'dd'T'HH':'mm':'ss'Z'", gmtime( &site.lastUsed ) )) if (strftime( dateString, sizeof( dateString ), "%FT%TZ", gmtime( &site.lastUsed ) ))
json_object_object_add( json_site, "last_used", json_object_new_string( dateString ) ); json_object_object_add( json_site, "last_used", json_object_new_string( dateString ) );
json_object *json_site_questions = json_object_new_object(); json_object *json_site_questions = json_object_new_object();
json_object_object_add( json_site, "questions", json_site_questions ); json_object_object_add( json_site, "questions", json_site_questions );
for (int q = 0; q < site.questions_count; ++q) { for (int q = 0; q < site.questions_count; ++q) {
MPMarshalledQuestion question = site.questions[q]; MPMarshalledQuestion question = site.questions[q];
if (!question.keyword)
continue;
json_object *json_site_question = json_object_new_object(); json_object *json_site_question = json_object_new_object();
json_object_object_add( json_site_questions, question.keyword, json_site_question ); json_object_object_add( json_site_questions, question.keyword, json_site_question );
if (!marshalledUser->redacted) if (!user->redacted) {
json_object_object_add( json_site_question, "answer", json_object_new_string( const char *answer = mpw_passwordForSite( masterKey, site.name, MPSiteTypeGeneratedPhrase, 1,
mpw_passwordForSite( masterKey, site.name, MPSiteTypeGeneratedPhrase, 1, MPSiteVariantAnswer, question.keyword, site.algorithm );
MPSiteVariantAnswer, question.keyword, site.algorithm ) ) ); if (answer)
json_object_object_add( json_site_question, "answer", json_object_new_string( answer ) );
}
} }
json_object *json_site_mpw = json_object_new_object(); json_object *json_site_mpw = json_object_new_object();
@ -314,24 +347,29 @@ bool mpw_marshall_write_json(
mpw_free( masterKey, MPMasterKeySize ); mpw_free( masterKey, MPMasterKeySize );
json_object_put( json_file ); json_object_put( json_file );
*error = MPMarshallSuccess;
return true; return true;
} }
bool mpw_marshall_write( bool mpw_marshall_write(
char **out, const MPMarshallFormat outFormat, const MPMarshalledUser *marshalledUser) { char **out, const MPMarshallFormat outFormat, const MPMarshalledUser *marshalledUser, MPMarshallError *error) {
switch (outFormat) { switch (outFormat) {
case MPMarshallFormatFlat: case MPMarshallFormatFlat:
return mpw_marshall_write_flat( out, marshalledUser ); return mpw_marshall_write_flat( out, marshalledUser, error );
case MPMarshallFormatJSON: case MPMarshallFormatJSON:
return mpw_marshall_write_json( out, marshalledUser ); return mpw_marshall_write_json( out, marshalledUser, error );
} }
err( "Unsupported output format: %u\n", outFormat );
*error = MPMarshallErrorFormat;
return false; return false;
} }
MPMarshalledUser *mpw_marshall_read_flat( MPMarshalledUser *mpw_marshall_read_flat(
char *in, const char *masterPassword) { char *in, const char *masterPassword, MPMarshallError *error) {
*error = MPMarshallErrorInternal;
// Parse import data. // Parse import data.
MPMasterKey masterKey = NULL; MPMasterKey masterKey = NULL;
@ -368,7 +406,8 @@ MPMarshalledUser *mpw_marshall_read_flat(
char *headerValue = mpw_get_token( &positionInLine, endOfLine, "\n" ); char *headerValue = mpw_get_token( &positionInLine, endOfLine, "\n" );
if (!headerName || !headerValue) { if (!headerName || !headerValue) {
err( "Invalid header: %s\n", strndup( positionInLine, endOfLine - positionInLine ) ); err( "Invalid header: %s\n", strndup( positionInLine, endOfLine - positionInLine ) );
return false; *error = MPMarshallErrorStructure;
return NULL;
} }
if (strcmp( headerName, "Format" ) == 0) if (strcmp( headerName, "Format" ) == 0)
@ -385,7 +424,8 @@ MPMarshalledUser *mpw_marshall_read_flat(
int importAlgorithmInt = atoi( headerValue ); int importAlgorithmInt = atoi( headerValue );
if (importAlgorithmInt < MPAlgorithmVersionFirst || importAlgorithmInt > MPAlgorithmVersionLast) { if (importAlgorithmInt < MPAlgorithmVersionFirst || importAlgorithmInt > MPAlgorithmVersionLast) {
err( "Invalid algorithm version: %s\n", headerValue ); err( "Invalid algorithm version: %s\n", headerValue );
return false; *error = MPMarshallErrorIllegal;
return NULL;
} }
importAlgorithm = (MPAlgorithmVersion)importAlgorithmInt; importAlgorithm = (MPAlgorithmVersion)importAlgorithmInt;
} }
@ -402,22 +442,25 @@ MPMarshalledUser *mpw_marshall_read_flat(
continue; continue;
if (!importUserName) { if (!importUserName) {
err( "Missing header: Full Name\n" ); err( "Missing header: Full Name\n" );
return false; *error = MPMarshallErrorMissing;
return NULL;
} }
if (positionInLine >= endOfLine) if (positionInLine >= endOfLine)
continue; continue;
if (!user) { if (!user) {
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, importAlgorithm, importUserName, masterPassword )) {
importAlgorithm, importUserName, masterPassword )) err( "Couldn't derive master key.\n" );
return false; return NULL;
}
if (importKeyID && !mpw_id_buf_equals( importKeyID, mpw_id_buf( masterKey, MPMasterKeySize ) )) { if (importKeyID && !mpw_id_buf_equals( importKeyID, mpw_id_buf( masterKey, MPMasterKeySize ) )) {
err( "Incorrect master password for user import file: %s != %s\n", importKeyID, mpw_id_buf( masterKey, MPMasterKeySize ) ); err( "Incorrect master password for user import file: %s != %s\n", importKeyID, mpw_id_buf( masterKey, MPMasterKeySize ) );
return false; *error = MPMarshallErrorMasterPassword;
return NULL;
} }
if (!(user = mpw_marshall_user( importUserName, masterPassword, importAlgorithm ))) { if (!(user = mpw_marshall_user( importUserName, masterPassword, importAlgorithm ))) {
err( "Couldn't allocate a new user.\n" ); err( "Couldn't allocate a new user.\n" );
return false; return NULL;
} }
user->redacted = importRedacted; user->redacted = importRedacted;
@ -426,83 +469,97 @@ MPMarshalledUser *mpw_marshall_read_flat(
} }
// Site // Site
char *lastUsed = NULL, *uses = NULL, *type = NULL, *version = NULL, *counter = NULL; char *siteLastUsed = NULL, *siteUses = NULL, *siteType = NULL, *siteAlgorithm = NULL, *siteCounter = NULL;
char *loginName = NULL, *siteName = NULL, *exportContent = NULL; char *siteLoginName = NULL, *siteName = NULL, *siteContent = NULL;
switch (importFormat) { switch (importFormat) {
case 0: { case 0: {
lastUsed = mpw_get_token( &positionInLine, endOfLine, " \t\n" ); siteLastUsed = mpw_get_token( &positionInLine, endOfLine, " \t\n" );
uses = mpw_get_token( &positionInLine, endOfLine, " \t\n" ); siteUses = mpw_get_token( &positionInLine, endOfLine, " \t\n" );
char *typeAndVersion = mpw_get_token( &positionInLine, endOfLine, " \t\n" ); char *typeAndVersion = mpw_get_token( &positionInLine, endOfLine, " \t\n" );
if (typeAndVersion) { if (typeAndVersion) {
type = strdup( strtok( typeAndVersion, ":" ) ); siteType = strdup( strtok( typeAndVersion, ":" ) );
version = strdup( strtok( NULL, "" ) ); siteAlgorithm = strdup( strtok( NULL, "" ) );
mpw_free_string( typeAndVersion ); mpw_free_string( typeAndVersion );
} }
counter = strdup( "1" ); siteCounter = strdup( "1" );
loginName = NULL; siteLoginName = NULL;
siteName = mpw_get_token( &positionInLine, endOfLine, "\t\n" ); siteName = mpw_get_token( &positionInLine, endOfLine, "\t\n" );
exportContent = mpw_get_token( &positionInLine, endOfLine, "\n" ); siteContent = mpw_get_token( &positionInLine, endOfLine, "\n" );
break; break;
} }
case 1: { case 1: {
lastUsed = mpw_get_token( &positionInLine, endOfLine, " \t\n" ); siteLastUsed = mpw_get_token( &positionInLine, endOfLine, " \t\n" );
uses = mpw_get_token( &positionInLine, endOfLine, " \t\n" ); siteUses = mpw_get_token( &positionInLine, endOfLine, " \t\n" );
char *typeAndVersionAndCounter = mpw_get_token( &positionInLine, endOfLine, " \t\n" ); char *typeAndVersionAndCounter = mpw_get_token( &positionInLine, endOfLine, " \t\n" );
if (typeAndVersionAndCounter) { if (typeAndVersionAndCounter) {
type = strdup( strtok( typeAndVersionAndCounter, ":" ) ); siteType = strdup( strtok( typeAndVersionAndCounter, ":" ) );
version = strdup( strtok( NULL, ":" ) ); siteAlgorithm = strdup( strtok( NULL, ":" ) );
counter = strdup( strtok( NULL, "" ) ); siteCounter = strdup( strtok( NULL, "" ) );
mpw_free_string( typeAndVersionAndCounter ); mpw_free_string( typeAndVersionAndCounter );
} }
loginName = mpw_get_token( &positionInLine, endOfLine, "\t\n" ); siteLoginName = mpw_get_token( &positionInLine, endOfLine, "\t\n" );
siteName = mpw_get_token( &positionInLine, endOfLine, "\t\n" ); siteName = mpw_get_token( &positionInLine, endOfLine, "\t\n" );
exportContent = mpw_get_token( &positionInLine, endOfLine, "\n" ); siteContent = mpw_get_token( &positionInLine, endOfLine, "\n" );
break; break;
} }
default: { default: {
err( "Unexpected import format: %lu\n", (unsigned long)importFormat ); err( "Unexpected import format: %u\n", importFormat );
return false; *error = MPMarshallErrorFormat;
return NULL;
} }
} }
if (siteName && type && counter && version && uses && lastUsed) { if (siteName && siteType && siteCounter && siteAlgorithm && siteUses && siteLastUsed) {
MPAlgorithmVersion siteAlgorithmInt = (MPAlgorithmVersion)atoi( siteAlgorithm );
if (siteAlgorithmInt < MPAlgorithmVersionFirst || siteAlgorithmInt > MPAlgorithmVersionLast) {
err( "Invalid site algorithm version: %u\n", siteAlgorithmInt );
*error = MPMarshallErrorIllegal;
return NULL;
}
MPMarshalledSite *site = mpw_marshall_site( user, siteName, MPMarshalledSite *site = mpw_marshall_site( user, siteName,
(MPSiteType)atoi( type ), (uint32_t)atoi( counter ), (MPAlgorithmVersion)atoi( version ) ); (MPSiteType)atoi( siteType ), (uint32_t)atoi( siteCounter ), siteAlgorithmInt );
site->loginName = loginName; if (!site) {
site->uses = (unsigned int)atoi( uses ); err( "Couldn't allocate a new site.\n" );
site->lastUsed = mpw_mktime( lastUsed ); return NULL;
}
if (exportContent) { site->loginName = siteLoginName? strdup( siteLoginName ): NULL;
site->uses = (unsigned int)atoi( siteUses );
site->lastUsed = mpw_mktime( siteLastUsed );
if (siteContent && strlen( siteContent )) {
if (user->redacted) { if (user->redacted) {
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, site->algorithm, importUserName, masterPassword )) {
site->algorithm, importUserName, masterPassword )) err( "Couldn't derive master key.\n" );
return false; return NULL;
}
// TODO: Encrypt Personal Passwords // TODO: Encrypt Personal Passwords
//site->content = aes128_cbc( masterKey, exportContent ); //site->content = aes128_cbc( masterKey, exportContent );
} }
else else
site->content = exportContent; site->content = strdup( siteContent );
} }
} }
else else
wrn( "Skipping: lastUsed=%s, uses=%s, type=%s, version=%s, counter=%s, loginName=%s, siteName=%s\n", wrn( "Skipping: lastUsed=%s, uses=%s, type=%s, version=%s, counter=%s, loginName=%s, siteName=%s\n",
lastUsed, uses, type, version, counter, loginName, siteName ); siteLastUsed, siteUses, siteType, siteAlgorithm, siteCounter, siteLoginName, siteName );
mpw_free_string( lastUsed ); mpw_free_string( siteLastUsed );
mpw_free_string( uses ); mpw_free_string( siteUses );
mpw_free_string( type ); mpw_free_string( siteType );
mpw_free_string( version ); mpw_free_string( siteAlgorithm );
mpw_free_string( counter ); mpw_free_string( siteCounter );
mpw_free_string( loginName ); mpw_free_string( siteLoginName );
mpw_free_string( siteName ); mpw_free_string( siteName );
mpw_free_string( exportContent ); mpw_free_string( siteContent );
} }
mpw_free_string( importUserName ); mpw_free_string( importUserName );
mpw_free_string( importKeyID ); mpw_free_string( importKeyID );
mpw_free_string( importDate ); mpw_free_string( importDate );
mpw_free( masterKey, MPMasterKeySize ); mpw_free( masterKey, MPMasterKeySize );
*error = MPMarshallSuccess;
return user; return user;
} }
@ -513,7 +570,7 @@ static json_object *mpw_marshall_get_json_section(
char *sectionTokenizer = strdup( section ), *sectionToken = sectionTokenizer; char *sectionTokenizer = strdup( section ), *sectionToken = sectionTokenizer;
for (sectionToken = strtok( sectionToken, "." ); sectionToken; sectionToken = strtok( NULL, "." )) for (sectionToken = strtok( sectionToken, "." ); sectionToken; sectionToken = strtok( NULL, "." ))
if (!json_object_object_get_ex( json_value, sectionToken, &json_value ) || !json_value) { if (!json_object_object_get_ex( json_value, sectionToken, &json_value ) || !json_value) {
err( "While resolving: %s: Missing value for: %s\n", section, sectionToken ); dbg( "While resolving: %s: Missing value for: %s\n", section, sectionToken );
json_value = NULL; json_value = NULL;
break; break;
} }
@ -553,14 +610,19 @@ static bool mpw_marshall_get_json_boolean(
} }
MPMarshalledUser *mpw_marshall_read_json( MPMarshalledUser *mpw_marshall_read_json(
char *in, const char *masterPassword) { char *in, const char *masterPassword, MPMarshallError *error) {
enum json_tokener_error error = json_tokener_success; *error = MPMarshallErrorInternal;
json_object *json_file = json_tokener_parse_verbose( in, &error );
if (error != json_tokener_success) // Parse JSON.
err( "JSON error: %s\n", json_tokener_error_desc( error ) ); enum json_tokener_error json_error = json_tokener_success;
if (!json_file) json_object *json_file = json_tokener_parse_verbose( in, &json_error );
if (json_error != json_tokener_success)
err( "JSON error: %s\n", json_tokener_error_desc( json_error ) );
if (!json_file) {
*error = MPMarshallErrorStructure;
return NULL; return NULL;
}
// Parse import data. // Parse import data.
MPMasterKey masterKey = NULL; MPMasterKey masterKey = NULL;
@ -568,39 +630,51 @@ MPMarshalledUser *mpw_marshall_read_json(
MPMarshalledUser *user = NULL; MPMarshalledUser *user = NULL;
// Section: "export" // Section: "export"
unsigned int importFormat = (unsigned int)mpw_marshall_get_json_int( json_file, "export.format", 0 ); unsigned int fileFormat = (unsigned int)mpw_marshall_get_json_int( json_file, "export.format", 0 );
if (importFormat < 1) { if (fileFormat < 1) {
err( "Unsupported format: %d\n", importFormat ); err( "Unsupported format: %u\n", fileFormat );
*error = MPMarshallErrorFormat;
return NULL; return NULL;
} }
bool importRedacted = mpw_marshall_get_json_boolean( json_file, "export.redacted", true ); bool fileRedacted = mpw_marshall_get_json_boolean( json_file, "export.redacted", true );
const char *importDate = mpw_marshall_get_json_string( json_file, "export.date", NULL ); const char *fileDate = mpw_marshall_get_json_string( json_file, "export.date", NULL );
// Section: "user" // Section: "user"
unsigned int importAvatar = (unsigned int)mpw_marshall_get_json_int( json_file, "user.avatar", 0 ); unsigned int avatar = (unsigned int)mpw_marshall_get_json_int( json_file, "user.avatar", 0 );
const char *importUserName = mpw_marshall_get_json_string( json_file, "user.full_name", NULL ); const char *fullName = mpw_marshall_get_json_string( json_file, "user.full_name", NULL );
const char *importLastUsed = mpw_marshall_get_json_string( json_file, "user.last_used", NULL ); const char *lastUsed = mpw_marshall_get_json_string( json_file, "user.last_used", NULL );
const char *importKeyID = mpw_marshall_get_json_string( json_file, "user.key_id", NULL ); const char *keyID = mpw_marshall_get_json_string( json_file, "user.key_id", NULL );
MPAlgorithmVersion MPAlgorithmVersion algorithm = (MPAlgorithmVersion)mpw_marshall_get_json_int( json_file, "user.algorithm", MPAlgorithmVersionCurrent );
importAlgorithm = (MPAlgorithmVersion)mpw_marshall_get_json_int( json_file, "user.algorithm", MPAlgorithmVersionCurrent ); if (algorithm < MPAlgorithmVersionFirst || algorithm > MPAlgorithmVersionLast) {
MPSiteType importDefaultType = (MPSiteType)mpw_marshall_get_json_int( json_file, "user.default_type", MPSiteTypeDefault ); err( "Invalid user algorithm version: %u\n", algorithm );
*error = MPMarshallErrorIllegal;
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, return NULL;
importAlgorithm, importUserName, masterPassword ))
return false;
if (importKeyID && !mpw_id_buf_equals( importKeyID, mpw_id_buf( masterKey, MPMasterKeySize ) )) {
err( "Incorrect master password for user import file: %s != %s\n", importKeyID, mpw_id_buf( masterKey, MPMasterKeySize ) );
return false;
} }
if (!(user = mpw_marshall_user( importUserName, masterPassword, importAlgorithm ))) { MPSiteType defaultType = (MPSiteType)mpw_marshall_get_json_int( json_file, "user.default_type", MPSiteTypeDefault );
if (!fullName || !strlen( fullName )) {
err( "Missing value for full name.\n" );
*error = MPMarshallErrorMissing;
return NULL;
}
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, algorithm, fullName, masterPassword )) {
err( "Couldn't derive master key.\n" );
return NULL;
}
if (keyID && !mpw_id_buf_equals( keyID, mpw_id_buf( masterKey, MPMasterKeySize ) )) {
err( "Incorrect master password for user import file: %s != %s\n", keyID, mpw_id_buf( masterKey, MPMasterKeySize ) );
*error = MPMarshallErrorMasterPassword;
return NULL;
}
if (!(user = mpw_marshall_user( fullName, masterPassword, algorithm ))) {
err( "Couldn't allocate a new user.\n" ); err( "Couldn't allocate a new user.\n" );
return false; return NULL;
} }
user->redacted = importRedacted; user->redacted = fileRedacted;
user->avatar = importAvatar; user->avatar = avatar;
user->defaultType = importDefaultType; user->defaultType = defaultType;
user->lastUsed = mpw_mktime( importLastUsed ); user->lastUsed = mpw_mktime( lastUsed );
// Section "sites" // Section "sites"
json_object_iter json_site; json_object_iter json_site;
@ -608,34 +682,44 @@ MPMarshalledUser *mpw_marshall_read_json(
json_object_object_foreachC( json_sites, json_site ) { json_object_object_foreachC( json_sites, json_site ) {
MPSiteType siteType = (MPSiteType)mpw_marshall_get_json_int( json_site.val, "type", user->defaultType ); MPSiteType siteType = (MPSiteType)mpw_marshall_get_json_int( json_site.val, "type", user->defaultType );
uint32_t siteCounter = (uint32_t)mpw_marshall_get_json_int( json_site.val, "counter", 1 ); uint32_t siteCounter = (uint32_t)mpw_marshall_get_json_int( json_site.val, "counter", 1 );
MPAlgorithmVersion algorithm = (MPAlgorithmVersion)mpw_marshall_get_json_int( json_site.val, "algorithm", user->algorithm ); MPAlgorithmVersion siteAlgorithm = (MPAlgorithmVersion)mpw_marshall_get_json_int( json_site.val, "algorithm", user->algorithm );
const char *exportContent = mpw_marshall_get_json_string( json_site.val, "password", NULL ); if (siteAlgorithm < MPAlgorithmVersionFirst || siteAlgorithm > MPAlgorithmVersionLast) {
const char *loginName = mpw_marshall_get_json_string( json_site.val, "login_name", NULL ); err( "Invalid site algorithm version: %u\n", siteAlgorithm );
bool loginGenerated = mpw_marshall_get_json_boolean( json_site.val, "login_generated", false ); *error = MPMarshallErrorIllegal;
unsigned int uses = (unsigned int)mpw_marshall_get_json_int( json_site.val, "uses", 0 ); return NULL;
const char *lastUsed = mpw_marshall_get_json_string( json_site.val, "last_used", NULL ); }
const char *siteContent = mpw_marshall_get_json_string( json_site.val, "password", NULL );
const char *siteLoginName = mpw_marshall_get_json_string( json_site.val, "login_name", NULL );
bool siteLoginGenerated = mpw_marshall_get_json_boolean( json_site.val, "login_generated", false );
unsigned int siteUses = (unsigned int)mpw_marshall_get_json_int( json_site.val, "uses", 0 );
const char *siteLastUsed = mpw_marshall_get_json_string( json_site.val, "last_used", NULL );
json_object *json_site_mpw = mpw_marshall_get_json_section( json_site.val, "_ext_mpw" ); json_object *json_site_mpw = mpw_marshall_get_json_section( json_site.val, "_ext_mpw" );
const char *url = mpw_marshall_get_json_string( json_site_mpw, "url", NULL ); const char *siteURL = mpw_marshall_get_json_string( json_site_mpw, "url", NULL );
MPMarshalledSite *site = mpw_marshall_site( user, json_site.key, siteType, siteCounter, algorithm ); MPMarshalledSite *site = mpw_marshall_site( user, json_site.key, siteType, siteCounter, siteAlgorithm );
site->loginName = loginName; if (!site) {
site->loginGenerated = loginGenerated; err( "Couldn't allocate a new site.\n" );
site->url = url; return NULL;
site->uses = uses; }
site->lastUsed = mpw_mktime( lastUsed );
if (exportContent) { site->loginName = siteLoginName? strdup( siteLoginName ): NULL;
site->loginGenerated = siteLoginGenerated;
site->url = siteURL? strdup( siteURL ): NULL;
site->uses = siteUses;
site->lastUsed = mpw_mktime( siteLastUsed );
if (siteContent && strlen( siteContent )) {
if (user->redacted) { if (user->redacted) {
if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, if (!mpw_update_masterKey( &masterKey, &masterKeyAlgorithm, site->algorithm, fullName, masterPassword )) {
site->algorithm, importUserName, masterPassword )) err( "Couldn't derive master key.\n" );
return false; return NULL;
}
// TODO: Encrypt Personal Passwords // TODO: Encrypt Personal Passwords
//site->content = aes128_cbc( masterKey, exportContent ); //site->content = aes128_cbc( masterKey, exportContent );
} }
else else
site->content = exportContent; site->content = strdup( siteContent );
} }
json_object_iter json_site_question; json_object_iter json_site_question;
@ -645,18 +729,21 @@ MPMarshalledUser *mpw_marshall_read_json(
} }
json_object_put( json_file ); json_object_put( json_file );
*error = MPMarshallSuccess;
return user; return user;
} }
MPMarshalledUser *mpw_marshall_read( MPMarshalledUser *mpw_marshall_read(
char *in, const MPMarshallFormat inFormat, const char *masterPassword) { char *in, const MPMarshallFormat inFormat, const char *masterPassword, MPMarshallError *error) {
switch (inFormat) { switch (inFormat) {
case MPMarshallFormatFlat: case MPMarshallFormatFlat:
return mpw_marshall_read_flat( in, masterPassword ); return mpw_marshall_read_flat( in, masterPassword, error );
case MPMarshallFormatJSON: case MPMarshallFormatJSON:
return mpw_marshall_read_json( in, masterPassword ); return mpw_marshall_read_json( in, masterPassword, error );
} }
err( "Unsupported input format: %u\n", inFormat );
*error = MPMarshallErrorFormat;
return NULL; return NULL;
} }

21
core/c/mpw-marshall.h
View File

@ -35,6 +35,23 @@ typedef enum( unsigned int, MPMarshallFormat ) {
MPMarshallFormatJSON, MPMarshallFormatJSON,
}; };
typedef enum( unsigned int, MPMarshallError ) {
/** The marshalling operation completed successfully. */
MPMarshallSuccess,
/** An error in the structure of the marshall file interrupted marshalling. */
MPMarshallErrorStructure,
/** The marshall file uses an unsupported format version. */
MPMarshallErrorFormat,
/** A required value is missing or not specified. */
MPMarshallErrorMissing,
/** The given master password is not valid. */
MPMarshallErrorMasterPassword,
/** An illegal value was specified. */
MPMarshallErrorIllegal,
/** An internal system error interrupted marshalling. */
MPMarshallErrorInternal,
};
typedef struct MPMarshalledQuestion { typedef struct MPMarshalledQuestion {
const char *keyword; const char *keyword;
} MPMarshalledQuestion; } MPMarshalledQuestion;
@ -74,12 +91,12 @@ typedef struct MPMarshalledUser {
//// Marshalling. //// Marshalling.
bool mpw_marshall_write( bool mpw_marshall_write(
char **out, const MPMarshallFormat outFormat, const MPMarshalledUser *marshalledUser); char **out, const MPMarshallFormat outFormat, const MPMarshalledUser *marshalledUser, MPMarshallError *error);
//// Unmarshalling. //// Unmarshalling.
MPMarshalledUser *mpw_marshall_read( MPMarshalledUser *mpw_marshall_read(
char *in, const MPMarshallFormat inFormat, const char *masterPassword); char *in, const MPMarshallFormat inFormat, const char *masterPassword, MPMarshallError *error);
//// Utilities. //// Utilities.

11
platform-independent/cli-c/cli/mpw-cli.c
View File

@ -226,10 +226,11 @@ int main(int argc, char *const argv[]) {
fclose( mpwSites ); fclose( mpwSites );
// Parse file. // Parse file.
MPMarshalledUser *user = mpw_marshall_read( buf, mpwSitesFormat, masterPassword ); MPMarshallError marshallError = MPMarshallSuccess;
MPMarshalledUser *user = mpw_marshall_read( buf, mpwSitesFormat, masterPassword, &marshallError );
mpw_free_string( buf ); mpw_free_string( buf );
if (!user) if (!user || marshallError != MPMarshallSuccess)
wrn( "Couldn't parse configuration file: %s\n", mpwSitesPath ); wrn( "Couldn't parse configuration file: %s: %d\n", mpwSitesPath, marshallError );
else { else {
// Load defaults. // Load defaults.
@ -257,8 +258,8 @@ int main(int argc, char *const argv[]) {
else { else {
buf = NULL; buf = NULL;
if (!mpw_marshall_write( &buf, MPMarshallFormatJSON, user )) if (!mpw_marshall_write( &buf, MPMarshallFormatJSON, user, &marshallError ) || marshallError != MPMarshallSuccess)
wrn( "Couldn't encode updated configuration file." ); wrn( "Couldn't encode updated configuration file: %s: %d", mpwSitesPath, marshallError );
else if (fwrite( buf, sizeof( char ), strlen( buf ), mpwSites ) != strlen( buf )) else if (fwrite( buf, sizeof( char ), strlen( buf ), mpwSites ) != strlen( buf ))
wrn( "Error while writing updated configuration file: %s: %d\n", mpwSitesPath, ferror( mpwSites ) ); wrn( "Error while writing updated configuration file: %s: %d\n", mpwSitesPath, ferror( mpwSites ) );