static void to_dbus_iter_from_variant(DBusMessageIter* parent_it, const EdbusData& data) {
E_ASSERT(data.is_variant());
EdbusVariant var = data.to_variant();
/* hm... really needed ? */
if(!var.value.is_valid())
return;
const char* value_sig;
String ss;
if(!EdbusData::basic_type(var.value)) {
build_signature(var.value, ss);
value_sig = ss.c_str();
} else
value_sig = from_edbusdata_type_to_dbus_type_string(var.value.type());
/* printf("variant entry is %s\n", value_sig); */
DBusMessageIter sub;
dbus_message_iter_open_container(parent_it, DBUS_TYPE_VARIANT, value_sig, &sub);
to_dbus_iter_from_edbusdata_type(&sub, var.value);
dbus_message_iter_close_container(parent_it, &sub);
}
PyObject *
BlameHunk_orig_committer__get__(BlameHunk *self)
{
if (!self->orig_signature)
Py_RETURN_NONE;
return build_signature((Object*) self, self->orig_signature, "utf-8");
}
PyObject *
Tag_tagger__get__(Tag *self)
{
const git_signature *signature = git_tag_tagger(self->tag);
if (!signature)
Py_RETURN_NONE;
return build_signature((Object*)self, signature, "utf-8");
}
PyObject *
Repository_default_signature__get__(Repository *self)
{
git_signature *sig;
int err;
if ((err = git_signature_default(&sig, self->repo)) < 0)
return Error_set(err);
return build_signature(NULL, sig, "utf-8");
}
PyObject *
Commit_committer__get__(Commit *self)
{
const git_signature *signature;
const char *encoding;
signature = git_commit_committer(self->commit);
encoding = git_commit_message_encoding(self->commit);
return build_signature((Object*)self, signature, encoding);
}
struct curl_slist * hmac_sign(const char * method, const char * path, struct curl_slist *headers, const Credentials * credentials) {
if (valid_credentials(credentials)) {
headers = add_date_header_if_missing(headers);
char * signature = build_signature(method, path, headers, credentials->secret_key);
char * auth_header = build_auth_header(credentials->access_id, signature);
curl_slist_append(headers, auth_header);
free(signature);
free(auth_header);
}
return headers;
}
int hmac_auth(const char * method, const char * path, struct curl_slist *headers, const Credentials * credentials) {
int authenticated = 0;
struct auth_data auth = {NULL, NULL};
memset(&auth, 0, sizeof(auth));
if (extract_authentication_data(headers, &auth)) {
char * computed_signature = build_signature(method, path, headers, credentials->secret_key);
debug("computed = '%s'", computed_signature);
authenticated = strcmp(auth.access_id, credentials->access_id) == 0 && strcmp(auth.signature, computed_signature) == 0;
free(computed_signature);
} else {
debug("No authentication data");
}
if (auth.access_id) free(auth.access_id);
if (auth.signature) free(auth.signature);
return authenticated;
}
static void to_dbus_iter_from_array(DBusMessageIter* parent_it, const EdbusData& data) {
E_ASSERT(data.is_array());
/*
* Marshalling arrays is much simpler than e.g. dict; we already know all elements
* are the same type. The only tricky case is when array elements are another array, dict
* or struct so signature, where build_signature() comes in
*/
EdbusList arr = data.to_array();
/* TODO: allow empty containers ??? */
if(arr.size() < 1)
return;
EdbusList::const_iterator it = arr.begin(), it_end = arr.end();
const char* value_sig;
String ss;
if(arr.value_type_is_container()) {
build_signature(*it, ss);
value_sig = ss.c_str();
} else
value_sig = from_edbusdata_type_to_dbus_type_string(arr.value_type());
/* printf("Array entry signature: %s\n", value_sig); */
/*
* dbus_message_iter_open_container() will by default append container
* signature (at the start of signature array)
*/
DBusMessageIter sub;
dbus_message_iter_open_container(parent_it, DBUS_TYPE_ARRAY, value_sig, &sub);
while(it != it_end) {
to_dbus_iter_from_edbusdata_type(&sub, *it);
++it;
}
dbus_message_iter_close_container(parent_it, &sub);
}
PyObject *
RefLogEntry_committer__get__(RefLogEntry *self)
{
return build_signature((Object*) self, self->signature, "utf-8");
}
/*
* Builds a signature for subtypes, e.g. array, struct or dict elements.
* This function will be called on container subtypes, not container itself
*/
static void build_signature(const EdbusData& data, String& sig) {
if(data.is_dict()) {
EdbusDict dd = data.to_dict();
if(dd.size() < 1)
return;
sig += DBUS_TYPE_ARRAY_AS_STRING;
sig += DBUS_DICT_ENTRY_BEGIN_CHAR;
EdbusDict::const_iterator it = dd.begin();
/* always basic */
sig += from_edbusdata_type_to_dbus_type_string((*it).key.type());
if(EdbusData::basic_type((*it).value))
sig += from_edbusdata_type_to_dbus_type_string((*it).value.type());
else {
/* recurse for more */
build_signature((*it).value, sig);
}
sig += DBUS_DICT_ENTRY_END_CHAR;
} else if(data.is_array()) {
EdbusList arr = data.to_array();
if(arr.size() < 1)
return;
sig += DBUS_TYPE_ARRAY_AS_STRING;
EdbusList::const_iterator it = arr.begin();
if(EdbusData::basic_type(*it))
sig += from_edbusdata_type_to_dbus_type_string((*it).type());
else {
/* recurse for more */
build_signature((*it), sig);
}
} else if(data.is_struct()) {
EdbusList s = data.to_struct();
if(s.size() < 1)
return;
sig += DBUS_STRUCT_BEGIN_CHAR;
EdbusList::const_iterator it = s.begin(), it_end = s.end();
for(; it != it_end; ++it) {
if(EdbusData::basic_type(*it))
sig += from_edbusdata_type_to_dbus_type_string((*it).type());
else {
/* recurse for more */
build_signature((*it), sig);
}
}
sig += DBUS_STRUCT_END_CHAR;
} else {
/* here can be any other basic type and/or variant */
sig += from_edbusdata_type_to_dbus_type_string(data.type());
}
}
static void to_dbus_iter_from_dict(DBusMessageIter* parent_it, const EdbusData& data) {
E_ASSERT(data.is_dict());
EdbusDict dict = data.to_dict();
/* TODO: allow empty containers ??? */
if(dict.size() < 1)
return;
/*
* TODO: check signature size in DBus spec (or use edelib::String here)
*
* Also, this part needs a better code, especially in case when value signature
* is needed. Value can be another dict, struct or array of dicts, struct, variants
* and etc. so I need better singature builder.
*/
char sig[256];
const char* key_sig = from_edbusdata_type_to_dbus_type_string(dict.key_type());
//const char* value_sig = from_edbusdata_type_to_dbus_type_string(dict.value_type());
#if 0
const char* value_sig;
if(dict.value_type() == EDBUS_TYPE_DICT)
value_sig = "a{ss}";
else
value_sig = from_edbusdata_type_to_dbus_type_string(dict.value_type());
#endif
const char* value_sig;
String ss;
if(dict.value_type_is_container()) {
/*
* We already have correct header that represents dict array. Now
* go and recurse into dict value container
*/
EdbusDict::const_iterator first = dict.begin();
build_signature((*first).value, ss);
value_sig = ss.c_str();
} else
value_sig = from_edbusdata_type_to_dbus_type_string(dict.value_type());
/*
* Dicts are serialized as array of dict entries. We first build signature for array
* elements, then iterate over EdbusDict entries and from key/value pairs construct a
* DBus dict entry then append that entry to the array
*
* A signature for dictionary will be 'a{TYPE TYPE}'. dbus_message_iter_open_container() will
* append 'a' to the signature.
*/
snprintf(sig, sizeof(sig), "%c%s%s%c",
DBUS_DICT_ENTRY_BEGIN_CHAR,
key_sig,
value_sig,
DBUS_DICT_ENTRY_END_CHAR);
/* printf("Dict entry signature: %s\n", sig); */
DBusMessageIter sub;
dbus_message_iter_open_container(parent_it, DBUS_TYPE_ARRAY, sig, &sub);
EdbusDict::const_iterator it = dict.begin(), it_end = dict.end();
for(; it != it_end; ++it) {
DBusMessageIter dict_entry_iter;
dbus_message_iter_open_container(&sub, DBUS_TYPE_DICT_ENTRY, 0, &dict_entry_iter);
/*
* append key; it is always basic type
* TODO: here should be assertion check
*/
to_dbus_iter_from_basic_type(&dict_entry_iter, (*it).key);
/* append value, can be any type */
to_dbus_iter_from_edbusdata_type(&dict_entry_iter, (*it).value);
dbus_message_iter_close_container(&sub, &dict_entry_iter);
}
dbus_message_iter_close_container(parent_it, &sub);
}
void oauth_signandappend_oauth_header(const char *reqMethod, struct url_props *url, const char *consumerKey, const char *consumerSecret, const char *authToken, const char *authTokenSecret, const time_t now, const char *postContent, const size_t postContentLen, const char *oauthCallback, const char *oauthVerifier, const char *oauthScope, struct string *out)
{
struct signctx senv;
char _tb[256];
const size_t _tbLen = sprintf(_tb, "%u", (unsigned)now);
struct timeval tv;
struct md5_context md5Ctx;
signctx_init(&senv);
init_signature_seed(&senv, reqMethod, url);
if (postContentLen)
append_signature_params(&senv, postContent, postContent + postContentLen);
string_append(out, "Authorization: OAuth ", 21);
append_signature_param(&senv, "oauth_consumer_key", 18, consumerKey, strlen(consumerKey));
string_appendfmt(out, "oauth_consumer_key=\"%s\"", consumerKey);
append_signature_param(&senv, "oauth_signature_method", 22, "HMAC-SHA1", 9);
string_append(out, ",oauth_signature_method=\"HMAC-SHA1\"", 35);
string_appendfmt(out,",oauth_timestamp=\"%u\"", (uint32_t)now);
append_signature_param(&senv, "oauth_timestamp", 15, _tb, _tbLen);
gettimeofday(&tv, NULL);
uint8_t digest[16];
char digestAlpha[33];
md5_init(&md5Ctx);
md5_update(&md5Ctx, (uint8_t *)&tv.tv_sec, sizeof(tv.tv_sec));
md5_update(&md5Ctx, (uint8_t *)&tv.tv_usec, sizeof(tv.tv_usec));
md5_update(&md5Ctx, (uint8_t *)consumerKey, strlen(consumerKey));
md5_update(&md5Ctx, (uint8_t *)"io.language", 11);
md5_finalize(&md5Ctx, digest);
md5_string((char *)digest, digestAlpha);
const size_t digestAlphaLen = strlen(digestAlpha); // 32
string_appendfmt(out, ",oauth_nonce=\"%.*s\"", digestAlphaLen, digestAlpha);
append_signature_param(&senv, "oauth_nonce", 11, digestAlpha, digestAlphaLen);
string_appendfmt(out, ",oauth_version=\"1.0\"", 20);
append_signature_param(&senv, "oauth_version", 13, "1.0", 3);
if (authToken && *authToken != '\0')
{
string_appendfmt(out, ",oauth_token=\"%s\"", authToken);
append_signature_param(&senv, "oauth_token", 11, authToken, strlen(authToken));
}
if (oauthCallback && *oauthCallback != '\0')
{
string_appendfmt(out, ",oauth_callback=\"%s\"", oauthCallback);
append_signature_param(&senv, "oauth_callback", 14, oauthCallback, strlen(oauthCallback));
}
if (oauthVerifier && *oauthVerifier != '\0')
{
string_appendfmt(out, ",oauth_verifier=\"%s\"", oauthVerifier);
append_signature_param(&senv, "oauth_verifier", 14, oauthVerifier, strlen(oauthVerifier));
}
if (oauthScope && *oauthScope != '\0')
{
string_appendfmt(out, ",scope=\"%s\"", oauthScope);
append_signature_param(&senv, "scope", 5, oauthScope, strlen(oauthScope));
}
build_signature(&senv, "HMAC-SHA1", consumerSecret, authTokenSecret ? authTokenSecret : "");
string_append(out, ",oauth_signature=\"", 18);
string_append_urlencoded_rfc3986(out, string_data(&senv.signatureParamsBuf), string_len(&senv.signatureParamsBuf));
string_append(out, "\"\r\n", 3);
signctx_dealloc(&senv);
}
