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User message protocol fixes.

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This commit is contained in:
ravinsp
2019-11-11 15:49:01 +05:30
parent 39031c3157
commit 198fe16359
2 changed files with 57 additions and 51 deletions
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63
src/jsonschema/usrmsg_helpers.cpp
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@@ -9,26 +9,26 @@ namespace jsonschema::usrmsg
{
// User JSON message schema version
constexpr const char* SCHEMA_VERSION = "0.1";
constexpr const char *SCHEMA_VERSION = "0.1";
// Separators
constexpr const char* SEP_COMMA = "\",\"";
constexpr const char* SEP_COLON = "\":\"";
constexpr const char* SEP_COMMA_NOQUOTE = ",\"";
constexpr const char* SEP_COLON_NOQUOTE = "\":";
constexpr const char *SEP_COMMA = "\",\"";
constexpr const char *SEP_COLON = "\":\"";
constexpr const char *SEP_COMMA_NOQUOTE = ",\"";
constexpr const char *SEP_COLON_NOQUOTE = "\":";
// Message field names
const char* const FLD_VERSION = "version";
constexpr const char* FLD_TYPE = "type";
constexpr const char* FLD_CHALLENGE = "challenge";
constexpr const char* FLD_SIG = "sig";
constexpr const char* FLD_PUBKEY = "pubkey";
constexpr const char* FLD_INPUT = "input";
constexpr const char* FLD_MAX_LED_SEQ = "max_ledger_seqno";
constexpr const char* FLD_CONTENT = "content";
constexpr const char* FLD_NONCE = "nonce";
constexpr const char* FLD_LCL = "lcl";
constexpr const char* FLD_LCL_SEQ = "lcl_seqno";
const char *const FLD_VERSION = "version";
constexpr const char *FLD_TYPE = "type";
constexpr const char *FLD_CHALLENGE = "challenge";
constexpr const char *FLD_SIG = "sig";
constexpr const char *FLD_PUBKEY = "pubkey";
constexpr const char *FLD_INPUT = "input";
constexpr const char *FLD_MAX_LED_SEQ = "max_ledger_seqno";
constexpr const char *FLD_CONTENT = "content";
constexpr const char *FLD_NONCE = "nonce";
constexpr const char *FLD_LCL = "lcl";
constexpr const char *FLD_LCL_SEQ = "lcl_seqno";
// Length of user random challenge bytes.
const size_t CHALLENGE_LEN = 16;
@@ -41,7 +41,7 @@ const size_t CHALLENGE_LEN = 16;
* @param msg String reference to copy the generated json message string into.
* Message format:
* {
* "version": "<HP version>",
* "version": "<protocol version>",
* "type": "public_challenge",
* "challenge": "<hex challenge string>"
* }
@@ -83,6 +83,12 @@ void create_user_challenge(std::string &msg, std::string &challengehex)
/**
* Constructs a status response message.
* @param msg String reference to copy the generated json message string into.
* Message format:
* {
* "type": "stat_resp",
* "lcl": "<lcl id>"
* "lcl_seqno": <integer>
* }
*/
void create_status_response(std::string &msg)
{
@@ -105,11 +111,24 @@ void create_status_response(std::string &msg)
/**
* Constructs a contract output container message.
* @param msg String reference to copy the generated json message string into.
* @param content The contract output content to be put in the message.
* Message format:
* {
* "type": "contract_output",
* "lcl": "<lcl id>"
* "lcl_seqno": <integer>,
* "content": "<hex encoded contract output>"
* }
* @param content The contract binary output content to be put in the message.
*/
void create_contract_output_container(std::string &msg, std::string_view content)
{
msg.reserve(128);
std::string contenthex;
util::bin2hex(
contenthex,
reinterpret_cast<const unsigned char *>(content.data()),
content.length());
msg.reserve(256);
msg.append("{\"")
.append(FLD_TYPE)
.append(SEP_COLON)
@@ -125,7 +144,7 @@ void create_contract_output_container(std::string &msg, std::string_view content
.append(SEP_COMMA_NOQUOTE)
.append(FLD_CONTENT)
.append(SEP_COLON)
.append(content)
.append(contenthex)
.append("\"}");
}
@@ -204,7 +223,7 @@ int verify_user_challenge_response(std::string &extracted_pubkeyhex, std::string
* Accepted signed input container format:
* {
* "type": "contract_input",
* "content": "<hex encoded input container message>",
* "content": "<stringified json input container message>",
* "sig": "<hex encoded signature of the content>"
* }
* @return 0 on successful extraction. -1 for failure.
@@ -247,7 +266,7 @@ int extract_signed_input_container(
* {
* "nonce": "<random string with optional sorted order>",
* "input": "<hex encoded contract input content>",
* "max_ledger_seqno": 4562712334
* "max_ledger_seqno": <integer>
* }
* @return 0 on succesful extraction. -1 on failure.
*/