neobytes-project/neobytes
neobytes-project/neobytes
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases 1 Wiki Activity

[REST] make selection of output-format mandatory, support dot url syntax

Browse Source 
1. Remove the default format (binary) because `rest/block/<hash>/Hex` would end up delivering binary data.
2. List available formats when chosen format was not found (reduces need for documentation)
3. Change url syntax to dot extension like format chosing (like `rest/tx/<hash>.json`
This commit is contained in:
Jonas Schnelli 2014-11-26 14:17:33 +01:00
parent 108b19f7ef
commit 8a5c9513ba
1 changed files with 57 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
src/rest.cpp
View File

@ -18,6 +18,7 @@ using namespace std;
using namespace json_spirit; using namespace json_spirit;
enum RetFormat { enum RetFormat {
RF_UNDEF,
RF_BINARY, RF_BINARY,
RF_HEX, RF_HEX,
RF_JSON, RF_JSON,
@ -27,12 +28,14 @@ static const struct {
enum RetFormat rf; enum RetFormat rf;
const char* name; const char* name;
} rf_names[] = { } rf_names[] = {
{ RF_BINARY, "binary" }, // default, if match not found {RF_UNDEF, ""},
{RF_BINARY, "bin"},
{RF_HEX, "hex"}, {RF_HEX, "hex"},
{RF_JSON, "json"}, {RF_JSON, "json"},
}; };
class RestErr { class RestErr
{
public: public:
enum HTTPStatusCode status; enum HTTPStatusCode status;
string message; string message;
@ -49,15 +52,34 @@ static RestErr RESTERR(enum HTTPStatusCode status, string message)
return re; return re;
} }
static enum RetFormat ParseDataFormat(const string& format) static enum RetFormat ParseDataFormat(vector<string>& params, const string strReq)
{ {
boost::split(params, strReq, boost::is_any_of("."));
if (params.size() > 1) {
for (unsigned int i = 0; i < ARRAYLEN(rf_names); i++) for (unsigned int i = 0; i < ARRAYLEN(rf_names); i++)
if (format == rf_names[i].name) if (params[1] == rf_names[i].name)
return rf_names[i].rf; return rf_names[i].rf;
}
return rf_names[0].rf; return rf_names[0].rf;
} }
static string AvailableDataFormatsString()
{
string formats = "";
for (unsigned int i = 0; i < ARRAYLEN(rf_names); i++)
if (strlen(rf_names[i].name) > 0) {
formats.append(".");
formats.append(rf_names[i].name);
formats.append(", ");
}
if (formats.length() > 0)
return formats.substr(0, formats.length() - 2);
return formats;
}
static bool ParseHashStr(const string& strReq, uint256& v) static bool ParseHashStr(const string& strReq, uint256& v)
{ {
if (!IsHex(strReq) || (strReq.size() != 64)) if (!IsHex(strReq) || (strReq.size() != 64))
@ -73,9 +95,7 @@ static bool rest_block(AcceptedConnection *conn,
bool fRun) bool fRun)
{ {
vector<string> params; vector<string> params;
boost::split(params, strReq, boost::is_any_of("/")); enum RetFormat rf = ParseDataFormat(params, strReq);
enum RetFormat rf = ParseDataFormat(params.size() > 1 ? params[1] : string(""));
string hashStr = params[0]; string hashStr = params[0];
uint256 hash; uint256 hash;
@ -105,7 +125,7 @@ static bool rest_block(AcceptedConnection *conn,
} }
case RF_HEX: { case RF_HEX: {
string strHex = HexStr(ssBlock.begin(), ssBlock.end()) + "\n";; string strHex = HexStr(ssBlock.begin(), ssBlock.end()) + "\n";
conn->stream() << HTTPReply(HTTP_OK, strHex, fRun, false, "text/plain") << std::flush; conn->stream() << HTTPReply(HTTP_OK, strHex, fRun, false, "text/plain") << std::flush;
return true; return true;
} }
@ -116,6 +136,10 @@ static bool rest_block(AcceptedConnection *conn,
conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush; conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush;
return true; return true;
} }
default: {
throw RESTERR(HTTP_NOT_FOUND, "output format not found (available: " + AvailableDataFormatsString() + ")");
}
} }
// not reached // not reached
@ -128,9 +152,7 @@ static bool rest_tx(AcceptedConnection *conn,
bool fRun) bool fRun)
{ {
vector<string> params; vector<string> params;
boost::split(params, strReq, boost::is_any_of("/")); enum RetFormat rf = ParseDataFormat(params, strReq);
enum RetFormat rf = ParseDataFormat(params.size() > 1 ? params[1] : string(""));
string hashStr = params[0]; string hashStr = params[0];
uint256 hash; uint256 hash;
@ -153,7 +175,7 @@ static bool rest_tx(AcceptedConnection *conn,
} }
case RF_HEX: { case RF_HEX: {
string strHex = HexStr(ssTx.begin(), ssTx.end()) + "\n";; string strHex = HexStr(ssTx.begin(), ssTx.end()) + "\n";
conn->stream() << HTTPReply(HTTP_OK, strHex, fRun, false, "text/plain") << std::flush; conn->stream() << HTTPReply(HTTP_OK, strHex, fRun, false, "text/plain") << std::flush;
return true; return true;
} }
@ -165,6 +187,10 @@ static bool rest_tx(AcceptedConnection *conn,
conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush; conn->stream() << HTTPReply(HTTP_OK, strJSON, fRun) << std::flush;
return true; return true;
} }
default: {
throw RESTERR(HTTP_NOT_FOUND, "output format not found (available: " + AvailableDataFormatsString() + ")");
}
} }
// not reached // not reached
@ -199,8 +225,7 @@ bool HTTPReq_REST(AcceptedConnection *conn,
return uri_prefixes[i].handler(conn, strReq, mapHeaders, fRun); return uri_prefixes[i].handler(conn, strReq, mapHeaders, fRun);
} }
} }
} } catch (RestErr& re) {
catch (RestErr& re) {
conn->stream() << HTTPReply(re.status, re.message + "\r\n", false, false, "text/plain") << std::flush; conn->stream() << HTTPReply(re.status, re.message + "\r\n", false, false, "text/plain") << std::flush;
return false; return false;
} }