async_js_callback_handler.cpp
6.39 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
#include "stdafx.h"
#include "etradeclient/browser/async_js_callback_handler.h"
#include <string>
#include <boost/property_tree/ptree.hpp>
#include <boost/algorithm/string.hpp>
#include <boost/ptr_container/ptr_map.hpp>
#include <boost/property_tree/json_parser.hpp>
#include "etradeclient/hardware/hardware_cmd.h"
#include "etradeclient/utility/url_regex.h"
#include "etradeclient/utility/url_config.h"
#include "etradeclient/utility/logging.h"
#include "etradeclient/utility/string_converter.h"
namespace HW
{
namespace PT = boost::property_tree;
// Tag & value of the hardware function request & response string in JSON format.
static const std::string JSON_TAG_CMD = "command";
static const std::string JSON_TAG_FILEID = "fileId";
static const std::string JSON_TAG_DATA = "data";
static const std::string JSON_TAG_SEQ = "seq";
static const std::string JSON_TAG_ANS = "answer";
static const std::string JSON_TAG_ERROR_CODE = "errorCode";
static const std::string JSON_VAL_CMD_ACTIVATE = "activate";
static const std::string JSON_VAL_CMD_RESET = "reset";
static const std::string JSON_VAL_CMD_READ = "read";
static const std::string JSON_VAL_CMD_WRITE = "write";
static const std::string JSON_VAL_ANS_ACTIVATE_ACK = "activate_ack";
static const std::string JSON_VAL_ANS_ACTIVATE_FAILED = "activate_failed";
static const std::string JSON_VAL_ANS_RESET_ACK = "reset_ack";
static const std::string JSON_VAL_ANS_RESET_FAILED = "reset_failed";
static const std::string JSON_VAL_ANS_READ_ACK = "read_ack";
static const std::string JSON_VAL_ANS_READ_FAILED = "read_failed";
static const std::string JSON_VAL_ANS_WRITE_ACK = "write_ack";
static const std::string JSON_VAL_ANS_WRITE_FAILED = "write_failed";
static const std::string JSON_VAL_FILEID_DILI_CARD = "00";
static const std::string JSON_VAL_FILEID_DILI_CARD_BASIC_INFO = "01";
static const std::string JSON_VAL_FILEID_DILI_CARD_SERVICE_INFO = "02"; // Service info.
static const std::string JSON_VAL_FILEID_ID_CARD = "10";
static const std::string JSON_VAL_FILEID_PIN_PAD = "11";
static const std::string JSON_VAL_FILEID_BANK_CARD_NUM = "20";
struct HWRequest
{
std::string cmd;
std::string file_id;
std::string data;
std::string seq; // The sequence number of the request.
};
HWRequest ParseRequest(const std::string& request_json)
{
PT::ptree ptree;
std::stringstream ss;
ss << request_json;
PT::read_json(ss, ptree);
std::string cmd = ptree.get<std::string>(JSON_TAG_CMD);
std::string file_id = ptree.get<std::string>(JSON_TAG_FILEID);
std::string data = ptree.get<std::string>(JSON_TAG_DATA);
std::string seq = ptree.get<std::string>(JSON_TAG_SEQ);
return { cmd, file_id, data, seq };
}
std::string MakeResultJSON(const std::string& answer,
const std::string& file_id,
const std::string& error_code,
const std::string& seq,
const PT::ptree& data)
{
PT::ptree root;
root.put(JSON_TAG_ANS, answer);
root.put(JSON_TAG_FILEID, file_id);
root.put_child(JSON_TAG_DATA, data);
root.put(JSON_TAG_ERROR_CODE, error_code);
root.put(JSON_TAG_SEQ, seq);
std::stringstream ss;
PT::write_json(ss, root, false);
return ss.str();
}
class HWRequestHandler
{
typedef boost::ptr_map<std::string, HardwareCmd> HardwareCmdMap; // Key: cmd+file_id.
public:
HWRequestHandler()
{
m_hw_cmd_map.insert(JSON_VAL_CMD_READ + JSON_VAL_FILEID_ID_CARD, new ReadIDCardCmd());
m_hw_cmd_map.insert(JSON_VAL_CMD_READ + JSON_VAL_FILEID_PIN_PAD, new ReadPINPadCmd());
m_hw_cmd_map.insert(JSON_VAL_CMD_ACTIVATE + JSON_VAL_FILEID_DILI_CARD, new ActivateDILICardCmd());
m_hw_cmd_map.insert(JSON_VAL_CMD_RESET + JSON_VAL_FILEID_DILI_CARD, new ResetDILICardCmd());
m_hw_cmd_map.insert(JSON_VAL_CMD_READ + JSON_VAL_FILEID_DILI_CARD_BASIC_INFO, new ReadDILICardBasicInfoCmd());
m_hw_cmd_map.insert(JSON_VAL_CMD_READ + JSON_VAL_FILEID_DILI_CARD_SERVICE_INFO, new ReadDILICardServiceInfoCmd());
m_hw_cmd_map.insert(JSON_VAL_CMD_WRITE + JSON_VAL_FILEID_DILI_CARD_SERVICE_INFO, new WriteDILICardServiceInfoCmd());
m_hw_cmd_map.insert(JSON_VAL_CMD_READ + JSON_VAL_FILEID_BANK_CARD_NUM, new ReadBankCardNumCmd());
}
std::string HandleRequest(const std::string& request_json)
{
try
{
static const std::string OK = ""; // TODO maybe improve this use the same variable defined by "HardwareCmd".
HWRequest hw_req = ParseRequest(request_json);
LOG_TRACE(L"执行硬件调用请求:" + str_2_wstr("[" + hw_req.cmd + "," +hw_req.file_id + "," + hw_req.seq + "]"));
HardwareCmd::Reply reply = m_hw_cmd_map.at(hw_req.cmd + hw_req.file_id).Execute(hw_req.data);
std::string answer = "";
if (boost::iequals(OK, reply.error_code)) // Succeed.
answer = hw_req.cmd + "_ack";
else
answer = hw_req.cmd + "_failed";
std::string reply_json = MakeResultJSON(answer, hw_req.file_id, reply.error_code, hw_req.seq, reply.data);
LOG_TRACE(L"执行硬件调用结果:" + str_2_wstr("[" + hw_req.cmd + "," + hw_req.file_id + "," + hw_req.seq + "] [" + reply.error_code + "]") + +L"\n");
return reply_json;
}
catch (std::exception& ex)
{
LOG_FATAL(L"执行硬件调用请求发生异常，异常信息： " + str_2_wstr(ex.what()) + L"\n");
return "";
}
}
private:
HardwareCmdMap m_hw_cmd_map;
};
/*Callback handler for call the hardware function.*/
class Handler : public CefMessageRouterBrowserSide::Handler
{
public:
// This handler function will be called due to 'window.cefQuery' call in web page's JavaScript.
virtual bool OnQuery(CefRefPtr<CefBrowser> browser,
CefRefPtr<CefFrame> frame,
int64 query_id,
const CefString& request_json,
bool persistent,
CefRefPtr<Callback> callback) OVERRIDE
{
// Only handle the message from our own host. This is an important security check!
CefString url_ = frame->GetURL();
if (!CheckHost(url_.ToString()))
return false;
callback->Success(m_hw_req_handler.HandleRequest(request_json));
return true;
}
private:
bool CheckHost(const std::string& url_)
{
std::smatch match_res;
if (!URLRegex::Parse(url_, match_res))
return false;
return 0 == URLConfig::Instance().Host().compare(match_res[3].str());
}
private:
HWRequestHandler m_hw_req_handler;
};
} // HW
namespace AsyncJSCallbackHandler
{
// Handler creation. Called from MainViewBrowserHandler.
void Create(MainViewBrowserHandler::MessageHandlerSet& handlers)
{
//TODO: need exception handling here? return true/false indicator?
handlers.emplace(new HW::Handler());
}
} // AsyncJSCallbackHandler