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
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
#include <uscxml/config.h>
#include "XHTMLInvoker.h"
#include <glog/logging.h>
#include <uscxml/plugins/ioprocessor/comet/CometIOProcessor.h>
#ifdef BUILD_AS_PLUGINS
#include <Pluma/Connector.hpp>
#endif
#if defined(__APPLE__) and defined(TARGET_OS_MAC)
#include <CoreFoundation/CFBundle.h>
#include <ApplicationServices/ApplicationServices.h>
#endif
namespace uscxml {
#ifdef BUILD_AS_PLUGINS
PLUMA_CONNECTOR
bool connect(pluma::Host& host) {
host.add( new XHTMLInvokerProvider() );
return true;
}
#endif
XHTMLInvoker::XHTMLInvoker() {
}
XHTMLInvoker::~XHTMLInvoker() {
};
boost::shared_ptr<InvokerImpl> XHTMLInvoker::create(InterpreterImpl* interpreter) {
boost::shared_ptr<XHTMLInvoker> invoker = boost::shared_ptr<XHTMLInvoker>(new XHTMLInvoker());
invoker->_interpreter = interpreter;
// _ioProc = interpreter->getFactory()->createIOProcessor("comet", interpreter);
return invoker;
}
bool XHTMLInvoker::httpRecvRequest(const HTTPServer::Request& req) {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
// these are the XHR requests
if (boost::iequals(req.data["header"]["X-Requested-With"].atom, "XMLHttpRequest")) {
if (boost::iequals(req.data["type"].atom, "get")) {
if (_longPoll) {
evhttp_send_error(_longPoll.curlReq, 204, NULL);
_longPoll.curlReq = NULL;
}
_longPoll = req;
if (!_outQueue.empty()) {
send(_outQueue.front());
_outQueue.pop_front();
}
return true;
} else {
Event ev(req);
if (ev.data["header"]["X-SCXML-Name"]) {
ev.name = ev.data["header"]["X-SCXML-Name"].atom;
}
ev.origin = _invokeId;
ev.initContent(req.data["content"].atom);
ev.data.compound["Connection"] = req.data;
// content is already on ev.raw
ev.data.compound["Connection"].compound.erase("content");
returnEvent(ev);
return true;
}
}
// initial request for a document
if (!req.data["query"] && // no query parameters
boost::iequals(req.data["type"].atom, "get") && // request type is GET
(boost::icontains(req.data["header"]["Accept"].atom, "text/html") || // accepts html or
boost::contains(req.data["header"]["User-Agent"].atom, "MSIE")) && // is the internet explorer
req.content.length() == 0) { // no content
HTTPServer::Reply reply(req);
URL templateURL("templates/xhtml-invoker.html");
templateURL.toAbsolute(_interpreter->getBaseURI());
templateURL.download(true);
std::string templateContent = templateURL.getInContent();
boost::replace_all(templateContent, "${scxml.server}", _url);
boost::replace_all(templateContent, "${scxml.invokeId}", _invokeId);
std::string content;
std::stringstream ss;
if (_invokeReq.dom) {
ss << _invokeReq.getFirstDOMElement();
content = ss.str();
} else if(_invokeReq.data) {
ss << _invokeReq.data;
content = ss.str();
} else {
content = _invokeReq.content;
}
boost::replace_all(templateContent, "${scxml.content}", content);
reply.content = templateContent;
reply.headers["Content-Type"] = "text/html";
// aggressive caching in IE will return all XHR get requests instantenously with the template otherwise
reply.headers["Cache-Control"] = "no-cache";
HTTPServer::reply(reply);
// queue invoke request for initial html
_longPoll.curlReq = NULL;
_outQueue = std::deque<SendRequest>();
SendRequest sendReq(_invokeReq);
send(sendReq);
return true;
}
// don't know what to do with other requests
return false;
}
Data XHTMLInvoker::getDataModelVariables() {
Data data;
return data;
}
void XHTMLInvoker::send(const SendRequest& req) {
tthread::lock_guard<tthread::recursive_mutex> lock(_mutex);
if (!_longPoll) {
_outQueue.push_back(req);
return;
}
reply(req, _longPoll);
_longPoll.curlReq = NULL;
}
void XHTMLInvoker::reply(const SendRequest& req, const HTTPServer::Request& longPoll) {
HTTPServer::Reply reply(longPoll);
if (req.dom) {
std::stringstream ss;
Arabica::DOM::Node<std::string> content = req.dom.getDocumentElement();
if (content && boost::iequals(content.getLocalName(), "content")) {
reply.headers["X-SCXML-Type"] = (HAS_ATTR(content, "type") ? ATTR(content, "type") : "replacechildren");
reply.headers["X-SCXML-XPath"] = (HAS_ATTR(content, "xpath") ? ATTR(content, "xpath") : "/html/body");
if (HAS_ATTR(content, "attr"))
reply.headers["X-SCXML-Attr"] = ATTR(content, "attr");
}
ss << req.getFirstDOMElement();
reply.content = ss.str();
reply.headers["Content-Type"] = "application/xml";
} else if (req.data) {
reply.content = Data::toJSON(req.data);
reply.headers["Content-Type"] = "application/json";
} else if (req.content.length() > 0) {
reply.content = req.content;
reply.headers["Content-Type"] = "application/text";
}
if (req.params.find("Content-Type") != req.params.end())
reply.headers["Content-Type"] = req.params.find("Content-Type")->first;
HTTPServer::reply(reply);
}
void XHTMLInvoker::cancel(const std::string sendId) {
}
void XHTMLInvoker::invoke(const InvokeRequest& req) {
_invokeReq = req;
HTTPServer::registerServlet(_interpreter->getName() + "/xhtml/" + req.invokeid, this);
#if defined(__APPLE__) and defined(TARGET_OS_MAC)
// see http://stackoverflow.com/questions/4177744/c-osx-open-default-browser
CFURLRef url = CFURLCreateWithBytes (
NULL, // allocator
(UInt8*)_url.c_str(), // URLBytes
_url.length(), // length
kCFStringEncodingASCII, // encoding
NULL // baseURL
);
LSOpenCFURLRef(url,0);
CFRelease(url);
return;
#endif
#ifdef _WIN32
// see http://support.microsoft.com/kb/224816
ShellExecute(NULL, "open", _url.c_str(), NULL, NULL, SW_SHOWNORMAL);
return;
#endif
#ifdef HAS_XDG_OPEN
std::string systemCmd;
systemCmd = "xdg-open ";
systemCmd += _url;
system(systemCmd.c_str());
return;
#endif
}
}
|
