NS-3 based Named Data Networking (NDN) simulator
ndnSIM 2.5: NDN, CCN, CCNx, content centric networks
API Documentation
uri.hpp
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1 /*
2  * Copyright (c) 2014, Peter Thorson. All rights reserved.
3  *
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27 
28 #ifndef WEBSOCKETPP_URI_HPP
29 #define WEBSOCKETPP_URI_HPP
30 
31 #include <websocketpp/error.hpp>
32 
35 
36 #include <algorithm>
37 #include <sstream>
38 #include <string>
39 
40 namespace websocketpp {
41 
42 // TODO: figure out why this fixes horrible linking errors.
43 
45 static uint16_t const uri_default_port = 80;
47 static uint16_t const uri_default_secure_port = 443;
48 
49 class uri {
50 public:
51  explicit uri(std::string const & uri_string) : m_valid(false) {
52  std::string::const_iterator it;
53  std::string::const_iterator temp;
54 
55  int state = 0;
56 
57  it = uri_string.begin();
58  size_t uri_len = uri_string.length();
59 
60  if (uri_len >= 7 && std::equal(it,it+6,"wss://")) {
61  m_secure = true;
62  m_scheme = "wss";
63  it += 6;
64  } else if (uri_len >= 6 && std::equal(it,it+5,"ws://")) {
65  m_secure = false;
66  m_scheme = "ws";
67  it += 5;
68  } else if (uri_len >= 8 && std::equal(it,it+7,"http://")) {
69  m_secure = false;
70  m_scheme = "http";
71  it += 7;
72  } else if (uri_len >= 9 && std::equal(it,it+8,"https://")) {
73  m_secure = true;
74  m_scheme = "https";
75  it += 8;
76  } else {
77  return;
78  }
79 
80  // extract host.
81  // either a host string
82  // an IPv4 address
83  // or an IPv6 address
84  if (*it == '[') {
85  ++it;
86  // IPv6 literal
87  // extract IPv6 digits until ]
88 
89  // TODO: this doesn't work on g++... not sure why
90  //temp = std::find(it,it2,']');
91 
92  temp = it;
93  while (temp != uri_string.end()) {
94  if (*temp == ']') {
95  break;
96  }
97  ++temp;
98  }
99 
100  if (temp == uri_string.end()) {
101  return;
102  } else {
103  // validate IPv6 literal parts
104  // can contain numbers, a-f and A-F
105  m_host.append(it,temp);
106  }
107  it = temp+1;
108  if (it == uri_string.end()) {
109  state = 2;
110  } else if (*it == '/') {
111  state = 2;
112  ++it;
113  } else if (*it == ':') {
114  state = 1;
115  ++it;
116  } else {
117  // problem
118  return;
119  }
120  } else {
121  // IPv4 or hostname
122  // extract until : or /
123  while (state == 0) {
124  if (it == uri_string.end()) {
125  state = 2;
126  break;
127  } else if (*it == '/') {
128  state = 2;
129  } else if (*it == ':') {
130  // end hostname start port
131  state = 1;
132  } else {
133  m_host += *it;
134  }
135  ++it;
136  }
137  }
138 
139  // parse port
140  std::string port;
141  while (state == 1) {
142  if (it == uri_string.end()) {
143  // state is not used after this point presently.
144  // this should be re-enabled if it ever is needed in a future
145  // refactoring
146  //state = 3;
147  break;
148  } else if (*it == '/') {
149  state = 3;
150  } else {
151  port += *it;
152  }
153  ++it;
154  }
155 
156  lib::error_code ec;
157  m_port = get_port_from_string(port, ec);
158 
159  if (ec) {
160  return;
161  }
162 
163  m_resource = "/";
164  m_resource.append(it,uri_string.end());
165 
166 
167  m_valid = true;
168  }
169 
170  uri(bool secure, std::string const & host, uint16_t port,
171  std::string const & resource)
172  : m_scheme(secure ? "wss" : "ws")
173  , m_host(host)
174  , m_resource(resource.empty() ? "/" : resource)
175  , m_port(port)
176  , m_secure(secure)
177  , m_valid(true) {}
178 
179  uri(bool secure, std::string const & host, std::string const & resource)
180  : m_scheme(secure ? "wss" : "ws")
181  , m_host(host)
182  , m_resource(resource.empty() ? "/" : resource)
183  , m_port(secure ? uri_default_secure_port : uri_default_port)
184  , m_secure(secure)
185  , m_valid(true) {}
186 
187  uri(bool secure, std::string const & host, std::string const & port,
188  std::string const & resource)
189  : m_scheme(secure ? "wss" : "ws")
190  , m_host(host)
191  , m_resource(resource.empty() ? "/" : resource)
192  , m_secure(secure)
193  {
194  lib::error_code ec;
195  m_port = get_port_from_string(port,ec);
196  m_valid = !ec;
197  }
198 
199  uri(std::string const & scheme, std::string const & host, uint16_t port,
200  std::string const & resource)
201  : m_scheme(scheme)
202  , m_host(host)
203  , m_resource(resource.empty() ? "/" : resource)
204  , m_port(port)
205  , m_secure(scheme == "wss" || scheme == "https")
206  , m_valid(true) {}
207 
208  uri(std::string scheme, std::string const & host, std::string const & resource)
209  : m_scheme(scheme)
210  , m_host(host)
211  , m_resource(resource.empty() ? "/" : resource)
212  , m_port((scheme == "wss" || scheme == "https") ? uri_default_secure_port : uri_default_port)
213  , m_secure(scheme == "wss" || scheme == "https")
214  , m_valid(true) {}
215 
216  uri(std::string const & scheme, std::string const & host,
217  std::string const & port, std::string const & resource)
218  : m_scheme(scheme)
219  , m_host(host)
220  , m_resource(resource.empty() ? "/" : resource)
221  , m_secure(scheme == "wss" || scheme == "https")
222  {
223  lib::error_code ec;
224  m_port = get_port_from_string(port,ec);
225  m_valid = !ec;
226  }
227 
228  bool get_valid() const {
229  return m_valid;
230  }
231 
232  bool get_secure() const {
233  return m_secure;
234  }
235 
236  std::string const & get_scheme() const {
237  return m_scheme;
238  }
239 
240  std::string const & get_host() const {
241  return m_host;
242  }
243 
244  std::string get_host_port() const {
245  if (m_port == (m_secure ? uri_default_secure_port : uri_default_port)) {
246  return m_host;
247  } else {
248  std::stringstream p;
249  p << m_host << ":" << m_port;
250  return p.str();
251  }
252  }
253 
254  std::string get_authority() const {
255  std::stringstream p;
256  p << m_host << ":" << m_port;
257  return p.str();
258  }
259 
260  uint16_t get_port() const {
261  return m_port;
262  }
263 
264  std::string get_port_str() const {
265  std::stringstream p;
266  p << m_port;
267  return p.str();
268  }
269 
270  std::string const & get_resource() const {
271  return m_resource;
272  }
273 
274  std::string str() const {
275  std::stringstream s;
276 
277  s << m_scheme << "://" << m_host;
278 
279  if (m_port != (m_secure ? uri_default_secure_port : uri_default_port)) {
280  s << ":" << m_port;
281  }
282 
283  s << m_resource;
284  return s.str();
285  }
286 
288 
294  std::string get_query() const {
295  std::size_t found = m_resource.find('?');
296  if (found != std::string::npos) {
297  return m_resource.substr(found + 1);
298  } else {
299  return "";
300  }
301  }
302 
303  // get fragment
304 
305  // hi <3
306 
307  // get the string representation of this URI
308 
309  //std::string base() const; // is this still needed?
310 
311  // setter methods set some or all (in the case of parse) based on the input.
312  // These functions throw a uri_exception on failure.
313  /*void set_uri(const std::string& uri);
314 
315  void set_secure(bool secure);
316  void set_host(const std::string& host);
317  void set_port(uint16_t port);
318  void set_port(const std::string& port);
319  void set_resource(const std::string& resource);*/
320 private:
321  uint16_t get_port_from_string(std::string const & port, lib::error_code &
322  ec) const
323  {
324  ec = lib::error_code();
325 
326  if (port.empty()) {
327  return (m_secure ? uri_default_secure_port : uri_default_port);
328  }
329 
330  unsigned int t_port = static_cast<unsigned int>(atoi(port.c_str()));
331 
332  if (t_port > 65535) {
334  }
335 
336  if (t_port == 0) {
338  }
339 
340  return static_cast<uint16_t>(t_port);
341  }
342 
343  std::string m_scheme;
344  std::string m_host;
345  std::string m_resource;
346  uint16_t m_port;
347  bool m_secure;
348  bool m_valid;
349 };
350 
352 typedef lib::shared_ptr<uri> uri_ptr;
353 
354 } // namespace websocketpp
355 
356 #endif // WEBSOCKETPP_URI_HPP
std::string get_host_port() const
Definition: uri.hpp:244
lib::error_code make_error_code(error::value e)
Definition: error.hpp:235
span_CONFIG_SIZE_TYPE size_t
Definition: span-lite.hpp:565
bool get_valid() const
Definition: uri.hpp:228
Invalid port in URI.
Definition: error.hpp:120
std::string get_authority() const
Definition: uri.hpp:254
uri(std::string const &scheme, std::string const &host, std::string const &port, std::string const &resource)
Definition: uri.hpp:216
uri(bool secure, std::string const &host, std::string const &port, std::string const &resource)
Definition: uri.hpp:187
std::string str() const
Definition: uri.hpp:274
uri(std::string scheme, std::string const &host, std::string const &resource)
Definition: uri.hpp:208
uri(bool secure, std::string const &host, std::string const &resource)
Definition: uri.hpp:179
bool get_secure() const
Definition: uri.hpp:232
std::string get_query() const
Return the query portion.
Definition: uri.hpp:294
Namespace for the WebSocket++ project.
Definition: base64.hpp:41
std::string get_port_str() const
Definition: uri.hpp:264
lib::shared_ptr< uri > uri_ptr
Pointer to a URI.
Definition: uri.hpp:352
uri(std::string const &uri_string)
Definition: uri.hpp:51
std::string const & get_scheme() const
Definition: uri.hpp:236
std::string const & get_resource() const
Definition: uri.hpp:270
uint16_t get_port() const
Definition: uri.hpp:260
static uint16_t const uri_default_port
Default port for ws://.
Definition: uri.hpp:45
uri(std::string const &scheme, std::string const &host, uint16_t port, std::string const &resource)
Definition: uri.hpp:199
std::string const & get_host() const
Definition: uri.hpp:240
static uint16_t const uri_default_secure_port
Default port for wss://.
Definition: uri.hpp:47
uri(bool secure, std::string const &host, uint16_t port, std::string const &resource)
Definition: uri.hpp:170