| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: url.cpp |
| 3 | // Purpose: URL parser |
| 4 | // Author: Guilhem Lavaux |
| 5 | // Modified by: |
| 6 | // Created: 20/07/1997 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 1997, 1998 Guilhem Lavaux |
| 9 | // Licence: wxWindows license |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "url.h" |
| 14 | #endif |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #ifdef __BORLANDC__ |
| 20 | #pragma hdrstop |
| 21 | #endif |
| 22 | |
| 23 | #if wxUSE_SOCKETS |
| 24 | |
| 25 | #ifndef WX_PRECOMP |
| 26 | #endif |
| 27 | |
| 28 | #include <string.h> |
| 29 | #include <ctype.h> |
| 30 | |
| 31 | // wxWindows headers |
| 32 | #include <wx/string.h> |
| 33 | #include <wx/list.h> |
| 34 | #include <wx/utils.h> |
| 35 | |
| 36 | // wxSocket header |
| 37 | #include "wx/url.h" |
| 38 | |
| 39 | #if !USE_SHARED_LIBRARY |
| 40 | IMPLEMENT_CLASS(wxProtoInfo, wxObject) |
| 41 | IMPLEMENT_CLASS(wxURL, wxObject) |
| 42 | #endif |
| 43 | |
| 44 | // Protocols list |
| 45 | wxProtoInfo *wxURL::g_protocols = NULL; |
| 46 | wxHTTP *wxURL::g_proxy; |
| 47 | |
| 48 | ///////////////////////////////////////////////////////////////// |
| 49 | // wxURL //////////////////////////////////////////////////////// |
| 50 | ///////////////////////////////////////////////////////////////// |
| 51 | |
| 52 | /* |
| 53 | * -------------------------------------------------------------- |
| 54 | * --------- wxURL CONSTRUCTOR DESTRUCTOR ----------------------- |
| 55 | * -------------------------------------------------------------- |
| 56 | */ |
| 57 | |
| 58 | wxURL::wxURL(const wxString& url) |
| 59 | { |
| 60 | m_protocol = NULL; |
| 61 | if (g_proxy->IsConnected()) { |
| 62 | m_protocol = g_proxy; |
| 63 | m_protoname = "proxy"; |
| 64 | m_path = url; |
| 65 | return; |
| 66 | } |
| 67 | m_url = url; |
| 68 | m_error = wxURL_NOERR; |
| 69 | ParseURL(); |
| 70 | } |
| 71 | |
| 72 | bool wxURL::ParseURL() |
| 73 | { |
| 74 | wxString last_url = m_url; |
| 75 | |
| 76 | // Clean up |
| 77 | CleanData(); |
| 78 | |
| 79 | // Extract protocol name |
| 80 | if (!PrepProto(last_url)) { |
| 81 | m_error = wxURL_SNTXERR; |
| 82 | return FALSE; |
| 83 | } |
| 84 | |
| 85 | // Find and create the protocol object |
| 86 | if (!FetchProtocol()) { |
| 87 | m_error = wxURL_NOPROTO; |
| 88 | return FALSE; |
| 89 | } |
| 90 | |
| 91 | // Do we need a host name ? |
| 92 | if (m_protoinfo->m_needhost) { |
| 93 | // Extract it |
| 94 | if (!PrepHost(last_url)) { |
| 95 | m_error = wxURL_SNTXERR; |
| 96 | return FALSE; |
| 97 | } |
| 98 | } |
| 99 | |
| 100 | // Extract full path |
| 101 | if (!PrepPath(last_url)) { |
| 102 | m_error = wxURL_NOPATH; |
| 103 | return FALSE; |
| 104 | } |
| 105 | |
| 106 | m_error = wxURL_NOERR; |
| 107 | return TRUE; |
| 108 | } |
| 109 | |
| 110 | void wxURL::CleanData() |
| 111 | { |
| 112 | if (m_protoname != "proxy") |
| 113 | delete m_protocol; |
| 114 | } |
| 115 | |
| 116 | wxURL::~wxURL() |
| 117 | { |
| 118 | CleanData(); |
| 119 | } |
| 120 | |
| 121 | /* |
| 122 | * -------------------------------------------------------------- |
| 123 | * --------- wxURL urls decoders -------------------------------- |
| 124 | * -------------------------------------------------------------- |
| 125 | */ |
| 126 | bool wxURL::PrepProto(wxString& url) |
| 127 | { |
| 128 | int pos; |
| 129 | |
| 130 | // Find end |
| 131 | pos = url.Find(':'); |
| 132 | if (pos == -1) |
| 133 | return FALSE; |
| 134 | |
| 135 | m_protoname = url(0, pos); |
| 136 | |
| 137 | url = url(pos+1, url.Length()); |
| 138 | |
| 139 | return TRUE; |
| 140 | } |
| 141 | |
| 142 | bool wxURL::PrepHost(wxString& url) |
| 143 | { |
| 144 | wxString temp_url; |
| 145 | int pos, pos2; |
| 146 | |
| 147 | if ((url.GetChar(0) != '/') || (url.GetChar(1) != '/')) |
| 148 | return FALSE; |
| 149 | |
| 150 | url = url(2, url.Length()); |
| 151 | |
| 152 | pos = url.Find('/'); |
| 153 | if (pos == -1) |
| 154 | pos = url.Length(); |
| 155 | |
| 156 | if (pos == 0) |
| 157 | return FALSE; |
| 158 | |
| 159 | temp_url = url(0, pos); |
| 160 | url = url(url.Find('/'), url.Length()); |
| 161 | |
| 162 | // Retrieve service number |
| 163 | pos2 = temp_url.Find(':', TRUE); |
| 164 | if (pos2 != -1 && pos2 < pos) { |
| 165 | m_servname = temp_url(pos2+1, pos); |
| 166 | if (!m_servname.IsNumber()) |
| 167 | return FALSE; |
| 168 | temp_url = temp_url(0, pos2); |
| 169 | } |
| 170 | |
| 171 | // Retrieve user and password. |
| 172 | pos2 = temp_url.Find('@'); |
| 173 | // Even if pos2 equals -1, this code is right. |
| 174 | m_hostname = temp_url(pos2+1, temp_url.Length()); |
| 175 | |
| 176 | m_user = ""; |
| 177 | m_password = ""; |
| 178 | |
| 179 | if (pos2 == -1) |
| 180 | return TRUE; |
| 181 | |
| 182 | temp_url = temp_url(0, pos2); |
| 183 | pos2 = temp_url.Find(':'); |
| 184 | |
| 185 | if (pos2 == -1) |
| 186 | return FALSE; |
| 187 | |
| 188 | m_user = temp_url(0, pos2); |
| 189 | m_password = temp_url(pos2+1, url.Length()); |
| 190 | |
| 191 | return TRUE; |
| 192 | } |
| 193 | |
| 194 | bool wxURL::PrepPath(wxString& url) |
| 195 | { |
| 196 | if (url.Length() != 0) |
| 197 | m_path = url; |
| 198 | else |
| 199 | m_path = "/"; |
| 200 | return TRUE; |
| 201 | } |
| 202 | |
| 203 | bool wxURL::FetchProtocol() |
| 204 | { |
| 205 | wxProtoInfo *info = g_protocols; |
| 206 | |
| 207 | while (info) { |
| 208 | if (m_protoname == info->m_protoname) { |
| 209 | if (m_servname.IsNull()) |
| 210 | m_servname = info->m_servname; |
| 211 | |
| 212 | m_protoinfo = info; |
| 213 | m_protocol = (wxProtocol *)m_protoinfo->m_cinfo->CreateObject(); |
| 214 | wxSocketHandler::Master().Register(m_protocol); |
| 215 | return TRUE; |
| 216 | } |
| 217 | info = info->next; |
| 218 | } |
| 219 | return FALSE; |
| 220 | } |
| 221 | |
| 222 | /* |
| 223 | * -------------------------------------------------------------- |
| 224 | * --------- wxURL get ------------------------------------------ |
| 225 | * -------------------------------------------------------------- |
| 226 | */ |
| 227 | wxInputStream *wxURL::GetInputStream(void) |
| 228 | { |
| 229 | wxIPV4address addr; |
| 230 | wxInputStream *the_i_stream = NULL; |
| 231 | |
| 232 | if (!m_protocol) |
| 233 | if (!ParseURL()) |
| 234 | return NULL; |
| 235 | |
| 236 | if (!m_protocol) { |
| 237 | m_error = wxURL_NOPROTO; |
| 238 | return NULL; |
| 239 | } |
| 240 | |
| 241 | m_error = wxURL_NOERR; |
| 242 | if (m_user != "") { |
| 243 | m_protocol->SetUser(m_user); |
| 244 | m_protocol->SetPassword(m_password); |
| 245 | } |
| 246 | |
| 247 | if (m_protoinfo->m_needhost) { |
| 248 | if (!addr.Hostname(m_hostname)) { |
| 249 | m_error = wxURL_NOHOST; |
| 250 | return NULL; |
| 251 | } |
| 252 | |
| 253 | addr.Service(m_servname); |
| 254 | |
| 255 | if (!m_protocol->Connect(addr, TRUE)) // Watcom needs the 2nd arg for some reason |
| 256 | { |
| 257 | m_error = wxURL_CONNERR; |
| 258 | return NULL; |
| 259 | } |
| 260 | } |
| 261 | |
| 262 | the_i_stream = m_protocol->GetInputStream(m_path); |
| 263 | if (!the_i_stream) { |
| 264 | m_error = wxURL_PROTOERR; |
| 265 | return NULL; |
| 266 | } |
| 267 | |
| 268 | return the_i_stream; |
| 269 | } |
| 270 | |
| 271 | void wxURL::SetDefaultProxy(const wxString& url_proxy) |
| 272 | { |
| 273 | g_proxy->Close(); |
| 274 | |
| 275 | if (url_proxy.IsNull()) |
| 276 | return; |
| 277 | |
| 278 | wxString tmp_str = url_proxy; |
| 279 | int pos = tmp_str.Find(':'); |
| 280 | wxString hostname = tmp_str(0, pos), |
| 281 | port = tmp_str(pos, tmp_str.Length()-pos); |
| 282 | wxIPV4address addr; |
| 283 | |
| 284 | addr.Hostname(hostname); |
| 285 | addr.Service(port); |
| 286 | |
| 287 | g_proxy->Connect(addr, TRUE); // Watcom needs the 2nd arg for some reason |
| 288 | } |
| 289 | |
| 290 | void wxURL::SetProxy(const wxString& url_proxy) |
| 291 | { |
| 292 | if (url_proxy.IsNull()) { |
| 293 | m_proxy.Close(); |
| 294 | return; |
| 295 | } |
| 296 | |
| 297 | CleanData(); |
| 298 | |
| 299 | wxString tmp_str; |
| 300 | wxString hostname, port; |
| 301 | int pos; |
| 302 | wxIPV4address addr; |
| 303 | |
| 304 | tmp_str = url_proxy; |
| 305 | pos = tmp_str.Find(':'); |
| 306 | hostname = tmp_str(0, pos); |
| 307 | port = tmp_str(pos, tmp_str.Length()-pos); |
| 308 | |
| 309 | addr.Hostname(hostname); |
| 310 | addr.Service(port); |
| 311 | |
| 312 | m_proxy.Connect(addr, TRUE); // Watcom needs the 2nd arg for some reason |
| 313 | |
| 314 | m_protocol = &m_proxy; |
| 315 | m_protoname = "proxy"; |
| 316 | m_path = url_proxy; |
| 317 | } |
| 318 | |
| 319 | #endif |
| 320 | // wxUSE_SOCKETS |