root / Assets / Plugins / UnityHTTP / CookieJar.cs @ 9:37719e88568d
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| 1 | using System; |
|---|---|
| 2 | using System.Collections.Generic; |
| 3 | using System.Text.RegularExpressions; |
| 4 | |
| 5 | // Based on node-cookiejar (https://github.com/bmeck/node-cookiejar) |
| 6 | |
| 7 | namespace HTTP |
| 8 | {
|
| 9 | public class CookieAccessInfo |
| 10 | {
|
| 11 | public string domain = null; |
| 12 | public string path = null; |
| 13 | public bool secure = false; |
| 14 | public bool scriptAccessible = true; |
| 15 | |
| 16 | public CookieAccessInfo( string domain, string path ) |
| 17 | {
|
| 18 | this.domain = domain; |
| 19 | this.path = path; |
| 20 | } |
| 21 | |
| 22 | public CookieAccessInfo( string domain, string path, bool secure ) |
| 23 | {
|
| 24 | this.domain = domain; |
| 25 | this.path = path; |
| 26 | this.secure = secure; |
| 27 | } |
| 28 | |
| 29 | public CookieAccessInfo( string domain, string path, bool secure, bool scriptAccessible ) |
| 30 | {
|
| 31 | this.domain = domain; |
| 32 | this.path = path; |
| 33 | this.secure = secure; |
| 34 | this.scriptAccessible = scriptAccessible; |
| 35 | } |
| 36 | |
| 37 | public CookieAccessInfo( Cookie cookie ) |
| 38 | {
|
| 39 | this.domain = cookie.domain; |
| 40 | this.path = cookie.path; |
| 41 | this.secure = cookie.secure; |
| 42 | this.scriptAccessible = cookie.scriptAccessible; |
| 43 | } |
| 44 | } |
| 45 | |
| 46 | public class Cookie |
| 47 | {
|
| 48 | public string name = null; |
| 49 | public string value = null; |
| 50 | public DateTime expirationDate = DateTime.MaxValue; |
| 51 | public string path = null; |
| 52 | public string domain = null; |
| 53 | public bool secure = false; |
| 54 | public bool scriptAccessible = true; |
| 55 | |
| 56 | private static string cookiePattern = "\\s*([^=]+)(?:=((?:.|\\n)*))?"; |
| 57 | |
| 58 | public Cookie( string cookieString ) |
| 59 | {
|
| 60 | string[] parts = cookieString.Split( ';' ); |
| 61 | foreach ( string part in parts ) |
| 62 | {
|
| 63 | |
| 64 | Match match = Regex.Match( part, cookiePattern ); |
| 65 | |
| 66 | if ( !match.Success ) |
| 67 | {
|
| 68 | throw new Exception( "Could not parse cookie string: " + cookieString ); |
| 69 | } |
| 70 | |
| 71 | if ( this.name == null ) |
| 72 | {
|
| 73 | this.name = match.Groups[ 1 ].Value; |
| 74 | this.value = match.Groups[ 2 ].Value; |
| 75 | continue; |
| 76 | } |
| 77 | |
| 78 | switch( match.Groups[ 1 ].Value.ToLower() ) |
| 79 | {
|
| 80 | case "httponly": |
| 81 | this.scriptAccessible = false; |
| 82 | break; |
| 83 | case "expires": |
| 84 | this.expirationDate = DateTime.Parse( match.Groups[ 2 ].Value ); |
| 85 | break; |
| 86 | case "path": |
| 87 | this.path = match.Groups[ 2 ].Value; |
| 88 | break; |
| 89 | case "domain": |
| 90 | this.domain = match.Groups[ 2 ].Value; |
| 91 | break; |
| 92 | case "secure": |
| 93 | this.secure = true; |
| 94 | break; |
| 95 | default: |
| 96 | // TODO: warn of unknown cookie setting? |
| 97 | break; |
| 98 | } |
| 99 | } |
| 100 | } |
| 101 | |
| 102 | public bool Matches( CookieAccessInfo accessInfo ) |
| 103 | {
|
| 104 | if ( this.secure != accessInfo.secure |
| 105 | || !this.CollidesWith( accessInfo ) ) |
| 106 | {
|
| 107 | return false; |
| 108 | } |
| 109 | |
| 110 | return true; |
| 111 | } |
| 112 | |
| 113 | public bool CollidesWith( CookieAccessInfo accessInfo ) |
| 114 | {
|
| 115 | if ( ( this.path != null && accessInfo.path == null ) || ( this.domain != null && accessInfo.domain == null ) ) |
| 116 | {
|
| 117 | return false; |
| 118 | } |
| 119 | |
| 120 | if ( this.path != null && accessInfo.path != null && accessInfo.path.IndexOf( this.path ) != 0 ) |
| 121 | {
|
| 122 | return false; |
| 123 | } |
| 124 | |
| 125 | if ( this.domain == accessInfo.domain ) |
| 126 | {
|
| 127 | return true; |
| 128 | } |
| 129 | else if ( this.domain != null && this.domain.Length >= 1 && this.domain[ 0 ] == '.' ) |
| 130 | {
|
| 131 | int wildcard = accessInfo.domain.IndexOf( this.domain.Substring( 1 ) ); |
| 132 | if( wildcard == -1 || wildcard != accessInfo.domain.Length - this.domain.Length + 1 ) |
| 133 | {
|
| 134 | return false; |
| 135 | } |
| 136 | } |
| 137 | else if ( this.domain != null ) |
| 138 | {
|
| 139 | return false; |
| 140 | } |
| 141 | |
| 142 | return true; |
| 143 | } |
| 144 | |
| 145 | public string ToValueString() |
| 146 | {
|
| 147 | return this.name + "=" + this.value; |
| 148 | } |
| 149 | |
| 150 | public override string ToString() |
| 151 | {
|
| 152 | List< string > elements = new List< string >(); |
| 153 | elements.Add( this.name + "=" + this.value ); |
| 154 | |
| 155 | if( this.expirationDate != DateTime.MaxValue ) |
| 156 | {
|
| 157 | elements.Add( "expires=" + this.expirationDate.ToString() ); |
| 158 | } |
| 159 | |
| 160 | if( this.domain != null ) |
| 161 | {
|
| 162 | elements.Add( "domain=" + this.domain ); |
| 163 | } |
| 164 | |
| 165 | if( this.path != null ) |
| 166 | {
|
| 167 | elements.Add( "path=" + this.path ); |
| 168 | } |
| 169 | |
| 170 | if( this.secure ) |
| 171 | {
|
| 172 | elements.Add( "secure" ); |
| 173 | } |
| 174 | |
| 175 | if( this.scriptAccessible == false ) |
| 176 | {
|
| 177 | elements.Add( "httponly" ); |
| 178 | } |
| 179 | |
| 180 | return String.Join( "; ", elements.ToArray() ); |
| 181 | } |
| 182 | } |
| 183 | |
| 184 | public delegate void ContentsChangedDelegate(); |
| 185 | |
| 186 | public class CookieJar |
| 187 | {
|
| 188 | private static string version = "v2"; |
| 189 | private object cookieJarLock = new object(); |
| 190 | |
| 191 | private static CookieJar instance; |
| 192 | public Dictionary< string, List< Cookie > > cookies; |
| 193 | |
| 194 | public ContentsChangedDelegate ContentsChanged; |
| 195 | |
| 196 | public static CookieJar Instance |
| 197 | {
|
| 198 | get |
| 199 | {
|
| 200 | if ( instance == null ) |
| 201 | {
|
| 202 | instance = new CookieJar(); |
| 203 | } |
| 204 | return instance; |
| 205 | } |
| 206 | } |
| 207 | |
| 208 | public CookieJar () |
| 209 | {
|
| 210 | this.Clear(); |
| 211 | } |
| 212 | |
| 213 | public void Clear() |
| 214 | {
|
| 215 | lock( cookieJarLock ) |
| 216 | {
|
| 217 | cookies = new Dictionary< string, List< Cookie > >(); |
| 218 | if ( ContentsChanged != null ) |
| 219 | {
|
| 220 | ContentsChanged(); |
| 221 | } |
| 222 | } |
| 223 | } |
| 224 | |
| 225 | public bool SetCookie( Cookie cookie ) |
| 226 | {
|
| 227 | lock( cookieJarLock ) |
| 228 | {
|
| 229 | bool expired = cookie.expirationDate < DateTime.Now; |
| 230 | |
| 231 | if ( cookies.ContainsKey( cookie.name ) ) |
| 232 | {
|
| 233 | for( int index = 0; index < cookies[ cookie.name ].Count; ++index ) |
| 234 | {
|
| 235 | Cookie collidableCookie = cookies[ cookie.name ][ index ]; |
| 236 | if ( collidableCookie.CollidesWith( new CookieAccessInfo( cookie ) ) ) |
| 237 | {
|
| 238 | if( expired ) |
| 239 | {
|
| 240 | cookies[ cookie.name ].RemoveAt( index ); |
| 241 | if ( cookies[ cookie.name ].Count == 0 ) |
| 242 | {
|
| 243 | cookies.Remove( cookie.name ); |
| 244 | if ( ContentsChanged != null ) |
| 245 | {
|
| 246 | ContentsChanged(); |
| 247 | } |
| 248 | } |
| 249 | |
| 250 | return false; |
| 251 | } |
| 252 | else |
| 253 | {
|
| 254 | cookies[ cookie.name ][ index ] = cookie; |
| 255 | if ( ContentsChanged != null ) |
| 256 | {
|
| 257 | ContentsChanged(); |
| 258 | } |
| 259 | return true; |
| 260 | } |
| 261 | } |
| 262 | } |
| 263 | |
| 264 | if ( expired ) |
| 265 | {
|
| 266 | return false; |
| 267 | } |
| 268 | |
| 269 | cookies[ cookie.name ].Add( cookie ); |
| 270 | if ( ContentsChanged != null ) |
| 271 | {
|
| 272 | ContentsChanged(); |
| 273 | } |
| 274 | return true; |
| 275 | } |
| 276 | |
| 277 | if ( expired ) |
| 278 | {
|
| 279 | return false; |
| 280 | } |
| 281 | |
| 282 | cookies[ cookie.name ] = new List< Cookie >(); |
| 283 | cookies[ cookie.name ].Add( cookie ); |
| 284 | if ( ContentsChanged != null ) |
| 285 | {
|
| 286 | ContentsChanged(); |
| 287 | } |
| 288 | return true; |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | // TODO: figure out a way to respect the scriptAccessible flag and supress cookies being |
| 293 | // returned that should not be. The issue is that at some point, within this |
| 294 | // library, we need to send all the correct cookies back in the request. Right now |
| 295 | // there's no way to add all cookies (regardless of script accessibility) to the |
| 296 | // request without exposing cookies that should not be script accessible. |
| 297 | |
| 298 | public Cookie GetCookie( string name, CookieAccessInfo accessInfo ) |
| 299 | {
|
| 300 | if ( !cookies.ContainsKey( name ) ) |
| 301 | {
|
| 302 | return null; |
| 303 | } |
| 304 | |
| 305 | for ( int index = 0; index < cookies[ name ].Count; ++index ) |
| 306 | {
|
| 307 | Cookie cookie = cookies[ name ][ index ]; |
| 308 | if ( cookie.expirationDate > DateTime.Now && cookie.Matches( accessInfo ) ) |
| 309 | {
|
| 310 | return cookie; |
| 311 | } |
| 312 | } |
| 313 | |
| 314 | return null; |
| 315 | } |
| 316 | |
| 317 | public List< Cookie > GetCookies( CookieAccessInfo accessInfo ) |
| 318 | {
|
| 319 | List< Cookie > result = new List< Cookie >(); |
| 320 | foreach ( string cookieName in cookies.Keys ) |
| 321 | {
|
| 322 | Cookie cookie = this.GetCookie( cookieName, accessInfo ); |
| 323 | if ( cookie != null ) |
| 324 | {
|
| 325 | result.Add( cookie ); |
| 326 | } |
| 327 | } |
| 328 | |
| 329 | return result; |
| 330 | } |
| 331 | |
| 332 | public void SetCookies( Cookie[] cookieObjects ) |
| 333 | {
|
| 334 | for ( var index = 0; index < cookieObjects.Length; ++index ) |
| 335 | {
|
| 336 | this.SetCookie( cookieObjects[ index ] ); |
| 337 | } |
| 338 | } |
| 339 | |
| 340 | private static string cookiesStringPattern = "[:](?=\\s*[a-zA-Z0-9_\\-]+\\s*[=])"; |
| 341 | |
| 342 | public void SetCookies( string cookiesString ) |
| 343 | {
|
| 344 | |
| 345 | Match match = Regex.Match( cookiesString, cookiesStringPattern ); |
| 346 | |
| 347 | if ( !match.Success ) |
| 348 | {
|
| 349 | throw new Exception( "Could not parse cookies string: " + cookiesString ); |
| 350 | } |
| 351 | |
| 352 | for ( int index = 0; index < match.Groups.Count; ++index ) |
| 353 | {
|
| 354 | this.SetCookie( new Cookie( match.Groups[ index ].Value ) ); |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | private static string boundary = "\n!!::!!\n"; |
| 359 | |
| 360 | public string Serialize() |
| 361 | {
|
| 362 | string result = version + boundary; |
| 363 | |
| 364 | lock( cookieJarLock ) |
| 365 | {
|
| 366 | foreach ( string key in cookies.Keys ) |
| 367 | {
|
| 368 | for ( int index = 0; index < cookies[ key ].Count; ++index ) |
| 369 | {
|
| 370 | result += cookies[ key ][ index ].ToString() + boundary; |
| 371 | } |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | return result; |
| 376 | } |
| 377 | |
| 378 | public void Deserialize( string cookieJarString, bool clear ) |
| 379 | {
|
| 380 | if ( clear ) |
| 381 | {
|
| 382 | this.Clear(); |
| 383 | } |
| 384 | |
| 385 | Regex regex = new Regex( boundary ); |
| 386 | string[] cookieStrings = regex.Split( cookieJarString ); |
| 387 | bool readVersion = false; |
| 388 | foreach ( string cookieString in cookieStrings ) |
| 389 | {
|
| 390 | if ( !readVersion ) |
| 391 | {
|
| 392 | if ( cookieString.IndexOf( version ) != 0 ) |
| 393 | {
|
| 394 | return; |
| 395 | } |
| 396 | readVersion = true; |
| 397 | continue; |
| 398 | } |
| 399 | |
| 400 | if ( cookieString.Length > 0 ) |
| 401 | {
|
| 402 | this.SetCookie( new Cookie( cookieString ) ); |
| 403 | } |
| 404 | } |
| 405 | } |
| 406 | } |
| 407 | } |