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package org.seasar.teeda.core.context.html; |
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|
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import java.io.IOException; |
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import java.io.Writer; |
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import java.net.URLEncoder; |
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|
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import javax.faces.component.UIComponent; |
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import javax.faces.context.ResponseWriter; |
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|
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import org.seasar.framework.util.ArrayUtil; |
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import org.seasar.framework.util.AssertionUtil; |
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import org.seasar.framework.util.StringUtil; |
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import org.seasar.teeda.core.JsfConstants; |
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import org.seasar.teeda.core.util.EmptyElementUtil; |
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import org.seasar.teeda.core.util.HTMLEncodeUtil; |
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|
| 38 | 429 | public class HtmlResponseWriter extends ResponseWriter { |
| 39 | |
|
| 40 | 1 | private static final char[] reserved = { ';', '/', '?', ':', '@', '&', '=', |
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'+', '$', ',' }; |
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|
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private static final char[] unescape; |
| 44 | |
|
| 45 | |
static { |
| 46 | 1 | unescape = new char[reserved.length + 1]; |
| 47 | 1 | System.arraycopy(reserved, 0, unescape, 0, reserved.length); |
| 48 | 1 | unescape[unescape.length - 1] = '#'; |
| 49 | 1 | } |
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|
| 51 | |
private Writer writer; |
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|
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private String contentType; |
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|
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private String characterEncoding; |
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|
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private boolean startTagOpening; |
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|
| 59 | 429 | private boolean shouldEscape = DEFAULT_ESCAPE; |
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|
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private static final boolean DEFAULT_ESCAPE = true; |
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|
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public void startElement(final String name, |
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final UIComponent componentForElement) throws IOException { |
| 65 | 870 | AssertionUtil.assertNotNull("name", name); |
| 66 | 869 | final Writer writer = getWriter(); |
| 67 | 869 | closeStartTagIfOpening(writer); |
| 68 | 869 | writer.write("<"); |
| 69 | 869 | writer.write(name); |
| 70 | |
|
| 71 | 869 | if ("script".equalsIgnoreCase(name)) { |
| 72 | 7 | shouldEscape = false; |
| 73 | |
} else { |
| 74 | 862 | shouldEscape = true; |
| 75 | |
} |
| 76 | 869 | startTagOpening = true; |
| 77 | 869 | } |
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|
| 79 | |
protected void closeStartTagIfOpening(final Writer writer) |
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throws IOException { |
| 81 | 1306 | if (startTagOpening) { |
| 82 | 691 | writer.write(">"); |
| 83 | 691 | startTagOpening = false; |
| 84 | |
} |
| 85 | 1306 | } |
| 86 | |
|
| 87 | |
public void endElement(final String name) throws IOException { |
| 88 | 806 | AssertionUtil.assertNotNull("name", name); |
| 89 | 805 | final Writer writer = getWriter(); |
| 90 | 805 | if (startTagOpening) { |
| 91 | 156 | if (EmptyElementUtil.isEmptyElement(name)) { |
| 92 | 118 | writer.write(" />"); |
| 93 | |
} else { |
| 94 | 38 | writer.write(">"); |
| 95 | 38 | writer.write("</" + name + ">"); |
| 96 | |
} |
| 97 | 156 | startTagOpening = false; |
| 98 | |
} else { |
| 99 | 649 | writer.write("</" + name + ">"); |
| 100 | |
} |
| 101 | 805 | shouldEscape = DEFAULT_ESCAPE; |
| 102 | 805 | } |
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|
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public void writeAttribute(final String name, final Object value, |
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final String property) throws IOException { |
| 106 | 1436 | AssertionUtil.assertNotNull("name", name); |
| 107 | 1435 | if (!startTagOpening) { |
| 108 | 1 | throw new IllegalStateException( |
| 109 | |
"there is no currently open element"); |
| 110 | |
} |
| 111 | 1434 | final String strValue = (value == null) ? "" : value.toString(); |
| 112 | 1434 | final Writer writer = getWriter(); |
| 113 | 1434 | writer.write(" "); |
| 114 | 1434 | writer.write(name); |
| 115 | 1434 | writer.write("=\""); |
| 116 | 1434 | writer.write(escapeAttribute(strValue)); |
| 117 | 1434 | writer.write("\""); |
| 118 | 1434 | } |
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|
| 120 | |
public void writeURIAttribute(final String name, final Object value, |
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final String property) throws IOException { |
| 122 | 42 | AssertionUtil.assertNotNull("name", name); |
| 123 | 41 | if (!startTagOpening) { |
| 124 | 1 | throw new IllegalStateException( |
| 125 | |
"there is no currently open element"); |
| 126 | |
} |
| 127 | 40 | final Writer writer = getWriter(); |
| 128 | 40 | final String strValue = value.toString(); |
| 129 | |
|
| 130 | 40 | writer.write(" "); |
| 131 | 40 | writer.write(name); |
| 132 | 40 | writer.write("=\""); |
| 133 | 40 | if (StringUtil.startsWithIgnoreCase(strValue, "javascript:")) { |
| 134 | 1 | writer.write(escapeAttribute(strValue)); |
| 135 | |
} else { |
| 136 | 39 | writer.write(encodeURIAttribute(strValue)); |
| 137 | |
} |
| 138 | 40 | writer.write("\""); |
| 139 | 40 | } |
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|
| 141 | |
public void writeComment(final Object comment) throws IOException { |
| 142 | 3 | AssertionUtil.assertNotNull("comment", comment); |
| 143 | 2 | final Writer writer = getWriter(); |
| 144 | 2 | closeStartTagIfOpening(writer); |
| 145 | 2 | writer.write("<!--"); |
| 146 | 2 | writer.write(comment.toString()); |
| 147 | 2 | writer.write("-->"); |
| 148 | 2 | } |
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|
| 150 | |
public void writeText(final Object text, final String property) |
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throws IOException { |
| 152 | 320 | AssertionUtil.assertNotNull("text", text); |
| 153 | 319 | final Writer writer = getWriter(); |
| 154 | 319 | closeStartTagIfOpening(writer); |
| 155 | 319 | String str = text.toString(); |
| 156 | 319 | if (shouldEscape) { |
| 157 | 317 | str = htmlSpecialChars(str); |
| 158 | |
} |
| 159 | 319 | writer.write(str); |
| 160 | 319 | } |
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|
| 162 | |
public void writeText(final char text[], final int off, final int len) |
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throws IOException { |
| 164 | 4 | AssertionUtil.assertNotNull("text", text); |
| 165 | 3 | writeText(new String(text, off, len), null); |
| 166 | 3 | } |
| 167 | |
|
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protected String htmlSpecialChars(final String s) { |
| 169 | 317 | return HTMLEncodeUtil.encode(s, true, true); |
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} |
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|
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protected String escapeAttribute(final String s) { |
| 173 | 1435 | return HTMLEncodeUtil.encode(s, false, false); |
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} |
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|
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public ResponseWriter cloneWithWriter(final Writer writer) { |
| 177 | 7 | AssertionUtil.assertNotNull("writer", writer); |
| 178 | 6 | final HtmlResponseWriter clone = new HtmlResponseWriter(); |
| 179 | 6 | clone.setWriter(writer); |
| 180 | 6 | clone.setContentType(getContentType()); |
| 181 | 6 | clone.setCharacterEncoding(getCharacterEncoding()); |
| 182 | 6 | return clone; |
| 183 | |
} |
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|
| 185 | |
public void write(final char[] cbuf, final int off, final int len) |
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throws IOException { |
| 187 | 3 | final Writer writer = getWriter(); |
| 188 | 3 | closeStartTagIfOpening(writer); |
| 189 | 3 | writer.write(cbuf, off, len); |
| 190 | 3 | } |
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|
| 192 | |
public void write(final char[] cbuf) throws IOException { |
| 193 | 2 | final Writer writer = getWriter(); |
| 194 | 2 | closeStartTagIfOpening(writer); |
| 195 | 2 | writer.write(cbuf); |
| 196 | 2 | } |
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|
| 198 | |
public void write(final int c) throws IOException { |
| 199 | 2 | final Writer writer = getWriter(); |
| 200 | 2 | closeStartTagIfOpening(writer); |
| 201 | 2 | writer.write(c); |
| 202 | 2 | } |
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|
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public void write(final String str) throws IOException { |
| 205 | 94 | final Writer writer = getWriter(); |
| 206 | 94 | closeStartTagIfOpening(writer); |
| 207 | 94 | writer.write(str); |
| 208 | 94 | } |
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|
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public void write(final String str, final int off, final int len) |
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throws IOException { |
| 212 | 2 | final Writer writer = getWriter(); |
| 213 | 2 | closeStartTagIfOpening(writer); |
| 214 | 2 | writer.write(str, off, len); |
| 215 | 2 | } |
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|
| 217 | |
public void flush() throws IOException { |
| 218 | 7 | final Writer writer = getWriter(); |
| 219 | 7 | closeStartTagIfOpening(writer); |
| 220 | 7 | } |
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|
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public void close() throws IOException { |
| 223 | 2 | final Writer writer = getWriter(); |
| 224 | 2 | closeStartTagIfOpening(writer); |
| 225 | 2 | writer.close(); |
| 226 | 2 | } |
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|
| 228 | |
public void startDocument() throws IOException { |
| 229 | 6 | } |
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|
| 231 | |
public void endDocument() throws IOException { |
| 232 | 4 | closeStartTagIfOpening(getWriter()); |
| 233 | 4 | } |
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|
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public String getContentType() { |
| 236 | 11 | return contentType; |
| 237 | |
} |
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|
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public void setContentType(final String contentType) { |
| 240 | 10 | this.contentType = contentType; |
| 241 | 10 | } |
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|
| 243 | |
public String getCharacterEncoding() { |
| 244 | 110 | if (characterEncoding == null) { |
| 245 | 44 | characterEncoding = JsfConstants.DEFAULT_ENCODING; |
| 246 | |
} |
| 247 | 110 | return characterEncoding; |
| 248 | |
} |
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|
| 250 | |
public void setCharacterEncoding(final String characterEncoding) { |
| 251 | 10 | this.characterEncoding = characterEncoding; |
| 252 | 10 | } |
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|
| 254 | |
public Writer getWriter() { |
| 255 | 3943 | return writer; |
| 256 | |
} |
| 257 | |
|
| 258 | |
public void setWriter(final Writer writer) { |
| 259 | 414 | this.writer = writer; |
| 260 | 414 | } |
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|
| 262 | |
protected String encodeURIAttribute(final String url) throws IOException { |
| 263 | 51 | final char[] chars = url.toCharArray(); |
| 264 | 51 | final StringBuffer sb = new StringBuffer(url.length() + 100); |
| 265 | 51 | final int length = chars.length; |
| 266 | 51 | final String encoding = getCharacterEncoding(); |
| 267 | 320 | for (int i = 0; i < length; i++) { |
| 268 | 289 | final char c = chars[i]; |
| 269 | 289 | if (ArrayUtil.contains(unescape, c)) { |
| 270 | 54 | sb.append(c); |
| 271 | 54 | if ('?' == c) { |
| 272 | 20 | if (i < length) { |
| 273 | 20 | sb.append(encodeQueryString(url.substring(i + 1))); |
| 274 | |
} |
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break; |
| 276 | |
} |
| 277 | |
} else { |
| 278 | 235 | sb.append(URLEncoder.encode(String.valueOf(c), encoding)); |
| 279 | |
} |
| 280 | |
} |
| 281 | 51 | return new String(sb); |
| 282 | |
} |
| 283 | |
|
| 284 | |
public String encodeQueryString(final String s) throws IOException { |
| 285 | 20 | final char[] chars = s.toCharArray(); |
| 286 | 20 | final StringBuffer sb = new StringBuffer(s.length() + 32); |
| 287 | 20 | final String encoding = getCharacterEncoding(); |
| 288 | 223 | for (int i = 0; i < chars.length; i++) { |
| 289 | 203 | final char c = chars[i]; |
| 290 | 203 | switch (c) { |
| 291 | |
case ' ': |
| 292 | 1 | sb.append("%20"); |
| 293 | 1 | break; |
| 294 | |
case '!': |
| 295 | 0 | sb.append("!"); |
| 296 | 0 | break; |
| 297 | |
case '#': |
| 298 | 2 | sb.append("#"); |
| 299 | 2 | break; |
| 300 | |
case '%': |
| 301 | 5 | sb.append("%"); |
| 302 | 5 | break; |
| 303 | |
case '&': |
| 304 | |
|
| 305 | 7 | sb.append("&"); |
| 306 | 7 | break; |
| 307 | |
case '\'': |
| 308 | 0 | sb.append("'"); |
| 309 | 0 | break; |
| 310 | |
case '(': |
| 311 | 0 | sb.append("("); |
| 312 | 0 | break; |
| 313 | |
case ')': |
| 314 | 0 | sb.append(")"); |
| 315 | 0 | break; |
| 316 | |
case '+': |
| 317 | 0 | sb.append("+"); |
| 318 | 0 | break; |
| 319 | |
case '/': |
| 320 | 2 | sb.append("/"); |
| 321 | 2 | break; |
| 322 | |
case '=': |
| 323 | 28 | sb.append("="); |
| 324 | 28 | break; |
| 325 | |
case '~': |
| 326 | 0 | sb.append("~"); |
| 327 | 0 | break; |
| 328 | |
default: |
| 329 | 158 | sb.append(URLEncoder.encode(String.valueOf(c), encoding)); |
| 330 | |
break; |
| 331 | |
} |
| 332 | |
} |
| 333 | 20 | return new String(sb); |
| 334 | |
} |
| 335 | |
|
| 336 | |
public String toString() { |
| 337 | 1 | return writer.toString(); |
| 338 | |
} |
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|
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} |