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| 1 | +package fr.adrienbrault.idea.symfony2plugin.profiler.collector; |
| 2 | + |
| 3 | +import fr.adrienbrault.idea.symfony2plugin.profiler.dict.ProfilerTwigComponent; |
| 4 | +import org.jetbrains.annotations.NotNull; |
| 5 | +import org.jetbrains.annotations.Nullable; |
| 6 | + |
| 7 | +import java.util.ArrayList; |
| 8 | +import java.util.Collection; |
| 9 | +import java.util.Collections; |
| 10 | +import java.util.regex.Matcher; |
| 11 | +import java.util.regex.Pattern; |
| 12 | + |
| 13 | +public class LocalTwigComponentDataCollector implements TwigComponentDataCollectorInterface { |
| 14 | + private static final String TWIG_COMPONENT_COLLECTOR_KEY = "s:14:\"twig_component\""; |
| 15 | + private static final Pattern SERIALIZED_ARRAY_PREFIX = Pattern.compile("a:\\d+:\\{"); |
| 16 | + private static final Pattern SERIALIZED_STRING_PREFIX = Pattern.compile("s:(\\d+):\""); |
| 17 | + |
| 18 | + @Nullable |
| 19 | + private final String contents; |
| 20 | + |
| 21 | + public LocalTwigComponentDataCollector(@Nullable String contents) { |
| 22 | + this.contents = contents; |
| 23 | + } |
| 24 | + |
| 25 | + @Override |
| 26 | + public @NotNull Collection<ProfilerTwigComponent> getComponents() { |
| 27 | + String collectorContent = getTwigComponentCollectorContent(); |
| 28 | + if (collectorContent == null) { |
| 29 | + return Collections.emptyList(); |
| 30 | + } |
| 31 | + |
| 32 | + ComponentsContent componentsContent = findComponentsContent(collectorContent); |
| 33 | + if (componentsContent == null) { |
| 34 | + return Collections.emptyList(); |
| 35 | + } |
| 36 | + |
| 37 | + Collection<ProfilerTwigComponent> components = new ArrayList<>(); |
| 38 | + for (String componentContent : getDirectValues(componentsContent.componentsContent())) { |
| 39 | + componentContent = resolveVarDumperReference(componentContent, componentsContent.dataContent()); |
| 40 | + ComponentFields componentFields = parseComponentFields(componentContent); |
| 41 | + if (!componentFields.isComponent()) { |
| 42 | + continue; |
| 43 | + } |
| 44 | + |
| 45 | + components.add(new ProfilerTwigComponent( |
| 46 | + componentFields.name, |
| 47 | + componentFields.className, |
| 48 | + componentFields.template, |
| 49 | + componentFields.renderCount != null ? componentFields.renderCount : 0 |
| 50 | + )); |
| 51 | + } |
| 52 | + |
| 53 | + return components; |
| 54 | + } |
| 55 | + |
| 56 | + @Nullable |
| 57 | + private static ComponentsContent findComponentsContent(@NotNull String collectorContent) { |
| 58 | + String dataObjectContent = findDirectValueByKey(collectorContent, "data"); |
| 59 | + if (dataObjectContent == null) { |
| 60 | + return null; |
| 61 | + } |
| 62 | + |
| 63 | + String dataContent = findDirectValueByKey(dataObjectContent, "data"); |
| 64 | + if (dataContent == null) { |
| 65 | + return null; |
| 66 | + } |
| 67 | + |
| 68 | + for (String dataValue : getDirectValues(dataContent)) { |
| 69 | + String componentsReference = findDirectValueByKey(dataValue, "components"); |
| 70 | + if (componentsReference == null) { |
| 71 | + continue; |
| 72 | + } |
| 73 | + |
| 74 | + return new ComponentsContent(resolveVarDumperReference(componentsReference, dataContent), dataContent); |
| 75 | + } |
| 76 | + |
| 77 | + return null; |
| 78 | + } |
| 79 | + |
| 80 | + @Nullable |
| 81 | + private String getTwigComponentCollectorContent() { |
| 82 | + if (contents == null || !contents.contains(TWIG_COMPONENT_COLLECTOR_KEY)) { |
| 83 | + return null; |
| 84 | + } |
| 85 | + |
| 86 | + int collectorIndex = contents.indexOf(TWIG_COMPONENT_COLLECTOR_KEY); |
| 87 | + int valueStart = contents.indexOf(';', collectorIndex + TWIG_COMPONENT_COLLECTOR_KEY.length()); |
| 88 | + if (valueStart < 0) { |
| 89 | + return contents.substring(collectorIndex); |
| 90 | + } |
| 91 | + |
| 92 | + int valueEnd = findSerializedValueEnd(contents, valueStart + 1); |
| 93 | + return valueEnd > valueStart ? contents.substring(valueStart + 1, valueEnd) : contents.substring(collectorIndex); |
| 94 | + } |
| 95 | + |
| 96 | + private static int findSerializedValueEnd(@NotNull String content, int start) { |
| 97 | + int depth = 0; |
| 98 | + boolean hasCompoundValue = false; |
| 99 | + |
| 100 | + for (int i = start; i < content.length(); i++) { |
| 101 | + int stringEnd = findSerializedStringEnd(content, i); |
| 102 | + if (stringEnd > i) { |
| 103 | + i = stringEnd - 1; |
| 104 | + continue; |
| 105 | + } |
| 106 | + |
| 107 | + char c = content.charAt(i); |
| 108 | + if (c == '{') { |
| 109 | + depth++; |
| 110 | + hasCompoundValue = true; |
| 111 | + } else if (c == '}') { |
| 112 | + depth--; |
| 113 | + if (hasCompoundValue && depth == 0) { |
| 114 | + return i + 1; |
| 115 | + } |
| 116 | + } else if (!hasCompoundValue && c == ';') { |
| 117 | + return i + 1; |
| 118 | + } |
| 119 | + } |
| 120 | + |
| 121 | + return -1; |
| 122 | + } |
| 123 | + |
| 124 | + @Nullable |
| 125 | + private static SerializedValue readSerializedValue(@NotNull String content, int start) { |
| 126 | + if (content.startsWith("N;", start)) { |
| 127 | + return new SerializedValue(null, null, start + 2); |
| 128 | + } |
| 129 | + |
| 130 | + SerializedValue stringValue = readSerializedString(content, start); |
| 131 | + if (stringValue != null) { |
| 132 | + return stringValue; |
| 133 | + } |
| 134 | + |
| 135 | + if (content.startsWith("i:", start)) { |
| 136 | + int end = content.indexOf(';', start + 2); |
| 137 | + if (end > start) { |
| 138 | + return new SerializedValue(null, parseInteger(content.substring(start + 2, end)), end + 1); |
| 139 | + } |
| 140 | + } |
| 141 | + |
| 142 | + int valueEnd = findSerializedValueEnd(content, start); |
| 143 | + return valueEnd > start ? new SerializedValue(null, null, valueEnd) : null; |
| 144 | + } |
| 145 | + |
| 146 | + @Nullable |
| 147 | + private static SerializedValue readSerializedString(@NotNull String content, int start) { |
| 148 | + Matcher matcher = SERIALIZED_STRING_PREFIX.matcher(content); |
| 149 | + matcher.region(start, content.length()); |
| 150 | + if (!matcher.lookingAt()) { |
| 151 | + return null; |
| 152 | + } |
| 153 | + |
| 154 | + int length; |
| 155 | + try { |
| 156 | + length = Integer.parseInt(matcher.group(1)); |
| 157 | + } catch (NumberFormatException ignored) { |
| 158 | + return null; |
| 159 | + } |
| 160 | + |
| 161 | + int stringEnd = matcher.end() + length; |
| 162 | + if (stringEnd + 2 <= content.length() && content.startsWith("\";", stringEnd)) { |
| 163 | + return new SerializedValue(content.substring(matcher.end(), stringEnd), null, stringEnd + 2); |
| 164 | + } |
| 165 | + |
| 166 | + int fallbackStringEnd = content.indexOf("\";", matcher.end()); |
| 167 | + if (fallbackStringEnd > matcher.end()) { |
| 168 | + return new SerializedValue(content.substring(matcher.end(), fallbackStringEnd), null, fallbackStringEnd + 2); |
| 169 | + } |
| 170 | + |
| 171 | + return null; |
| 172 | + } |
| 173 | + |
| 174 | + private static int findSerializedStringEnd(@NotNull String content, int start) { |
| 175 | + SerializedValue value = readSerializedString(content, start); |
| 176 | + return value != null ? value.end : -1; |
| 177 | + } |
| 178 | + |
| 179 | + @Nullable |
| 180 | + private static String findDirectValueByKey(@NotNull String serializedContent, @NotNull String expectedKey) { |
| 181 | + for (SerializedPair pair : getDirectPairs(serializedContent)) { |
| 182 | + if (pair.key.stringValue != null && isPropertyName(pair.key.stringValue, expectedKey)) { |
| 183 | + return pair.rawValue; |
| 184 | + } |
| 185 | + } |
| 186 | + |
| 187 | + return null; |
| 188 | + } |
| 189 | + |
| 190 | + @Nullable |
| 191 | + private static String findDirectValueByIntegerKey(@NotNull String serializedContent, int expectedKey) { |
| 192 | + for (SerializedPair pair : getDirectPairs(serializedContent)) { |
| 193 | + if (pair.key.integerValue != null && pair.key.integerValue == expectedKey) { |
| 194 | + return pair.rawValue; |
| 195 | + } |
| 196 | + } |
| 197 | + |
| 198 | + return null; |
| 199 | + } |
| 200 | + |
| 201 | + @NotNull |
| 202 | + private static String resolveVarDumperReference(@NotNull String serializedContent, @NotNull String dataContent) { |
| 203 | + String referencedIndex = findDirectValueByIntegerKey(serializedContent, 1); |
| 204 | + if (referencedIndex == null) { |
| 205 | + return serializedContent; |
| 206 | + } |
| 207 | + |
| 208 | + SerializedValue referenceValue = readSerializedValue(referencedIndex, 0); |
| 209 | + if (referenceValue == null || referenceValue.integerValue == null) { |
| 210 | + return serializedContent; |
| 211 | + } |
| 212 | + |
| 213 | + String resolvedContent = findDirectValueByIntegerKey(dataContent, referenceValue.integerValue); |
| 214 | + return resolvedContent != null ? resolvedContent : serializedContent; |
| 215 | + } |
| 216 | + |
| 217 | + @NotNull |
| 218 | + private static Collection<String> getDirectValues(@NotNull String serializedContent) { |
| 219 | + Collection<String> values = new ArrayList<>(); |
| 220 | + for (SerializedPair pair : getDirectPairs(serializedContent)) { |
| 221 | + values.add(pair.rawValue); |
| 222 | + } |
| 223 | + |
| 224 | + return values; |
| 225 | + } |
| 226 | + |
| 227 | + @NotNull |
| 228 | + private static Collection<SerializedPair> getDirectPairs(@NotNull String serializedContent) { |
| 229 | + Collection<SerializedPair> pairs = new ArrayList<>(); |
| 230 | + |
| 231 | + Matcher arrayMatcher = SERIALIZED_ARRAY_PREFIX.matcher(serializedContent); |
| 232 | + if (!arrayMatcher.lookingAt() && !serializedContent.startsWith("O:")) { |
| 233 | + return pairs; |
| 234 | + } |
| 235 | + |
| 236 | + int bodyStart = serializedContent.indexOf('{'); |
| 237 | + if (bodyStart < 0) { |
| 238 | + return pairs; |
| 239 | + } |
| 240 | + |
| 241 | + int offset = bodyStart + 1; |
| 242 | + while (offset < serializedContent.length() && serializedContent.charAt(offset) != '}') { |
| 243 | + SerializedValue key = readSerializedValue(serializedContent, offset); |
| 244 | + if (key == null) { |
| 245 | + break; |
| 246 | + } |
| 247 | + |
| 248 | + offset = key.end; |
| 249 | + |
| 250 | + int valueStart = offset; |
| 251 | + SerializedValue value = readSerializedValue(serializedContent, valueStart); |
| 252 | + if (value == null) { |
| 253 | + break; |
| 254 | + } |
| 255 | + |
| 256 | + offset = value.end; |
| 257 | + pairs.add(new SerializedPair(key, value, serializedContent.substring(valueStart, value.end))); |
| 258 | + } |
| 259 | + |
| 260 | + return pairs; |
| 261 | + } |
| 262 | + |
| 263 | + private static boolean isPropertyName(@NotNull String key, @NotNull String expectedKey) { |
| 264 | + int nullByte = key.lastIndexOf('\0'); |
| 265 | + String normalizedKey = nullByte >= 0 ? key.substring(nullByte + 1) : key; |
| 266 | + return expectedKey.equals(normalizedKey); |
| 267 | + } |
| 268 | + |
| 269 | + @NotNull |
| 270 | + private static ComponentFields parseComponentFields(@NotNull String componentArrayContent) { |
| 271 | + ComponentFields fields = new ComponentFields(); |
| 272 | + |
| 273 | + for (SerializedPair pair : getDirectPairs(componentArrayContent)) { |
| 274 | + if (pair.key.stringValue == null) { |
| 275 | + continue; |
| 276 | + } |
| 277 | + |
| 278 | + switch (pair.key.stringValue) { |
| 279 | + case "name" -> fields.name = pair.value.stringValue; |
| 280 | + case "class" -> fields.className = normalizePhpClassName(pair.value.stringValue); |
| 281 | + case "template" -> fields.template = pair.value.stringValue; |
| 282 | + case "render_count" -> fields.renderCount = pair.value.integerValue; |
| 283 | + } |
| 284 | + } |
| 285 | + |
| 286 | + return fields; |
| 287 | + } |
| 288 | + |
| 289 | + @Nullable |
| 290 | + private static String normalizePhpClassName(@Nullable String className) { |
| 291 | + if (className == null || className.isBlank()) { |
| 292 | + return null; |
| 293 | + } |
| 294 | + |
| 295 | + return className.startsWith("\\") ? className : "\\" + className; |
| 296 | + } |
| 297 | + |
| 298 | + @Nullable |
| 299 | + private static Integer parseInteger(@Nullable String value) { |
| 300 | + if (value == null) { |
| 301 | + return null; |
| 302 | + } |
| 303 | + |
| 304 | + try { |
| 305 | + return Integer.parseInt(value); |
| 306 | + } catch (NumberFormatException ignored) { |
| 307 | + return null; |
| 308 | + } |
| 309 | + } |
| 310 | + |
| 311 | + private static class ComponentFields { |
| 312 | + private String name; |
| 313 | + private String className; |
| 314 | + private String template; |
| 315 | + private Integer renderCount; |
| 316 | + |
| 317 | + private boolean isComponent() { |
| 318 | + return name != null && (className != null || template != null || renderCount != null); |
| 319 | + } |
| 320 | + } |
| 321 | + |
| 322 | + private record SerializedValue(@Nullable String stringValue, @Nullable Integer integerValue, int end) { |
| 323 | + } |
| 324 | + |
| 325 | + private record SerializedPair(@NotNull SerializedValue key, @NotNull SerializedValue value, @NotNull String rawValue) { |
| 326 | + } |
| 327 | + |
| 328 | + private record ComponentsContent(@NotNull String componentsContent, @NotNull String dataContent) { |
| 329 | + } |
| 330 | +} |
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