SYS-REQ-115
(config Config, data []byte, keys ...string)
| 1247 | |
| 1248 | // SYS-REQ-115 |
| 1249 | func deleteFoundConfig(config Config, data []byte, keys ...string) (result []byte, found bool) { |
| 1250 | lk := len(keys) |
| 1251 | if lk == 0 { |
| 1252 | // Deleting the root produces an empty document whose backing array |
| 1253 | // must not alias the caller's input. |
| 1254 | return make([]byte, 0), true |
| 1255 | } |
| 1256 | |
| 1257 | array := false |
| 1258 | if len(keys[lk-1]) > 0 && string(keys[lk-1][0]) == "[" { |
| 1259 | array = true |
| 1260 | } |
| 1261 | |
| 1262 | var startOffset, keyOffset int |
| 1263 | endOffset := len(data) |
| 1264 | var err error |
| 1265 | if !array { |
| 1266 | if len(keys) > 1 { |
| 1267 | _, _, startOffset, endOffset, err = internalGetConfig(config, data, keys[:lk-1]...) |
| 1268 | if err != nil { |
| 1269 | // problem parsing the data |
| 1270 | return data, false |
| 1271 | } |
| 1272 | } |
| 1273 | |
| 1274 | keyOffset, err = findKeyStartConfig(config, data[startOffset:endOffset], keys[lk-1]) |
| 1275 | if err == KeyPathNotFoundError { |
| 1276 | // problem parsing the data |
| 1277 | return data, false |
| 1278 | } |
| 1279 | keyOffset += startOffset |
| 1280 | var subEndOffset int |
| 1281 | _, _, _, subEndOffset, err = internalGetConfig(config, data[startOffset:endOffset], keys[lk-1]) |
| 1282 | if err != nil { |
| 1283 | return data, false |
| 1284 | } |
| 1285 | endOffset = startOffset + subEndOffset |
| 1286 | tokEnd := tokenEnd(data[endOffset:]) |
| 1287 | tokStart := findTokenStart(data[:keyOffset], ","[0]) |
| 1288 | |
| 1289 | if endOffset+tokEnd >= len(data) { |
| 1290 | // tokenEnd sentinel: no delimiter found, input is truncated |
| 1291 | return data, false |
| 1292 | } |
| 1293 | |
| 1294 | // guard: tokenEnd sentinel may return -1 on truncated input; bounds-check before deref. |
| 1295 | idx := endOffset + tokEnd |
| 1296 | // Scan forward from idx through any JSON whitespace to find the next |
| 1297 | // real token. The original check only matched a single ' ' byte |
| 1298 | // before the comma, so inputs like '{"a":1,\n"b":2}' or '[0,0 ,0]' |
| 1299 | // (multiple whitespace bytes) bypassed the cleanup and left a |
| 1300 | // dangling comma sequence. Found by FuzzPathMutation. |
| 1301 | nextTokIdx := idx |
| 1302 | for nextTokIdx < len(data) && isJSONWhitespace(data[nextTokIdx]) { |
| 1303 | nextTokIdx++ |
| 1304 | } |
| 1305 | if len(data) > idx && data[idx] == ',' { |
| 1306 | endOffset += tokEnd + 1 |
no test coverage detected