{"record":{"id":"f6edb1d2737608ed","repo":"iflytek/astron-agent","slug":"wechat-message-decryption-failed","errorCode":null,"errorMessage":"WeChat message decryption failed","messagePattern":"WeChat message decryption failed","errorType":"exception","errorClass":"RuntimeException","httpStatus":null,"severity":"error","filePath":"console/backend/hub/src/main/java/com/iflytek/astron/console/hub/util/wechat/WechatMessageCrypto.java","lineNumber":58,"sourceCode":"\n        try {\n            // TODO: Implement actual WeChat message decryption logic here\n            // In actual projects, should use the official WeChat WXBizMsgCrypt class\n            log.warn(\"WeChat message decryption functionality needs to be implemented, currently returning mock data\");\n\n            // Return mock decrypted data\n            return \"<xml>\" +\n                    \"<AppId><![CDATA[\" + componentAppid + \"]]></AppId>\" +\n                    \"<InfoType><![CDATA[authorized]]></InfoType>\" +\n                    \"<AuthorizerAppid><![CDATA[wx[example_appid]]]></AuthorizerAppid>\" +\n                    \"<AuthorizationCode><![CDATA[auth_code_123]]></AuthorizationCode>\" +\n                    \"<CreateTime>1234567890</CreateTime>\" +\n                    \"</xml>\";\n\n        } catch (Exception e) {\n            log.error(\"WeChat message decryption failed: msgSignature={}, timestamp={}, nonce={}\",\n                    msgSignature, timestamp, nonce, e);\n            throw new RuntimeException(\"WeChat message decryption failed\", e);\n        }\n    }\n\n    /**\n     * Verify message signature\n     *\n     * @param signature Signature\n     * @param timestamp Timestamp\n     * @param nonce Random number\n     * @return Whether verification passed\n     */\n    public boolean verifySignature(String signature, String timestamp, String nonce) {\n        if (!StringUtils.hasText(signature) || !StringUtils.hasText(timestamp) || !StringUtils.hasText(nonce)) {\n            return false;\n        }\n\n        try {\n            // TODO: Implement actual signature verification logic here","sourceCodeStart":40,"sourceCodeEnd":76,"githubUrl":"https://github.com/iflytek/astron-agent/blob/5e758547a83371a5a4b29dadf4ac03e8dd527635/console/backend/hub/src/main/java/com/iflytek/astron/console/hub/util/wechat/WechatMessageCrypto.java#L40-L76","documentation":"decryptMessage wraps all decryption work in a try/catch; any exception during the (currently stubbed, mock-returning) decryption path is logged and rethrown as RuntimeException('WeChat message decryption failed', e). It is a generic wrapper, so the root cause is always in the chained cause exception.","triggerScenarios":"Any exception thrown inside decryptMessage's try block — e.g. the IllegalArgumentException from the empty-payload guard when bypassed, Base64/AES failures in the future real implementation, or malformed encrypted data fed to the decrypt logic.","commonSituations":"Malformed or non-Base64 encrypted payloads posted to the callback; wrong EncodingAESKey once real decryption is implemented; the stub's mock path replaced with real WXBizMsgCrypt calls that fail on invalid signatures; corrupted message bodies from intermediary proxies.","solutions":["Inspect the chained cause (`e.getCause()` in logs) — the RuntimeException is only a wrapper.","Validate the encrypted payload is well-formed Base64/AES ciphertext matching WeChat's format before calling decryptMessage.","Replace the TODO stub with the official WXBizMsgCrypt.decryptMsg so real messages decrypt instead of failing on mock logic.","Confirm EncodingAESKey and AppId configuration are correct for the WeChat app."],"exampleFix":"// before\nthrow new RuntimeException(\"WeChat message decryption failed\", e);\n// after\nreturn ApiResult.fail(400, \"WeChat message decryption failed: \" + e.getCause());\n// and implement:\n// result = new WXBizMsgCrypt(token, aesKey, appId).decryptMsg(sig, ts, nonce, xml);","handlingStrategy":"try-catch","validationCode":"boolean looksEncrypted = encryptData != null && Base64.getDecoder().decode(encryptData).length > 16;","typeGuard":null,"tryCatchPattern":"try { return crypto.decryptMessage(sig, ts, nonce, enc); } catch (RuntimeException e) { log.error(\"decrypt failed, cause={}\", e.getCause()); return ResponseEntity.status(500).body(\"decryption unavailable\"); }","preventionTips":["Always inspect e.getCause() — the message is a generic wrapper","Validate Base64/AES ciphertext shape before decrypting","Implement real decryption via WXBizMsgCrypt to avoid stub failures","Keep EncodingAESKey/AppId in secure, correct config"],"tags":["wechat","decryption","wrapper-exception","stub"],"backgroundTag":"api-request-failed","analyzedSha":"5e758547a83371a5a4b29dadf4ac03e8dd527635","analyzedAt":"2026-09-12T08:03:51.356Z","contentChangedAt":"2026-09-12T08:03:51.356Z","schemaVersion":2},"datasetVersion":"2026-09-15T23:17:13.987Z"}