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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 | 1x 1x 1x 1x 1x | const axios = require('axios');
const logger = require('./logger');
class Uploader {
constructor(config) {
this.config = config;
this.axios = axios.create({
baseURL: config.central_system.url,
headers: {
'Authorization': `Bearer ${config.central_system.token}`,
'Content-Type': 'application/json'
},
timeout: 30000
});
}
async uploadMetrics(metrics) {
try {
if (!metrics || metrics.length === 0) return;
const response = await this.axios.post('/api/metrics', {
metrics: metrics,
agent: {
version: require('../package.json').version,
timestamp: new Date().toISOString()
}
});
logger.info(`Successfully uploaded ${metrics.length} metric records`);
return response.data;
} catch (error) {
await this.handleUploadError('metrics', error, metrics);
throw error;
}
}
async uploadLogs(logs) {
try {
if (!logs || logs.length === 0) return;
const response = await this.axios.post('/api/logs', {
logs: logs,
agent: {
version: require('../package.json').version,
timestamp: new Date().toISOString()
}
});
logger.info(`Successfully uploaded ${logs.length} log records`);
return response.data;
} catch (error) {
await this.handleUploadError('logs', error, logs);
throw error;
}
}
async uploadServerInfo(serverInfo) {
try {
const response = await this.axios.post('/api/servers/register', {
...serverInfo,
agent: {
version: require('../package.json').version,
timestamp: new Date().toISOString()
}
});
logger.info('Successfully registered/updated server info');
return response.data;
} catch (error) {
await this.handleUploadError('server-info', error, serverInfo);
throw error;
}
}
async testConnection() {
try {
const response = await this.axios.get('/api/health');
logger.info('Connection test successful:', response.data);
return true;
} catch (error) {
logger.error('Connection test failed:', error.message);
return false;
}
}
async handleUploadError(type, error, data) {
const errorInfo = {
type: type,
timestamp: new Date().toISOString(),
error: {
message: error.message,
code: error.code,
status: error.response?.status,
statusText: error.response?.statusText
},
dataCount: Array.isArray(data) ? data.length : 1
};
if (error.response) {
// Server responded with error status
logger.error(`Upload failed for ${type} - Server Error:`, {
status: error.response.status,
statusText: error.response.statusText,
data: error.response.data
});
} else if (error.request) {
// Request was made but no response received
logger.error(`Upload failed for ${type} - Network Error:`, {
message: error.message,
code: error.code
});
// Save data locally for retry
await this.saveOfflineData(type, data);
} else {
// Something else happened
logger.error(`Upload failed for ${type} - Unknown Error:`, error.message);
}
}
async saveOfflineData(type, data) {
try {
const fs = require('fs').promises;
const path = require('path');
const offlineDir = path.join(__dirname, '../logs/offline');
await fs.mkdir(offlineDir, { recursive: true });
const timestamp = new Date().toISOString().replace(/[:.]/g, '-');
const filename = `${type}-${timestamp}.json`;
const filepath = path.join(offlineDir, filename);
await fs.writeFile(filepath, JSON.stringify({
type: type,
timestamp: new Date().toISOString(),
data: data
}, null, 2));
logger.info(`Saved ${type} data offline: ${filename}`);
} catch (saveError) {
logger.error('Failed to save offline data:', saveError);
}
}
async retryOfflineData() {
try {
const fs = require('fs').promises;
const path = require('path');
const offlineDir = path.join(__dirname, '../logs/offline');
try {
const files = await fs.readdir(offlineDir);
for (const file of files) {
if (!file.endsWith('.json')) continue;
const filepath = path.join(offlineDir, file);
const content = await fs.readFile(filepath, 'utf8');
const offlineData = JSON.parse(content);
try {
if (offlineData.type === 'metrics') {
await this.uploadMetrics(offlineData.data);
} else if (offlineData.type === 'logs') {
await this.uploadLogs(offlineData.data);
} else if (offlineData.type === 'server-info') {
await this.uploadServerInfo(offlineData.data);
}
// Delete file after successful upload
await fs.unlink(filepath);
logger.info(`Successfully retried offline data: ${file}`);
} catch (retryError) {
logger.warn(`Failed to retry offline data ${file}:`, retryError.message);
}
}
} catch (dirError) {
// Offline directory doesn't exist yet
logger.debug('No offline data directory found');
}
} catch (error) {
logger.error('Error retrying offline data:', error);
}
}
async withRetry(operation, maxRetries = 3) {
for (let attempt = 1; attempt <= maxRetries; attempt++) {
try {
return await operation();
} catch (error) {
if (attempt === maxRetries) {
throw error;
}
const delay = Math.min(1000 * Math.pow(2, attempt - 1), 10000);
logger.warn(`Attempt ${attempt} failed, retrying in ${delay}ms:`, error.message);
await new Promise(resolve => setTimeout(resolve, delay));
}
}
}
}
module.exports = Uploader;
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