From 1b5dbc7c1862f0796c2d40339577f007d089b20a Mon Sep 17 00:00:00 2001
From: pbca26 <pbca26@gmail.com>
Date: Wed, 15 Nov 2017 22:30:14 +0300
Subject: [PATCH] write/read daemon stdout

---
 routes/shepherd.js               |  1 +
 routes/shepherd/daemonControl.js | 31 ++++++++++++++++++++++++++++---
 routes/shepherd/debugLog.js      | 31 +++++++++++++++++++++++++++++--
 routes/shepherd/rpc.js           | 20 ++++++++++----------
 4 files changed, 68 insertions(+), 15 deletions(-)

diff --git a/routes/shepherd.js b/routes/shepherd.js
index 222b6cf..6e3563c 100644
--- a/routes/shepherd.js
+++ b/routes/shepherd.js
@@ -31,6 +31,7 @@ shepherd.assetChainPorts = require('./ports.js');
 shepherd._appConfig = require('./appConfig.js');
 
 shepherd.coindInstanceRegistry = {};
+shepherd.coindStdout = {};
 shepherd.guiLog = {};
 shepherd.rpcConf = {};
 shepherd.appRuntimeLog = [];
diff --git a/routes/shepherd/daemonControl.js b/routes/shepherd/daemonControl.js
index 3f35e9d..23ec48b 100644
--- a/routes/shepherd/daemonControl.js
+++ b/routes/shepherd/daemonControl.js
@@ -1,4 +1,5 @@
 const spawn = require('child_process').spawn;
+const fs = require('fs-extra');
 
 module.exports = (shepherd) => {
   const getConf = (flock, coind) => {
@@ -173,14 +174,30 @@ module.exports = (shepherd) => {
               let _arg = `${coindACParam}${data.ac_options.join(' ')}${_customParam}`;
               _arg = _arg.trim().split(' ');
 
+              const _daemonName = data.ac_name !== 'komodod' ? data.ac_name : 'komodod';
+              const _daemonLogName = `${shepherd.agamaDir}/${_daemonName}.log`;
+
+              try {
+                fs.accessSync(_daemonLogName, shepherd.fs.R_OK | shepherd.fs.W_OK);
+                shepherd.log(`created ${_daemonLogName}`);
+                fs.unlinkSync(_daemonLogName);
+              } catch (e) {
+                shepherd.log(`error accessing ${_daemonLogName}, doesnt exist?`);
+              }
+
               if (!shepherd.appConfig.stopNativeDaemonsOnQuit) {
+                let spawnOut = fs.openSync(_daemonLogName, 'a');
+                let spawnErr = fs.openSync(_daemonLogName, 'a');
+
                 spawn(shepherd.komododBin, _arg, {
-                  stdio: 'ignore', // piping all stdio to /dev/null
+                  stdio: ['ignore', spawnOut, spawnErr],
                   detached: true,
                 }).unref();
               } else {
-                shepherd.execFile(`${shepherd.komododBin}`, _arg, {
-                  maxBuffer: 1024 * 1000000 // 1000 mb
+                let logStream = fs.createWriteStream(_daemonLogName, { flags: 'a' });
+
+                let _daemonChildProc = shepherd.execFile(`${shepherd.komododBin}`, _arg, {
+                  maxBuffer: 1024 * 1000000, // 1000 mb
                 }, (error, stdout, stderr) => {
                   shepherd.writeLog(`stdout: ${stdout}`);
                   shepherd.writeLog(`stderr: ${stderr}`);
@@ -198,6 +215,14 @@ module.exports = (shepherd) => {
                     }
                   }
                 });
+
+                _daemonChildProc.stdout.on('data', (data) => {
+                  // shepherd.log(`${_daemonName} stdout: \n${data}`);
+                }).pipe(logStream);
+
+                _daemonChildProc.stderr.on('data', (data) => {
+                  // shepherd.error(`${_daemonName} stderr:\n${data}`);
+                }).pipe(logStream);
               }
             }
           } else {
diff --git a/routes/shepherd/debugLog.js b/routes/shepherd/debugLog.js
index 74c41c1..5fd0c88 100644
--- a/routes/shepherd/debugLog.js
+++ b/routes/shepherd/debugLog.js
@@ -1,6 +1,6 @@
 module.exports = (shepherd) => {
   /*
-   *  type: GET
+   *  type: POST
    *  params: herd, lastLines
    */
   shepherd.post('/debuglog', (req, res) => {
@@ -52,6 +52,27 @@ module.exports = (shepherd) => {
     });
   });
 
+  shepherd.get('/coind/stdout', (req, res) => {
+    const _daemonName = req.query.chain !== 'komodod' ? req.query.chain : 'komodod';
+    const _daemonLogName = `${shepherd.agamaDir}/${_daemonName}.log`;
+
+    shepherd.readDebugLog(_daemonLogName, 'all')
+    .then((result) => {
+      const _obj = {
+        msg: 'success',
+        result: result,
+      };
+
+      res.end(JSON.stringify(_obj));
+    }, (result) => {
+      const _obj = {
+        msg: 'error',
+        result: result,
+      };
+
+      res.end(JSON.stringify(_obj));
+    });
+  });
 
   shepherd.readDebugLog = (fileLocation, lastNLines) => {
     return new shepherd.Promise(
@@ -72,7 +93,13 @@ module.exports = (shepherd) => {
                   }
 
                   const lines = data.trim().split('\n');
-                  const lastLine = lines.slice(lines.length - lastNLines, lines.length).join('\n');
+                  let lastLine;
+
+                  if (lastNLines === 'all') {
+                    lastLine = data.trim();
+                  } else {
+                    lastLine = lines.slice(lines.length - lastNLines, lines.length).join('\n');
+                  }
 
                   resolve(lastLine);
                 });
diff --git a/routes/shepherd/rpc.js b/routes/shepherd/rpc.js
index 6373bb2..40d55e4 100644
--- a/routes/shepherd/rpc.js
+++ b/routes/shepherd/rpc.js
@@ -97,8 +97,8 @@ module.exports = (shepherd) => {
             shepherd.readDebugLog(coindDebugLogLocation, 1)
             .then((result) => {
               const _obj = {
-                'msg': 'success',
-                'result': result,
+                msg: 'success',
+                result: result,
               };
 
               // shepherd.log('bitcoinrpc debug ====>');
@@ -127,15 +127,15 @@ module.exports = (shepherd) => {
           }
 
           let _body = {
-            'agent': 'bitcoinrpc',
-            'method': _cmd,
+            agent: 'bitcoinrpc',
+            method: _cmd,
           };
 
           if (req.body.payload.params) {
             _body = {
-              'agent': 'bitcoinrpc',
-              'method': _cmd,
-              'params': req.body.payload.params === ' ' ? [''] : req.body.payload.params,
+              agent: 'bitcoinrpc',
+              method: _cmd,
+              params: req.body.payload.params === ' ' ? [''] : req.body.payload.params,
             };
           }
 
@@ -144,10 +144,10 @@ module.exports = (shepherd) => {
               url: `http://localhost:${shepherd.rpcConf[req.body.payload.chain].port}`,
               method: 'POST',
               auth: {
-                'user': shepherd.rpcConf[req.body.payload.chain].user,
-                'pass': shepherd.rpcConf[req.body.payload.chain].pass
+                user: shepherd.rpcConf[req.body.payload.chain].user,
+                pass: shepherd.rpcConf[req.body.payload.chain].pass,
               },
-              body: JSON.stringify(_body)
+              body: JSON.stringify(_body),
             };
 
             // send back body on both success and error