Merge branch 'master' of github.com:krebscode/painload

2 files changed, 78 insertions, 0 deletions

diff --git a/hyper/README.md b/hyper/README.md
index 07fa1de5..d8fe9d67 100644
--- a/hyper/README.md
+++ b/hyper/README.md
@@ -13,3 +13,24 @@
 ## send data for calculation
 
     echo 9000+2^42 | curl -fvsS --data-binary @- $url/{path}
+
+## spawn process with http influx and local efflux
+
+hint: maybe run each command in some separate terminal.
+
+    id=dummy sh -x //hyper/process/spawn stdbuf -o 0 sed 's/[^0-9 ]//g'
+    port=3 node //hyper/influx/http //proc/dummy/0
+    cat //proc/dummy/1
+    cat //proc/dummy/2
+    date | curl -fvsS --data-binary @- http://localhost:3
+
+## calculate the square of the current year in a little local hyper sewer system
+
+hint: maybe run each command in some separate terminal.
+
+    id=sqr sh -x //hyper/process/spawn stdbuf -o 0 sed 's/[^0-9]//g;s/.*/(&)^2/'
+    id=bc sh -x //hyper/process/spawn bc
+    port=42 node //hyper/influx/http //proc/sqr/0
+    cat //proc/sqr/1 > //proc/bc/0
+    cat //proc/bc/1
+    date +%Y | curl -fvsS --data-binary @- http://localhost:42
diff --git a/hyper/influx/http/index.js b/hyper/influx/http/index.js
new file mode 100755
index 00000000..346dde3b
--- /dev/null
+++ b/hyper/influx/http/index.js
@@ -0,0 +1,57 @@
+#! /usr/bin/env node
+
+name = '//hyper/influx/http'
+port = process.env.port || 1337
+host = process.env.host || '127.0.0.1'
+
+
+console.info(name);
+
+fs = require('fs');
+path = require('path');
+http = require('http');
+
+fifo_path = path.resolve(process.argv[2] || path.join(process.cwd(), '0'));
+
+// check configuration
+try {
+  (function (stat) {
+    if ((stat.mode & 0010000) === 0) {
+      throw { code: 'E_not_fifo', path: fifo_path };
+    };
+  })(fs.statSync(fifo_path));
+} catch (exn) {
+  console.error(exn);
+  process.exit(23);
+};
+
+process.stdin.destroy();
+fifo = fs.createWriteStream(fifo_path);
+fifo.on('open', function (fd) {
+  console.info('fifo open as fd', fd);
+
+  http.createServer(function (req, res) {
+    var rhost = req.connection.remoteAddress;
+    var rport = req.connection.remotePort;
+    var id = rhost + ':' + rport;
+  
+    console.info(id, 'request', req.method, req.url);
+
+    req.on('data', function (data) {
+      console.info(id, 'data', data.length);
+    });
+
+    req.on('end', function (data) {
+      console.info(id, 'end');
+      res.writeHead(202, {
+        'Content-Length': 0,
+        'Connection': 'close'
+      });
+      res.end();
+    });
+
+    req.pipe(fifo, { end: false });
+  }).listen(port, host, function () {
+    console.info('server running at http://' + host + ':' + port + '/');
+  });
+});