cgi-script almost working

[progcomp2013.git] / qchess / qchess.cgi

diff --git a/qchess/qchess.cgi b/qchess/qchess.cgi
new file mode 100755 (executable)
index 0000000..96e45a1
--- /dev/null
+++ b/qchess/qchess.cgi
@@ -0,0 +1,155 @@
+#!/usr/bin/python
+
+# CGI wrapper to qchess
+
+import sys
+import os
+
+import cgi
+import subprocess
+import time
+import threading
+
+
+def open_fifo(name, mode, timeout=None):
+       if timeout == None:
+               return open(name, mode)
+       
+       
+       class Worker(threading.Thread):
+               def __init__(self):
+                       threading.Thread.__init__(self)
+                       self.result = None
+                       
+               def run(self):          
+                       self.result = open(name, mode)
+               
+
+       w = Worker()
+       w.start()
+       
+       start = time.time()
+       while time.time() - start < timeout:
+               if w.is_alive() == False:
+                       w.join()
+                       return w.result
+               time.sleep(0.1)
+       
+       
+       if w.is_alive():
+               #sys.stderr.write("FIFO_TIMEOUT!\n")
+               if mode == "r":
+                       f = open(name, "w")
+               else:
+                       f = open(name, "r")
+                       
+               #sys.stderr.write("Opened other end!\n")
+               while w.is_alive():
+                       time.sleep(0.1)
+                       
+               w.join()
+               f.close()
+               w.result.close()
+               raise Exception("FIFO_TIMEOUT")
+       else:
+               w.join()
+               return w.result
+
+def quit():
+       try:
+               fifo_out = open_fifo("../cgi-data/"+client+".in", "w", 5)
+       except:
+               pass
+       else:
+               fifo_out.write("quit\n")
+               fifo_out.close()
+               
+       try:
+               fifo_in = open_fifo("../cgi-data/"+client+".out", "w", 5)
+       except:
+               pass
+       else:
+               s = fifo_in.readline().strip(" \r\n")
+               while s != "":
+                       #print s
+                       s = fifo_in.readline().strip(" \r\n")
+                       fifo_in.close()
+       time.sleep(0.5)
+       
+       
+
+
+def main(argv):
+       global client
+       #form = cgi.FieldStorage()
+       #client = cgi.escape(os.environ["REMOTE_ADDR"])
+       
+       client = "127.0.0.1"
+       
+       
+       print "Content-Type: text/plain\r\n\r\n"
+
+       
+       try:
+               request = argv[1]
+       except:
+               request = None
+
+       
+       try:
+               x = int(argv[1])        
+               y = int(argv[2])
+       except:
+               if request == "quit":
+                       quit()
+                       return 0
+               
+               if os.path.exists("../cgi-bin/"+client+".in") and os.path.exists("../cgi-bin/"+client+".out"):
+                       print "Error: Game in progress expects x and y"
+                       return 1
+               else:
+                       print "NEW GAME"
+                       args = ["./qchess.py"]
+                       if request == None:
+                               args += ["@fifo:../cgi-data/"+client, "@internal:AgentBishop"]
+                       elif request == "eigengame":
+                               args += ["--server=progcomp.ucc.asn.au", "@fifo:../cgi-data/"+client]
+                       subprocess.Popen(args)
+                       time.sleep(1)
+                       
+       else:
+               
+               fifo_out = open_fifo("../cgi-data/"+client+".in", "w")
+               fifo_out.write("%d %d\n" % (x, y))
+               fifo_out.close()
+               
+               
+       
+       sys.stderr.write("\ncgi read from fifo here\n")
+       try:
+               fifo_in = open_fifo("../cgi-data/"+client+".out", "r")
+       except:
+               quit()
+       else:
+               sys.stderr.write("Opened fine\n")
+               s = fifo_in.readline().strip(" \r\n")
+       
+               while s != "SELECT?" and s != "MOVE?" and s.split(" ")[0] not in ["white", "black"]:
+                       if s != "":
+                               print s
+                       s = fifo_in.readline().strip(" \r\n")
+               print s
+               fifo_in.close()
+               if s.split(" ")[0] in ["white", "black"]:
+                       quit()
+       
+       sys.stderr.write("Done\n")
+       return 0
+
+
+if __name__ == "__main__":
+       try:
+               sys.exit(main(sys.argv))
+       except Exception, e:
+               print "Exception: ", e
+               sys.exit(1)