finishing server

1 files changed, 111 insertions, 0 deletions

diff --git a/share/frontend/impattern/makePattern.py b/share/frontend/impattern/makePattern.py
new file mode 100755
index 0000000..98d298b
--- /dev/null
+++ b/share/frontend/impattern/makePattern.py
@@ -0,0 +1,111 @@
+#!/usr/bin/python2.7
+
+import sys
+import cgi
+from os import getpid, path
+from subprocess import call, Popen, PIPE
+import time
+
+MAIN_DIRECTORY = ""
+BIN_CONVERT = "convert"
+BIN_IDENTIFY = "identify"
+BIN_COMPOSITE = "composite"
+ACCEPTABLE_FILE_TYPES = [".png", ".jpg", ".gif", ".jpeg"]
+
+def usage():
+  sys.stderr.write("$>makePattern.py [ input_file ] [ pattern_file ] [ username ]");
+
+def now():
+    return str(int(time.time()))
+
+def image_dimensions_and_test(filename):
+    ident = Popen([BIN_IDENTIFY, filename], stdout=PIPE).communicate()[0]
+    partz = ident.split(" ")
+    filetype = "."+partz[1]
+    size = partz[6]
+    if filetype.lower() not in ACCEPTABLE_FILE_TYPES:
+      error("file was not an image")
+    return partz[2].split("x")
+
+def error(s):
+    " returns an error and exits the program "
+    print("ERROR: "+s)
+    exit(1)
+
+def hexdir(filename):
+    " creates a two-letter directory name "
+    return sha1(filename.encode()).hexdigest()[:2]
+#repage command convert original.png -resize 425x92 -repage 425x92+0+0 new.png
+
+class Pattern:
+    
+  def __init__(self):
+    self.nametag = "imPattern";
+    self.pid = str(getpid())
+    self.pattern_file = "";
+    self.original_file = "";
+    self.username = "";
+    self.commands = [];
+
+  def makeResultFilename(self):
+    file_base, extension = path.splitext(self.original_file)
+    if len(file_base) > self.MAX_NAME_LENGTH:
+      file_base = file_base[0:self.MAX_NAME_LENGTH]
+    return "%s_%s_%s%s%s" % (file_base, self.username, self.nametag, now(), extension)
+
+  #first step
+  def makeCanvas(self):
+    call([BIN_CONVERT,"-size",self.dimensions[0]+"x"+self.dimensions[1],"canvas:transparent", self.canvas_file])
+
+  #second step use the Canvas as a background
+  def makeMask(self):
+    #tile the pattern pattern on the canvas
+    command = [BIN_COMPOSITE,"-tile", self.pattern_file, self.canvas_file, self.mask_file];
+    call(command)
+    self.commands.append(command)
+    #fuse the tiled file to create a mask
+    #convert thebg.gif -compose Dst_In null: thefile.gif -matte -layers composite new.gif
+    command = [BIN_CONVERT, self.mask_file, "-compose", "Dst_In", "null:", self.original_file, "-matte", "-layers", "composite", self.mask_file]
+    call(command)
+    
+    #cleanup
+    call(["rm", self.canvas_file])
+  
+  #third step
+  def fuseMask(self, fuse_mode="Pin_Light"):
+    call([BIN_CONVERT, self.mask_file, "null:", self.original_file, "-matte", "-compose", fuse_mode, "-layers", "composite", self.result_file])
+    call(["rm", self.mask_file])
+
+  def main(self, input_file_path, pattern_file, username=""):
+    self.pattern_file = pattern_file;
+    self.original_file = input_file_path;
+    self.username = username;
+    self.MAX_NAME_LENGTH = 10;
+
+    self.image_format = self.original_file.split(".")[-1]
+    self.dimensions = ""
+    try:
+      self.dimensions = image_dimensions_and_test(self.original_file);
+    except Exception as e:
+      sys.stderr.write(str(e));
+      error("Unable to determine dimensions")
+    self.canvas_file = self.pid+"blank_canvas.png";
+    self.makeCanvas();
+    self.mask_file = self.pid+"mask_file"+"."+self.image_format;
+    self.makeMask();
+    self.result_file = self.makeResultFilename();
+    self.fuseMask();
+
+if __name__ == "__main__":
+  p = Pattern();
+  if len(sys.argv) < 2 or len(sys.argv) > 3:
+    usage();
+    sys.exit(0);
+  input_file_path = sys.argv[1] 
+  pattern_file = sys.argv[2] 
+  username = "";
+#  username = sys.argv[3] 
+  print input_file_path;
+  print pattern_file;
+  print username;
+  p.main(input_file_path, pattern_file, username);