Monkey patch the source to work with gevent
[snf-image-creator] / image_creator / dialog_wizard.py
index d404ba4..f0a01f4 100644 (file)
 # or implied, of GRNET S.A.
 
 import dialog
+import time
+import StringIO
 
-from image_creator.kamaki_wrapper import Kamaki
+from image_creator.kamaki_wrapper import Kamaki, ClientError
+from image_creator.util import MD5, FatalError
+from image_creator.output.cli import OutputWthProgress
+from image_creator.dialog_util import extract_image, update_background_title
 
 PAGE_WIDTH = 70
 
 
+class WizardExit(Exception):
+    pass
+
+
 class Wizard:
     def __init__(self, session):
         self.session = session
@@ -52,7 +61,10 @@ class Wizard:
     def run(self):
         idx = 0
         while True:
-            idx += self.pages[idx].run(self.session, idx, len(self.pages))
+            try:
+                idx += self.pages[idx].run(self.session, idx, len(self.pages))
+            except WizardExit:
+                return False
 
             if idx >= len(self.pages):
                 break
@@ -66,6 +78,49 @@ class WizardPage:
     NEXT = 1
     PREV = -1
 
+    def run(self, session, index, total):
+        raise NotImplementedError
+
+
+class WizardRadioListPage(WizardPage):
+
+    def __init__(self, name, message, choices, **kargs):
+        self.name = name
+        self.message = message
+        self.choices = choices
+        self.title = kargs['title'] if 'title' in kargs else ''
+        self.default = kargs['default'] if 'default' in kargs else 0
+
+    def run(self, session, index, total):
+        d = session['dialog']
+        w = session['wizard']
+
+        choices = []
+        for i in range(len(self.choices)):
+            default = 1 if i == self.default else 0
+            choices.append((self.choices[i][0], self.choices[i][1], default))
+
+        while True:
+            (code, answer) = \
+                d.radiolist(self.message, width=PAGE_WIDTH,
+                            ok_label="Next", cancel="Back", choices=choices,
+                            title="(%d/%d) %s" % (index + 1, total, self.title)
+                            )
+
+            if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
+                return self.PREV
+
+            for i in range(len(choices)):
+                if self.choices[i] == answer:
+                    self.default = i
+                    w[name] = i
+                    break
+
+            return self.NEXT
+
+
+class WizardInputPage(WizardPage):
+
     def __init__(self, name, message, **kargs):
         self.name = name
         self.message = message
@@ -79,9 +134,10 @@ class WizardPage:
 
         init = w[self.name] if self.name in w else self.init_value
         while True:
-            (code, answer) = d.inputbox(self.message, init=init,
-                width=PAGE_WIDTH, ok_label="Next", cancel="Back",
-                title="(%d/%d) %s" % (index + 1, total, self.title))
+            (code, answer) = \
+                d.inputbox(self.message, init=init,
+                           width=PAGE_WIDTH, ok_label="Next", cancel="Back",
+                           title="(%d/%d) %s" % (index + 1, total, self.title))
 
             if code in (d.DIALOG_CANCEL, d.DIALOG_ESC):
                 return self.PREV
@@ -96,28 +152,139 @@ class WizardPage:
         return self.NEXT
 
 
+class WizardYesNoPage(WizardPage):
+
+    def __init__(self, message, **kargs):
+        self.message = message
+        self.title = kargs['title'] if 'title' in kargs else ''
+
+    def run(self, session, index, total):
+        d = session['dialog']
+
+        while True:
+            ret = d.yesno(self.message, width=PAGE_WIDTH, ok_label="Yes",
+                          cancel="Back", extra_button=1, extra_label="Quit",
+                          title="(%d/%d) %s" % (index + 1, total, self.title))
+
+            if ret == d.DIALOG_CANCEL:
+                return self.PREV
+            elif ret == d.DIALOG_EXTRA:
+                raise WizardExit
+            elif ret == d.DIALOG_OK:
+                return self.NEXT
+
+
 def wizard(session):
 
-    name = WizardPage("ImageName", "Please provide a name for the image:",
-                      title="Image Name", init=session['device'].distro)
-    descr = WizardPage("ImageDescription",
-        "Please provide a description for the image:",
-        title="Image Description", empty=True,
-        init=session['metadata']['DESCRIPTION'] if 'DESCRIPTION' in
-        session['metadata'] else '')
-    account = WizardPage("account",
-        "Please provide your ~okeanos account e-mail:",
-        title="~okeanos account information", init=Kamaki.get_account())
-    token = WizardPage("token",
-        "Please provide your ~okeanos account token:",
-        title="~okeanos account token", init=Kamaki.get_token())
+    name = WizardInputPage("ImageName", "Please provide a name for the image:",
+                           title="Image Name", init=session['device'].distro)
+    descr = WizardInputPage("ImageDescription",
+                            "Please provide a description for the image:",
+                            title="Image Description", empty=True,
+                            init=session['metadata']['DESCRIPTION'] if
+                            'DESCRIPTION' in session['metadata'] else '')
+    account = WizardInputPage("account",
+                              "Please provide your ~okeanos account e-mail:",
+                              title="~okeanos account information",
+                              init=Kamaki.get_account())
+    token = WizardInputPage("token",
+                            "Please provide your ~okeanos account token:",
+                            title="~okeanos account token",
+                            init=Kamaki.get_token())
+
+    msg = "All necessary information has been gathered. Confirm and Proceed."
+    proceed = WizardYesNoPage(msg, title="Confirmation")
 
     w = Wizard(session)
+
     w.add_page(name)
     w.add_page(descr)
     w.add_page(account)
     w.add_page(token)
+    w.add_page(proceed)
+
+    if w.run():
+        create_image(session)
+    else:
+        return False
+
+    return True
+
+
+def create_image(session):
+    d = session['dialog']
+    disk = session['disk']
+    device = session['device']
+    snapshot = session['snapshot']
+    image_os = session['image_os']
+    wizard = session['wizard']
+
+    with_progress = OutputWthProgress(True)
+    out = disk.out
+    out.add(with_progress)
+    try:
+        out.clear()
+
+        #Sysprep
+        device.mount(False)
+        image_os.do_sysprep()
+        metadata = image_os.meta
+        device.umount()
+
+        #Shrink
+        size = device.shrink()
+        session['shrinked'] = True
+        update_background_title(session)
+
+        metadata.update(device.meta)
+        metadata['DESCRIPTION'] = wizard['ImageDescription']
+
+        #MD5
+        md5 = MD5(out)
+        session['checksum'] = md5.compute(snapshot, size)
+
+        #Metadata
+        metastring = '\n'.join(
+            ['%s=%s' % (key, value) for (key, value) in metadata.items()])
+        metastring += '\n'
+
+        out.output()
+        try:
+            out.output("Uploading image to pithos:")
+            kamaki = Kamaki(wizard['account'], wizard['token'], out)
+
+            name = "%s-%s.diskdump" % (wizard['ImageName'],
+                                       time.strftime("%Y%m%d%H%M"))
+            pithos_file = ""
+            with open(snapshot, 'rb') as f:
+                pithos_file = kamaki.upload(f, size, name,
+                                            "(1/4)  Calculating block hashes",
+                                            "(2/4)  Uploading missing blocks")
+
+            out.output("(3/4)  Uploading metadata file...", False)
+            kamaki.upload(StringIO.StringIO(metastring), size=len(metastring),
+                          remote_path="%s.%s" % (name, 'meta'))
+            out.success('done')
+            out.output("(4/4)  Uploading md5sum file...", False)
+            md5sumstr = '%s %s\n' % (session['checksum'], name)
+            kamaki.upload(StringIO.StringIO(md5sumstr), size=len(md5sumstr),
+                          remote_path="%s.%s" % (name, 'md5sum'))
+            out.success('done')
+            out.output()
+
+            out.output('Registering image with ~okeanos...', False)
+            kamaki.register(wizard['ImageName'], pithos_file, metadata)
+            out.success('done')
+            out.output()
+
+        except ClientError as e:
+            raise FatalError("Pithos client: %d %s" % (e.status, e.message))
+    finally:
+        out.remove(with_progress)
 
-    return w.run()
+    msg = "The image was successfully uploaded and registered with " \
+          "~okeanos. Would you like to keep a local copy of the image?"
+    if not d.yesno(msg, width=PAGE_WIDTH):
+        extract_image(session)
 
 # vim: set sta sts=4 shiftwidth=4 sw=4 et ai :