Remove "--allow-hosts None" because it magically makes things work

Fixes: 12302
Signed-off-by: Dan Mick <dan.mick@redhat.com>
(cherry picked from commit 5f34b358fc)

bootstrap

@@ -41,5 +41,4 @@ virtualenv --no-site-packages --distribute virtualenv
 # easy_install, and we really wanted pip; next line will fail if pip
 # requirements.txt does not match setup.py requirements -- sucky but
 # good enough for now
-./virtualenv/bin/python setup.py develop \
+./virtualenv/bin/python setup.py develop
-    --allow-hosts None

s3tests/functional/__init__.py

@@ -26,6 +26,9 @@ def get_prefix():
     assert prefix is not None
     return prefix
 
+def is_slow_backend():
+    return slow_backend
+
 def choose_bucket_prefix(template, max_len=30):
     """
     Choose a prefix for our test buckets, so they're easy to identify.
@@ -237,6 +240,7 @@ def setup():
 
     global prefix
     global targets
+    global slow_backend
 
     try:
         template = cfg.get('fixtures', 'bucket prefix')
@@ -244,6 +248,11 @@ def setup():
         template = 'test-{random}-'
     prefix = choose_bucket_prefix(template=template)
 
+    try:
+        slow_backend = cfg.getboolean('fixtures', 'slow backend')
+    except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
+        slow_backend = False
+
     # pull the default_region out, if it exists
     try:
         default_region = cfg.get('fixtures', 'default_region')

s3tests/functional/test_s3.py

@@ -47,6 +47,7 @@ from . import (
     targets,
     config,
     get_prefix,
+    is_slow_backend,
     )
 
 
@@ -4806,6 +4807,7 @@ def test_region_bucket_create_master_access_remove_secondary():
         e = assert_raises(boto.exception.S3ResponseError, master_conn.get_bucket, bucket.name)
         eq(e.status, 404)
 
+
 @attr(resource='object')
 @attr(method='copy')
 @attr(operation='copy object between regions, verify')
@@ -4821,8 +4823,12 @@ def test_region_copy_object():
         print 'created new dest bucket ', dest_bucket.name
         region_sync_meta(targets.main, dest)
 
-        for file_size in (1024, 1024 * 1024, 10 * 1024 * 1024,
+        if is_slow_backend():
-                          100 * 1024 * 1024):
+            sizes = (1024, 10 * 1024 * 1024)
+        else:
+            sizes = (1024, 10 * 1024 * 1024, 100 * 1024 * 1024)
+
+        for file_size in sizes:
             for (k2, r) in targets.main.iteritems():
                 if r == dest_conn:
                     continue

s3tests/readwrite.py

@@ -21,7 +21,7 @@ def reader(bucket, worker_id, file_names, queue, rand):
         objname = rand.choice(file_names)
         key = bucket.new_key(objname)
 
-        fp = realistic.FileVerifier()
+        fp = realistic.FileValidator()
         result = dict(
                 type='r',
                 bucket=bucket.name,
@@ -31,7 +31,7 @@ def reader(bucket, worker_id, file_names, queue, rand):
 
         start = time.time()
         try:
-            key.get_contents_to_file(fp)
+            key.get_contents_to_file(fp._file)
         except gevent.GreenletExit:
             raise
         except Exception as e:
@@ -50,7 +50,7 @@ def reader(bucket, worker_id, file_names, queue, rand):
             end = time.time()
 
             if not fp.valid():
-                m='md5sum check failed start={s} ({se}) end={e} size={sz} obj={o}'.format(s=time.ctime(start), se=start, e=end, sz=fp.size, o=objname)
+                m='md5sum check failed start={s} ({se}) end={e} size={sz} obj={o}'.format(s=time.ctime(start), se=start, e=end, sz=fp._file.tell(), o=objname)
                 result.update(
                     error=dict(
                         msg=m,
@@ -63,13 +63,13 @@ def reader(bucket, worker_id, file_names, queue, rand):
                 result.update(
                     start=start,
                     duration=int(round(elapsed * NANOSECOND)),
-                    chunks=fp.chunks,
                     )
         queue.put(result)
 
 def writer(bucket, worker_id, file_names, files, queue, rand):
     while True:
         fp = next(files)
+        fp.seek(0)
         objname = rand.choice(file_names)
         key = bucket.new_key(objname)
 
@@ -104,7 +104,6 @@ def writer(bucket, worker_id, file_names, files, queue, rand):
             result.update(
                 start=start,
                 duration=int(round(elapsed * NANOSECOND)),
-                chunks=fp.last_chunks,
                 )
 
         queue.put(result)

s3tests/realistic.py

@@ -12,6 +12,62 @@ import os
 NANOSECOND = int(1e9)
 
 
+def generate_file_contents(size):
+    """
+    A helper function to generate binary contents for a given size, and
+    calculates the md5 hash of the contents appending itself at the end of the
+    blob.
+    It uses sha1's hexdigest which is 40 chars long. So any binary generated
+    should remove the last 40 chars from the blob to retrieve the original hash
+    and binary so that validity can be proved.
+    """
+    size = int(size)
+    contents = os.urandom(size)
+    content_hash = hashlib.sha1(contents).hexdigest()
+    return contents + content_hash
+
+
+class FileValidator(object):
+
+    def __init__(self, f=None):
+        self._file = tempfile.SpooledTemporaryFile()
+        self.original_hash = None
+        self.new_hash = None
+        if f:
+            f.seek(0)
+            shutil.copyfileobj(f, self._file)
+
+    def valid(self):
+        """
+        Returns True if this file looks valid. The file is valid if the end
+        of the file has the md5 digest for the first part of the file.
+        """
+        self._file.seek(0)
+        contents = self._file.read()
+        self.original_hash, binary = contents[-40:], contents[:-40]
+        self.new_hash = hashlib.sha1(binary).hexdigest()
+        if not self.new_hash == self.original_hash:
+            print 'original  hash: ', self.original_hash
+            print 'new hash: ', self.new_hash
+            print 'size: ', self._file.tell()
+            return False
+        return True
+
+    # XXX not sure if we need all of these
+    def seek(self, offset, whence=os.SEEK_SET):
+        self._file.seek(offset, whence)
+
+    def tell(self):
+        return self._file.tell()
+
+    def read(self, size=-1):
+        return self._file.read(size)
+
+    def write(self, data):
+        self._file.write(data)
+        self._file.seek(0)
+
+
 class RandomContentFile(object):
     def __init__(self, size, seed):
         self.size = size
@@ -182,6 +238,7 @@ def files(mean, stddev, seed=None):
                 break
         yield RandomContentFile(size=size, seed=rand.getrandbits(32))
 
+
 def files2(mean, stddev, seed=None, numfiles=10):
     """
     Yields file objects with effectively random contents, where the
@@ -192,17 +249,17 @@ def files2(mean, stddev, seed=None, numfiles=10):
     stores `numfiles` files and yields them in a loop.
     """
     # pre-compute all the files (and save with TemporaryFiles)
-    rand_files = files(mean, stddev, seed)
     fs = []
     for _ in xrange(numfiles):
-        f = next(rand_files)
         t = tempfile.SpooledTemporaryFile()
-        shutil.copyfileobj(f, t)
+        t.write(generate_file_contents(random.normalvariate(mean, stddev)))
+        t.seek(0)
         fs.append(t)
 
     while True:
         for f in fs:
-            yield PrecomputedContentFile(f)
+            yield f
+
 
 def names(mean, stddev, charset=None, seed=None):
     """