Remove duplicates for md5 and keep only utils.md5

[osm/osmclient.git] / osmclient / common / utils.py

diff --git a/osmclient/common/utils.py b/osmclient/common/utils.py
index 8e78459..6279234 100644 (file)
--- a/osmclient/common/utils.py
+++ b/osmclient/common/utils.py
@@ -15,18 +15,118 @@
 #    under the License.
 
 import time
+from uuid import UUID
+import hashlib
+import tarfile
+from zipfile import ZipFile
+import re
+import yaml
 
 
-def wait_for_value(func, result=True, wait_time=10, catch_exception = None ):
+def wait_for_value(func, result=True, wait_time=10, catch_exception=None):
     maxtime = time.time() + wait_time
     while time.time() < maxtime:
         try:
             if func() == result:
-                return True 
-        except catch_exception as inst:
+                return True
+        except catch_exception:
             pass
-        time.sleep(1)
+        time.sleep(5)
     try:
         return func() == result
-    except catch_exception as inst:
+    except catch_exception:
         return False
+
+
+def validate_uuid4(uuid_text):
+    try:
+        UUID(uuid_text)
+        return True
+    except (ValueError, TypeError):
+        return False
+
+
+def md5(fname):
+    """
+    Checksum generator
+    :param fname: file path
+    :return: checksum string
+    """
+    hash_md5 = hashlib.md5()
+    with open(fname, "rb") as f:
+        for chunk in iter(lambda: f.read(4096), b""):
+            hash_md5.update(chunk)
+    return hash_md5.hexdigest()
+
+
+def get_key_val_from_pkg(descriptor_file):
+    if descriptor_file.split(".")[-1] == "zip":
+        return get_key_val_from_pkg_sol004(descriptor_file)
+    else:
+        return get_key_val_from_pkg_old(descriptor_file)
+
+
+def get_key_val_from_pkg_sol004(package_file):
+    """Method opens up a package and finds the name of the resulting
+    descriptor (vnfd or nsd name), using SOL004 spec
+    """
+    with ZipFile(package_file) as zipfile:
+        yamlfile = None
+        for filedata in zipfile.infolist():
+            if (
+                re.match(".*.yaml", filedata.filename)
+                and filedata.filename.find("Scripts") < 0
+            ):
+                yamlfile = filedata.filename
+                break
+        if yamlfile is None:
+            return None
+
+        return get_key_val_from_descriptor(zipfile.open(yamlfile))
+
+
+def get_key_val_from_pkg_old(descriptor_file):
+    """Method opens up a package and finds the name of the resulting
+    descriptor (vnfd or nsd name)
+    """
+    tar = tarfile.open(descriptor_file)
+    yamlfile = None
+    for member in tar.getmembers():
+        if re.match(".*.yaml", member.name) and len(member.name.split("/")) == 2:
+            yamlfile = member.name
+            break
+    if yamlfile is None:
+        return None
+
+    result = get_key_val_from_descriptor(tar.extractfile(yamlfile))
+
+    tar.close()
+    return result
+
+
+def get_key_val_from_descriptor(descriptor):
+    dict = yaml.safe_load(descriptor)
+    result = {}
+    for k in dict:
+        if "nsd" in k:
+            result["type"] = "nsd"
+        else:
+            result["type"] = "vnfd"
+
+    if "type" not in result:
+        for k1, v1 in list(dict.items()):
+            if not k1.endswith("-catalog"):
+                continue
+            for k2, v2 in v1.items():
+                if not k2.endswith("nsd") and not k2.endswith("vnfd"):
+                    continue
+                if "nsd" in k2:
+                    result["type"] = "nsd"
+                else:
+                    result["type"] = "vnfd"
+                for entry in v2:
+                    for k3, v3 in list(entry.items()):
+                        # strip off preceeding chars before :
+                        key_name = k3.split(":").pop()
+                        result[key_name] = v3
+    return result