1 files changed, 131 insertions, 0 deletions
diff --git a/day9/task5_vue/backend/utils.py b/day9/task5_vue/backend/utils.py
new file mode 100644
index 0000000..c1b3a04
--- /dev/null
+++ b/day9/task5_vue/backend/utils.py
@@ -0,0 +1,131 @@
+from io import BytesIO
+
+
+CHUNK_SIZE = 49600
+
+HTTP_STATUS_CODES = {
+    100: "Continue",
+    101: "Switching Protocols",
+    102: "Processing",
+    200: "OK",
+    201: "Created",
+    202: "Accepted",
+    203: "Non Authoritative Information",
+    204: "No Content",
+    205: "Reset Content",
+    206: "Partial Content",
+    207: "Multi Status",
+    226: "IM Used",  # see RFC 3229
+    300: "Multiple Choices",
+    301: "Moved Permanently",
+    302: "Found",
+    303: "See Other",
+    304: "Not Modified",
+    305: "Use Proxy",
+    307: "Temporary Redirect",
+    308: "Permanent Redirect",
+    400: "Bad Request",
+    401: "Unauthorized",
+    402: "Payment Required",  # unused
+    403: "Forbidden",
+    404: "Not Found",
+    405: "Method Not Allowed",
+    406: "Not Acceptable",
+    407: "Proxy Authentication Required",
+    408: "Request Timeout",
+    409: "Conflict",
+    410: "Gone",
+    411: "Length Required",
+    412: "Precondition Failed",
+    413: "Request Entity Too Large",
+    414: "Request URI Too Long",
+    415: "Unsupported Media Type",
+    416: "Requested Range Not Satisfiable",
+    417: "Expectation Failed",
+    418: "I'm a teapot",  # see RFC 2324
+    421: "Misdirected Request",  # see RFC 7540
+    422: "Unprocessable Entity",
+    423: "Locked",
+    424: "Failed Dependency",
+    426: "Upgrade Required",
+    428: "Precondition Required",  # see RFC 6585
+    429: "Too Many Requests",
+    431: "Request Header Fields Too Large",
+    449: "Retry With",  # proprietary MS extension
+    451: "Unavailable For Legal Reasons",
+    500: "Internal Server Error",
+    501: "Not Implemented",
+    502: "Bad Gateway",
+    503: "Service Unavailable",
+    504: "Gateway Timeout",
+    505: "HTTP Version Not Supported",
+    507: "Insufficient Storage",
+    510: "Not Extended",
+}
+
+SUCCESS_CODE = 200
+BAD_REQUEST_CODE = 400
+NOT_FOUND_CODE = 404
+METHOD_NOT_ALLOWED_CODE = 405
+
+
+def render_template(path, **kwargs):
+    with open(path, encoding='utf-8') as f:
+        template = f.read()
+
+    for key in kwargs:
+        template = template.replace(f'%%{key}%%', kwargs[key])
+
+    return template
+
+
+def parse_multipart_form(data: bytes):
+    b = BytesIO(data)
+    separator = b.readline().strip()
+
+    files = []
+
+    while True:
+        line = b.readline().strip().strip(b'-')
+        if not line:
+            break
+
+        headers_raw = []
+        while not line.strip() == b'':
+            headers_raw.append(line.strip().decode())
+            line = b.readline()
+
+        headers = {'Content-Type': headers_raw[1].split(': ')[1]}
+        for pair in headers_raw[0].split(': ')[1].split('; ')[1:]:
+            key, value = pair.split('=')
+            headers[key] = value[1:-1]
+
+        data = b''
+        prev_chunk = b.read(CHUNK_SIZE)
+        chunk = b.read(CHUNK_SIZE)
+        while separator not in (prev_chunk + chunk):
+            data += prev_chunk
+            prev_chunk = chunk
+            chunk = b.read(CHUNK_SIZE)
+
+            if not chunk:
+                break
+
+        chunk = (prev_chunk + chunk)
+        if chunk.startswith(separator) or chunk.endswith(separator):
+            with_sep = chunk.strip(separator)
+        else:
+            if separator in chunk:
+                with_sep, buffer = chunk.split(separator)
+                b = BytesIO(buffer + b.read())
+                b.readline()
+
+            else:
+                with_sep = chunk
+
+        data += with_sep
+        headers['data'] = data
+
+        files.append(headers)
+
+    return files