Marco Bungart created HTTPCORE-763:
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Summary: Behaviour of BasicHttpRequest wrt. path is inconsistent
Key: HTTPCORE-763
URL: https://issues.apache.org/jira/browse/HTTPCORE-763
Project: HttpComponents HttpCore
Issue Type: Bug
Components: HttpCore
Affects Versions: 5.3-alpha1, 5.2, 5.1
Reporter: Marco Bungart
The [Setter for {{path}} in
{{BasicHttpRequest}}|https://github.com/apache/httpcomponents-core/blob/26b3bc6d6dc56587afdb12d84361009d55a5197f/httpcore5/src/main/java/org/apache/hc/core5/http/message/BasicHttpRequest.java#L210]
checks whether the parameter {{path}} starts with two slashes and - if so -
throws an {{IllegalArgumentException}} (through the call to
[{{Args.check(...)}}|https://github.com/apache/httpcomponents-core/blob/26b3bc6d6dc56587afdb12d84361009d55a5197f/httpcore5/src/main/java/org/apache/hc/core5/util/Args.java#L39].
Similarly, method
[{{setUri(...)}}|https://github.com/apache/httpcomponents-core/blob/26b3bc6d6dc56587afdb12d84361009d55a5197f/httpcore5/src/main/java/org/apache/hc/core5/http/message/BasicHttpRequest.java#L264]
checks the raw path from tur {{URI}}.
This leads to inconsistent behaviour. A constructor call like:
{code:java}
new BasicHttpRequest("GET", "http", URIAuthority.create("google.com"),
"//search/asdf?q=foobar");
{code}
works fine, while a constructor call like:
{code:java}
new BasicHttpRequest("GET", "http", URIAuthority.create("google.com"),
"doesNotMatter")
.setPath("//search/asdf?q=foobar");
{code}
or
{code:java}
new BasicHttpRequest("GET", URI.create("https://www.google.com//foo";));
{code}
throws an {{{}IllegalArgumentException{}}}.
The Class {{BasicHttpRequest}} was extended in [commit
{{1614d5d}}|https://github.com/apache/httpcomponents-core/commit/1614d5d5a5de6f4faadff9ecb566982d56b65179]
and is present since.
I think what should happen is that the path should only be checked for {{//}}
if the {{authority}} is not set since [RFC 3986 in section
3|https://www.rfc-editor.org/rfc/rfc3986#section-3] specifies:
{code}
The scheme and path components are required, though the path may be
empty (no characters). When authority is present, the path must
either be empty or begin with a slash ("/") character. When
authority is not present, the path cannot begin with two slash
characters ("//").
{code}
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