Peter Halicky created HTTPCORE-778:
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Summary: URIBuilder uses incorrect encoding method for URI fragment
Key: HTTPCORE-778
URL: https://issues.apache.org/jira/browse/HTTPCORE-778
Project: HttpComponents HttpCore
Issue Type: Bug
Components: HttpCore
Affects Versions: 5.3.3
Reporter: Peter Halicky
URI fragment is encoded in URIBuilder using:
{code:java}
PercentCodec.encode(sb, this.fragment, this.charset); {code}
(line 372, end of buildString method)
This encodes all characters except UNRESERVED using the percent-format.
As per (obsoleted) RFC2396, URI fragment should use URIC safe-chars.
As per RFC3986, quite a bit more characters should not be encoded:
{code:java}
pct-encoded = "%" HEXDIG HEXDIG
unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~"
sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "="
pchar = unreserved / pct-encoded / sub-delims / ":" / "@"
fragment = *( pchar / "/" / "?" ) {code}
Note that URIBuilder in httpclient 4.5.13 conforms to at least the old RFC2396,
as it uses URIC set of safe characters.
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