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https://issues.apache.org/jira/browse/HTTPCLIENT-1982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16812584#comment-16812584
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Anton Pozhidaev edited comment on HTTPCLIENT-1982 at 4/8/19 7:53 PM:
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Hi [~olegk],
I believe it is not reserved in general for URI, but it is reserved for HTTP as
it is used for parameters like
[https://www.example.com/path?par1=val1&par2=val2]
In my case, it is looking like
[https://www.example.com/path?par1=blah%3Dblah] but it is modified to
[https://www.example.com/path?par1=blah=blah|https://www.example.com/path?par1=blah%3Dblah]
I'll try to find some documentation about it.
*UPD*
-The best info I could Find is section 3.4 of RFC3986
[https://tools.ietf.org/html/rfc3986#section-3.4]-
-Which states that "key=value" pairs are used in query (which assumes that "="
bears special meaning. However, RFC is indeed vague about encoding of get
query.-
-And also this SO post [https://stackoverflow.com/a/1455639/1079966]-
*UPD2*
Found better reference [https://www.ietf.org/rfc/rfc2396.txt]
{quote}3.4. Query Component The query component is a string of information to
be interpreted by the resource. query = *uric Within a query component, the
characters ";", "/", "?", ":", "@", "&", "=", "+", ",", and "$" are
reserved.{quote}
was (Author: pozhidaevak):
Hi [~olegk],
I believe it is not reserved in general for URI, but it is reserved for HTTP as
it is used for parameters like
[https://www.example.com/path?par1=val1&par2=val2]
In my case, it is looking like
[https://www.example.com/path?par1=blah%3Dblah] but it is modified to
[https://www.example.com/path?par1=blah=blah|https://www.example.com/path?par1=blah%3Dblah]
I'll try to find some documentation about it.
*UPD*
The best info I could Find is section 3.4 of RFC3986
[https://tools.ietf.org/html/rfc3986#section-3.4]
Which states that "key=value" pairs are used in query (which assumes that "="
bears special meaning. However, RFC is indeed vague about encoding of get
query.
And also this SO post [https://stackoverflow.com/a/1455639/1079966]
> Encoded equals(=) are not preservered
> -------------------------------------
>
> Key: HTTPCLIENT-1982
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1982
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Affects Versions: 4.5.8
> Reporter: Anton Pozhidaev
> Priority: Major
>
> This issue is very similar to HTTPCLIENT-1968.
> But instead of encoded slash, it affects encoded equals (%3D).
> Encoded equals are decoded back in URL ( "%3D" => "=") *only if normalization
> is set to true*.
> However, I believe this is shouldn't be part of normalization.
> The issue is happening somewhere inside URIBuilder.setPathSegments() which is
> called from
> `rewriteURI(URI uri, HttpHost target, EnumSet<URIUtils.UriFlag> flags)` line
> 103
> PS. If the issue will be acknowledged as valid one I can try to prepare PR :)
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