Fix escaping of '#' in parameter values and handling of unescaped '#' in uri #3
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DanGould merged 4 commits intopayjoin:masterfrom Dec 2, 2024
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DanGould
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Dec 2, 2024
DanGould
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'#'' is not in the set qchar indirectly defined in BIP 21, and therefore should be escaped. [BIP 21](https://github.com/bitcoin/bips/blob/master/bip-0021.mediawiki#abnf-grammar): > labelparam = "label=" *qchar > messageparam = "message=" *qchar > otherparam = qchar *qchar [ "=" *qchar ] ... > Here, "qchar" corresponds to valid characters of an RFC 3986 URI query > component, excluding the "=" and "&" characters, which this BIP takes > as separators. [RFC 3986 § 3.4](https://www.rfc-editor.org/rfc/rfc3986#section-3.4): > The query component is indicated by the first question mark ("?") > character and terminated by a number sign ("#") character or by the > end of the URI. [RFC 3986 Appendix A](https://www.rfc-editor.org/rfc/rfc3986#appendix-A): > pchar = unreserved / pct-encoded / sub-delims / ":" / "@" > query = *( pchar / "/" / "?" ) ... > pct-encoded = "%" HEXDIG HEXDIG > unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" ... > sub-delims = "!" / "$" / "&" / "'" / "(" / ")" > / "*" / "+" / "," / ";" / "="
Although behavior for when encountering RFC 3986 fragments in BIP 21 URIs is not specified, according to RFC 3986 it is unambiguously not query data and therefore should be excluded from BIP 21 query parameters.
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