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netrc: support quoted strings

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The .netrc parser now accepts strings within double-quotes in order to
deal with for example passwords containing white space - which
previously was not possible.

A password that starts with a double-quote also ends with one, and
double-quotes themselves are escaped with backslashes, like \". It also
supports \n, \r and \t for newline, carriage return and tabs
respectively.

If the password does not start with a double quote, it will end at first
white space and no escaping is performed.

WARNING: this change is not entirely backwards compatible. If anyone
previously used a double-quote as the first letter of their password,
the parser will now get it differently compared to before. This is
highly unfortunate but hard to avoid.

Reported-by: ImpatientHippo on GitHub
Fixes #8908
Closes #8937
This commit is contained in:
Daniel Stenberg 2022-05-31 09:04:56 +02:00
parent b1f8d50a92
commit eeaae10c0f
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GPG key ID: 5CC908FDB71E12C2
2 changed files with 66 additions and 10 deletions
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3
lib/url.c
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@ -3011,7 +3011,8 @@ static CURLcode override_login(struct Curl_easy *data,
conn->host.name, data->set.str[STRING_NETRC_FILE]);
}
else if(ret < 0) {
return CURLE_OUT_OF_MEMORY;
failf(data, ".netrc parser error");
return CURLE_READ_ERROR;
}
else {
/* set bits.netrc TRUE to remember that we got the name from a .netrc