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The url_decode() function used by the url_dec converter and a few other call points is ambiguous on its processing of the '+' character which itself isn't stable in the spec. This one belongs to the reserved characters for the query string but not for the path nor the scheme, in which it must be left as-is. It's only in argument strings that follow the application/x-www-form-urlencoded encoding that it must be turned into a space, that is, in query strings and POST arguments. The problem is that the function is used to process full URLs and paths in various configs, and to process query strings from the stats page for example. This patch updates the function to differentiate the situation where it's parsing a path and a query string. A new argument indicates if a query string should be assumed, otherwise it's only assumed after seeing a question mark. The various locations in the code making use of this function were updated to take care of this (most call places were using it to decode POST arguments). The url_dec converter is usually called on path or url samples, so it needs to remain compatible with this and will default to parsing a path and turning the '+' to a space only after a question mark. However in situations where it would explicitly be extracted from a POST or a query string, it now becomes possible to enforce the decoding by passing a non-null value in argument. It seems to be what was reported in issue #585. This fix may be backported to older stable releases. |
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| ebtree | ||
| examples | ||
| include | ||
| reg-tests | ||
| scripts | ||
| src | ||
| tests | ||
| .cirrus.yml | ||
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| BRANCHES | ||
| CHANGELOG | ||
| CONTRIBUTING | ||
| INSTALL | ||
| LICENSE | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
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The HAProxy documentation has been split into a number of different files for ease of use. Please refer to the following files depending on what you're looking for : - INSTALL for instructions on how to build and install HAProxy - BRANCHES to understand the project's life cycle and what version to use - LICENSE for the project's license - CONTRIBUTING for the process to follow to submit contributions The more detailed documentation is located into the doc/ directory : - doc/intro.txt for a quick introduction on HAProxy - doc/configuration.txt for the configuration's reference manual - doc/lua.txt for the Lua's reference manual - doc/SPOE.txt for how to use the SPOE engine - doc/network-namespaces.txt for how to use network namespaces under Linux - doc/management.txt for the management guide - doc/regression-testing.txt for how to use the regression testing suite - doc/peers.txt for the peers protocol reference - doc/coding-style.txt for how to adopt HAProxy's coding style - doc/internals for developer-specific documentation (not all up to date)