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d371e99d1c
This normalizer merges adjacent slashes into a single slash, thus removing empty path segments. See GitHub Issue #714.
61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
/*
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* HTTP request URI normalization.
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*
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* Copyright 2021 Tim Duesterhus <tim@bastelstu.be>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*
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*/
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#include <import/ist.h>
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#include <haproxy/api.h>
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#include <haproxy/uri_normalizer.h>
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/* Merges adjacent slashes in the given path. */
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enum uri_normalizer_err uri_normalizer_path_merge_slashes(const struct ist path, struct ist *dst)
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{
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enum uri_normalizer_err err;
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const size_t size = istclear(dst);
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struct ist newpath = *dst;
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struct ist scanner = path;
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/* The path will either be shortened or have the same length. */
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if (size < istlen(path)) {
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err = URI_NORMALIZER_ERR_ALLOC;
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goto fail;
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}
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while (istlen(scanner) > 0) {
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const char current = istshift(&scanner);
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if (current == '/') {
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while (istlen(scanner) > 0 && *istptr(scanner) == '/')
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scanner = istnext(scanner);
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}
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newpath = __istappend(newpath, current);
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}
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*dst = newpath;
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return URI_NORMALIZER_ERR_NONE;
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fail:
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return err;
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}
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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