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bh=UYQYXjBMIv63foEeKnvJ2XN6eTLpBDzTxdyw6lauCsA=; b=YnoIWwjQ1r+5w48ZkzOwLh7Pxa6hKqfMWxH8dohqNfa1DNVrwA3eMi4EfnepLCOZBIlD9/ 2477PozdmdrpJn1lXw6bxmntuY+g1Dxlff+lVUAoBgaSMDM9Ec2sEOOEOipzdkNzHaqZmj vAhn1HZW/G1D2ykJOcsy8SGwhCCtiUw= X-MC-Unique: RIl6msnhOM2sCsF4Sfmhog-1 From: Thomas Huth To: qemu-devel@nongnu.org, Paolo Bonzini Cc: Stefan Weil , qemu-trivial@nongnu.org, qemu-block@nongnu.org Subject: [PATCH v2 1/4] util/uri: Remove uri_string_unescape() Date: Tue, 23 Jan 2024 19:22:44 +0100 Message-ID: <20240123182247.432642-2-thuth@redhat.com> In-Reply-To: <20240123182247.432642-1-thuth@redhat.com> References: <20240123182247.432642-1-thuth@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.327, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1706034241564100003 Content-Type: text/plain; charset="utf-8" uri_string_unescape() basically does the same as the glib function g_uri_unescape_segment(). So we can get rid of our implementation completely by simply using the glib function instead. Suggested-by: Stefan Weil [g_uri_unescape_string()] Suggested-by: Paolo Bonzini [g_uri_unescape_segment()] Signed-off-by: Thomas Huth Reviewed-by: Richard Henderson Reviewed-by: Stefan Weil --- include/qemu/uri.h | 1 - util/uri.c | 97 ++++++---------------------------------------- 2 files changed, 11 insertions(+), 87 deletions(-) diff --git a/include/qemu/uri.h b/include/qemu/uri.h index 1855b764f2..f0722b75da 100644 --- a/include/qemu/uri.h +++ b/include/qemu/uri.h @@ -79,7 +79,6 @@ URI *uri_parse_raw(const char *str, int raw); int uri_parse_into(URI *uri, const char *str); char *uri_to_string(URI *uri); char *uri_string_escape(const char *str, const char *list); -char *uri_string_unescape(const char *str, int len, char *target); void uri_free(URI *uri); =20 /* Single web service query parameter 'name=3Dvalue'. */ diff --git a/util/uri.c b/util/uri.c index dcb3305236..fb7823a43c 100644 --- a/util/uri.c +++ b/util/uri.c @@ -267,7 +267,7 @@ static int rfc3986_parse_fragment(URI *uri, const char = **str) if (uri->cleanup & 2) { uri->fragment =3D g_strndup(*str, cur - *str); } else { - uri->fragment =3D uri_string_unescape(*str, cur - *str, NULL); + uri->fragment =3D g_uri_unescape_segment(*str, cur, NULL); } } *str =3D cur; @@ -368,7 +368,7 @@ static int rfc3986_parse_user_info(URI *uri, const char= **str) if (uri->cleanup & 2) { uri->user =3D g_strndup(*str, cur - *str); } else { - uri->user =3D uri_string_unescape(*str, cur - *str, NULL); + uri->user =3D g_uri_unescape_segment(*str, cur, NULL); } } *str =3D cur; @@ -496,7 +496,7 @@ found: if (uri->cleanup & 2) { uri->server =3D g_strndup(host, cur - host); } else { - uri->server =3D uri_string_unescape(host, cur - host, NULL= ); + uri->server =3D g_uri_unescape_segment(host, cur, NULL); } } else { uri->server =3D NULL; @@ -614,7 +614,7 @@ static int rfc3986_parse_path_ab_empty(URI *uri, const = char **str) if (uri->cleanup & 2) { uri->path =3D g_strndup(*str, cur - *str); } else { - uri->path =3D uri_string_unescape(*str, cur - *str, NULL); + uri->path =3D g_uri_unescape_segment(*str, cur, NULL); } } else { uri->path =3D NULL; @@ -663,7 +663,7 @@ static int rfc3986_parse_path_absolute(URI *uri, const = char **str) if (uri->cleanup & 2) { uri->path =3D g_strndup(*str, cur - *str); } else { - uri->path =3D uri_string_unescape(*str, cur - *str, NULL); + uri->path =3D g_uri_unescape_segment(*str, cur, NULL); } } else { uri->path =3D NULL; @@ -709,7 +709,7 @@ static int rfc3986_parse_path_rootless(URI *uri, const = char **str) if (uri->cleanup & 2) { uri->path =3D g_strndup(*str, cur - *str); } else { - uri->path =3D uri_string_unescape(*str, cur - *str, NULL); + uri->path =3D g_uri_unescape_segment(*str, cur, NULL); } } else { uri->path =3D NULL; @@ -755,7 +755,7 @@ static int rfc3986_parse_path_no_scheme(URI *uri, const= char **str) if (uri->cleanup & 2) { uri->path =3D g_strndup(*str, cur - *str); } else { - uri->path =3D uri_string_unescape(*str, cur - *str, NULL); + uri->path =3D g_uri_unescape_segment(*str, cur, NULL); } } else { uri->path =3D NULL; @@ -1561,81 +1561,6 @@ done_cd: return 0; } =20 -static int is_hex(char c) -{ - if (((c >=3D '0') && (c <=3D '9')) || ((c >=3D 'a') && (c <=3D 'f')) || - ((c >=3D 'A') && (c <=3D 'F'))) { - return 1; - } - return 0; -} - -/** - * uri_string_unescape: - * @str: the string to unescape - * @len: the length in bytes to unescape (or <=3D 0 to indicate full str= ing) - * @target: optional destination buffer - * - * Unescaping routine, but does not check that the string is an URI. The - * output is a direct unsigned char translation of %XX values (no encoding) - * Note that the length of the result can only be smaller or same size as - * the input string. - * - * Returns a copy of the string, but unescaped, will return NULL only in c= ase - * of error - */ -char *uri_string_unescape(const char *str, int len, char *target) -{ - char *ret, *out; - const char *in; - - if (str =3D=3D NULL) { - return NULL; - } - if (len <=3D 0) { - len =3D strlen(str); - } - if (len < 0) { - return NULL; - } - - if (target =3D=3D NULL) { - ret =3D g_malloc(len + 1); - } else { - ret =3D target; - } - in =3D str; - out =3D ret; - while (len > 0) { - if ((len > 2) && (*in =3D=3D '%') && (is_hex(in[1])) && (is_hex(in= [2]))) { - in++; - if ((*in >=3D '0') && (*in <=3D '9')) { - *out =3D (*in - '0'); - } else if ((*in >=3D 'a') && (*in <=3D 'f')) { - *out =3D (*in - 'a') + 10; - } else if ((*in >=3D 'A') && (*in <=3D 'F')) { - *out =3D (*in - 'A') + 10; - } - in++; - if ((*in >=3D '0') && (*in <=3D '9')) { - *out =3D *out * 16 + (*in - '0'); - } else if ((*in >=3D 'a') && (*in <=3D 'f')) { - *out =3D *out * 16 + (*in - 'a') + 10; - } else if ((*in >=3D 'A') && (*in <=3D 'F')) { - *out =3D *out * 16 + (*in - 'A') + 10; - } - in++; - len -=3D 3; - out++; - } else { - *out++ =3D *in++; - len--; - } - } - *out =3D 0; - return ret; -} - /** * uri_string_escape: * @str: string to escape @@ -2274,14 +2199,14 @@ struct QueryParams *query_params_parse(const char *= query) * and consistent with CGI.pm we assume value is "". */ else if (!eq) { - name =3D uri_string_unescape(query, end - query, NULL); + name =3D g_uri_unescape_segment(query, end, NULL); value =3D NULL; } /* Or if we have "name=3D" here (works around annoying * problem when calling uri_string_unescape with len =3D 0). */ else if (eq + 1 =3D=3D end) { - name =3D uri_string_unescape(query, eq - query, NULL); + name =3D g_uri_unescape_segment(query, eq, NULL); value =3D g_new0(char, 1); } /* If the '=3D' character is at the beginning then we have @@ -2293,8 +2218,8 @@ struct QueryParams *query_params_parse(const char *qu= ery) =20 /* Otherwise it's "name=3Dvalue". */ else { - name =3D uri_string_unescape(query, eq - query, NULL); - value =3D uri_string_unescape(eq + 1, end - (eq + 1), NULL); + name =3D g_uri_unescape_segment(query, eq, NULL); + value =3D g_uri_unescape_segment(eq + 1, end, NULL); } =20 /* Append to the parameter set. */ --=20 2.43.0 From nobody Tue Nov 26 16:38:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1706034210; cv=none; d=zohomail.com; s=zohoarc; b=D7CpW7dR8pCGXb5gNvqdpmGusGtewFc+NcqSyKTsQZxnSOnwUXAeLZB/UrolbKzjL5Gygu3zWsmyYds0gfy8n/OzimOXl802XflXYrlJ7Csa1CtqX1hc5lhbngxpf17Sp80ktiPLKAfsAo44+S+Q9kjhxsQe/jI3Wkuy0RnKBVI= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1706034210; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; 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Tue, 23 Jan 2024 18:22:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1706034178; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=x1o1IFo/ULhnREYuul7XEnVebp/7UTjuzD1rHQMH6bw=; b=Maqp8I+oUfIupTUABpMRxtcyi4cwj+nvr2HXfxULujysTVzBZHKFVqlOdVTdyyruMXx/3J nAK4HR7KEucYNWPu/cSl/yHzSh/vzLZu8kNMvFcb7vEAw0xW3+6E/sJCNslyj9h4sMypeg 2SLtET+i2AF6j74XOlgY+6iSR9uXTjc= X-MC-Unique: 3F4u8cWeP_ejky3K81sFUA-1 From: Thomas Huth To: qemu-devel@nongnu.org, Paolo Bonzini Cc: Stefan Weil , qemu-trivial@nongnu.org, qemu-block@nongnu.org Subject: [PATCH v2 2/4] util/uri: Remove unused functions uri_resolve() and uri_resolve_relative() Date: Tue, 23 Jan 2024 19:22:45 +0100 Message-ID: <20240123182247.432642-3-thuth@redhat.com> In-Reply-To: <20240123182247.432642-1-thuth@redhat.com> References: <20240123182247.432642-1-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.327, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1706034211684100003 These rather complex functions have never been used since they've been introduced in 2012, so looks like they are not really useful for QEMU. And since the static normalize_uri_path() function is also only used by uri_resolve(), we can remove that function now, too. Reviewed-by: Stefan Weil Reviewed-by: "Daniel P. Berrang=C3=A9" Signed-off-by: Thomas Huth Reviewed-by: Richard Henderson --- include/qemu/uri.h | 2 - util/uri.c | 689 --------------------------------------------- 2 files changed, 691 deletions(-) diff --git a/include/qemu/uri.h b/include/qemu/uri.h index f0722b75da..899ce852f5 100644 --- a/include/qemu/uri.h +++ b/include/qemu/uri.h @@ -72,8 +72,6 @@ typedef struct URI { } URI; =20 URI *uri_new(void); -char *uri_resolve(const char *URI, const char *base); -char *uri_resolve_relative(const char *URI, const char *base); URI *uri_parse(const char *str); URI *uri_parse_raw(const char *str, int raw); int uri_parse_into(URI *uri, const char *str); diff --git a/util/uri.c b/util/uri.c index fb7823a43c..1891ca6fb3 100644 --- a/util/uri.c +++ b/util/uri.c @@ -1355,212 +1355,6 @@ void uri_free(URI *uri) * * ************************************************************************/ =20 -/** - * normalize_uri_path: - * @path: pointer to the path string - * - * Applies the 5 normalization steps to a path string--that is, RFC 2396 - * Section 5.2, steps 6.c through 6.g. - * - * Normalization occurs directly on the string, no new allocation is done - * - * Returns 0 or an error code - */ -static int normalize_uri_path(char *path) -{ - char *cur, *out; - - if (path =3D=3D NULL) { - return -1; - } - - /* Skip all initial "/" chars. We want to get to the beginning of the - * first non-empty segment. - */ - cur =3D path; - while (cur[0] =3D=3D '/') { - ++cur; - } - if (cur[0] =3D=3D '\0') { - return 0; - } - - /* Keep everything we've seen so far. */ - out =3D cur; - - /* - * Analyze each segment in sequence for cases (c) and (d). - */ - while (cur[0] !=3D '\0') { - /* - * c) All occurrences of "./", where "." is a complete path segmen= t, - * are removed from the buffer string. - */ - if ((cur[0] =3D=3D '.') && (cur[1] =3D=3D '/')) { - cur +=3D 2; - /* '//' normalization should be done at this point too */ - while (cur[0] =3D=3D '/') { - cur++; - } - continue; - } - - /* - * d) If the buffer string ends with "." as a complete path segmen= t, - * that "." is removed. - */ - if ((cur[0] =3D=3D '.') && (cur[1] =3D=3D '\0')) { - break; - } - - /* Otherwise keep the segment. */ - while (cur[0] !=3D '/') { - if (cur[0] =3D=3D '\0') { - goto done_cd; - } - (out++)[0] =3D (cur++)[0]; - } - /* nomalize // */ - while ((cur[0] =3D=3D '/') && (cur[1] =3D=3D '/')) { - cur++; - } - - (out++)[0] =3D (cur++)[0]; - } -done_cd: - out[0] =3D '\0'; - - /* Reset to the beginning of the first segment for the next sequence. = */ - cur =3D path; - while (cur[0] =3D=3D '/') { - ++cur; - } - if (cur[0] =3D=3D '\0') { - return 0; - } - - /* - * Analyze each segment in sequence for cases (e) and (f). - * - * e) All occurrences of "/../", where is a - * complete path segment not equal to "..", are removed from the - * buffer string. Removal of these path segments is performed - * iteratively, removing the leftmost matching pattern on each - * iteration, until no matching pattern remains. - * - * f) If the buffer string ends with "/..", where - * is a complete path segment not equal to "..", that - * "/.." is removed. - * - * To satisfy the "iterative" clause in (e), we need to collapse the - * string every time we find something that needs to be removed. Thus, - * we don't need to keep two pointers into the string: we only need a - * "current position" pointer. - */ - while (1) { - char *segp, *tmp; - - /* At the beginning of each iteration of this loop, "cur" points to - * the first character of the segment we want to examine. - */ - - /* Find the end of the current segment. */ - segp =3D cur; - while ((segp[0] !=3D '/') && (segp[0] !=3D '\0')) { - ++segp; - } - - /* If this is the last segment, we're done (we need at least two - * segments to meet the criteria for the (e) and (f) cases). - */ - if (segp[0] =3D=3D '\0') { - break; - } - - /* If the first segment is "..", or if the next segment _isn't_ ".= .", - * keep this segment and try the next one. - */ - ++segp; - if (((cur[0] =3D=3D '.') && (cur[1] =3D=3D '.') && (segp =3D=3D cu= r + 3)) || - ((segp[0] !=3D '.') || (segp[1] !=3D '.') || - ((segp[2] !=3D '/') && (segp[2] !=3D '\0')))) { - cur =3D segp; - continue; - } - - /* If we get here, remove this segment and the next one and back up - * to the previous segment (if there is one), to implement the - * "iteratively" clause. It's pretty much impossible to back up - * while maintaining two pointers into the buffer, so just compact - * the whole buffer now. - */ - - /* If this is the end of the buffer, we're done. */ - if (segp[2] =3D=3D '\0') { - cur[0] =3D '\0'; - break; - } - /* Valgrind complained, strcpy(cur, segp + 3); */ - /* string will overlap, do not use strcpy */ - tmp =3D cur; - segp +=3D 3; - while ((*tmp++ =3D *segp++) !=3D 0) { - /* No further work */ - } - - /* If there are no previous segments, then keep going from here. = */ - segp =3D cur; - while ((segp > path) && ((--segp)[0] =3D=3D '/')) { - /* No further work */ - } - if (segp =3D=3D path) { - continue; - } - - /* "segp" is pointing to the end of a previous segment; find it's - * start. We need to back up to the previous segment and start - * over with that to handle things like "foo/bar/../..". If we - * don't do this, then on the first pass we'll remove the "bar/..", - * but be pointing at the second ".." so we won't realize we can a= lso - * remove the "foo/..". - */ - cur =3D segp; - while ((cur > path) && (cur[-1] !=3D '/')) { - --cur; - } - } - out[0] =3D '\0'; - - /* - * g) If the resulting buffer string still begins with one or more - * complete path segments of "..", then the reference is - * considered to be in error. Implementations may handle this - * error by retaining these components in the resolved path (i.e., - * treating them as part of the final URI), by removing them from - * the resolved path (i.e., discarding relative levels above the - * root), or by avoiding traversal of the reference. - * - * We discard them from the final path. - */ - if (path[0] =3D=3D '/') { - cur =3D path; - while ((cur[0] =3D=3D '/') && (cur[1] =3D=3D '.') && (cur[2] =3D= =3D '.') && - ((cur[3] =3D=3D '/') || (cur[3] =3D=3D '\0'))) { - cur +=3D 3; - } - - if (cur !=3D path) { - out =3D path; - while (cur[0] !=3D '\0') { - (out++)[0] =3D (cur++)[0]; - } - out[0] =3D 0; - } - } - - return 0; -} - /** * uri_string_escape: * @str: string to escape @@ -1631,489 +1425,6 @@ char *uri_string_escape(const char *str, const char= *list) * * ************************************************************************/ =20 -/** - * uri_resolve: - * @URI: the URI instance found in the document - * @base: the base value - * - * Computes he final URI of the reference done by checking that - * the given URI is valid, and building the final URI using the - * base URI. This is processed according to section 5.2 of the - * RFC 2396 - * - * 5.2. Resolving Relative References to Absolute Form - * - * Returns a new URI string (to be freed by the caller) or NULL in case - * of error. - */ -char *uri_resolve(const char *uri, const char *base) -{ - char *val =3D NULL; - int ret, len, indx, cur, out; - URI *ref =3D NULL; - URI *bas =3D NULL; - URI *res =3D NULL; - - /* - * 1) The URI reference is parsed into the potential four components a= nd - * fragment identifier, as described in Section 4.3. - * - * NOTE that a completely empty URI is treated by modern browsers - * as a reference to "." rather than as a synonym for the current - * URI. Should we do that here? - */ - if (uri =3D=3D NULL) { - ret =3D -1; - } else { - if (*uri) { - ref =3D uri_new(); - ret =3D uri_parse_into(ref, uri); - } else { - ret =3D 0; - } - } - if (ret !=3D 0) { - goto done; - } - if ((ref !=3D NULL) && (ref->scheme !=3D NULL)) { - /* - * The URI is absolute don't modify. - */ - val =3D g_strdup(uri); - goto done; - } - if (base =3D=3D NULL) { - ret =3D -1; - } else { - bas =3D uri_new(); - ret =3D uri_parse_into(bas, base); - } - if (ret !=3D 0) { - if (ref) { - val =3D uri_to_string(ref); - } - goto done; - } - if (ref =3D=3D NULL) { - /* - * the base fragment must be ignored - */ - g_free(bas->fragment); - bas->fragment =3D NULL; - val =3D uri_to_string(bas); - goto done; - } - - /* - * 2) If the path component is empty and the scheme, authority, and - * query components are undefined, then it is a reference to the - * current document and we are done. Otherwise, the reference URI's - * query and fragment components are defined as found (or not found) - * within the URI reference and not inherited from the base URI. - * - * NOTE that in modern browsers, the parsing differs from the above - * in the following aspect: the query component is allowed to be - * defined while still treating this as a reference to the current - * document. - */ - res =3D uri_new(); - if ((ref->scheme =3D=3D NULL) && (ref->path =3D=3D NULL) && - ((ref->authority =3D=3D NULL) && (ref->server =3D=3D NULL))) { - res->scheme =3D g_strdup(bas->scheme); - if (bas->authority !=3D NULL) { - res->authority =3D g_strdup(bas->authority); - } else if (bas->server !=3D NULL) { - res->server =3D g_strdup(bas->server); - res->user =3D g_strdup(bas->user); - res->port =3D bas->port; - } - res->path =3D g_strdup(bas->path); - if (ref->query !=3D NULL) { - res->query =3D g_strdup(ref->query); - } else { - res->query =3D g_strdup(bas->query); - } - res->fragment =3D g_strdup(ref->fragment); - goto step_7; - } - - /* - * 3) If the scheme component is defined, indicating that the reference - * starts with a scheme name, then the reference is interpreted as = an - * absolute URI and we are done. Otherwise, the reference URI's - * scheme is inherited from the base URI's scheme component. - */ - if (ref->scheme !=3D NULL) { - val =3D uri_to_string(ref); - goto done; - } - res->scheme =3D g_strdup(bas->scheme); - - res->query =3D g_strdup(ref->query); - res->fragment =3D g_strdup(ref->fragment); - - /* - * 4) If the authority component is defined, then the reference is a - * network-path and we skip to step 7. Otherwise, the reference - * URI's authority is inherited from the base URI's authority - * component, which will also be undefined if the URI scheme does n= ot - * use an authority component. - */ - if ((ref->authority !=3D NULL) || (ref->server !=3D NULL)) { - if (ref->authority !=3D NULL) { - res->authority =3D g_strdup(ref->authority); - } else { - res->server =3D g_strdup(ref->server); - res->user =3D g_strdup(ref->user); - res->port =3D ref->port; - } - res->path =3D g_strdup(ref->path); - goto step_7; - } - if (bas->authority !=3D NULL) { - res->authority =3D g_strdup(bas->authority); - } else if (bas->server !=3D NULL) { - res->server =3D g_strdup(bas->server); - res->user =3D g_strdup(bas->user); - res->port =3D bas->port; - } - - /* - * 5) If the path component begins with a slash character ("/"), then - * the reference is an absolute-path and we skip to step 7. - */ - if ((ref->path !=3D NULL) && (ref->path[0] =3D=3D '/')) { - res->path =3D g_strdup(ref->path); - goto step_7; - } - - /* - * 6) If this step is reached, then we are resolving a relative-path - * reference. The relative path needs to be merged with the base - * URI's path. Although there are many ways to do this, we will - * describe a simple method using a separate string buffer. - * - * Allocate a buffer large enough for the result string. - */ - len =3D 2; /* extra / and 0 */ - if (ref->path !=3D NULL) { - len +=3D strlen(ref->path); - } - if (bas->path !=3D NULL) { - len +=3D strlen(bas->path); - } - res->path =3D g_malloc(len); - res->path[0] =3D 0; - - /* - * a) All but the last segment of the base URI's path component is - * copied to the buffer. In other words, any characters after the - * last (right-most) slash character, if any, are excluded. - */ - cur =3D 0; - out =3D 0; - if (bas->path !=3D NULL) { - while (bas->path[cur] !=3D 0) { - while ((bas->path[cur] !=3D 0) && (bas->path[cur] !=3D '/')) { - cur++; - } - if (bas->path[cur] =3D=3D 0) { - break; - } - - cur++; - while (out < cur) { - res->path[out] =3D bas->path[out]; - out++; - } - } - } - res->path[out] =3D 0; - - /* - * b) The reference's path component is appended to the buffer - * string. - */ - if (ref->path !=3D NULL && ref->path[0] !=3D 0) { - indx =3D 0; - /* - * Ensure the path includes a '/' - */ - if ((out =3D=3D 0) && (bas->server !=3D NULL)) { - res->path[out++] =3D '/'; - } - while (ref->path[indx] !=3D 0) { - res->path[out++] =3D ref->path[indx++]; - } - } - res->path[out] =3D 0; - - /* - * Steps c) to h) are really path normalization steps - */ - normalize_uri_path(res->path); - -step_7: - - /* - * 7) The resulting URI components, including any inherited from the - * base URI, are recombined to give the absolute form of the URI - * reference. - */ - val =3D uri_to_string(res); - -done: - uri_free(ref); - uri_free(bas); - uri_free(res); - return val; -} - -/** - * uri_resolve_relative: - * @URI: the URI reference under consideration - * @base: the base value - * - * Expresses the URI of the reference in terms relative to the - * base. Some examples of this operation include: - * base =3D "http://site1.com/docs/book1.html" - * URI input URI returned - * docs/pic1.gif pic1.gif - * docs/img/pic1.gif img/pic1.gif - * img/pic1.gif ../img/pic1.gif - * http://site1.com/docs/pic1.gif pic1.gif - * http://site2.com/docs/pic1.gif http://site2.com/docs/pic1.gif - * - * base =3D "docs/book1.html" - * URI input URI returned - * docs/pic1.gif pic1.gif - * docs/img/pic1.gif img/pic1.gif - * img/pic1.gif ../img/pic1.gif - * http://site1.com/docs/pic1.gif http://site1.com/docs/pic1.gif - * - * - * Note: if the URI reference is really weird or complicated, it may be - * worthwhile to first convert it into a "nice" one by calling - * uri_resolve (using 'base') before calling this routine, - * since this routine (for reasonable efficiency) assumes URI has - * already been through some validation. - * - * Returns a new URI string (to be freed by the caller) or NULL in case - * error. - */ -char *uri_resolve_relative(const char *uri, const char *base) -{ - char *val =3D NULL; - int ret; - int ix; - int pos =3D 0; - int nbslash =3D 0; - int len; - URI *ref =3D NULL; - URI *bas =3D NULL; - char *bptr, *uptr, *vptr; - int remove_path =3D 0; - - if ((uri =3D=3D NULL) || (*uri =3D=3D 0)) { - return NULL; - } - - /* - * First parse URI into a standard form - */ - ref =3D uri_new(); - /* If URI not already in "relative" form */ - if (uri[0] !=3D '.') { - ret =3D uri_parse_into(ref, uri); - if (ret !=3D 0) { - goto done; /* Error in URI, return NULL */ - } - } else { - ref->path =3D g_strdup(uri); - } - - /* - * Next parse base into the same standard form - */ - if ((base =3D=3D NULL) || (*base =3D=3D 0)) { - val =3D g_strdup(uri); - goto done; - } - bas =3D uri_new(); - if (base[0] !=3D '.') { - ret =3D uri_parse_into(bas, base); - if (ret !=3D 0) { - goto done; /* Error in base, return NULL */ - } - } else { - bas->path =3D g_strdup(base); - } - - /* - * If the scheme / server on the URI differs from the base, - * just return the URI - */ - if ((ref->scheme !=3D NULL) && - ((bas->scheme =3D=3D NULL) || (strcmp(bas->scheme, ref->scheme)) || - (strcmp(bas->server, ref->server)))) { - val =3D g_strdup(uri); - goto done; - } - if (bas->path =3D=3D ref->path || - (bas->path && ref->path && !strcmp(bas->path, ref->path))) { - val =3D g_strdup(""); - goto done; - } - if (bas->path =3D=3D NULL) { - val =3D g_strdup(ref->path); - goto done; - } - if (ref->path =3D=3D NULL) { - ref->path =3D (char *)"/"; - remove_path =3D 1; - } - - /* - * At this point (at last!) we can compare the two paths - * - * First we take care of the special case where either of the - * two path components may be missing (bug 316224) - */ - if (bas->path =3D=3D NULL) { - if (ref->path !=3D NULL) { - uptr =3D ref->path; - if (*uptr =3D=3D '/') { - uptr++; - } - /* exception characters from uri_to_string */ - val =3D uri_string_escape(uptr, "/;&=3D+$,"); - } - goto done; - } - bptr =3D bas->path; - if (ref->path =3D=3D NULL) { - for (ix =3D 0; bptr[ix] !=3D 0; ix++) { - if (bptr[ix] =3D=3D '/') { - nbslash++; - } - } - uptr =3D NULL; - len =3D 1; /* this is for a string terminator only */ - } else { - /* - * Next we compare the two strings and find where they first differ - */ - if ((ref->path[pos] =3D=3D '.') && (ref->path[pos + 1] =3D=3D '/')= ) { - pos +=3D 2; - } - if ((*bptr =3D=3D '.') && (bptr[1] =3D=3D '/')) { - bptr +=3D 2; - } else if ((*bptr =3D=3D '/') && (ref->path[pos] !=3D '/')) { - bptr++; - } - while ((bptr[pos] =3D=3D ref->path[pos]) && (bptr[pos] !=3D 0)) { - pos++; - } - - if (bptr[pos] =3D=3D ref->path[pos]) { - val =3D g_strdup(""); - goto done; /* (I can't imagine why anyone would do this) */ - } - - /* - * In URI, "back up" to the last '/' encountered. This will be the - * beginning of the "unique" suffix of URI - */ - ix =3D pos; - if ((ref->path[ix] =3D=3D '/') && (ix > 0)) { - ix--; - } else if ((ref->path[ix] =3D=3D 0) && (ix > 1) - && (ref->path[ix - 1] =3D=3D '/')) { - ix -=3D 2; - } - for (; ix > 0; ix--) { - if (ref->path[ix] =3D=3D '/') { - break; - } - } - if (ix =3D=3D 0) { - uptr =3D ref->path; - } else { - ix++; - uptr =3D &ref->path[ix]; - } - - /* - * In base, count the number of '/' from the differing point - */ - if (bptr[pos] !=3D ref->path[pos]) { /* check for trivial URI =3D= =3D base */ - for (; bptr[ix] !=3D 0; ix++) { - if (bptr[ix] =3D=3D '/') { - nbslash++; - } - } - } - len =3D strlen(uptr) + 1; - } - - if (nbslash =3D=3D 0) { - if (uptr !=3D NULL) { - /* exception characters from uri_to_string */ - val =3D uri_string_escape(uptr, "/;&=3D+$,"); - } - goto done; - } - - /* - * Allocate just enough space for the returned string - - * length of the remainder of the URI, plus enough space - * for the "../" groups, plus one for the terminator - */ - val =3D g_malloc(len + 3 * nbslash); - vptr =3D val; - /* - * Put in as many "../" as needed - */ - for (; nbslash > 0; nbslash--) { - *vptr++ =3D '.'; - *vptr++ =3D '.'; - *vptr++ =3D '/'; - } - /* - * Finish up with the end of the URI - */ - if (uptr !=3D NULL) { - if ((vptr > val) && (len > 0) && (uptr[0] =3D=3D '/') && - (vptr[-1] =3D=3D '/')) { - memcpy(vptr, uptr + 1, len - 1); - vptr[len - 2] =3D 0; - } else { - memcpy(vptr, uptr, len); - vptr[len - 1] =3D 0; - } - } else { - vptr[len - 1] =3D 0; - } - - /* escape the freshly-built path */ - vptr =3D val; - /* exception characters from uri_to_string */ - val =3D uri_string_escape(vptr, "/;&=3D+$,"); - g_free(vptr); - -done: - /* - * Free the working variables - */ - if (remove_path !=3D 0) { - ref->path =3D NULL; - } - uri_free(ref); - uri_free(bas); - - return val; -} - /* * Utility functions to help parse and assemble query strings. */ --=20 2.43.0 From nobody Tue Nov 26 16:38:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; 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Tue, 23 Jan 2024 13:23:03 -0500 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-376-oqJfgt-UPki_4MoX0Qqqtg-1; Tue, 23 Jan 2024 13:22:56 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E3305837229; Tue, 23 Jan 2024 18:22:55 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.39.192.89]) by smtp.corp.redhat.com (Postfix) with ESMTP id A040F2166B32; Tue, 23 Jan 2024 18:22:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1706034182; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=KD/tlKWfIQ5rMILp5gWITV5ZqTPntnYk9/Os3uTJIdU=; b=bglC4Mgw1jADSK3Egxy1dBo8/qAqzLXuSC1+fmyX5RKYkLQw3AqPcp8FsOiDtV6EC9qVsA 72GQeQku+noRqa5zTNgfBg2ammVbL9OCl5Z9dKzz5phMdy2SAUNE3r7l+AdqYD2rwIEZqe XrJ211RYTPbobkM3z/jzVA+rtJJQ8aE= X-MC-Unique: oqJfgt-UPki_4MoX0Qqqtg-1 From: Thomas Huth To: qemu-devel@nongnu.org, Paolo Bonzini Cc: Stefan Weil , qemu-trivial@nongnu.org, qemu-block@nongnu.org Subject: [PATCH v2 3/4] util/uri: Remove the uri_string_escape() function Date: Tue, 23 Jan 2024 19:22:46 +0100 Message-ID: <20240123182247.432642-4-thuth@redhat.com> In-Reply-To: <20240123182247.432642-1-thuth@redhat.com> References: <20240123182247.432642-1-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.327, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1706034243576100011 Now that uri_resolve_relative() has been removed, this function is not used in QEMU anymore - and if somebody needs this functionality, they can simply use g_uri_escape_string() from the glib instead. Reviewed-by: Stefan Weil Reviewed-by: "Daniel P. Berrang=C3=A9" Signed-off-by: Thomas Huth Reviewed-by: Richard Henderson --- include/qemu/uri.h | 1 - util/uri.c | 70 ---------------------------------------------- 2 files changed, 71 deletions(-) diff --git a/include/qemu/uri.h b/include/qemu/uri.h index 899ce852f5..255e61f452 100644 --- a/include/qemu/uri.h +++ b/include/qemu/uri.h @@ -76,7 +76,6 @@ URI *uri_parse(const char *str); URI *uri_parse_raw(const char *str, int raw); int uri_parse_into(URI *uri, const char *str); char *uri_to_string(URI *uri); -char *uri_string_escape(const char *str, const char *list); void uri_free(URI *uri); =20 /* Single web service query parameter 'name=3Dvalue'. */ diff --git a/util/uri.c b/util/uri.c index 1891ca6fb3..350835b03f 100644 --- a/util/uri.c +++ b/util/uri.c @@ -1349,76 +1349,6 @@ void uri_free(URI *uri) g_free(uri); } =20 -/************************************************************************ - * * - * Helper functions * - * * - ************************************************************************/ - -/** - * uri_string_escape: - * @str: string to escape - * @list: exception list string of chars not to escape - * - * This routine escapes a string to hex, ignoring reserved characters (a-z) - * and the characters in the exception list. - * - * Returns a new escaped string or NULL in case of error. - */ -char *uri_string_escape(const char *str, const char *list) -{ - char *ret, ch; - char *temp; - const char *in; - int len, out; - - if (str =3D=3D NULL) { - return NULL; - } - if (str[0] =3D=3D 0) { - return g_strdup(str); - } - len =3D strlen(str); - if (!(len > 0)) { - return NULL; - } - - len +=3D 20; - ret =3D g_malloc(len); - in =3D str; - out =3D 0; - while (*in !=3D 0) { - if (len - out <=3D 3) { - temp =3D realloc2n(ret, &len); - ret =3D temp; - } - - ch =3D *in; - - if ((ch !=3D '@') && (!IS_UNRESERVED(ch)) && (!strchr(list, ch))) { - unsigned char val; - ret[out++] =3D '%'; - val =3D ch >> 4; - if (val <=3D 9) { - ret[out++] =3D '0' + val; - } else { - ret[out++] =3D 'A' + val - 0xA; - } - val =3D ch & 0xF; - if (val <=3D 9) { - ret[out++] =3D '0' + val; - } else { - ret[out++] =3D 'A' + val - 0xA; - } - in++; - } else { - ret[out++] =3D *in++; - } - } - ret[out] =3D 0; - return ret; -} - /************************************************************************ * * * Public functions * --=20 2.43.0 From nobody Tue Nov 26 16:38:27 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Tue, 23 Jan 2024 13:23:03 -0500 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-202-gUZbvGGvP4aOaS50DUPdnQ-1; Tue, 23 Jan 2024 13:22:58 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9D16C1013667; Tue, 23 Jan 2024 18:22:57 +0000 (UTC) Received: from thuth-p1g4.redhat.com (unknown [10.39.192.89]) by smtp.corp.redhat.com (Postfix) with ESMTP id 3132D2166B32; Tue, 23 Jan 2024 18:22:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1706034181; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=hXzjaPrm8EeY1wCl4uaoHpH5ctPZ6quOFNd2OAdMg6c=; b=NrAd73NdhAcVTUOw6Z6VRpvlAjr3qdgtV2nZr/Ry5+AU55MtuGvymm9kpbcYl9DT7uEwR9 agSRqkQZ58MLMcFZMMKscDBGl+ZJF7Sqlwjculz7ESHnBq2mjfrmfhsKf3OqWYZQg7BoMA Xfx9iChdBNwKoWkTRXeslZty1Y7I3tk= X-MC-Unique: gUZbvGGvP4aOaS50DUPdnQ-1 From: Thomas Huth To: qemu-devel@nongnu.org, Paolo Bonzini Cc: Stefan Weil , qemu-trivial@nongnu.org, qemu-block@nongnu.org Subject: [PATCH v2 4/4] util/uri: Remove unused macros ISA_RESERVED() and ISA_GEN_DELIM() Date: Tue, 23 Jan 2024 19:22:47 +0100 Message-ID: <20240123182247.432642-5-thuth@redhat.com> In-Reply-To: <20240123182247.432642-1-thuth@redhat.com> References: <20240123182247.432642-1-thuth@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=thuth@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.327, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=unavailable autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1706034243572100010 They are not used anywhere, so there's no need to keep them around. Message-ID: <20240122191753.103118-6-thuth@redhat.com> Reviewed-by: Stefan Weil Reviewed-by: Philippe Mathieu-Daud=C3=A9 Reviewed-by: "Daniel P. Berrang=C3=A9" Signed-off-by: Thomas Huth Reviewed-by: Richard Henderson --- util/uri.c | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/util/uri.c b/util/uri.c index 350835b03f..573174bf47 100644 --- a/util/uri.c +++ b/util/uri.c @@ -163,19 +163,6 @@ static void uri_clean(URI *uri); ((*(p) =3D=3D '+')) || ((*(p) =3D=3D ',')) || ((*(p) =3D=3D ';')) || = \ ((*(p) =3D=3D '=3D')) || ((*(p) =3D=3D '\''))) =20 -/* - * gen-delims =3D ":" / "/" / "?" / "#" / "[" / "]" / "@" - */ -#define ISA_GEN_DELIM(p) = \ - (((*(p) =3D=3D ':')) || ((*(p) =3D=3D '/')) || ((*(p) =3D=3D '?')) || = \ - ((*(p) =3D=3D '#')) || ((*(p) =3D=3D '[')) || ((*(p) =3D=3D ']')) || = \ - ((*(p) =3D=3D '@'))) - -/* - * reserved =3D gen-delims / sub-delims - */ -#define ISA_RESERVED(p) (ISA_GEN_DELIM(p) || (ISA_SUB_DELIM(p))) - /* * unreserved =3D ALPHA / DIGIT / "-" / "." / "_" / "~" */ --=20 2.43.0