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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /netwerk/base/nsURLParsers.cpp
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'netwerk/base/nsURLParsers.cpp')
-rw-r--r--netwerk/base/nsURLParsers.cpp644
1 files changed, 644 insertions, 0 deletions
diff --git a/netwerk/base/nsURLParsers.cpp b/netwerk/base/nsURLParsers.cpp
new file mode 100644
index 0000000000..7dc6567d84
--- /dev/null
+++ b/netwerk/base/nsURLParsers.cpp
@@ -0,0 +1,644 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include <string.h>
+
+#include "mozilla/RangedPtr.h"
+#include "mozilla/TextUtils.h"
+
+#include "nsCRTGlue.h"
+#include "nsURLParsers.h"
+#include "nsURLHelper.h"
+#include "nsString.h"
+
+using namespace mozilla;
+
+//----------------------------------------------------------------------------
+
+static uint32_t CountConsecutiveSlashes(const char* str, int32_t len) {
+ RangedPtr<const char> p(str, len);
+ uint32_t count = 0;
+ while (len-- && *p++ == '/') ++count;
+ return count;
+}
+
+//----------------------------------------------------------------------------
+// nsBaseURLParser implementation
+//----------------------------------------------------------------------------
+
+NS_IMPL_ISUPPORTS(nsAuthURLParser, nsIURLParser)
+NS_IMPL_ISUPPORTS(nsNoAuthURLParser, nsIURLParser)
+
+#define SET_RESULT(component, pos, len) \
+ PR_BEGIN_MACRO \
+ if (component##Pos) *component##Pos = uint32_t(pos); \
+ if (component##Len) *component##Len = int32_t(len); \
+ PR_END_MACRO
+
+#define OFFSET_RESULT(component, offset) \
+ PR_BEGIN_MACRO \
+ if (component##Pos) *component##Pos += (offset); \
+ PR_END_MACRO
+
+NS_IMETHODIMP
+nsBaseURLParser::ParseURL(const char* spec, int32_t specLen,
+ uint32_t* schemePos, int32_t* schemeLen,
+ uint32_t* authorityPos, int32_t* authorityLen,
+ uint32_t* pathPos, int32_t* pathLen) {
+ if (NS_WARN_IF(!spec)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (specLen < 0) specLen = strlen(spec);
+
+ const char* stop = nullptr;
+ const char* colon = nullptr;
+ const char* slash = nullptr;
+ const char* p = spec;
+ uint32_t offset = 0;
+ int32_t len = specLen;
+
+ // skip leading whitespace
+ while (*p == ' ' || *p == '\n' || *p == '\r' || *p == '\t') {
+ spec++;
+ specLen--;
+ offset++;
+
+ p++;
+ len--;
+ }
+
+ for (; len && *p && !colon && !slash; ++p, --len) {
+ switch (*p) {
+ case ':':
+ if (!colon) colon = p;
+ break;
+ case '/': // start of filepath
+ case '?': // start of query
+ case '#': // start of ref
+ if (!slash) slash = p;
+ break;
+ case '@': // username@hostname
+ case '[': // start of IPv6 address literal
+ if (!stop) stop = p;
+ break;
+ }
+ }
+ // disregard the first colon if it follows an '@' or a '['
+ if (colon && stop && colon > stop) colon = nullptr;
+
+ // if the spec only contained whitespace ...
+ if (specLen == 0) {
+ SET_RESULT(scheme, 0, -1);
+ SET_RESULT(authority, 0, 0);
+ SET_RESULT(path, 0, 0);
+ return NS_OK;
+ }
+
+ // ignore trailing whitespace and control characters
+ for (p = spec + specLen - 1; ((unsigned char)*p <= ' ') && (p != spec); --p) {
+ ;
+ }
+
+ specLen = p - spec + 1;
+
+ if (colon && (colon < slash || !slash)) {
+ //
+ // spec = <scheme>:/<the-rest>
+ //
+ // or
+ //
+ // spec = <scheme>:<authority>
+ // spec = <scheme>:<path-no-slashes>
+ //
+ if (!net_IsValidScheme(nsDependentCSubstring(spec, colon - spec))) {
+ return NS_ERROR_MALFORMED_URI;
+ }
+ SET_RESULT(scheme, offset, colon - spec);
+ if (authorityLen || pathLen) {
+ uint32_t schemeLen = colon + 1 - spec;
+ offset += schemeLen;
+ ParseAfterScheme(colon + 1, specLen - schemeLen, authorityPos,
+ authorityLen, pathPos, pathLen);
+ OFFSET_RESULT(authority, offset);
+ OFFSET_RESULT(path, offset);
+ }
+ } else {
+ //
+ // spec = <authority-no-port-or-password>/<path>
+ // spec = <path>
+ //
+ // or
+ //
+ // spec = <authority-no-port-or-password>/<path-with-colon>
+ // spec = <path-with-colon>
+ //
+ // or
+ //
+ // spec = <authority-no-port-or-password>
+ // spec = <path-no-slashes-or-colon>
+ //
+ SET_RESULT(scheme, 0, -1);
+ if (authorityLen || pathLen) {
+ ParseAfterScheme(spec, specLen, authorityPos, authorityLen, pathPos,
+ pathLen);
+ OFFSET_RESULT(authority, offset);
+ OFFSET_RESULT(path, offset);
+ }
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsBaseURLParser::ParseAuthority(const char* auth, int32_t authLen,
+ uint32_t* usernamePos, int32_t* usernameLen,
+ uint32_t* passwordPos, int32_t* passwordLen,
+ uint32_t* hostnamePos, int32_t* hostnameLen,
+ int32_t* port) {
+ if (NS_WARN_IF(!auth)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (authLen < 0) authLen = strlen(auth);
+
+ SET_RESULT(username, 0, -1);
+ SET_RESULT(password, 0, -1);
+ SET_RESULT(hostname, 0, authLen);
+ if (port) *port = -1;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsBaseURLParser::ParseUserInfo(const char* userinfo, int32_t userinfoLen,
+ uint32_t* usernamePos, int32_t* usernameLen,
+ uint32_t* passwordPos, int32_t* passwordLen) {
+ SET_RESULT(username, 0, -1);
+ SET_RESULT(password, 0, -1);
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsBaseURLParser::ParseServerInfo(const char* serverinfo, int32_t serverinfoLen,
+ uint32_t* hostnamePos, int32_t* hostnameLen,
+ int32_t* port) {
+ SET_RESULT(hostname, 0, -1);
+ if (port) *port = -1;
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsBaseURLParser::ParsePath(const char* path, int32_t pathLen,
+ uint32_t* filepathPos, int32_t* filepathLen,
+ uint32_t* queryPos, int32_t* queryLen,
+ uint32_t* refPos, int32_t* refLen) {
+ if (NS_WARN_IF(!path)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (pathLen < 0) pathLen = strlen(path);
+
+ // path = [/]<segment1>/<segment2>/<...>/<segmentN>?<query>#<ref>
+
+ // XXX PL_strnpbrk would be nice, but it's buggy
+
+ // search for first occurrence of either ? or #
+ const char *query_beg = nullptr, *query_end = nullptr;
+ const char* ref_beg = nullptr;
+ const char* p = nullptr;
+ for (p = path; p < path + pathLen; ++p) {
+ // only match the query string if it precedes the reference fragment
+ if (!ref_beg && !query_beg && *p == '?') {
+ query_beg = p + 1;
+ } else if (*p == '#') {
+ ref_beg = p + 1;
+ if (query_beg) query_end = p;
+ break;
+ }
+ }
+
+ if (query_beg) {
+ if (query_end) {
+ SET_RESULT(query, query_beg - path, query_end - query_beg);
+ } else {
+ SET_RESULT(query, query_beg - path, pathLen - (query_beg - path));
+ }
+ } else {
+ SET_RESULT(query, 0, -1);
+ }
+
+ if (ref_beg) {
+ SET_RESULT(ref, ref_beg - path, pathLen - (ref_beg - path));
+ } else {
+ SET_RESULT(ref, 0, -1);
+ }
+
+ const char* end;
+ if (query_beg) {
+ end = query_beg - 1;
+ } else if (ref_beg) {
+ end = ref_beg - 1;
+ } else {
+ end = path + pathLen;
+ }
+
+ // an empty file path is no file path
+ if (end != path) {
+ SET_RESULT(filepath, 0, end - path);
+ } else {
+ SET_RESULT(filepath, 0, -1);
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsBaseURLParser::ParseFilePath(const char* filepath, int32_t filepathLen,
+ uint32_t* directoryPos, int32_t* directoryLen,
+ uint32_t* basenamePos, int32_t* basenameLen,
+ uint32_t* extensionPos, int32_t* extensionLen) {
+ if (NS_WARN_IF(!filepath)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (filepathLen < 0) filepathLen = strlen(filepath);
+
+ if (filepathLen == 0) {
+ SET_RESULT(directory, 0, -1);
+ SET_RESULT(basename, 0, 0); // assume a zero length file basename
+ SET_RESULT(extension, 0, -1);
+ return NS_OK;
+ }
+
+ const char* p;
+ const char* end = filepath + filepathLen;
+
+ // search backwards for filename
+ for (p = end - 1; *p != '/' && p > filepath; --p) {
+ ;
+ }
+ if (*p == '/') {
+ // catch /.. and /.
+ if ((p + 1 < end && *(p + 1) == '.') &&
+ (p + 2 == end || (*(p + 2) == '.' && p + 3 == end))) {
+ p = end - 1;
+ }
+ // filepath = <directory><filename>.<extension>
+ SET_RESULT(directory, 0, p - filepath + 1);
+ ParseFileName(p + 1, end - (p + 1), basenamePos, basenameLen, extensionPos,
+ extensionLen);
+ OFFSET_RESULT(basename, p + 1 - filepath);
+ OFFSET_RESULT(extension, p + 1 - filepath);
+ } else {
+ // filepath = <filename>.<extension>
+ SET_RESULT(directory, 0, -1);
+ ParseFileName(filepath, filepathLen, basenamePos, basenameLen, extensionPos,
+ extensionLen);
+ }
+ return NS_OK;
+}
+
+nsresult nsBaseURLParser::ParseFileName(
+ const char* filename, int32_t filenameLen, uint32_t* basenamePos,
+ int32_t* basenameLen, uint32_t* extensionPos, int32_t* extensionLen) {
+ if (NS_WARN_IF(!filename)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (filenameLen < 0) filenameLen = strlen(filename);
+
+ // no extension if filename ends with a '.'
+ if (filename[filenameLen - 1] != '.') {
+ // ignore '.' at the beginning
+ for (const char* p = filename + filenameLen - 1; p > filename; --p) {
+ if (*p == '.') {
+ // filename = <basename.extension>
+ SET_RESULT(basename, 0, p - filename);
+ SET_RESULT(extension, p + 1 - filename,
+ filenameLen - (p - filename + 1));
+ return NS_OK;
+ }
+ }
+ }
+ // filename = <basename>
+ SET_RESULT(basename, 0, filenameLen);
+ SET_RESULT(extension, 0, -1);
+ return NS_OK;
+}
+
+//----------------------------------------------------------------------------
+// nsNoAuthURLParser implementation
+//----------------------------------------------------------------------------
+
+NS_IMETHODIMP
+nsNoAuthURLParser::ParseAuthority(const char* auth, int32_t authLen,
+ uint32_t* usernamePos, int32_t* usernameLen,
+ uint32_t* passwordPos, int32_t* passwordLen,
+ uint32_t* hostnamePos, int32_t* hostnameLen,
+ int32_t* port) {
+ MOZ_ASSERT_UNREACHABLE("Shouldn't parse auth in a NoAuthURL!");
+ return NS_ERROR_UNEXPECTED;
+}
+
+void nsNoAuthURLParser::ParseAfterScheme(const char* spec, int32_t specLen,
+ uint32_t* authPos, int32_t* authLen,
+ uint32_t* pathPos, int32_t* pathLen) {
+ MOZ_ASSERT(specLen >= 0, "unexpected");
+
+ // everything is the path
+ uint32_t pos = 0;
+ switch (CountConsecutiveSlashes(spec, specLen)) {
+ case 0:
+ case 1:
+ break;
+ case 2: {
+ const char* p = nullptr;
+ if (specLen > 2) {
+ // looks like there is an authority section
+
+ // if the authority looks like a drive number then we
+ // really want to treat it as part of the path
+ // [a-zA-Z][:|]{/\}
+ // i.e one of: c: c:\foo c:/foo c| c|\foo c|/foo
+ if ((specLen > 3) && (spec[3] == ':' || spec[3] == '|') &&
+ IsAsciiAlpha(spec[2]) &&
+ ((specLen == 4) || (spec[4] == '/') || (spec[4] == '\\'))) {
+ pos = 1;
+ break;
+ }
+ // Ignore apparent authority; path is everything after it
+ for (p = spec + 2; p < spec + specLen; ++p) {
+ if (*p == '/' || *p == '?' || *p == '#') break;
+ }
+ }
+ SET_RESULT(auth, 0, -1);
+ if (p && p != spec + specLen) {
+ SET_RESULT(path, p - spec, specLen - (p - spec));
+ } else {
+ SET_RESULT(path, 0, -1);
+ }
+ return;
+ }
+ default:
+ pos = 2;
+ break;
+ }
+ SET_RESULT(auth, pos, 0);
+ SET_RESULT(path, pos, specLen - pos);
+}
+
+#if defined(XP_WIN)
+NS_IMETHODIMP
+nsNoAuthURLParser::ParseFilePath(const char* filepath, int32_t filepathLen,
+ uint32_t* directoryPos, int32_t* directoryLen,
+ uint32_t* basenamePos, int32_t* basenameLen,
+ uint32_t* extensionPos,
+ int32_t* extensionLen) {
+ if (NS_WARN_IF(!filepath)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (filepathLen < 0) filepathLen = strlen(filepath);
+
+ // look for a filepath consisting of only a drive number, which may or
+ // may not have a leading slash.
+ if (filepathLen > 1 && filepathLen < 4) {
+ const char* end = filepath + filepathLen;
+ const char* p = filepath;
+ if (*p == '/') p++;
+ if ((end - p == 2) && (p[1] == ':' || p[1] == '|') && IsAsciiAlpha(*p)) {
+ // filepath = <drive-number>:
+ SET_RESULT(directory, 0, filepathLen);
+ SET_RESULT(basename, 0, -1);
+ SET_RESULT(extension, 0, -1);
+ return NS_OK;
+ }
+ }
+
+ // otherwise fallback on common implementation
+ return nsBaseURLParser::ParseFilePath(filepath, filepathLen, directoryPos,
+ directoryLen, basenamePos, basenameLen,
+ extensionPos, extensionLen);
+}
+#endif
+
+//----------------------------------------------------------------------------
+// nsAuthURLParser implementation
+//----------------------------------------------------------------------------
+
+NS_IMETHODIMP
+nsAuthURLParser::ParseAuthority(const char* auth, int32_t authLen,
+ uint32_t* usernamePos, int32_t* usernameLen,
+ uint32_t* passwordPos, int32_t* passwordLen,
+ uint32_t* hostnamePos, int32_t* hostnameLen,
+ int32_t* port) {
+ nsresult rv;
+
+ if (NS_WARN_IF(!auth)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (authLen < 0) authLen = strlen(auth);
+
+ if (authLen == 0) {
+ SET_RESULT(username, 0, -1);
+ SET_RESULT(password, 0, -1);
+ SET_RESULT(hostname, 0, 0);
+ if (port) *port = -1;
+ return NS_OK;
+ }
+
+ // search backwards for @
+ const char* p = auth + authLen - 1;
+ for (; (*p != '@') && (p > auth); --p) {
+ }
+ if (*p == '@') {
+ // auth = <user-info@server-info>
+ rv = ParseUserInfo(auth, p - auth, usernamePos, usernameLen, passwordPos,
+ passwordLen);
+ if (NS_FAILED(rv)) return rv;
+ rv = ParseServerInfo(p + 1, authLen - (p - auth + 1), hostnamePos,
+ hostnameLen, port);
+ if (NS_FAILED(rv)) return rv;
+ OFFSET_RESULT(hostname, p + 1 - auth);
+
+ // malformed if has a username or password
+ // but no host info, such as: http://u:p@/
+ if ((usernamePos || passwordPos) && (!hostnamePos || !*hostnameLen)) {
+ return NS_ERROR_MALFORMED_URI;
+ }
+ } else {
+ // auth = <server-info>
+ SET_RESULT(username, 0, -1);
+ SET_RESULT(password, 0, -1);
+ rv = ParseServerInfo(auth, authLen, hostnamePos, hostnameLen, port);
+ if (NS_FAILED(rv)) return rv;
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsAuthURLParser::ParseUserInfo(const char* userinfo, int32_t userinfoLen,
+ uint32_t* usernamePos, int32_t* usernameLen,
+ uint32_t* passwordPos, int32_t* passwordLen) {
+ if (NS_WARN_IF(!userinfo)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (userinfoLen < 0) userinfoLen = strlen(userinfo);
+
+ if (userinfoLen == 0) {
+ SET_RESULT(username, 0, -1);
+ SET_RESULT(password, 0, -1);
+ return NS_OK;
+ }
+
+ const char* p = (const char*)memchr(userinfo, ':', userinfoLen);
+ if (p) {
+ // userinfo = <username:password>
+ SET_RESULT(username, 0, p - userinfo);
+ SET_RESULT(password, p - userinfo + 1, userinfoLen - (p - userinfo + 1));
+ } else {
+ // userinfo = <username>
+ SET_RESULT(username, 0, userinfoLen);
+ SET_RESULT(password, 0, -1);
+ }
+ return NS_OK;
+}
+
+NS_IMETHODIMP
+nsAuthURLParser::ParseServerInfo(const char* serverinfo, int32_t serverinfoLen,
+ uint32_t* hostnamePos, int32_t* hostnameLen,
+ int32_t* port) {
+ if (NS_WARN_IF(!serverinfo)) {
+ return NS_ERROR_INVALID_POINTER;
+ }
+
+ if (serverinfoLen < 0) serverinfoLen = strlen(serverinfo);
+
+ if (serverinfoLen == 0) {
+ SET_RESULT(hostname, 0, 0);
+ if (port) *port = -1;
+ return NS_OK;
+ }
+
+ // search backwards for a ':' but stop on ']' (IPv6 address literal
+ // delimiter). check for illegal characters in the hostname.
+ const char* p = serverinfo + serverinfoLen - 1;
+ const char *colon = nullptr, *bracket = nullptr;
+ for (; p > serverinfo; --p) {
+ switch (*p) {
+ case ']':
+ bracket = p;
+ break;
+ case ':':
+ if (bracket == nullptr) colon = p;
+ break;
+ case ' ':
+ // hostname must not contain a space
+ return NS_ERROR_MALFORMED_URI;
+ }
+ }
+
+ if (colon) {
+ // serverinfo = <hostname:port>
+ SET_RESULT(hostname, 0, colon - serverinfo);
+ if (port) {
+ // XXX unfortunately ToInteger is not defined for substrings
+ nsAutoCString buf(colon + 1, serverinfoLen - (colon + 1 - serverinfo));
+ if (buf.Length() == 0) {
+ *port = -1;
+ } else {
+ const char* nondigit = NS_strspnp("0123456789", buf.get());
+ if (nondigit && *nondigit) return NS_ERROR_MALFORMED_URI;
+
+ nsresult err;
+ *port = buf.ToInteger(&err);
+ if (NS_FAILED(err) || *port < 0 ||
+ *port > std::numeric_limits<uint16_t>::max()) {
+ return NS_ERROR_MALFORMED_URI;
+ }
+ }
+ }
+ } else {
+ // serverinfo = <hostname>
+ SET_RESULT(hostname, 0, serverinfoLen);
+ if (port) *port = -1;
+ }
+
+ // In case of IPv6 address check its validity
+ if (*hostnameLen > 1 && *(serverinfo + *hostnamePos) == '[' &&
+ *(serverinfo + *hostnamePos + *hostnameLen - 1) == ']' &&
+ !net_IsValidIPv6Addr(
+ Substring(serverinfo + *hostnamePos + 1, *hostnameLen - 2))) {
+ return NS_ERROR_MALFORMED_URI;
+ }
+
+ return NS_OK;
+}
+
+void nsAuthURLParser::ParseAfterScheme(const char* spec, int32_t specLen,
+ uint32_t* authPos, int32_t* authLen,
+ uint32_t* pathPos, int32_t* pathLen) {
+ MOZ_ASSERT(specLen >= 0, "unexpected");
+
+ uint32_t nslash = CountConsecutiveSlashes(spec, specLen);
+
+ // search for the end of the authority section
+ const char* end = spec + specLen;
+ const char* p;
+ for (p = spec + nslash; p < end; ++p) {
+ if (*p == '/' || *p == '?' || *p == '#') break;
+ }
+ if (p < end) {
+ // spec = [/]<auth><path>
+ SET_RESULT(auth, nslash, p - (spec + nslash));
+ SET_RESULT(path, p - spec, specLen - (p - spec));
+ } else {
+ // spec = [/]<auth>
+ SET_RESULT(auth, nslash, specLen - nslash);
+ SET_RESULT(path, 0, -1);
+ }
+}
+
+//----------------------------------------------------------------------------
+// nsStdURLParser implementation
+//----------------------------------------------------------------------------
+
+void nsStdURLParser::ParseAfterScheme(const char* spec, int32_t specLen,
+ uint32_t* authPos, int32_t* authLen,
+ uint32_t* pathPos, int32_t* pathLen) {
+ MOZ_ASSERT(specLen >= 0, "unexpected");
+
+ uint32_t nslash = CountConsecutiveSlashes(spec, specLen);
+
+ // search for the end of the authority section
+ const char* end = spec + specLen;
+ const char* p;
+ for (p = spec + nslash; p < end; ++p) {
+ if (strchr("/?#;", *p)) break;
+ }
+ switch (nslash) {
+ case 0:
+ case 2:
+ if (p < end) {
+ // spec = (//)<auth><path>
+ SET_RESULT(auth, nslash, p - (spec + nslash));
+ SET_RESULT(path, p - spec, specLen - (p - spec));
+ } else {
+ // spec = (//)<auth>
+ SET_RESULT(auth, nslash, specLen - nslash);
+ SET_RESULT(path, 0, -1);
+ }
+ break;
+ case 1:
+ // spec = /<path>
+ SET_RESULT(auth, 0, -1);
+ SET_RESULT(path, 0, specLen);
+ break;
+ default:
+ // spec = ///[/]<path>
+ SET_RESULT(auth, 2, 0);
+ SET_RESULT(path, 2, specLen - 2);
+ }
+}