Add m-esr52 at 52.6.0

1 files changed, 702 insertions, 0 deletions

diff --git a/netwerk/base/nsURLParsers.cpp b/netwerk/base/nsURLParsers.cpp
new file mode 100644
index 000000000..b75ee0c4d
--- /dev/null
+++ b/netwerk/base/nsURLParsers.cpp
@@ -0,0 +1,702 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* 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 "nsURLParsers.h"
+#include "nsURLHelper.h"
+#include "nsString.h"
+#include "nsCRT.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(spec, colon - spec) || (*(colon+1) == ':')) {
+            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 = 0, *query_end = 0;
+    const char *ref_beg = 0;
+    const char *p = 0;
+    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)
+{
+    NS_NOTREACHED("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)
+{
+    NS_PRECONDITION(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 defined(XP_WIN)
+                // 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] == '|') &&
+                    nsCRT::IsAsciiAlpha(spec[2]) &&
+                    ((specLen == 4) || (spec[4] == '/') || (spec[4] == '\\'))) {
+                    pos = 1;
+                    break;  
+                } 
+#endif
+                // 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]=='|') && nsCRT::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) {
+      continue;
+    }
+    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>
+        if (p == userinfo) {
+            // must have a username!
+            return NS_ERROR_MALFORMED_URI;
+        }
+        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(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)
+{
+    NS_PRECONDITION(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)
+{
+    NS_PRECONDITION(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);
+    }
+}