Merge branch 'mc-1.16.x' into mc-1.18.x

gradle.properties

@@ -5,7 +5,7 @@ kotlin.stdlib.default.dependency=false
 kotlin.jvm.target.validation.mode=error
 
 # Mod properties
-modVersion=1.101.2
+modVersion=1.101.3
 
 # Minecraft properties: We want to configure this here so we can read it in settings.gradle
 mcVersion=1.18.2

src/main/java/dan200/computercraft/core/apis/http/options/AddressPredicate.java

@@ -8,9 +8,13 @@
 import com.google.common.net.InetAddresses;
 import dan200.computercraft.ComputerCraft;
 
+import java.net.Inet6Address;
 import java.net.InetAddress;
 import java.net.InetSocketAddress;
+import java.util.Arrays;
+import java.util.Set;
 import java.util.regex.Pattern;
+import java.util.stream.Collectors;
 
 /**
  * A predicate on an address. Matches against a domain and an ip address.
@@ -135,13 +139,36 @@ final class PrivatePattern implements AddressPredicate
     {
         static final PrivatePattern INSTANCE = new PrivatePattern();
 
+        private static final Set<InetAddress> additionalAddresses = Arrays.stream( new String[] {
+            // Block various cloud providers internal IPs.
+            "100.100.100.200", // Alibaba
+            "192.0.0.192", // Oracle
+        } ).map( InetAddresses::forString ).collect( Collectors.toSet() );
+
         @Override
         public boolean matches( InetAddress socketAddress )
         {
-            return socketAddress.isAnyLocalAddress()
+            return socketAddress.isAnyLocalAddress()   // 0.0.0.0, ::0
-                || socketAddress.isLoopbackAddress()
+                || socketAddress.isLoopbackAddress()   // 127.0.0.0/8, ::1
-                || socketAddress.isLinkLocalAddress()
+                || socketAddress.isLinkLocalAddress()  // 169.254.0.0/16, fe80::/10
-                || socketAddress.isSiteLocalAddress();
+                || socketAddress.isSiteLocalAddress()  // 10.0.0.0/8, 172.16.0.0/12, 192.168.0.0/16, fec0::/10
+                || socketAddress.isMulticastAddress()  // 224.0.0.0/4, ff00::/8
+                || isUniqueLocalAddress( socketAddress ) // fd00::/8
+                || additionalAddresses.contains( socketAddress );
+        }
+
+        /**
+         * Determine if an IP address lives inside the ULA address range.
+         *
+         * @param address The IP address to test.
+         * @return Whether this address sits in the ULA address range.
+         * @see <a href="https://en.wikipedia.org/wiki/Unique_local_address">Unique local address on Wikipedia</a>
+         */
+        private boolean isUniqueLocalAddress( InetAddress address )
+        {
+            // ULA is actually defined as fc00::/7 (so both fc00::/8 and fd00::/8). However, only the latter is actually
+            // defined right now, so let's be conservative.
+            return address instanceof Inet6Address && (address.getAddress()[0] & 0xff) == 0xfd;
         }
     }
 

src/main/java/dan200/computercraft/shared/command/CommandComputerCraft.java

@@ -7,10 +7,13 @@
 
 import com.mojang.brigadier.CommandDispatcher;
 import com.mojang.brigadier.arguments.StringArgumentType;
+import com.mojang.brigadier.builder.RequiredArgumentBuilder;
 import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import com.mojang.brigadier.suggestion.Suggestions;
 import dan200.computercraft.api.peripheral.IPeripheral;
 import dan200.computercraft.core.computer.ComputerSide;
 import dan200.computercraft.core.metrics.Metrics;
+import dan200.computercraft.shared.command.arguments.ComputersArgumentType;
 import dan200.computercraft.shared.command.text.TableBuilder;
 import dan200.computercraft.shared.computer.core.ComputerFamily;
 import dan200.computercraft.shared.computer.core.ServerComputer;
@@ -200,7 +203,10 @@ else if( b.getLevel() == world )
 
             .then( command( "queue" )
                 .requires( UserLevel.ANYONE )
-                .arg( "computer", manyComputers() )
+                .arg(
+                    RequiredArgumentBuilder.<CommandSourceStack, ComputersArgumentType.ComputersSupplier>argument( "computer", manyComputers() )
+                        .suggests( ( context, builder ) -> Suggestions.empty() )
+                )
                 .argManyValue( "args", StringArgumentType.string(), Collections.emptyList() )
                 .executes( ( ctx, args ) -> {
                     Collection<ServerComputer> computers = getComputersArgument( ctx, "computer" );

src/main/java/dan200/computercraft/shared/command/UserLevel.java

@@ -61,12 +61,36 @@ public boolean test( CommandSourceStack source )
         return source.hasPermission( toLevel() );
     }
 
+    /**
+     * Take the union of two {@link UserLevel}s.
+     * <p>
+     * This satisfies the property that for all sources {@code s}, {@code a.test(s) || b.test(s) == (a ∪ b).test(s)}.
+     *
+     * @param left  The first user level to take the union of.
+     * @param right The second user level to take the union of.
+     * @return The union of two levels.
+     */
+    public static UserLevel union( UserLevel left, UserLevel right )
+    {
+        if( left == right ) return left;
+
+        // x ∪ ANYONE = ANYONE
+        if( left == ANYONE || right == ANYONE ) return ANYONE;
+
+        // x ∪ OWNER = OWNER
+        if( left == OWNER ) return right;
+        if( right == OWNER ) return left;
+
+        // At this point, we have x != y and x, y ∈ { OP, OWNER_OP }.
+        return OWNER_OP;
+    }
+
     private static boolean isOwner( CommandSourceStack source )
     {
         MinecraftServer server = source.getServer();
         Entity sender = source.getEntity();
         return server.isDedicatedServer()
             ? source.getEntity() == null && source.hasPermission( 4 ) && source.getTextName().equals( "Server" )
-            : sender instanceof Player player && player.getGameProfile().getName().equalsIgnoreCase( server.getServerModName() );
+            : sender instanceof Player player && server.isSingleplayerOwner( player.getGameProfile() );
     }
 }

src/main/java/dan200/computercraft/shared/command/builder/CommandBuilder.java

@@ -52,10 +52,15 @@ public CommandBuilder<S> requires( Predicate<S> predicate )
         return this;
     }
 
+    public CommandBuilder<S> arg( ArgumentBuilder<S, ?> arg )
+    {
+        args.add( arg );
+        return this;
+    }
+
     public CommandBuilder<S> arg( String name, ArgumentType<?> type )
     {
-        args.add( RequiredArgumentBuilder.argument( name, type ) );
+        return arg( RequiredArgumentBuilder.argument( name, type ) );
-        return this;
     }
 
     public <T> CommandNodeBuilder<S, ArgCommand<S, List<T>>> argManyValue( String name, ArgumentType<T> type, List<T> empty )
@@ -84,7 +89,7 @@ private <T, U> CommandNodeBuilder<S, ArgCommand<S, List<T>>> argMany( String nam
 
         return command -> {
             // The node for no arguments
-            ArgumentBuilder<S, ?> tail = tail( ctx -> command.run( ctx, empty.get() ) );
+            ArgumentBuilder<S, ?> tail = setupTail( ctx -> command.run( ctx, empty.get() ) );
 
             // The node for one or more arguments
             ArgumentBuilder<S, ?> moreArg = RequiredArgumentBuilder
@@ -93,7 +98,7 @@ private <T, U> CommandNodeBuilder<S, ArgCommand<S, List<T>>> argMany( String nam
 
             // Chain all of them together!
             tail.then( moreArg );
-            return link( tail );
+            return buildTail( tail );
         };
     }
 
@@ -106,22 +111,18 @@ private static <T> List<T> getList( CommandContext<?> context, String name )
     @Override
     public CommandNode<S> executes( Command<S> command )
     {
-        if( args.isEmpty() ) throw new IllegalStateException( "Cannot have empty arg chain builder" );
+        return buildTail( setupTail( command ) );
-
-        return link( tail( command ) );
     }
 
-    private ArgumentBuilder<S, ?> tail( Command<S> command )
+    private ArgumentBuilder<S, ?> setupTail( Command<S> command )
     {
-        ArgumentBuilder<S, ?> defaultTail = args.get( args.size() - 1 );
+        return args.get( args.size() - 1 ).executes( command );
-        defaultTail.executes( command );
-        if( requires != null ) defaultTail.requires( requires );
-        return defaultTail;
     }
 
-    private CommandNode<S> link( ArgumentBuilder<S, ?> tail )
+    private CommandNode<S> buildTail( ArgumentBuilder<S, ?> tail )
     {
         for( int i = args.size() - 2; i >= 0; i-- ) tail = args.get( i ).then( tail );
+        if( requires != null ) tail.requires( requires );
         return tail.build();
     }
 }

src/main/java/dan200/computercraft/shared/command/builder/HelpingArgumentBuilder.java

@@ -12,6 +12,7 @@
 import com.mojang.brigadier.context.CommandContext;
 import com.mojang.brigadier.tree.CommandNode;
 import com.mojang.brigadier.tree.LiteralCommandNode;
+import dan200.computercraft.shared.command.UserLevel;
 import net.minecraft.ChatFormatting;
 import net.minecraft.commands.CommandSourceStack;
 import net.minecraft.network.chat.ClickEvent;
@@ -22,6 +23,10 @@
 import javax.annotation.Nonnull;
 import java.util.ArrayList;
 import java.util.Collection;
+import java.util.List;
+import java.util.function.Predicate;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 import static dan200.computercraft.shared.command.text.ChatHelpers.coloured;
 import static dan200.computercraft.shared.command.text.ChatHelpers.translate;
@@ -44,6 +49,33 @@ public static HelpingArgumentBuilder choice( String literal )
         return new HelpingArgumentBuilder( literal );
     }
 
+
+    @Override
+    public LiteralArgumentBuilder<CommandSourceStack> requires( Predicate<CommandSourceStack> requirement )
+    {
+        throw new IllegalStateException( "Cannot use requires on a HelpingArgumentBuilder" );
+    }
+
+    @Override
+    public Predicate<CommandSourceStack> getRequirement()
+    {
+        // The requirement of this node is the union of all child's requirements.
+        List<Predicate<CommandSourceStack>> requirements = Stream.concat(
+            children.stream().map( ArgumentBuilder::getRequirement ),
+            getArguments().stream().map( CommandNode::getRequirement )
+        ).collect( Collectors.toList() );
+
+        // If all requirements are a UserLevel, take the union of those instead.
+        UserLevel userLevel = UserLevel.OWNER;
+        for( Predicate<CommandSourceStack> requirement : requirements )
+        {
+            if( !(requirement instanceof UserLevel level) ) return x -> requirements.stream().anyMatch( y -> y.test( x ) );
+            userLevel = UserLevel.union( userLevel, level );
+        }
+
+        return userLevel;
+    }
+
     @Override
     public LiteralArgumentBuilder<CommandSourceStack> executes( final Command<CommandSourceStack> command )
     {
@@ -99,9 +131,7 @@ private LiteralCommandNode<CommandSourceStack> buildImpl( String id, String comm
         helpCommand.node = node;
 
         // Set up a /... help command
-        LiteralArgumentBuilder<CommandSourceStack> helpNode = LiteralArgumentBuilder.<CommandSourceStack>literal( "help" )
+        LiteralArgumentBuilder<CommandSourceStack> helpNode = LiteralArgumentBuilder.<CommandSourceStack>literal( "help" ).executes( helpCommand );
-            .requires( x -> getArguments().stream().anyMatch( y -> y.getRequirement().test( x ) ) )
-            .executes( helpCommand );
 
         // Add all normal command children to this and the help node
         for( CommandNode<CommandSourceStack> child : getArguments() )

src/main/java/dan200/computercraft/shared/turtle/blocks/BlockTurtle.java

@@ -167,7 +167,7 @@ public void setPlacedBy( @Nonnull Level world, @Nonnull BlockPos pos, @Nonnull B
     @Override
     public float getExplosionResistance( BlockState state, BlockGetter world, BlockPos pos, Explosion explosion )
     {
-        Entity exploder = explosion.getExploder();
+        Entity exploder = explosion == null ? null : explosion.getExploder();
         if( getFamily() == ComputerFamily.ADVANCED || exploder instanceof LivingEntity || exploder instanceof AbstractHurtingProjectile )
         {
             return 2000;

src/main/java/dan200/computercraft/shared/turtle/upgrades/TurtleModem.java

@@ -82,7 +82,7 @@ public TurtleModem( ResourceLocation id, ItemStack stack, boolean advanced )
         }
         else
         {
-            leftOffModel = new ResourceLocation( ComputerCraft.MOD_ID, "turtle_modem_normal_off_left" );
+            leftOffModel = new ResourceLocation( ComputerCraft.MOD_ID, "block/turtle_modem_normal_off_left" );
             rightOffModel = new ResourceLocation( ComputerCraft.MOD_ID, "block/turtle_modem_normal_off_right" );
             leftOnModel = new ResourceLocation( ComputerCraft.MOD_ID, "block/turtle_modem_normal_on_left" );
             rightOnModel = new ResourceLocation( ComputerCraft.MOD_ID, "block/turtle_modem_normal_on_right" );

src/main/resources/data/computercraft/lua/rom/apis/gps.lua

@@ -153,12 +153,22 @@ function locate(_nTimeout, _bDebug)
                     if tFix.nDistance == 0 then
                         pos1, pos2 = tFix.vPosition, nil
                     else
-                        table.insert(tFixes, tFix)
+                        -- Insert our new position in our table, with a maximum of three items. If this is close to a
+                        -- previous position, replace that instead of inserting.
+                        local insIndex = math.min(3, #tFixes + 1)
+                        for i, older in pairs(tFixes) do
+                            if (older.vPosition - tFix.vPosition):length() < 1 then
+                                insIndex = i
+                                break
+                            end
+                        end
+                        tFixes[insIndex] = tFix
+
                         if #tFixes >= 3 then
                             if not pos1 then
-                                pos1, pos2 = trilaterate(tFixes[1], tFixes[2], tFixes[#tFixes])
+                                pos1, pos2 = trilaterate(tFixes[1], tFixes[2], tFixes[3])
                             else
-                                pos1, pos2 = narrow(pos1, pos2, tFixes[#tFixes])
+                                pos1, pos2 = narrow(pos1, pos2, tFixes[3])
                             end
                         end
                     end

src/main/resources/data/computercraft/lua/rom/apis/settings.lua

@@ -74,8 +74,7 @@ function undefine(name)
     details[name] = nil
 end
 
-local function set_value(name, value)
+local function set_value(name, new)
-    local new = reserialize(value)
     local old = values[name]
     if old == nil then
         local opt = details[name]
@@ -103,7 +102,7 @@ function set(name, value)
     local opt = details[name]
     if opt and opt.type then expect(2, value, opt.type) end
 
-    set_value(name, value)
+    set_value(name, reserialize(value))
 end
 
 --- Get the value of a setting.
@@ -214,7 +213,9 @@ function load(sPath)
         if type(k) == "string" and (ty_v == "string" or ty_v == "number" or ty_v == "boolean" or ty_v == "table") then
             local opt = details[k]
             if not opt or not opt.type or ty_v == opt.type then
-                set_value(k, v)
+                -- This may fail if the table is recursive (or otherwise cannot be serialized).
+                local ok, v = pcall(reserialize, v)
+                if ok then set_value(k, v) end
             end
         end
     end

src/main/resources/data/computercraft/lua/rom/apis/textutils.lua

@@ -292,6 +292,13 @@ local g_tLuaKeywords = {
     ["while"] = true,
 }
 
+--- A version of the ipairs iterator which ignores metamethods
+local function inext(tbl, i)
+    i = (i or 0) + 1
+    local v = rawget(tbl, i)
+    if v == nil then return nil else return i, v end
+end
+
 local serialize_infinity = math.huge
 local function serialize_impl(t, tracking, indent, opts)
     local sType = type(t)
@@ -318,11 +325,11 @@ local function serialize_impl(t, tracking, indent, opts)
 
             result = open
             local seen_keys = {}
-            for k, v in ipairs(t) do
+            for k, v in inext, t do
                 seen_keys[k] = true
                 result = result .. sub_indent .. serialize_impl(v, tracking, sub_indent, opts) .. comma
             end
-            for k, v in pairs(t) do
+            for k, v in next, t do
                 if not seen_keys[k] then
                     local sEntry
                     if type(k) == "string" and not g_tLuaKeywords[k] and string.match(k, "^[%a_][%a%d_]*$") then

src/main/resources/data/computercraft/lua/rom/apis/window.lua

@@ -127,11 +127,7 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
         local sEmptyTextColor = tEmptyColorLines[nTextColor]
         local sEmptyBackgroundColor = tEmptyColorLines[nBackgroundColor]
         for y = 1, nHeight do
-            tLines[y] = {
+            tLines[y] = { sEmptyText, sEmptyTextColor, sEmptyBackgroundColor }
-                text = sEmptyText,
-                textColor = sEmptyTextColor,
-                backgroundColor = sEmptyBackgroundColor,
-            }
         end
 
         for i = 0, 15 do
@@ -161,7 +157,7 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
     local function redrawLine(n)
         local tLine = tLines[n]
         parent.setCursorPos(nX, nY + n - 1)
-        parent.blit(tLine.text, tLine.textColor, tLine.backgroundColor)
+        parent.blit(tLine[1], tLine[2], tLine[3])
     end
 
     local function redraw()
@@ -184,9 +180,9 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
                 -- Modify line
                 local tLine = tLines[nCursorY]
                 if nStart == 1 and nEnd == nWidth then
-                    tLine.text = sText
+                    tLine[1] = sText
-                    tLine.textColor = sTextColor
+                    tLine[2] = sTextColor
-                    tLine.backgroundColor = sBackgroundColor
+                    tLine[3] = sBackgroundColor
                 else
                     local sClippedText, sClippedTextColor, sClippedBackgroundColor
                     if nStart < 1 then
@@ -206,9 +202,9 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
                         sClippedBackgroundColor = sBackgroundColor
                     end
 
-                    local sOldText = tLine.text
+                    local sOldText = tLine[1]
-                    local sOldTextColor = tLine.textColor
+                    local sOldTextColor = tLine[2]
-                    local sOldBackgroundColor = tLine.backgroundColor
+                    local sOldBackgroundColor = tLine[3]
                     local sNewText, sNewTextColor, sNewBackgroundColor
                     if nStart > 1 then
                         local nOldEnd = nStart - 1
@@ -227,9 +223,9 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
                         sNewBackgroundColor = sNewBackgroundColor .. string_sub(sOldBackgroundColor, nOldStart, nWidth)
                     end
 
-                    tLine.text = sNewText
+                    tLine[1] = sNewText
-                    tLine.textColor = sNewTextColor
+                    tLine[2] = sNewTextColor
-                    tLine.backgroundColor = sNewBackgroundColor
+                    tLine[3] = sNewBackgroundColor
                 end
 
                 -- Redraw line
@@ -276,11 +272,10 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
         local sEmptyTextColor = tEmptyColorLines[nTextColor]
         local sEmptyBackgroundColor = tEmptyColorLines[nBackgroundColor]
         for y = 1, nHeight do
-            tLines[y] = {
+            local line = tLines[y]
-                text = sEmptyText,
+            line[1] = sEmptyText
-                textColor = sEmptyTextColor,
+            line[2] = sEmptyTextColor
-                backgroundColor = sEmptyBackgroundColor,
+            line[3] = sEmptyBackgroundColor
-            }
         end
         if bVisible then
             redraw()
@@ -291,14 +286,10 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
 
     function window.clearLine()
         if nCursorY >= 1 and nCursorY <= nHeight then
-            local sEmptyText = sEmptySpaceLine
+            local line = tLines[nCursorY]
-            local sEmptyTextColor = tEmptyColorLines[nTextColor]
+            line[1] = sEmptySpaceLine
-            local sEmptyBackgroundColor = tEmptyColorLines[nBackgroundColor]
+            line[2] = tEmptyColorLines[nTextColor]
-            tLines[nCursorY] = {
+            line[3] = tEmptyColorLines[nBackgroundColor]
-                text = sEmptyText,
-                textColor = sEmptyTextColor,
-                backgroundColor = sEmptyBackgroundColor,
-            }
             if bVisible then
                 redrawLine(nCursorY)
                 updateCursorColor()
@@ -427,11 +418,7 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
                 if y >= 1 and y <= nHeight then
                     tNewLines[newY] = tLines[y]
                 else
-                    tNewLines[newY] = {
+                    tNewLines[newY] = { sEmptyText, sEmptyTextColor, sEmptyBackgroundColor }
-                        text = sEmptyText,
-                        textColor = sEmptyTextColor,
-                        backgroundColor = sEmptyBackgroundColor,
-                    }
                 end
             end
             tLines = tNewLines
@@ -474,7 +461,8 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
             error("Line is out of range.", 2)
         end
 
-        return tLines[y].text, tLines[y].textColor, tLines[y].backgroundColor
+        local line = tLines[y]
+        return line[1], line[2], line[3]
     end
 
     -- Other functions
@@ -570,26 +558,22 @@ function create(parent, nX, nY, nWidth, nHeight, bStartVisible)
             local sEmptyBackgroundColor = tEmptyColorLines[nBackgroundColor]
             for y = 1, new_height do
                 if y > nHeight then
-                    tNewLines[y] = {
+                    tNewLines[y] = { sEmptyText, sEmptyTextColor, sEmptyBackgroundColor }
-                        text = sEmptyText,
-                        textColor = sEmptyTextColor,
-                        backgroundColor = sEmptyBackgroundColor,
-                    }
                 else
                     local tOldLine = tLines[y]
                     if new_width == nWidth then
                         tNewLines[y] = tOldLine
                     elseif new_width < nWidth then
                         tNewLines[y] = {
-                            text = string_sub(tOldLine.text, 1, new_width),
+                            string_sub(tOldLine[1], 1, new_width),
-                            textColor = string_sub(tOldLine.textColor, 1, new_width),
+                            string_sub(tOldLine[2], 1, new_width),
-                            backgroundColor = string_sub(tOldLine.backgroundColor, 1, new_width),
+                            string_sub(tOldLine[3], 1, new_width),
                         }
                     else
                         tNewLines[y] = {
-                            text = tOldLine.text .. string_sub(sEmptyText, nWidth + 1, new_width),
+                            tOldLine[1] .. string_sub(sEmptyText, nWidth + 1, new_width),
-                            textColor = tOldLine.textColor .. string_sub(sEmptyTextColor, nWidth + 1, new_width),
+                            tOldLine[2] .. string_sub(sEmptyTextColor, nWidth + 1, new_width),
-                            backgroundColor = tOldLine.backgroundColor .. string_sub(sEmptyBackgroundColor, nWidth + 1, new_width),
+                            tOldLine[3] .. string_sub(sEmptyBackgroundColor, nWidth + 1, new_width),
                         }
                     end
                 end

src/main/resources/data/computercraft/lua/rom/help/changelog.md

@@ -1,3 +1,21 @@
+# New features in CC: Tweaked 1.101.3
+
+* Improve syntax errors when missing commas in tables, and on trailing commas in parameter lists.
+* `speaker` program now reports an error on common unsupported audio formats.
+* Small optimisations to the `window` API.
+
+Several bug fixes:
+* Fix the REPL syntax reporting crashing on valid parses.
+* Ignore metatables in `textutils.serialize`.
+* Fix `gps.locate` returning `nan` when receiving a duplicate location (Wojbie).
+* Ignore metatables in `textutils.serialize`.
+* Fix wireless turtles having an invalid model.
+* Fix crash when turtles are exploded by a null explosion.
+* Lua REPL no longer accepts `)(` as a valid expression.
+* Fix several inconsistencies with `require`/`package.path` in the Lua REPL (Wojbie).
+* Fix private several IP address ranges not being blocked by the `$private` rule.
+* Improve permission checks in the `/computercraft` command.
+
 # New features in CC: Tweaked 1.101.2
 
 * Error messages in `edit` are now displayed in red on advanced computers.

src/main/resources/data/computercraft/lua/rom/help/whatsnew.md

@@ -1,16 +1,19 @@
-New features in CC: Tweaked 1.101.2
+New features in CC: Tweaked 1.101.3
 
-* Error messages in `edit` are now displayed in red on advanced computers.
+* Improve syntax errors when missing commas in tables, and on trailing commas in parameter lists.
-* Improvements to the display of errors in the shell and REPL.
+* `speaker` program now reports an error on common unsupported audio formats.
+* Small optimisations to the `window` API.
 
 Several bug fixes:
-* Fix `import.lua` failing to upload a file.
+* Fix the REPL syntax reporting crashing on valid parses.
-* Fix several issues with sparse Lua tables (Shiranuit).
+* Ignore metatables in `textutils.serialize`.
-* Computer upgrades now accept normal computers, rather than uselessly allowing you to upgrade an advanced computer to an advanced computer!
+* Fix `gps.locate` returning `nan` when receiving a duplicate location (Wojbie).
-* Correctly clamp speaker volume.
+* Ignore metatables in `textutils.serialize`.
-* Fix rednet queueing the wrong message when sending a message to the current computer.
+* Fix wireless turtles having an invalid model.
-* Fix the Lua VM crashing when a `__len` metamethod yields.
+* Fix crash when turtles are exploded by a null explosion.
-* Trim spaces from filesystem paths.
+* Lua REPL no longer accepts `)(` as a valid expression.
-* Correctly format 12AM/PM with `%I`.
+* Fix several inconsistencies with `require`/`package.path` in the Lua REPL (Wojbie).
+* Fix private several IP address ranges not being blocked by the `$private` rule.
+* Improve permission checks in the `/computercraft` command.
 
 Type "help changelog" to see the full version history.

src/main/resources/data/computercraft/lua/rom/modules/main/cc/internal/syntax/errors.lua

@@ -364,6 +364,48 @@ function errors.table_key_equals(start_pos, end_pos)
     }
 end
 
+--[[- There is a trailing comma in this list of function arguments.
+
+@tparam number token The token id.
+@tparam number token_start The start position of the token.
+@tparam number token_end The end position of the token.
+@tparam number prev The start position of the previous entry.
+@treturn table The resulting parse error.
+]]
+function errors.missing_table_comma(token, token_start, token_end, prev)
+    expect(1, token, "number")
+    expect(2, token_start, "number")
+    expect(3, token_end, "number")
+    expect(4, prev, "number")
+
+    return {
+        "Unexpected " .. token_names[token] .. " in table.",
+        annotate(token_start, token_end),
+        annotate(prev + 1, prev + 1, "Are you missing a comma here?"),
+    }
+end
+
+--[[- There is a trailing comma in this list of function arguments.
+
+@tparam number comma_start The start position of the `,` token.
+@tparam number comma_end The end position of the `,` token.
+@tparam number paren_start The start position of the `)` token.
+@tparam number paren_end The end position of the `)` token.
+@treturn table The resulting parse error.
+]]
+function errors.trailing_call_comma(comma_start, comma_end, paren_start, paren_end)
+    expect(1, comma_start, "number")
+    expect(2, comma_end, "number")
+    expect(3, paren_start, "number")
+    expect(4, paren_end, "number")
+
+    return {
+        "Unexpected " .. code(")") .. " in function call.",
+        annotate(paren_start, paren_end),
+        annotate(comma_start, comma_end, "Tip: Try removing this " .. code(",") .. "."),
+    }
+end
+
 --------------------------------------------------------------------------------
 -- Statement parsing errors
 --------------------------------------------------------------------------------

src/main/resources/data/computercraft/lua/rom/modules/main/cc/internal/syntax/init.lua

@@ -17,6 +17,8 @@ local error_printer = require "cc.internal.error_printer"
 local error_sentinel = {}
 
 local function make_context(input)
+    expect(1, input, "string")
+
     local context = {}
 
     local lines = { 1 }
@@ -69,8 +71,9 @@ local function parse(input, start_symbol)
     expect(2, start_symbol, "number")
 
     local context = make_context(input)
-    function context.report(msg)
+    function context.report(msg, ...)
-        expect(1, msg, "table")
+        expect(1, msg, "table", "function")
+        if type(msg) == "function" then msg = msg(...) end
         error_printer(context, msg)
         error(error_sentinel)
     end
@@ -106,8 +109,9 @@ local function parse_repl(input)
     local context = make_context(input)
 
     local last_error = nil
-    function context.report(msg)
+    function context.report(msg, ...)
-        expect(1, msg, "table")
+        expect(1, msg, "table", "function")
+        if type(msg) == "function" then msg = msg(...) end
         last_error = msg
         error(error_sentinel)
     end
@@ -120,22 +124,35 @@ local function parse_repl(input)
         assert(coroutine.resume(parsers[i], context, coroutine.yield, start_code))
     end
 
+    -- Run all parsers together in parallel, feeding them one token at a time.
+    -- Once all parsers have failed, report the last failure (corresponding to
+    -- the longest parse).
     local ok, err = pcall(function()
         local parsers_n = #parsers
         while true do
             local token, start, finish = lexer()
 
-            local stop = true
+            local all_failed = true
             for i = 1, parsers_n do
                 local parser = parsers[i]
-                if coroutine.status(parser) ~= "dead" then
+                if parser then
-                    stop = false
                     local ok, err = coroutine.resume(parser, token, start, finish)
-                    if not ok and err ~= error_sentinel then error(err, 0) end
+                    if ok then
+                        -- This parser accepted our input, succeed immediately.
+                        if coroutine.status(parser) == "dead" then return end
+
+                        all_failed = false -- Otherwise continue parsing.
+                    elseif err ~= error_sentinel then
+                        -- An internal error occurred: propagate it.
+                        error(err, 0)
+                    else
+                        -- The parser failed, stub it out so we don't try to continue using it.
+                        parsers[i] = false
+                    end
                 end
             end
 
-            if stop then error(error_sentinel) end
+            if all_failed then error(error_sentinel) end
         end
     end)
 

src/main/resources/data/computercraft/lua/rom/modules/main/cc/internal/syntax/lexer.lua

@@ -92,7 +92,7 @@ local function lex_number(context, str, start)
     local contents = sub(str, start, pos - 1)
     if not tonumber(contents) then
         -- TODO: Separate error for "2..3"?
-        context.report(errors.malformed_number(start, pos - 1))
+        context.report(errors.malformed_number, start, pos - 1)
     end
 
     return tokens.NUMBER, pos - 1
@@ -114,14 +114,14 @@ local function lex_string(context, str, start_pos, quote)
             return tokens.STRING, pos
         elseif c == "\n" or c == "\r" or c == "" then
             -- We don't call newline here, as that's done for the next token.
-            context.report(errors.unfinished_string(start_pos, pos, quote))
+            context.report(errors.unfinished_string, start_pos, pos, quote)
             return tokens.STRING, pos - 1
         elseif c == "\\" then
             c = sub(str, pos + 1, pos + 1)
             if c == "\n" or c == "\r" then
                 pos = newline(context, str, pos + 1, c)
             elseif c == "" then
-                context.report(errors.unfinished_string_escape(start_pos, pos, quote))
+                context.report(errors.unfinished_string_escape, start_pos, pos, quote)
                 return tokens.STRING, pos
             elseif c == "z" then
                 pos = pos + 2
@@ -129,7 +129,7 @@ local function lex_string(context, str, start_pos, quote)
                     local next_pos, _, c  = find(str, "([%S\r\n])", pos)
 
                     if not next_pos then
-                        context.report(errors.unfinished_string(start_pos, #str, quote))
+                        context.report(errors.unfinished_string, start_pos, #str, quote)
                         return tokens.STRING, #str
                     end
 
@@ -192,7 +192,7 @@ local function lex_long_str(context, str, start, len)
         elseif c == "[" then
             local ok, boundary_pos = lex_long_str_boundary(str, pos + 1, "[")
             if ok and boundary_pos - pos == len and len == 1 then
-                context.report(errors.nested_long_str(pos, boundary_pos))
+                context.report(errors.nested_long_str, pos, boundary_pos)
             end
 
             pos = boundary_pos
@@ -234,12 +234,12 @@ local function lex_token(context, str, pos)
             local end_pos = lex_long_str(context, str, boundary_pos + 1, boundary_pos - pos)
             if end_pos then return tokens.STRING, end_pos end
 
-            context.report(errors.unfinished_long_string(pos, boundary_pos, boundary_pos - pos))
+            context.report(errors.unfinished_long_string, pos, boundary_pos, boundary_pos - pos)
             return tokens.ERROR, #str
         elseif pos + 1 == boundary_pos then -- Just a "["
             return tokens.OSQUARE, pos
         else -- Malformed long string, for instance "[="
-            context.report(errors.malformed_long_string(pos, boundary_pos, boundary_pos - pos))
+            context.report(errors.malformed_long_string, pos, boundary_pos, boundary_pos - pos)
             return tokens.ERROR, boundary_pos
         end
 
@@ -256,7 +256,7 @@ local function lex_token(context, str, pos)
                 local end_pos = lex_long_str(context, str, boundary_pos + 1, boundary_pos - comment_pos)
                 if end_pos then return tokens.COMMENT, end_pos end
 
-                context.report(errors.unfinished_long_comment(pos, boundary_pos, boundary_pos - comment_pos))
+                context.report(errors.unfinished_long_comment, pos, boundary_pos, boundary_pos - comment_pos)
                 return tokens.ERROR, #str
             end
         end
@@ -313,18 +313,18 @@ local function lex_token(context, str, pos)
         if end_pos - pos <= 3 then
             local contents = sub(str, pos, end_pos)
             if contents == "&&" then
-                context.report(errors.wrong_and(pos, end_pos))
+                context.report(errors.wrong_and, pos, end_pos)
                 return tokens.AND, end_pos
             elseif contents == "||" then
-                context.report(errors.wrong_or(pos, end_pos))
+                context.report(errors.wrong_or, pos, end_pos)
                 return tokens.OR, end_pos
             elseif contents == "!=" or contents == "<>" then
-                context.report(errors.wrong_ne(pos, end_pos))
+                context.report(errors.wrong_ne, pos, end_pos)
                 return tokens.NE, end_pos
             end
         end
 
-        context.report(errors.unexpected_character(pos))
+        context.report(errors.unexpected_character, pos)
         return tokens.ERROR, end_pos
     end
 end

src/main/resources/data/computercraft/lua/rom/programs/edit.lua

@@ -107,7 +107,9 @@ local function set_status(text, ok)
     status_text = text
 end
 
-if not bReadOnly and fs.getFreeSpace(sPath) < 1024 then
+if bReadOnly then
+    set_status("File is read only", false)
+elseif fs.getFreeSpace(sPath) < 1024 then
     set_status("Disk is low on space", false)
 else
     local message

src/main/resources/data/computercraft/lua/rom/programs/fun/speaker.lua

@@ -26,6 +26,12 @@ local function pcm_decoder(chunk)
     return buffer
 end
 
+local function report_invalid_format(format)
+    printError(("speaker cannot play %s files."):format(format))
+    local pp = require "cc.pretty"
+    pp.print("Run '" .. pp.text("help speaker", colours.lightGrey) .. "' for information on supported formats.")
+end
+
 
 local cmd = ...
 if cmd == "stop" then
@@ -93,6 +99,11 @@ elseif cmd == "play" then
 
         handle.read(4)
         start = nil
+    -- Detect several other common audio files.
+    elseif start == "OggS" then return report_invalid_format("Ogg")
+    elseif start == "fLaC" then return report_invalid_format("FLAC")
+    elseif start:sub(1, 3) == "ID3" then return report_invalid_format("MP3")
+    elseif start == "<!DO" --[[<!DOCTYPE]] then return report_invalid_format("HTML")
     end
 
     print("Playing " .. file)

src/main/resources/data/computercraft/lua/rom/programs/lua.lua

@@ -21,21 +21,13 @@ local tEnv = {
 }
 setmetatable(tEnv, { __index = _ENV })
 
--- Replace our package.path, so that it loads from the current directory, rather
+-- Replace our require with new instance that loads from the current directory
--- than from /rom/programs. This makes it a little more friendly to use and
+-- rather than from /rom/programs. This makes it more friendly to use and closer
--- closer to what you'd expect.
+-- to what you'd expect.
 do
+    local make_package = require "cc.require".make
     local dir = shell.dir()
-    if dir:sub(1, 1) ~= "/" then dir = "/" .. dir end
+    _ENV.require, _ENV.package = make_package(_ENV, dir)
-    if dir:sub(-1) ~= "/" then dir = dir .. "/" end
-
-    local strip_path = "?;?.lua;?/init.lua;"
-    local path = package.path
-    if path:sub(1, #strip_path) == strip_path then
-        path = path:sub(#strip_path + 1)
-    end
-
-    package.path = dir .. "?;" .. dir .. "?.lua;" .. dir .. "?/init.lua;" .. path
 end
 
 if term.isColour() then
@@ -78,18 +70,13 @@ while running do
 
     local name, offset = "=lua[" .. chunk_idx .. "]", 0
 
-    local force_print = 0
     local func, err = load(input, name, "t", tEnv)
-
+    if load("return " .. input) then
-    local expr_func = load("return _echo(" .. input .. ");", name, "t", tEnv)
+        -- We wrap the expression with a call to _echo(...), which prevents tail
-    if not func then
+        -- calls (and thus confusing errors). Note we check this is a valid
-        if expr_func then
+        -- expression separately, to avoid accepting inputs like `)--` (which are
-            func = expr_func
+        -- parsed as `_echo()--)`.
-            offset = 13
+        func = load("return _echo(" .. input .. "\n)", name, "t", tEnv)
-            force_print = 1
-        end
-    elseif expr_func then
-        func = expr_func
         offset = 13
     end
 
@@ -99,9 +86,8 @@ while running do
 
         local results = table.pack(exception.try(func))
         if results[1] then
-            local n = 1
+            for i = 2, results.n do
-            while n < results.n or n <= force_print do
+                local value = results[i]
-                local value = results[n + 1]
                 local ok, serialised = pcall(pretty.pretty, value, {
                     function_args = settings.get("lua.function_args"),
                     function_source = settings.get("lua.function_source"),
@@ -111,7 +97,6 @@ while running do
                 else
                     print(tostring(value))
                 end
-                n = n + 1
             end
         else
             printError(results[2])

src/test/java/dan200/computercraft/core/apis/http/options/AddressRuleTest.java

@@ -34,7 +34,14 @@ public void matchesPort()
     @ValueSource( strings = {
         "0.0.0.0", "[::]",
         "localhost", "127.0.0.1.nip.io", "127.0.0.1", "[::1]",
-        "172.17.0.1", "192.168.1.114", "[0:0:0:0:0:ffff:c0a8:172]", "10.0.0.1"
+        "172.17.0.1", "192.168.1.114", "[0:0:0:0:0:ffff:c0a8:172]", "10.0.0.1",
+        // Multicast
+        "224.0.0.1", "ff02::1",
+        // Cloud metadata providers
+        "100.100.100.200", // Alibaba
+        "192.0.0.192", // Oracle
+        "fd00:ec2::254", // AWS
+        "169.254.169.254" // AWS, Digital Ocean, GCP, etc..
     } )
     public void blocksLocalDomains( String domain )
     {

src/test/resources/test-rom/spec/modules/cc/internal/syntax/init_spec.lua

@@ -49,4 +49,18 @@ describe("cc.internal.syntax", function()
     describe_golden("the lexer", "lexer_spec.md", true)
     describe_golden("the parser", "parser_spec.md", false)
     describe_golden("the parser (all states)", "parser_exhaustive_spec.md", false)
+
+    describe("the REPL input parser", function()
+        it("returns true when accepted by both parsers", function()
+            helpers.with_window(50, 10, function()
+                expect(syntax.parse_repl("print(x)")):eq(true)
+            end)
+        end)
+
+        it("returns true when accepted by one parser", function()
+            helpers.with_window(50, 10, function()
+                expect(syntax.parse_repl("x")):eq(true)
+            end)
+        end)
+    end)
 end)

src/test/resources/test-rom/spec/modules/cc/internal/syntax/syntax_helpers.lua

@@ -45,8 +45,9 @@ local function capture_parser(input, print_tokens, start)
     end
 
     local context = make_context(input)
-    function context.report(message)
+    function context.report(message, ...)
-        expect(3, message, "table")
+        expect(3, message, "table", "function")
+        if type(message) == "function" then message = message(...) end
 
         for _, msg in ipairs(message) do
             if type(msg) == "table" and msg.tag == "annotate" then