Breaking: fromObject now throws for entirely bogus values (repeated, map and inner message fields), fixes #601

Author: dcodeIO

dist/light/protobuf.js

@@ -34,6 +34,8 @@ function genValuePartial_fromObject(gen, field, fieldIndex, prop) {
             }); gen
             ("}");
         } else gen
+            ("if(typeof d%s!==\"object\")", prop)
+                ("throw TypeError(%j)", field.fullName + ": object expected")
             ("m%s=types[%d].fromObject(d%s)", prop, fieldIndex, prop);
     } else {
         var isUnsigned = false;
@@ -70,7 +72,7 @@ function genValuePartial_fromObject(gen, field, fieldIndex, prop) {
             case "bytes": gen
                 ("if(typeof d%s===\"string\")", prop)
                     ("util.base64.decode(d%s,m%s=util.newBuffer(util.base64.length(d%s)),0)", prop, prop, prop)
-                ("else if(d%s&&d%s.length)", prop, prop)
+                ("else if(d%s.length)", prop)
                     ("m%s=d%s", prop, prop);
                 break;
             case "string": gen
@@ -110,6 +112,8 @@ converter.fromObject = function fromObject(mtype) {
         // Map fields
         if (field.map) { gen
     ("if(d%s){", prop)
+        ("if(typeof d%s!==\"object\")", prop)
+            ("throw TypeError(%j)", field.fullName + ": object expected")
         ("m%s={}", prop)
         ("for(var ks=Object.keys(d%s),i=0;i<ks.length;++i){", prop);
             genValuePartial_fromObject(gen, field, i, prop + "[ks[i]]")
@@ -119,6 +123,8 @@ converter.fromObject = function fromObject(mtype) {
         // Repeated fields
         } else if (field.repeated) { gen
     ("if(d%s){", prop)
+        ("if(!Array.isArray(d%s))", prop)
+            ("throw TypeError(%j)", field.fullName + ": array expected")
         ("m%s=[]", prop)
         ("for(var i=0;i<d%s.length;++i){", prop);
             genValuePartial_fromObject(gen, field, i, prop + "[i]")

dist/light/protobuf.js.map

@@ -311,6 +311,8 @@ $root.Message = (function() {
         if (object.stringVal !== undefined && object.stringVal !== null)
             message.stringVal = String(object.stringVal);
         if (object.stringRepeated) {
+            if (!Array.isArray(object.stringRepeated))
+                throw TypeError(".Message.stringRepeated: array expected");
             message.stringRepeated = [];
             for (var i = 0; i < object.stringRepeated.length; ++i)
                 message.stringRepeated[i] = String(object.stringRepeated[i]);
@@ -325,6 +327,8 @@ $root.Message = (function() {
             else if (typeof object.uint64Val === "object")
                 message.uint64Val = new $util.LongBits(object.uint64Val.low, object.uint64Val.high).toNumber(true);
         if (object.uint64Repeated) {
+            if (!Array.isArray(object.uint64Repeated))
+                throw TypeError(".Message.uint64Repeated: array expected");
             message.uint64Repeated = [];
             for (var i = 0; i < object.uint64Repeated.length; ++i)
                 if ($util.Long)
@@ -339,14 +343,16 @@ $root.Message = (function() {
         if (object.bytesVal !== undefined && object.bytesVal !== null)
             if (typeof object.bytesVal === "string")
                 $util.base64.decode(object.bytesVal, message.bytesVal = $util.newBuffer($util.base64.length(object.bytesVal)), 0);
-            else if (object.bytesVal && object.bytesVal.length)
+            else if (object.bytesVal.length)
                 message.bytesVal = object.bytesVal;
         if (object.bytesRepeated) {
+            if (!Array.isArray(object.bytesRepeated))
+                throw TypeError(".Message.bytesRepeated: array expected");
             message.bytesRepeated = [];
             for (var i = 0; i < object.bytesRepeated.length; ++i)
                 if (typeof object.bytesRepeated[i] === "string")
                     $util.base64.decode(object.bytesRepeated[i], message.bytesRepeated[i] = $util.newBuffer($util.base64.length(object.bytesRepeated[i])), 0);
-                else if (object.bytesRepeated[i] && object.bytesRepeated[i].length)
+                else if (object.bytesRepeated[i].length)
                     message.bytesRepeated[i] = object.bytesRepeated[i];
         }
         switch (object.enumVal) {
@@ -360,6 +366,8 @@ $root.Message = (function() {
             break;
         }
         if (object.enumRepeated) {
+            if (!Array.isArray(object.enumRepeated))
+                throw TypeError(".Message.enumRepeated: array expected");
             message.enumRepeated = [];
             for (var i = 0; i < object.enumRepeated.length; ++i)
                 switch (object.enumRepeated[i]) {
@@ -375,6 +383,8 @@ $root.Message = (function() {
                 }
         }
         if (object.int64Map) {
+            if (typeof object.int64Map !== "object")
+                throw TypeError(".Message.int64Map: object expected");
             message.int64Map = {};
             for (var keys = Object.keys(object.int64Map), i = 0; i < keys.length; ++i)
                 if ($util.Long)

dist/light/protobuf.min.js

@@ -149,9 +149,14 @@ $root.vector_tile = (function() {
                 return object;
             var message = new $root.vector_tile.Tile();
             if (object.layers) {
+                if (!Array.isArray(object.layers))
+                    throw TypeError(".vector_tile.Tile.layers: array expected");
                 message.layers = [];
-                for (var i = 0; i < object.layers.length; ++i)
+                for (var i = 0; i < object.layers.length; ++i) {
+                    if (typeof object.layers[i] !== "object")
+                        throw TypeError(".vector_tile.Tile.layers: object expected");
                     message.layers[i] = $types[0].fromObject(object.layers[i]);
+                }
             }
             return message;
         };
@@ -744,6 +749,8 @@ $root.vector_tile = (function() {
                     else if (typeof object.id === "object")
                         message.id = new $util.LongBits(object.id.low, object.id.high).toNumber(true);
                 if (object.tags) {
+                    if (!Array.isArray(object.tags))
+                        throw TypeError(".vector_tile.Tile.Feature.tags: array expected");
                     message.tags = [];
                     for (var i = 0; i < object.tags.length; ++i)
                         message.tags[i] = object.tags[i] >>> 0;
@@ -767,6 +774,8 @@ $root.vector_tile = (function() {
                     break;
                 }
                 if (object.geometry) {
+                    if (!Array.isArray(object.geometry))
+                        throw TypeError(".vector_tile.Tile.Feature.geometry: array expected");
                     message.geometry = [];
                     for (var i = 0; i < object.geometry.length; ++i)
                         message.geometry[i] = object.geometry[i] >>> 0;
@@ -1057,19 +1066,31 @@ $root.vector_tile = (function() {
                 if (object.name !== undefined && object.name !== null)
                     message.name = String(object.name);
                 if (object.features) {
+                    if (!Array.isArray(object.features))
+                        throw TypeError(".vector_tile.Tile.Layer.features: array expected");
                     message.features = [];
-                    for (var i = 0; i < object.features.length; ++i)
+                    for (var i = 0; i < object.features.length; ++i) {
+                        if (typeof object.features[i] !== "object")
+                            throw TypeError(".vector_tile.Tile.Layer.features: object expected");
                         message.features[i] = $types[2].fromObject(object.features[i]);
+                    }
                 }
                 if (object.keys) {
+                    if (!Array.isArray(object.keys))
+                        throw TypeError(".vector_tile.Tile.Layer.keys: array expected");
                     message.keys = [];
                     for (var i = 0; i < object.keys.length; ++i)
                         message.keys[i] = String(object.keys[i]);
                 }
                 if (object.values) {
+                    if (!Array.isArray(object.values))
+                        throw TypeError(".vector_tile.Tile.Layer.values: array expected");
                     message.values = [];
-                    for (var i = 0; i < object.values.length; ++i)
+                    for (var i = 0; i < object.values.length; ++i) {
+                        if (typeof object.values[i] !== "object")
+                            throw TypeError(".vector_tile.Tile.Layer.values: object expected");
                         message.values[i] = $types[4].fromObject(object.values[i]);
+                    }
                 }
                 if (object.extent !== undefined && object.extent !== null)
                     message.extent = object.extent >>> 0;

dist/light/protobuf.min.js.gz

@@ -451,47 +451,64 @@ $root.Package = (function() {
             message.author = String(object.author);
         if (object.license !== undefined && object.license !== null)
             message.license = String(object.license);
-        if (object.repository !== undefined && object.repository !== null)
+        if (object.repository !== undefined && object.repository !== null) {
+            if (typeof object.repository !== "object")
+                throw TypeError(".Package.repository: object expected");
             message.repository = $types[6].fromObject(object.repository);
+        }
         if (object.bugs !== undefined && object.bugs !== null)
             message.bugs = String(object.bugs);
         if (object.homepage !== undefined && object.homepage !== null)
             message.homepage = String(object.homepage);
         if (object.keywords) {
+            if (!Array.isArray(object.keywords))
+                throw TypeError(".Package.keywords: array expected");
             message.keywords = [];
             for (var i = 0; i < object.keywords.length; ++i)
                 message.keywords[i] = String(object.keywords[i]);
         }
         if (object.main !== undefined && object.main !== null)
             message.main = String(object.main);
         if (object.bin) {
+            if (typeof object.bin !== "object")
+                throw TypeError(".Package.bin: object expected");
             message.bin = {};
             for (var keys = Object.keys(object.bin), i = 0; i < keys.length; ++i)
                 message.bin[keys[i]] = String(object.bin[keys[i]]);
         }
         if (object.scripts) {
+            if (typeof object.scripts !== "object")
+                throw TypeError(".Package.scripts: object expected");
             message.scripts = {};
             for (var keys = Object.keys(object.scripts), i = 0; i < keys.length; ++i)
                 message.scripts[keys[i]] = String(object.scripts[keys[i]]);
         }
         if (object.dependencies) {
+            if (typeof object.dependencies !== "object")
+                throw TypeError(".Package.dependencies: object expected");
             message.dependencies = {};
             for (var keys = Object.keys(object.dependencies), i = 0; i < keys.length; ++i)
                 message.dependencies[keys[i]] = String(object.dependencies[keys[i]]);
         }
         if (object.optionalDependencies) {
+            if (typeof object.optionalDependencies !== "object")
+                throw TypeError(".Package.optionalDependencies: object expected");
             message.optionalDependencies = {};
             for (var keys = Object.keys(object.optionalDependencies), i = 0; i < keys.length; ++i)
                 message.optionalDependencies[keys[i]] = String(object.optionalDependencies[keys[i]]);
         }
         if (object.devDependencies) {
+            if (typeof object.devDependencies !== "object")
+                throw TypeError(".Package.devDependencies: object expected");
             message.devDependencies = {};
             for (var keys = Object.keys(object.devDependencies), i = 0; i < keys.length; ++i)
                 message.devDependencies[keys[i]] = String(object.devDependencies[keys[i]]);
         }
         if (object.types !== undefined && object.types !== null)
             message.types = String(object.types);
         if (object.cliDependencies) {
+            if (!Array.isArray(object.cliDependencies))
+                throw TypeError(".Package.cliDependencies: array expected");
             message.cliDependencies = [];
             for (var i = 0; i < object.cliDependencies.length; ++i)
                 message.cliDependencies[i] = String(object.cliDependencies[i]);