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Fix regex matching and add more tests for addSubNode, refs #3721, fixes #3716

pull/3724/head
Jordi Boggiano 2015-02-09 19:11:32 +00:00
parent 39b3a19cf7
commit 6c971c3028
2 changed files with 110 additions and 26 deletions
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56
src/Composer/Json/JsonManipulator.php
View File

@ -31,7 +31,7 @@ class JsonManipulator
if (!self::$RECURSE_BLOCKS) {
self::$RECURSE_BLOCKS = '(?:[^{}]*|\{(?:[^{}]*|\{(?:[^{}]*|\{(?:[^{}]*|\{[^{}]*\})*\})*\})*\})*';
self::$RECURSE_ARRAYS = '(?:[^\]]*|\[(?:[^\]]*|\[(?:[^\]]*|\[(?:[^\]]*|\[[^\]]*\])*\])*\])*\]|'.self::$RECURSE_BLOCKS.')*';
self::$JSON_STRING = '"(?:\\\\["bfnrt/\\\\]|\\\\u[a-fA-F0-9]{4}|[^\0-\x09\x0a-\x1f\\\\"])*"';
self::$JSON_STRING = '"(?:[^\0-\x09\x0a-\x1f\\\\"]+|\\\\["bfnrt/\\\\]|\\\\u[a-fA-F0-9]{4})*"';
self::$JSON_VALUE = '(?:[0-9.]+|null|true|false|'.self::$JSON_STRING.'|\['.self::$RECURSE_ARRAYS.'\]|\{'.self::$RECURSE_BLOCKS.'\})';
}
@ -139,12 +139,20 @@ class JsonManipulator
}
// main node content not match-able
$nodeRegex = '#("'.$mainNode.'":\s*\{)('.self::$RECURSE_BLOCKS.')(\})#s';
if (!$this->pregMatch($nodeRegex, $this->contents, $match)) {
return false;
$nodeRegex = '{^(\s*\{\s*(?:'.self::$JSON_STRING.'\s*:\s*'.self::$JSON_VALUE.'\s*,\s*)*?)'.
'('.preg_quote(JsonFile::encode($mainNode)).'\s*:\s*\{)('.self::$RECURSE_BLOCKS.')(\})(.*)}s';
try {
if (!$this->pregMatch($nodeRegex, $this->contents, $match)) {
return false;
}
} catch (\RuntimeException $e) {
if ($e->getCode() === PREG_BACKTRACK_LIMIT_ERROR) {
return false;
}
throw $e;
}
$children = $match[2];
$children = $match[3];
// invalid match due to un-regexable content, abort
if (!@json_decode('{'.$children.'}')) {
@ -184,7 +192,7 @@ class JsonManipulator
$children = $this->newline . $this->indent . $this->indent . JsonFile::encode($name).': '.$this->format($value, 1) . $children;
}
$this->contents = preg_replace($nodeRegex, addcslashes('${1}'.$children.'$3', '\\'), $this->contents);
$this->contents = preg_replace($nodeRegex, addcslashes('${1}${2}'.$children.'${4}${5}', '\\'), $this->contents);
return true;
}
@ -199,15 +207,23 @@ class JsonManipulator
}
// no node content match-able
$nodeRegex = '#("'.$mainNode.'":\s*\{)('.self::$RECURSE_BLOCKS.')(\})#s';
if (!$this->pregMatch($nodeRegex, $this->contents, $match)) {
return false;
$nodeRegex = '{^(\s*\{\s*(?:'.self::$JSON_STRING.'\s*:\s*'.self::$JSON_VALUE.'\s*,\s*)*?)'.
'('.preg_quote(JsonFile::encode($mainNode)).'\s*:\s*\{)('.self::$RECURSE_BLOCKS.')(\})(.*)}s';
try {
if (!$this->pregMatch($nodeRegex, $this->contents, $match)) {
return false;
}
} catch (\RuntimeException $e) {
if ($e->getCode() === PREG_BACKTRACK_LIMIT_ERROR) {
return false;
}
throw $e;
}
$children = $match[2];
$children = $match[3];
// invalid match due to un-regexable content, abort
if (!@json_decode('{'.$children.'}')) {
if (!@json_decode('{'.$children.'}', true)) {
return false;
}
@ -245,7 +261,7 @@ class JsonManipulator
// no child data left, $name was the only key in
if (!trim($childrenClean)) {
$this->contents = preg_replace($nodeRegex, '$1'.$this->newline.$this->indent.'}', $this->contents);
$this->contents = preg_replace($nodeRegex, '$1$2'.$this->newline.$this->indent.'$4$5', $this->contents);
// we have a subname, so we restore the rest of $name
if ($subName !== null) {
@ -260,12 +276,12 @@ class JsonManipulator
$that = $this;
$this->contents = preg_replace_callback($nodeRegex, function ($matches) use ($that, $name, $subName, $childrenClean) {
if ($subName !== null) {
$curVal = json_decode('{'.$matches[2].'}', true);
$curVal = json_decode('{'.$matches[3].'}', true);
unset($curVal[$name][$subName]);
$childrenClean = substr($that->format($curVal, 0), 1, -1);
}
return $matches[1] . $childrenClean . $matches[3];
return $matches[1] . $matches[2] . $childrenClean . $matches[4] . $matches[5];
}, $this->contents);
return true;
@ -352,17 +368,17 @@ class JsonManipulator
if ($count === false) {
switch (preg_last_error()) {
case PREG_NO_ERROR:
throw new \RuntimeException('Failed to execute regex: PREG_NO_ERROR');
throw new \RuntimeException('Failed to execute regex: PREG_NO_ERROR', PREG_NO_ERROR);
case PREG_INTERNAL_ERROR:
throw new \RuntimeException('Failed to execute regex: PREG_INTERNAL_ERROR');
throw new \RuntimeException('Failed to execute regex: PREG_INTERNAL_ERROR', PREG_INTERNAL_ERROR);
case PREG_BACKTRACK_LIMIT_ERROR:
throw new \RuntimeException('Failed to execute regex: PREG_BACKTRACK_LIMIT_ERROR');
throw new \RuntimeException('Failed to execute regex: PREG_BACKTRACK_LIMIT_ERROR', PREG_BACKTRACK_LIMIT_ERROR);
case PREG_RECURSION_LIMIT_ERROR:
throw new \RuntimeException('Failed to execute regex: PREG_RECURSION_LIMIT_ERROR');
throw new \RuntimeException('Failed to execute regex: PREG_RECURSION_LIMIT_ERROR', PREG_RECURSION_LIMIT_ERROR);
case PREG_BAD_UTF8_ERROR:
throw new \RuntimeException('Failed to execute regex: PREG_BAD_UTF8_ERROR');
throw new \RuntimeException('Failed to execute regex: PREG_BAD_UTF8_ERROR', PREG_BAD_UTF8_ERROR);
case PREG_BAD_UTF8_OFFSET_ERROR:
throw new \RuntimeException('Failed to execute regex: PREG_BAD_UTF8_OFFSET_ERROR');
throw new \RuntimeException('Failed to execute regex: PREG_BAD_UTF8_OFFSET_ERROR', PREG_BAD_UTF8_OFFSET_ERROR);
default:
throw new \RuntimeException('Failed to execute regex: Unknown error');
}

80
tests/Composer/Test/Json/JsonManipulatorTest.php
View File

@ -576,18 +576,22 @@ class JsonManipulatorTest extends \PHPUnit_Framework_TestCase
),
'fails on deep arrays with borked texts' => array(
'{
"repositories": [{
"package": { "bar": "ba[z" }
}]
"repositories": [
{
"package": { "bar": "ba[z" }
}
]
}',
'bar',
false
),
'fails on deep arrays with borked texts2' => array(
'{
"repositories": [{
"package": { "bar": "ba]z" }
}]
"repositories": [
{
"package": { "bar": "ba]z" }
}
]
}',
'bar',
false
@ -603,6 +607,9 @@ class JsonManipulatorTest extends \PHPUnit_Framework_TestCase
"package": {
"require": {
"this/should-not-end-up-in-root-require": "~2.0"
},
"require-dev": {
"this/should-not-end-up-in-root-require-dev": "~2.0"
}
}
}
@ -611,16 +618,23 @@ class JsonManipulatorTest extends \PHPUnit_Framework_TestCase
"package/a": "*",
"package/b": "*",
"package/c": "*"
},
"require-dev": {
"package/d": "*"
}
}');
$this->assertTrue($manipulator->removeSubNode('require', 'package/c'));
$this->assertTrue($manipulator->removeSubNode('require-dev', 'package/d'));
$this->assertEquals('{
"repositories": [
{
"package": {
"require": {
"this/should-not-end-up-in-root-require": "~2.0"
},
"require-dev": {
"this/should-not-end-up-in-root-require-dev": "~2.0"
}
}
}
@ -628,6 +642,60 @@ class JsonManipulatorTest extends \PHPUnit_Framework_TestCase
"require": {
"package/a": "*",
"package/b": "*"
},
"require-dev": {
}
}
', $manipulator->getContents());
}
public function testAddSubNodeInRequire()
{
$manipulator = new JsonManipulator('{
"repositories": [
{
"package": {
"require": {
"this/should-not-end-up-in-root-require": "~2.0"
},
"require-dev": {
"this/should-not-end-up-in-root-require-dev": "~2.0"
}
}
}
],
"require": {
"package/a": "*",
"package/b": "*"
},
"require-dev": {
"package/d": "*"
}
}');
$this->assertTrue($manipulator->addSubNode('require', 'package/c', '*'));
$this->assertTrue($manipulator->addSubNode('require-dev', 'package/e', '*'));
$this->assertEquals('{
"repositories": [
{
"package": {
"require": {
"this/should-not-end-up-in-root-require": "~2.0"
},
"require-dev": {
"this/should-not-end-up-in-root-require-dev": "~2.0"
}
}
}
],
"require": {
"package/a": "*",
"package/b": "*",
"package/c": "*"
},
"require-dev": {
"package/d": "*",
"package/e": "*"
}
}
', $manipulator->getContents());