Merge pull request #73 from intrigus-lgtm/make-CWE-643-supported

Make cwe 643 supported
This commit is contained in:
Sauyon Lee
2020-04-01 17:45:45 -07:00
committed by GitHub
49 changed files with 1093 additions and 195 deletions

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@@ -19,6 +19,7 @@ The CodeQL library for Go now contains a folder of simple "cookbook" queries tha
| Incomplete URL scheme check (`go/incomplete-url-scheme-check`) | correctness, security, external/cwe/cwe-020 | Highlights checks for `javascript` URLs that do not take `data` or `vbscript` URLs into account. Results are shown on LGTM by default. |
| Potentially unsafe quoting (`go/unsafe-quoting`) | correctness, security, external/cwe/cwe-078, external/cwe/cwe-089, external/cwe/cwe-094 | Highlights code that constructs a quoted string literal containing data that may itself contain quotes. Results are shown on LGTM by default. |
| Size computation for allocation may overflow (`go/allocation-size-overflow`) | correctness, security, external/cwe/cwe-190 | Highlights code that computes the size of an allocation based on the size of a potentially large object. Results are shown on LGTM by default. |
| XPath injection (`go/xml/xpath-injection`) | security, external/cwe/cwe-643 | Highlights code that uses remote input in an XPath expression. Results are shown on LGTM by default. |
## Changes to existing queries

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@@ -13,20 +13,18 @@ func main() {}
func processRequest(r *http.Request, doc tree.Node) {
r.ParseForm()
username := r.Form.Get("username")
password := r.Form.Get("password")
// BAD: User input used directly in an XPath expression
xPath := goxpath.MustParse("//users/user[login/text()='" + username + "' and password/text() = '" + password + "']/home_dir/text()")
xPath := goxpath.MustParse("//users/user[login/text()='" + username + "']/home_dir/text()")
unsafeRes, _ := xPath.ExecBool(doc)
fmt.Println(unsafeRes)
// GOOD: Value of parameters is defined here instead of directly in the query
opt := func(o *goxpath.Opts) {
o.Vars["username"] = tree.String(username)
o.Vars["password"] = tree.String(password)
}
// GOOD: Uses parameters to avoid including user input directly in XPath expression
xPath = goxpath.MustParse("//users/user[login/text()=$username and password/text() = $password]/home_dir/text()")
xPath = goxpath.MustParse("//users/user[login/text()=$username]/home_dir/text()")
safeRes, _ := xPath.ExecBool(doc, opt)
fmt.Println(safeRes)
}

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@@ -15,16 +15,16 @@ If user input must be included in an XPath expression, pre-compile the query and
references to include the user input.
</p>
<p>
For example, when using the <code>github.com/ChrisTrenkamp/goxpath</code> API, this can be done by creating a function that takes an <code>*goxpath.Opts</code> structure.
For example, when using the <code>github.com/ChrisTrenkamp/goxpath</code> API, you can do this by creating a function that takes an <code>*goxpath.Opts</code> structure.
In this structure you can then set the values of the variable references.
This function can then be specified when calling <code>Exec()</code>, <code>Exec{Bool|Num|Node}()</code>, <code>ParseExec()</code> or <code>MustExec()</code>.
This function can then be specified when calling <code>Exec()</code>, <code>Exec{Bool|Num|Node}()</code>, <code>ParseExec()</code>, or <code>MustExec()</code>.
</p>
</recommendation>
<example>
<p>
In the first example, the code accepts a user name specified by the user, and uses this
In the first example, the code accepts a username specified by the user, and uses this
unvalidated and unsanitized value in an XPath expression. This is vulnerable to the user providing
special characters or string sequences that change the meaning of the XPath expression to search
for different values.

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@@ -0,0 +1,27 @@
/**
* @name XPath injection
* @description Building an XPath expression from user-controlled sources is vulnerable to insertion of
* malicious code by the user.
* @kind path-problem
* @problem.severity error
* @precision high
* @id go/xml/xpath-injection
* @tags security
* external/cwe/cwe-643
*/
import go
import semmle.go.security.XPathInjection::XPathInjection
import DataFlow::PathGraph
/** Holds if `node` is either a string or a byte slice */
predicate isStringOrByte(DataFlow::PathNode node) {
exists(Type t | t = node.getNode().getType().getUnderlyingType() |
t instanceof StringType or t instanceof ByteSliceType
)
}
from Configuration config, DataFlow::PathNode source, DataFlow::PathNode sink
where config.hasFlowPath(source, sink) and isStringOrByte(sink)
select sink.getNode(), source, sink, "$@ flows here and is used in an XPath expression.",
source.getNode(), "A user-provided value"

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@@ -1,188 +0,0 @@
/**
* @name XPath injection
* @description Building an XPath expression from user-controlled sources is vulnerable to insertion of
* malicious code by the user.
* @kind path-problem
* @problem.severity error
* @id go/xml/xpath-injection
* @tags security
* external/cwe/cwe-643
*/
import go
import DataFlow::PathGraph
class ByteSliceType extends SliceType {
ByteSliceType() { this.getElementType() instanceof Uint8Type }
}
class XPathInjectionConfiguration extends TaintTracking::Configuration {
XPathInjectionConfiguration() { this = "XPathInjectionConfiguration" }
override predicate isSource(DataFlow::Node source) { source instanceof UntrustedFlowSource }
override predicate isSink(DataFlow::Node sink) { sink instanceof XPathInjectionSink }
override predicate isSanitizer(DataFlow::Node node) {
exists(Type t | t = node.getType().getUnderlyingType() |
not t instanceof StringType or not t instanceof ByteSliceType
)
}
}
abstract class XPathInjectionSink extends DataFlow::Node { }
// https://github.com/antchfx/xpath
class XPathSink extends XPathInjectionSink {
XPathSink() {
exists(Function f, string name | name.matches("Compile%") |
f.hasQualifiedName("github.com/antchfx/xpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("MustCompile%") |
f.hasQualifiedName("github.com/antchfx/xpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("Select%") |
f.hasQualifiedName("github.com/antchfx/xpath", name) and
this = f.getACall().getArgument(1)
)
}
}
// https://github.com/antchfx/htmlquery
class HtmlQuerySink extends XPathInjectionSink {
HtmlQuerySink() {
exists(Function f, string name | name.matches("Find%") |
f.hasQualifiedName("github.com/antchfx/htmlquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f, string name | name.matches("Query%") |
f.hasQualifiedName("github.com/antchfx/htmlquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f |
f.hasQualifiedName("github.com/antchfx/htmlquery", "getQuery") and
this = f.getACall().getArgument(0)
)
}
}
// https://github.com/antchfx/xmlquery
class XmlQuerySink extends XPathInjectionSink {
XmlQuerySink() {
exists(Function f, string name | name.matches("Find%") |
f.hasQualifiedName("github.com/antchfx/xmlquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f, string name | name.matches("Query%") |
f.hasQualifiedName("github.com/antchfx/xmlquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f, string name | name.matches("Select%") |
f.hasQualifiedName("github.com/antchfx/xmlquery", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f |
f.hasQualifiedName("github.com/antchfx/xmlquery", "getQuery") and
this = f.getACall().getArgument(0)
)
}
}
// https://github.com/antchfx/jsonquery
class JsonQuerySink extends XPathInjectionSink {
JsonQuerySink() {
exists(Function f, string name | name.matches("Find%") |
f.hasQualifiedName("github.com/antchfx/jsonquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f, string name | name.matches("Query%") |
f.hasQualifiedName("github.com/antchfx/jsonquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f |
f.hasQualifiedName("github.com/antchfx/jsonquery", "getQuery") and
this = f.getACall().getArgument(0)
)
}
}
// https://github.com/go-xmlpath/xmlpath
class XmlPathSink extends XPathInjectionSink {
XmlPathSink() {
exists(Function f, string name | name.matches("Compile%") |
f.hasQualifiedName("github.com/go-xmlpath/xmlpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("MustCompile%") |
f.hasQualifiedName("github.com/go-xmlpath/xmlpath", name) and
this = f.getACall().getArgument(0)
)
}
}
// https://github.com/ChrisTrenkamp/goxpath
class GoXPathSink extends XPathInjectionSink {
GoXPathSink() {
exists(Function f, string name | name.matches("Parse%") |
f.hasQualifiedName("github.com/ChrisTrenkamp/goxpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("MustParse%") |
f.hasQualifiedName("github.com/ChrisTrenkamp/goxpath", name) and
this = f.getACall().getArgument(0)
)
}
}
// https://github.com/santhosh-tekuri/xpathparser
class XPathParserSink extends XPathInjectionSink {
XPathParserSink() {
exists(Function f, string name | name.matches("Parse%") |
f.hasQualifiedName("github.com/santhosh-tekuri/xpathparser", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("MustParse%") |
f.hasQualifiedName("github.com/santhosh-tekuri/xpathparser", name) and
this = f.getACall().getArgument(0)
)
}
}
// https://github.com/moovweb/gokogiri
class GokogiriSink extends XPathInjectionSink {
GokogiriSink() {
exists(Function f, string name | name.matches("Compile%") |
f.hasQualifiedName("github.com/moovweb/gokogiri/xpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("Search%") |
f.hasQualifiedName("github.com/moovweb/gokogiri/xml", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("EvalXPath%") |
f.hasQualifiedName("github.com/moovweb/gokogiri/xml", name) and
this = f.getACall().getArgument(0)
)
}
}
from DataFlow::PathNode source, DataFlow::PathNode sink, XPathInjectionConfiguration c
where c.hasFlowPath(source, sink)
select sink.getNode(), source, sink, "$@ flows here and is used in an XPath expression.",
source.getNode(), "A user-provided value"

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@@ -26,6 +26,7 @@ import semmle.go.dataflow.SSA
import semmle.go.frameworks.HTTP
import semmle.go.frameworks.SystemCommandExecutors
import semmle.go.frameworks.SQL
import semmle.go.frameworks.XPath
import semmle.go.frameworks.Stdlib
import semmle.go.security.FlowSources
import semmle.go.Util

View File

@@ -328,6 +328,11 @@ class SliceType extends @slicetype, CompositeType {
override string toString() { result = "slice type" }
}
/** A byte slice type */
class ByteSliceType extends SliceType {
ByteSliceType() { this.getElementType() instanceof Uint8Type }
}
/** A struct type. */
class StructType extends @structtype, CompositeType {
/**

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@@ -0,0 +1,153 @@
/**
* Provides classes for working with XPath-related concepts such as XPath expressions.
*/
import go
/** Provides classes for working with XPath-related APIs. */
module XPath {
/** Provides classes for working with XPath expression strings. */
module XPathExpressionString {
/**
* A data-flow node whose string value is interpreted as (part of) an XPath expression.
*
* Extend this class to model new APIs.
*/
abstract class Range extends DataFlow::Node { }
/** An XPath expression string used in an API function of the https://github.com/antchfx/xpath package. */
private class AntchfxXpathXPathExpressionString extends Range {
AntchfxXpathXPathExpressionString() {
exists(Function f, string name | name.matches("Compile%") |
f.hasQualifiedName("github.com/antchfx/xpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("MustCompile%") |
f.hasQualifiedName("github.com/antchfx/xpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("Select%") |
f.hasQualifiedName("github.com/antchfx/xpath", name) and
this = f.getACall().getArgument(1)
)
}
}
/** An XPath expression string used in an API function of the https://github.com/antchfx/htmlquery package. */
private class AntchfxHtmlqueryXPathExpressionString extends Range {
AntchfxHtmlqueryXPathExpressionString() {
exists(Function f, string name | name.matches("Find%") |
f.hasQualifiedName("github.com/antchfx/htmlquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f, string name | name.matches("Query%") |
f.hasQualifiedName("github.com/antchfx/htmlquery", name) and
this = f.getACall().getArgument(1)
)
}
}
/** An XPath expression string used in an API function of the https://github.com/antchfx/xmlquery package. */
private class AntchfxXmlqueryXPathExpressionString extends Range {
AntchfxXmlqueryXPathExpressionString() {
exists(Function f, string name | name.matches("Find%") |
f.hasQualifiedName("github.com/antchfx/xmlquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f, string name | name.matches("Query%") |
f.hasQualifiedName("github.com/antchfx/xmlquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Method m, string name | name.matches("Select%") |
m.hasQualifiedName("github.com/antchfx/xmlquery", "Node", name) and
this = m.getACall().getArgument(0)
)
}
}
/** An XPath expression string used in an API function of the https://github.com/antchfx/jsonquery package. */
private class AntchfxJsonqueryXPathExpressionString extends Range {
AntchfxJsonqueryXPathExpressionString() {
exists(Function f, string name | name.matches("Find%") |
f.hasQualifiedName("github.com/antchfx/jsonquery", name) and
this = f.getACall().getArgument(1)
)
or
exists(Function f, string name | name.matches("Query%") |
f.hasQualifiedName("github.com/antchfx/jsonquery", name) and
this = f.getACall().getArgument(1)
)
}
}
/** An XPath expression string used in an API function of the https://github.com/go-xmlpath/xmlpath package. */
private class GoXmlpathXmlpathXPathExpressionString extends Range {
GoXmlpathXmlpathXPathExpressionString() {
exists(Function f, string name | name.matches("Compile%") |
f.hasQualifiedName("github.com/go-xmlpath/xmlpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("MustCompile%") |
f.hasQualifiedName("github.com/go-xmlpath/xmlpath", name) and
this = f.getACall().getArgument(0)
)
}
}
/** An XPath expression string used in an API function of the https://github.com/ChrisTrenkamp/goxpath package. */
private class ChrisTrenkampGoxpathXPathExpressionString extends Range {
ChrisTrenkampGoxpathXPathExpressionString() {
exists(Function f, string name | name.matches("Parse%") |
f.hasQualifiedName("github.com/ChrisTrenkamp/goxpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("MustParse%") |
f.hasQualifiedName("github.com/ChrisTrenkamp/goxpath", name) and
this = f.getACall().getArgument(0)
)
}
}
/** An XPath expression string used in an API function of the https://github.com/santhosh-tekuri/xpathparser package. */
private class SanthoshTekuriXpathparserXPathExpressionString extends Range {
SanthoshTekuriXpathparserXPathExpressionString() {
exists(Function f, string name | name.matches("Parse%") |
f.hasQualifiedName("github.com/santhosh-tekuri/xpathparser", name) and
this = f.getACall().getArgument(0)
)
or
exists(Function f, string name | name.matches("MustParse%") |
f.hasQualifiedName("github.com/santhosh-tekuri/xpathparser", name) and
this = f.getACall().getArgument(0)
)
}
}
/** An XPath expression string used in an API function of the https://github.com/jbowtie/gokogiri package. */
private class JbowtieGokogiriXPathExpressionString extends Range {
JbowtieGokogiriXPathExpressionString() {
exists(Function f, string name | name.matches("Compile%") |
f.hasQualifiedName("github.com/jbowtie/gokogiri/xpath", name) and
this = f.getACall().getArgument(0)
)
or
exists(Method m, string name | name.matches("Search%") |
m.hasQualifiedName("github.com/jbowtie/gokogiri/xml", "Node", name) and
this = m.getACall().getArgument(0)
)
or
exists(Method m, string name | name.matches("EvalXPath%") |
m.hasQualifiedName("github.com/jbowtie/gokogiri/xml", "Node", name) and
this = m.getACall().getArgument(0)
)
}
}
}
}

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@@ -0,0 +1,35 @@
/**
* Provides a taint tracking configuration for reasoning about untrusted user input used in an XPath expression.
*
* Note: for performance reasons, only import this file if `XPathInjection::Configuration` is needed,
* otherwise `XPathInjectionCustomizations` should be imported instead.
*/
import go
/**
* Provides a taint tracking configuration for reasoning about untrusted user input used in an XPath expression.
*/
module XPathInjection {
import XPathInjectionCustomizations::XPathInjection
/**
* A taint-tracking configuration for reasoning about untrusted user input used in an XPath expression.
*/
class Configuration extends TaintTracking::Configuration {
Configuration() { this = "XPathInjection" }
override predicate isSource(DataFlow::Node source) { source instanceof Source }
override predicate isSink(DataFlow::Node sink) { sink instanceof Sink }
override predicate isSanitizer(DataFlow::Node node) {
super.isSanitizer(node) or
node instanceof Sanitizer
}
override predicate isSanitizerGuard(DataFlow::BarrierGuard guard) {
guard instanceof SanitizerGuard
}
}
}

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@@ -0,0 +1,41 @@
/**
* Provides default sources, sinks and sanitizers for reasoning about untrusted user input used in an XPath expression,
* as well as extension points for adding your own.
*/
import go
/**
* Provides extension points for reasoning about untrusted user input used in an XPath expression.
*/
module XPathInjection {
/**
* A data flow source for untrusted user input used in an XPath expression.
*/
abstract class Source extends DataFlow::Node { }
/**
* A data flow sink for untrusted user input used in an XPath expression.
*/
abstract class Sink extends DataFlow::ExprNode { }
/**
* A sanitizer for untrusted user input used in an XPath expression.
*/
abstract class Sanitizer extends DataFlow::ExprNode { }
/**
* A sanitizer guard for untrusted user input used in an XPath expression.
*/
abstract class SanitizerGuard extends DataFlow::BarrierGuard { }
/** A source of untrusted data, used in an XPath expression. */
class UntrustedFlowAsSource extends Source {
UntrustedFlowAsSource() { this instanceof UntrustedFlowSource }
}
/** An XPath expression string, considered as a taint sink for XPath injection. */
class XPathExpressionStringAsSink extends Sink {
XPathExpressionStringAsSink() { this instanceof XPath::XPathExpressionString::Range }
}
}

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@@ -0,0 +1,122 @@
edges
| XPathInjection.go:21:14:21:19 | selection of Form : Values | XPathInjection.go:24:23:24:85 | ...+... |
| XPathInjection.go:21:14:21:19 | selection of Form : Values | XPathInjection.go:27:24:27:86 | ...+... |
| XPathInjection.go:21:14:21:19 | selection of Form : Values | XPathInjection.go:30:24:30:82 | ...+... |
| XPathInjection.go:35:14:35:19 | selection of Form : Values | XPathInjection.go:38:26:38:84 | ...+... |
| XPathInjection.go:35:14:35:19 | selection of Form : Values | XPathInjection.go:41:29:41:87 | ...+... |
| XPathInjection.go:35:14:35:19 | selection of Form : Values | XPathInjection.go:44:33:44:91 | ...+... |
| XPathInjection.go:35:14:35:19 | selection of Form : Values | XPathInjection.go:47:30:47:88 | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:55:25:55:83 | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:58:28:58:86 | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:61:25:61:83 | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:64:34:64:92 | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:67:32:67:90 | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:70:29:70:87 | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:73:23:73:85 | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:76:22:76:84 | ...+... |
| XPathInjection.go:81:14:81:19 | selection of Form : Values | XPathInjection.go:84:26:84:84 | ...+... |
| XPathInjection.go:81:14:81:19 | selection of Form : Values | XPathInjection.go:87:29:87:87 | ...+... |
| XPathInjection.go:81:14:81:19 | selection of Form : Values | XPathInjection.go:90:33:90:91 | ...+... |
| XPathInjection.go:81:14:81:19 | selection of Form : Values | XPathInjection.go:93:30:93:88 | ...+... |
| XPathInjection.go:98:14:98:19 | selection of Form : Values | XPathInjection.go:101:25:101:87 | ...+... |
| XPathInjection.go:98:14:98:19 | selection of Form : Values | XPathInjection.go:104:26:104:88 | ...+... |
| XPathInjection.go:109:14:109:19 | selection of Form : Values | XPathInjection.go:113:23:113:126 | ...+... |
| XPathInjection.go:109:14:109:19 | selection of Form : Values | XPathInjection.go:116:24:116:127 | ...+... |
| XPathInjection.go:109:14:109:19 | selection of Form : Values | XPathInjection.go:119:27:119:122 | ...+... |
| XPathInjection.go:110:14:110:19 | selection of Form : Values | XPathInjection.go:113:23:113:126 | ...+... |
| XPathInjection.go:110:14:110:19 | selection of Form : Values | XPathInjection.go:116:24:116:127 | ...+... |
| XPathInjection.go:110:14:110:19 | selection of Form : Values | XPathInjection.go:119:27:119:122 | ...+... |
| XPathInjection.go:127:14:127:19 | selection of Form : Values | XPathInjection.go:130:27:130:89 | ...+... |
| XPathInjection.go:127:14:127:19 | selection of Form : Values | XPathInjection.go:133:28:133:90 | ...+... |
| XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:142:33:142:136 | ...+... |
| XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:145:18:145:121 | ...+... |
| XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:151:31:151:126 | ...+... |
| XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:160:21:160:116 | ...+... |
| XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:169:27:169:122 | ...+... |
| XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:142:33:142:136 | ...+... |
| XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:145:18:145:121 | ...+... |
| XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:151:31:151:126 | ...+... |
| XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:160:21:160:116 | ...+... |
| XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:169:27:169:122 | ...+... |
nodes
| XPathInjection.go:21:14:21:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:24:23:24:85 | ...+... | semmle.label | ...+... |
| XPathInjection.go:27:24:27:86 | ...+... | semmle.label | ...+... |
| XPathInjection.go:30:24:30:82 | ...+... | semmle.label | ...+... |
| XPathInjection.go:35:14:35:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:38:26:38:84 | ...+... | semmle.label | ...+... |
| XPathInjection.go:41:29:41:87 | ...+... | semmle.label | ...+... |
| XPathInjection.go:44:33:44:91 | ...+... | semmle.label | ...+... |
| XPathInjection.go:47:30:47:88 | ...+... | semmle.label | ...+... |
| XPathInjection.go:52:14:52:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:55:25:55:83 | ...+... | semmle.label | ...+... |
| XPathInjection.go:58:28:58:86 | ...+... | semmle.label | ...+... |
| XPathInjection.go:61:25:61:83 | ...+... | semmle.label | ...+... |
| XPathInjection.go:64:34:64:92 | ...+... | semmle.label | ...+... |
| XPathInjection.go:67:32:67:90 | ...+... | semmle.label | ...+... |
| XPathInjection.go:70:29:70:87 | ...+... | semmle.label | ...+... |
| XPathInjection.go:73:23:73:85 | ...+... | semmle.label | ...+... |
| XPathInjection.go:76:22:76:84 | ...+... | semmle.label | ...+... |
| XPathInjection.go:81:14:81:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:84:26:84:84 | ...+... | semmle.label | ...+... |
| XPathInjection.go:87:29:87:87 | ...+... | semmle.label | ...+... |
| XPathInjection.go:90:33:90:91 | ...+... | semmle.label | ...+... |
| XPathInjection.go:93:30:93:88 | ...+... | semmle.label | ...+... |
| XPathInjection.go:98:14:98:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:101:25:101:87 | ...+... | semmle.label | ...+... |
| XPathInjection.go:104:26:104:88 | ...+... | semmle.label | ...+... |
| XPathInjection.go:109:14:109:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:110:14:110:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:113:23:113:126 | ...+... | semmle.label | ...+... |
| XPathInjection.go:116:24:116:127 | ...+... | semmle.label | ...+... |
| XPathInjection.go:119:27:119:122 | ...+... | semmle.label | ...+... |
| XPathInjection.go:127:14:127:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:130:27:130:89 | ...+... | semmle.label | ...+... |
| XPathInjection.go:133:28:133:90 | ...+... | semmle.label | ...+... |
| XPathInjection.go:138:14:138:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:139:14:139:19 | selection of Form : Values | semmle.label | selection of Form : Values |
| XPathInjection.go:142:33:142:136 | ...+... | semmle.label | ...+... |
| XPathInjection.go:145:18:145:121 | ...+... | semmle.label | ...+... |
| XPathInjection.go:151:31:151:126 | ...+... | semmle.label | ...+... |
| XPathInjection.go:160:21:160:116 | ...+... | semmle.label | ...+... |
| XPathInjection.go:169:27:169:122 | ...+... | semmle.label | ...+... |
#select
| XPathInjection.go:24:23:24:85 | ...+... | XPathInjection.go:21:14:21:19 | selection of Form : Values | XPathInjection.go:24:23:24:85 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:21:14:21:19 | selection of Form | A user-provided value |
| XPathInjection.go:27:24:27:86 | ...+... | XPathInjection.go:21:14:21:19 | selection of Form : Values | XPathInjection.go:27:24:27:86 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:21:14:21:19 | selection of Form | A user-provided value |
| XPathInjection.go:30:24:30:82 | ...+... | XPathInjection.go:21:14:21:19 | selection of Form : Values | XPathInjection.go:30:24:30:82 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:21:14:21:19 | selection of Form | A user-provided value |
| XPathInjection.go:38:26:38:84 | ...+... | XPathInjection.go:35:14:35:19 | selection of Form : Values | XPathInjection.go:38:26:38:84 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:35:14:35:19 | selection of Form | A user-provided value |
| XPathInjection.go:41:29:41:87 | ...+... | XPathInjection.go:35:14:35:19 | selection of Form : Values | XPathInjection.go:41:29:41:87 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:35:14:35:19 | selection of Form | A user-provided value |
| XPathInjection.go:44:33:44:91 | ...+... | XPathInjection.go:35:14:35:19 | selection of Form : Values | XPathInjection.go:44:33:44:91 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:35:14:35:19 | selection of Form | A user-provided value |
| XPathInjection.go:47:30:47:88 | ...+... | XPathInjection.go:35:14:35:19 | selection of Form : Values | XPathInjection.go:47:30:47:88 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:35:14:35:19 | selection of Form | A user-provided value |
| XPathInjection.go:55:25:55:83 | ...+... | XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:55:25:55:83 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:52:14:52:19 | selection of Form | A user-provided value |
| XPathInjection.go:58:28:58:86 | ...+... | XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:58:28:58:86 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:52:14:52:19 | selection of Form | A user-provided value |
| XPathInjection.go:61:25:61:83 | ...+... | XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:61:25:61:83 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:52:14:52:19 | selection of Form | A user-provided value |
| XPathInjection.go:64:34:64:92 | ...+... | XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:64:34:64:92 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:52:14:52:19 | selection of Form | A user-provided value |
| XPathInjection.go:67:32:67:90 | ...+... | XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:67:32:67:90 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:52:14:52:19 | selection of Form | A user-provided value |
| XPathInjection.go:70:29:70:87 | ...+... | XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:70:29:70:87 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:52:14:52:19 | selection of Form | A user-provided value |
| XPathInjection.go:73:23:73:85 | ...+... | XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:73:23:73:85 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:52:14:52:19 | selection of Form | A user-provided value |
| XPathInjection.go:76:22:76:84 | ...+... | XPathInjection.go:52:14:52:19 | selection of Form : Values | XPathInjection.go:76:22:76:84 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:52:14:52:19 | selection of Form | A user-provided value |
| XPathInjection.go:84:26:84:84 | ...+... | XPathInjection.go:81:14:81:19 | selection of Form : Values | XPathInjection.go:84:26:84:84 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:81:14:81:19 | selection of Form | A user-provided value |
| XPathInjection.go:87:29:87:87 | ...+... | XPathInjection.go:81:14:81:19 | selection of Form : Values | XPathInjection.go:87:29:87:87 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:81:14:81:19 | selection of Form | A user-provided value |
| XPathInjection.go:90:33:90:91 | ...+... | XPathInjection.go:81:14:81:19 | selection of Form : Values | XPathInjection.go:90:33:90:91 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:81:14:81:19 | selection of Form | A user-provided value |
| XPathInjection.go:93:30:93:88 | ...+... | XPathInjection.go:81:14:81:19 | selection of Form : Values | XPathInjection.go:93:30:93:88 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:81:14:81:19 | selection of Form | A user-provided value |
| XPathInjection.go:101:25:101:87 | ...+... | XPathInjection.go:98:14:98:19 | selection of Form : Values | XPathInjection.go:101:25:101:87 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:98:14:98:19 | selection of Form | A user-provided value |
| XPathInjection.go:104:26:104:88 | ...+... | XPathInjection.go:98:14:98:19 | selection of Form : Values | XPathInjection.go:104:26:104:88 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:98:14:98:19 | selection of Form | A user-provided value |
| XPathInjection.go:113:23:113:126 | ...+... | XPathInjection.go:109:14:109:19 | selection of Form : Values | XPathInjection.go:113:23:113:126 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:109:14:109:19 | selection of Form | A user-provided value |
| XPathInjection.go:113:23:113:126 | ...+... | XPathInjection.go:110:14:110:19 | selection of Form : Values | XPathInjection.go:113:23:113:126 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:110:14:110:19 | selection of Form | A user-provided value |
| XPathInjection.go:116:24:116:127 | ...+... | XPathInjection.go:109:14:109:19 | selection of Form : Values | XPathInjection.go:116:24:116:127 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:109:14:109:19 | selection of Form | A user-provided value |
| XPathInjection.go:116:24:116:127 | ...+... | XPathInjection.go:110:14:110:19 | selection of Form : Values | XPathInjection.go:116:24:116:127 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:110:14:110:19 | selection of Form | A user-provided value |
| XPathInjection.go:119:27:119:122 | ...+... | XPathInjection.go:109:14:109:19 | selection of Form : Values | XPathInjection.go:119:27:119:122 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:109:14:109:19 | selection of Form | A user-provided value |
| XPathInjection.go:119:27:119:122 | ...+... | XPathInjection.go:110:14:110:19 | selection of Form : Values | XPathInjection.go:119:27:119:122 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:110:14:110:19 | selection of Form | A user-provided value |
| XPathInjection.go:130:27:130:89 | ...+... | XPathInjection.go:127:14:127:19 | selection of Form : Values | XPathInjection.go:130:27:130:89 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:127:14:127:19 | selection of Form | A user-provided value |
| XPathInjection.go:133:28:133:90 | ...+... | XPathInjection.go:127:14:127:19 | selection of Form : Values | XPathInjection.go:133:28:133:90 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:127:14:127:19 | selection of Form | A user-provided value |
| XPathInjection.go:142:33:142:136 | ...+... | XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:142:33:142:136 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:138:14:138:19 | selection of Form | A user-provided value |
| XPathInjection.go:142:33:142:136 | ...+... | XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:142:33:142:136 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:139:14:139:19 | selection of Form | A user-provided value |
| XPathInjection.go:145:18:145:121 | ...+... | XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:145:18:145:121 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:138:14:138:19 | selection of Form | A user-provided value |
| XPathInjection.go:145:18:145:121 | ...+... | XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:145:18:145:121 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:139:14:139:19 | selection of Form | A user-provided value |
| XPathInjection.go:151:31:151:126 | ...+... | XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:151:31:151:126 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:138:14:138:19 | selection of Form | A user-provided value |
| XPathInjection.go:151:31:151:126 | ...+... | XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:151:31:151:126 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:139:14:139:19 | selection of Form | A user-provided value |
| XPathInjection.go:160:21:160:116 | ...+... | XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:160:21:160:116 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:138:14:138:19 | selection of Form | A user-provided value |
| XPathInjection.go:160:21:160:116 | ...+... | XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:160:21:160:116 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:139:14:139:19 | selection of Form | A user-provided value |
| XPathInjection.go:169:27:169:122 | ...+... | XPathInjection.go:138:14:138:19 | selection of Form : Values | XPathInjection.go:169:27:169:122 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:138:14:138:19 | selection of Form | A user-provided value |
| XPathInjection.go:169:27:169:122 | ...+... | XPathInjection.go:139:14:139:19 | selection of Form : Values | XPathInjection.go:169:27:169:122 | ...+... | $@ flows here and is used in an XPath expression. | XPathInjection.go:139:14:139:19 | selection of Form | A user-provided value |

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package main
import (
"net/http"
"github.com/ChrisTrenkamp/goxpath"
"github.com/antchfx/htmlquery"
"github.com/antchfx/jsonquery"
"github.com/antchfx/xmlquery"
"github.com/antchfx/xpath"
"github.com/go-xmlpath/xmlpath"
gokogiriXml "github.com/jbowtie/gokogiri/xml"
gokogiriXpath "github.com/jbowtie/gokogiri/xpath"
"github.com/santhosh-tekuri/xpathparser"
)
func main() {}
func testAntchfxXpath(r *http.Request) {
r.ParseForm()
username := r.Form.Get("username")
// BAD: User input used directly in an XPath expression
_, _ = xpath.Compile("//users/user[login/text()='" + username + "']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = xpath.MustCompile("//users/user[login/text()='" + username + "']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = xpath.Select(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
}
func testAntchfxHtmlquery(r *http.Request) {
r.ParseForm()
username := r.Form.Get("username")
// BAD: User input used directly in an XPath expression
_ = htmlquery.Find(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = htmlquery.FindOne(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_, _ = htmlquery.QueryAll(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_, _ = htmlquery.Query(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
}
func testAntchfxXmlquery(r *http.Request, n *xmlquery.Node) {
r.ParseForm()
username := r.Form.Get("username")
// BAD: User input used directly in an XPath expression
_ = xmlquery.Find(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = xmlquery.FindOne(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
xmlquery.FindEach(nil, "//users/user[login/text()='"+username+"']/home_dir/text()", nil)
// BAD: User input used directly in an XPath expression
xmlquery.FindEachWithBreak(nil, "//users/user[login/text()='"+username+"']/home_dir/text()", nil)
// BAD: User input used directly in an XPath expression
_, _ = xmlquery.QueryAll(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_, _ = xmlquery.Query(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = n.SelectElements("//users/user[login/text()='" + username + "']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = n.SelectElement("//users/user[login/text()='" + username + "']/home_dir/text()")
}
func testAntchfxJsonquery(r *http.Request) {
r.ParseForm()
username := r.Form.Get("username")
// BAD: User input used directly in an XPath expression
_ = jsonquery.Find(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = jsonquery.FindOne(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_, _ = jsonquery.QueryAll(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_, _ = jsonquery.Query(nil, "//users/user[login/text()='"+username+"']/home_dir/text()")
}
func testGoXmlpathXmlpath(r *http.Request) {
r.ParseForm()
username := r.Form.Get("username")
// BAD: User input used directly in an XPath expression
_, _ = xmlpath.Compile("//users/user[login/text()='" + username + "']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = xmlpath.MustCompile("//users/user[login/text()='" + username + "']/home_dir/text()")
}
func testChrisTrenkampGoxpath(r *http.Request) {
r.ParseForm()
username := r.Form.Get("username")
password := r.Form.Get("password")
// BAD: User input used directly in an XPath expression
_, _ = goxpath.Parse("//users/user[login/text()='" + username + "' and password/text() = '" + password + "']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = goxpath.MustParse("//users/user[login/text()='" + username + "' and password/text() = '" + password + "']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_, _ = goxpath.ParseExec("//users/user[login/text()='"+username+"' and password/text() = '"+password+"']/home_dir/text()", nil)
// GOOD: Uses parameters to avoid including user input directly in XPath expression
_ = goxpath.MustParse("//users/user[login/text()=$username and password/text() = $password]/home_dir/text()")
}
func testSanthoshTekuriXpathparser(r *http.Request) {
r.ParseForm()
username := r.Form.Get("username")
// BAD: User input used directly in an XPath expression
_, _ = xpathparser.Parse("//users/user[login/text()='" + username + "']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_ = xpathparser.MustParse("//users/user[login/text()='" + username + "']/home_dir/text()")
}
func testJbowtieGokogiri(r *http.Request, n gokogiriXml.Node) {
r.ParseForm()
username := r.Form.Get("username")
password := r.Form.Get("password")
// BAD: User input used directly in an XPath expression
xpath := gokogiriXpath.Compile("//users/user[login/text()='" + username + "' and password/text() = '" + password + "']/home_dir/text()")
// BAD: User input used directly in an XPath expression
_, _ = n.Search("//users/user[login/text()='" + username + "' and password/text() = '" + password + "']/home_dir/text()")
// OK: This is not flagged, since the creation of `xpath` is already flagged.
_, _ = n.Search(xpath)
// BAD: User input used directly in an XPath expression
_, _ = n.SearchWithVariables("//users/user[login/text()='"+username+"' and password/text() = '"+password+"']/home_dir/text()", nil)
// GOOD: Uses parameters to avoid including user input directly in XPath expression
_, _ = n.SearchWithVariables("//users/user[login/text()=$username and password/text() = $password]/home_dir/text()", nil)
// OK: This is not flagged, since the creation of `xpath` is already flagged.
_, _ = n.SearchWithVariables(xpath, nil)
// BAD: User input used directly in an XPath expression
_, _ = n.EvalXPath("//users/user[login/text()='"+username+"' and password/text() = '"+password+"']/home_dir/text()", nil)
// GOOD: Uses parameters to avoid including user input directly in XPath expression
_, _ = n.EvalXPath("//users/user[login/text()=$username and password/text() = $password]/home_dir/text()", nil)
// OK: This is not flagged, since the creation of `xpath` is already flagged.
_, _ = n.EvalXPath(xpath, nil)
// BAD: User input used directly in an XPath expression
_ = n.EvalXPathAsBoolean("//users/user[login/text()='"+username+"' and password/text() = '"+password+"']/home_dir/text()", nil)
// GOOD: Uses parameters to avoid including user input directly in XPath expression
_ = n.EvalXPathAsBoolean("//users/user[login/text()=$username and password/text() = $password]/home_dir/text()", nil)
// OK: This is not flagged, since the creation of `xpath` is already flagged.
_ = n.EvalXPathAsBoolean(xpath, nil)
}

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Security/CWE-643/XPathInjection.ql

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@@ -0,0 +1,16 @@
module main
go 1.13
require (
github.com/ChrisTrenkamp/goxpath v0.0.0-20190607011252-c5096ec8773d
github.com/antchfx/htmlquery v1.2.2
github.com/antchfx/jsonquery v1.1.2
github.com/antchfx/xmlquery v1.2.3
github.com/antchfx/xpath v1.1.4
github.com/go-xmlpath/xmlpath v0.0.0-20150820204837-860cbeca3ebc
github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e
github.com/jbowtie/gokogiri v0.0.0-20190301021639-37f655d3078f
github.com/santhosh-tekuri/xpathparser v1.0.0
golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e
)

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@@ -0,0 +1,22 @@
The MIT License (MIT)
Copyright (c) 2015 ChrisTrenkamp
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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This is a simple stub for https://github.com/ChrisTrenkamp/goxpath, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package goxpath
type Opts struct{}
type FuncOpts func(*Opts)
type XPathExec struct{}
func Parse(xp string) (XPathExec, error)
func MustParse(xp string) XPathExec
func ParseExec(xpstr string, t tree.Node, opts ...FuncOpts) (tree.Result, error)

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Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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This is a simple stub for https://github.com/antchfx/htmlquery, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package htmlquery
func Find(top *html.Node, expr string) []*html.Node
func FindOne(top *html.Node, expr string) *html.Node
func QueryAll(top *html.Node, expr string) ([]*html.Node, error)
func Query(top *html.Node, expr string) (*html.Node, error)

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Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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@@ -0,0 +1,3 @@
This is a simple stub for https://github.com/antchfx/jsonquery, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package jsonquery
type Node struct{}

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package jsonquery
func Find(top *Node, expr string) []*Node
func FindOne(top *Node, expr string) *Node
func QueryAll(top *Node, expr string) ([]*Node, error)
func Query(top *Node, expr string) (*Node, error)

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Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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@@ -0,0 +1,3 @@
This is a simple stub for https://github.com/antchfx/xmlquery, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package xmlquery
type Node struct {
}

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package xmlquery
func (n *Node) SelectElements(name string) []*Node
func (n *Node) SelectElement(name string) *Node
func Find(top *Node, expr string) []*Node
func FindOne(top *Node, expr string) *Node
func QueryAll(top *Node, expr string) ([]*Node, error)
func Query(top *Node, expr string) (*Node, error)
func FindEach(top *Node, expr string, cb func(int, *Node))
func FindEachWithBreak(top *Node, expr string, cb func(int, *Node) bool)

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Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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This is a simple stub for https://github.com/antchfx/xpath, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package xpath
type NodeNavigator interface {
}
type NodeIterator struct {
}
func Select(root NodeNavigator, expr string) *NodeIterator
type Expr struct {
}
func Compile(expr string) (*Expr, error)
func MustCompile(expr string) *Expr

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Copyright (c) 2013-2014 Canonical Inc.
This software is licensed under the LGPLv3, included below.
As a special exception to the GNU Lesser General Public License version 3
("LGPL3"), the copyright holders of this Library give you permission to
convey to a third party a Combined Work that links statically or dynamically
to this Library without providing any Minimal Corresponding Source or
Minimal Application Code as set out in 4d or providing the installation
information set out in section 4e, provided that you comply with the other
provisions of LGPL3 and provided that you meet, for the Application the
terms and conditions of the license(s) which apply to the Application.
Except as stated in this special exception, the provisions of LGPL3 will
continue to comply in full to this Library. If you modify this Library, you
may apply this exception to your version of this Library, but you are not
obliged to do so. If you do not wish to do so, delete this exception
statement from your version. This exception does not (and cannot) modify any
license terms which apply to the Application, with which you must still
comply.
GNU LESSER GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies
of this license document, but changing it is not allowed.
This version of the GNU Lesser General Public License incorporates
the terms and conditions of version 3 of the GNU General Public
License, supplemented by the additional permissions listed below.
0. Additional Definitions.
As used herein, "this License" refers to version 3 of the GNU Lesser
General Public License, and the "GNU GPL" refers to version 3 of the GNU
General Public License.
"The Library" refers to a covered work governed by this License,
other than an Application or a Combined Work as defined below.
An "Application" is any work that makes use of an interface provided
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Defining a subclass of a class defined by the Library is deemed a mode
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A "Combined Work" is a work produced by combining or linking an
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Version".
The "Minimal Corresponding Source" for a Combined Work means the
Corresponding Source for the Combined Work, excluding any source code
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The "Corresponding Application Code" for a Combined Work means the
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and utility programs needed for reproducing the Combined Work from the
Application, but excluding the System Libraries of the Combined Work.
1. Exception to Section 3 of the GNU GPL.
You may convey a covered work under sections 3 and 4 of this License
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2. Conveying Modified Versions.
If you modify a copy of the Library, and, in your modifications, a
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b) under the GNU GPL, with none of the additional permissions of
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3. Object Code Incorporating Material from Library Header Files.
The object code form of an Application may incorporate material from
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5. Combined Libraries.
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conveyed under the terms of this License.
b) Give prominent notice with the combined library that part of it
is a work based on the Library, and explaining where to find the
accompanying uncombined form of the same work.
6. Revised Versions of the GNU Lesser General Public License.
The Free Software Foundation may publish revised and/or new versions
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Each version is given a distinguishing version number. If the
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Library.

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This is a simple stub for https://github.com/go-xmlpath/xmlpath, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package xmlpath
type Path struct {
}
func MustCompile(path string) *Path
func Compile(path string) (*Path, error)

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Copyright (c) 2011-2012 Zhigang Chen and Hampton Catlin
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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This is a simple stub for https://github.com/jbowtie/gokogiri, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package xml
type Node interface {
Search(interface{}) ([]Node, error)
SearchWithVariables(interface{}, xpath.VariableScope) ([]Node, error)
EvalXPath(interface{}, xpath.VariableScope) (interface{}, error)
EvalXPathAsBoolean(interface{}, xpath.VariableScope) bool
}

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package xpath
type Expression struct {
}
func Compile(path string) (expr *Expression)

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package xpath
type VariableScope interface{}

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Copyright (c) 2017 Santhosh Kumar Tekuri. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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This is a simple stub for https://github.com/santhosh-tekuri/xpathparser, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package xpathparser
type Expr interface{}
func MustParse(xpath string) Expr
func Parse(xpath string) (expr Expr, err error)

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# This source code refers to The Go Authors for copyright purposes.
# The master list of authors is in the main Go distribution,
# visible at http://tip.golang.org/AUTHORS.

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@@ -0,0 +1,3 @@
# This source code was written by the Go contributors.
# The master list of contributors is in the main Go distribution,
# visible at http://tip.golang.org/CONTRIBUTORS.

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@@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

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@@ -0,0 +1,22 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

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This is a simple stub for https://golang.org/x/net, strictly for use in query testing.
See the LICENSE file in this folder for information about the licensing of the original library.

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package html
type Node struct {
}

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# github.com/ChrisTrenkamp/goxpath v0.0.0-20190607011252-c5096ec8773d
## explicit
github.com/ChrisTrenkamp/goxpath
# github.com/antchfx/htmlquery v1.2.2
## explicit
github.com/antchfx/htmlquery
# github.com/antchfx/jsonquery v1.1.2
## explicit
github.com/antchfx/jsonquery
# github.com/antchfx/xmlquery v1.2.3
## explicit
github.com/antchfx/xmlquery
# github.com/antchfx/xpath v1.1.4
## explicit
github.com/antchfx/xpath
# github.com/go-xmlpath/xmlpath v0.0.0-20150820204837-860cbeca3ebc
## explicit
github.com/go-xmlpath/xmlpath
# github.com/jbowtie/gokogiri v0.0.0-20190301021639-37f655d3078f
## explicit
github.com/jbowtie/gokogiri/xml
github.com/jbowtie/gokogiri/xpath
# github.com/santhosh-tekuri/xpathparser v1.0.0
## explicit
github.com/santhosh-tekuri/xpathparser
# golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e
## explicit
golang.org/x/net/html