mirror of
https://github.com/github/codeql.git
synced 2026-01-29 14:23:03 +01:00
Refactor HTTP module
This makes it easier to identify related classes and support future expansion.
This commit is contained in:
Jason Rogers
@@ -19,6 +19,7 @@ import semmle.go.Stmt
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import semmle.go.StringOps
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import semmle.go.Types
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import semmle.go.Util
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import semmle.go.concepts.HTTP
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import semmle.go.controlflow.BasicBlocks
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import semmle.go.controlflow.ControlFlowGraph
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import semmle.go.controlflow.IR
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@@ -35,9 +36,9 @@ import semmle.go.frameworks.Encoding
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import semmle.go.frameworks.EvanphxJsonPatch
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import semmle.go.frameworks.Gin
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import semmle.go.frameworks.Glog
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import semmle.go.frameworks.GoRestfulHttp
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import semmle.go.frameworks.K8sIoApimachineryPkgRuntime
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import semmle.go.frameworks.Logrus
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import semmle.go.frameworks.HTTP
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import semmle.go.frameworks.Macaron
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import semmle.go.frameworks.Mux
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import semmle.go.frameworks.NoSQL
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@@ -355,294 +355,6 @@ module RegexpReplaceFunction {
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}
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}
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/** Provides classes for modeling HTTP-related APIs. */
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module HTTP {
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/** Provides a class for modeling new HTTP response-writer APIs. */
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module ResponseWriter {
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/**
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* A variable that is an HTTP response writer.
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*
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* Extend this class to model new APIs. If you want to refine existing API models,
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* extend `HTTP::ResponseWriter` instead.
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*/
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abstract class Range extends Variable {
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/**
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* Gets a data-flow node that is a use of this response writer.
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*
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* Note that `PostUpdateNode`s for nodes that this predicate gets do not need to be
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* included, as they are handled by the concrete `ResponseWriter`'s `getANode`.
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*/
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abstract DataFlow::Node getANode();
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}
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}
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/**
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* A variable that is an HTTP response writer.
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*
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* Extend this class to refine existing API models. If you want to model new APIs,
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* extend `HTTP::ResponseWriter::Range` instead.
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*/
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class ResponseWriter extends Variable {
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ResponseWriter::Range self;
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ResponseWriter() { this = self }
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/** Gets the body that is written in this HTTP response. */
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ResponseBody getBody() { result.getResponseWriter() = this }
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/** Gets a header write that is written in this HTTP response. */
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HeaderWrite getAHeaderWrite() { result.getResponseWriter() = this }
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/** Gets a redirect that is sent in this HTTP response. */
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Redirect getARedirect() { result.getResponseWriter() = this }
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/** Gets a data-flow node that is a use of this response writer. */
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DataFlow::Node getANode() {
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result = self.getANode() or
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result.(DataFlow::PostUpdateNode).getPreUpdateNode() = self.getANode()
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}
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}
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/** Provides a class for modeling new HTTP header-write APIs. */
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module HeaderWrite {
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/**
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* A data-flow node that represents a write to an HTTP header.
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*
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* Extend this class to model new APIs. If you want to refine existing API models,
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* extend `HTTP::HeaderWrite` instead.
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*/
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abstract class Range extends DataFlow::ExprNode {
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/** Gets the (lower-case) name of a header set by this definition. */
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string getHeaderName() { result = this.getName().getStringValue().toLowerCase() }
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/** Holds if this header write defines the header `header`. */
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predicate definesHeader(string header, string value) {
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header = this.getName().getStringValue().toLowerCase() and
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value = this.getValue().getStringValue()
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}
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/** Gets the node representing the name of the header defined by this write. */
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abstract DataFlow::Node getName();
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/** Gets the node representing the value of the header defined by this write. */
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abstract DataFlow::Node getValue();
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/** Gets the response writer associated with this header write, if any. */
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abstract ResponseWriter getResponseWriter();
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}
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}
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/**
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* A data-flow node that represents a write to an HTTP header.
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*
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* Extend this class to refine existing API models. If you want to model new APIs,
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* extend `HTTP::HeaderWrite::Range` instead.
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*/
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class HeaderWrite extends DataFlow::ExprNode {
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HeaderWrite::Range self;
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HeaderWrite() { this = self }
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/** Gets the (lower-case) name of a header set by this definition. */
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string getHeaderName() { result = self.getHeaderName() }
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/** Holds if this header write defines the header `header`. */
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predicate definesHeader(string header, string value) { self.definesHeader(header, value) }
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/** Gets the node representing the name of the header defined by this write. */
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DataFlow::Node getName() { result = self.getName() }
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/** Gets the node representing the value of the header defined by this write. */
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DataFlow::Node getValue() { result = self.getValue() }
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/** Gets the response writer associated with this header write, if any. */
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ResponseWriter getResponseWriter() { result = self.getResponseWriter() }
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}
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/** A data-flow node whose value is written to an HTTP header. */
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class Header extends DataFlow::Node {
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HeaderWrite hw;
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Header() {
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this = hw.getName()
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or
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this = hw.getValue()
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}
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/** Gets the response writer associated with this header write, if any. */
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ResponseWriter getResponseWriter() { result = hw.getResponseWriter() }
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}
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/** A data-flow node whose value is written to the value of an HTTP header. */
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class HeaderValue extends Header {
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HeaderValue() { this = hw.getValue() }
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}
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/** A data-flow node whose value is written to the name of an HTTP header. */
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class HeaderName extends Header {
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HeaderName() { this = hw.getName() }
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}
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/** Provides a class for modeling new HTTP request-body APIs. */
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module RequestBody {
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/**
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* An expression representing a reader whose content is written to an HTTP request body.
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*
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* Extend this class to model new APIs. If you want to refine existing API models,
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* extend `HTTP::RequestBody` instead.
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*/
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abstract class Range extends DataFlow::Node { }
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}
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/**
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* An expression representing a reader whose content is written to an HTTP request body.
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*
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* Extend this class to refine existing API models. If you want to model new APIs,
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* extend `HTTP::RequestBody::Range` instead.
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*/
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class RequestBody extends DataFlow::Node {
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RequestBody::Range self;
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RequestBody() { this = self }
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}
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/** Provides a class for modeling new HTTP response-body APIs. */
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module ResponseBody {
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/**
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* An expression which is written to an HTTP response body.
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*
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* Extend this class to model new APIs. If you want to refine existing API models,
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* extend `HTTP::ResponseBody` instead.
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*/
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abstract class Range extends DataFlow::Node {
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/** Gets the response writer associated with this header write, if any. */
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abstract ResponseWriter getResponseWriter();
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/** Gets a content-type associated with this body. */
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string getAContentType() { result = getAContentTypeNode().getStringValue() }
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/** Gets a dataflow node for a content-type associated with this body. */
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DataFlow::Node getAContentTypeNode() {
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exists(HTTP::HeaderWrite hw | hw = getResponseWriter().getAHeaderWrite() |
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hw.getName().getStringValue().toLowerCase() = "content-type" and
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result = hw.getValue()
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)
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}
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}
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}
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/**
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* An expression which is written to an HTTP response body.
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*
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* Extend this class to refine existing API models. If you want to model new APIs,
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* extend `HTTP::ResponseBody::Range` instead.
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*/
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class ResponseBody extends DataFlow::Node {
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ResponseBody::Range self;
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ResponseBody() { this = self }
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/** Gets the response writer associated with this header write, if any. */
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ResponseWriter getResponseWriter() { result = self.getResponseWriter() }
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/** Gets a content-type associated with this body. */
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string getAContentType() { result = self.getAContentType() }
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/** Gets a dataflow node for a content-type associated with this body. */
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DataFlow::Node getAContentTypeNode() { result = self.getAContentTypeNode() }
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}
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/** Provides a class for modeling new HTTP client request APIs. */
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module ClientRequest {
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/**
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* A call that performs a request to a URL.
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*
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* Example: An HTTP POST request is a client request that sends some
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* `data` to a `url`, where both the headers and the body of the request
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* contribute to the `data`.
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*
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* Extend this class to model new APIs. If you want to refine existing API models,
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* extend `HTTP::ClientRequest` instead.
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*/
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abstract class Range extends DataFlow::Node {
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/**
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* Gets the URL of the request.
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*/
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abstract DataFlow::Node getUrl();
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}
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}
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/**
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* A call that performs a request to a URL.
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*
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* Extend this class to refine existing API models. If you want to model new APIs,
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* extend `HTTP::ClientRequest::Range` instead.
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*/
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class ClientRequest extends DataFlow::Node {
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ClientRequest::Range self;
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ClientRequest() { this = self }
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/**
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* Gets the URL of the request.
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*/
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DataFlow::Node getUrl() { result = self.getUrl() }
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}
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/** Provides a class for modeling new HTTP redirect APIs. */
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module Redirect {
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/**
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* An HTTP redirect.
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*
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* Extend this class to model new APIs. If you want to refine existing API models,
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* extend `HTTP::Redirect` instead.
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*/
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abstract class Range extends DataFlow::Node {
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/** Gets the data-flow node representing the URL being redirected to. */
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abstract DataFlow::Node getUrl();
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/** Gets the response writer that this redirect is sent on, if any. */
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abstract ResponseWriter getResponseWriter();
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}
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/**
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* An assignment of the HTTP Location header, which indicates the location for a
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* redirect.
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*/
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private class LocationHeaderSet extends Range, HeaderWrite {
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LocationHeaderSet() { this.getHeaderName() = "location" }
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override DataFlow::Node getUrl() { result = this.getValue() }
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override ResponseWriter getResponseWriter() { result = HeaderWrite.super.getResponseWriter() }
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}
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/**
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* An HTTP request attribute that is generally not attacker-controllable for
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* open redirect exploits; for example, a form field submitted in a POST request.
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*/
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abstract class UnexploitableSource extends DataFlow::Node { }
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}
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/**
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* An HTTP redirect.
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*
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* Extend this class to refine existing API models. If you want to model new APIs,
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* extend `HTTP::Redirect::Range` instead.
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*/
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class Redirect extends DataFlow::Node {
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Redirect::Range self;
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Redirect() { this = self }
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/** Gets the data-flow node representing the URL being redirected to. */
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DataFlow::Node getUrl() { result = self.getUrl() }
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/** Gets the response writer that this redirect is sent on, if any. */
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ResponseWriter getResponseWriter() { result = self.getResponseWriter() }
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}
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}
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/**
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* A call to a logging mechanism.
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*
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293
ql/src/semmle/go/concepts/HTTP.qll
Normal file
293
ql/src/semmle/go/concepts/HTTP.qll
Normal file
@@ -0,0 +1,293 @@
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/**
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* Provides classes for working with HTTP-related concepts such as requests and responses.
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*/
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import go
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/** Provides classes for modeling HTTP-related APIs. */
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module HTTP {
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/** Provides a class for modeling new HTTP response-writer APIs. */
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module ResponseWriter {
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/**
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* A variable that is an HTTP response writer.
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*
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* Extend this class to model new APIs. If you want to refine existing API models,
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* extend `HTTP::ResponseWriter` instead.
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*/
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abstract class Range extends Variable {
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/**
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* Gets a data-flow node that is a use of this response writer.
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*
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* Note that `PostUpdateNode`s for nodes that this predicate gets do not need to be
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* included, as they are handled by the concrete `ResponseWriter`'s `getANode`.
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*/
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abstract DataFlow::Node getANode();
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}
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}
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/**
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* A variable that is an HTTP response writer.
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*
|
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* Extend this class to refine existing API models. If you want to model new APIs,
|
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* extend `HTTP::ResponseWriter::Range` instead.
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*/
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class ResponseWriter extends Variable {
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ResponseWriter::Range self;
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ResponseWriter() { this = self }
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/** Gets the body that is written in this HTTP response. */
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ResponseBody getBody() { result.getResponseWriter() = this }
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/** Gets a header write that is written in this HTTP response. */
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HeaderWrite getAHeaderWrite() { result.getResponseWriter() = this }
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/** Gets a redirect that is sent in this HTTP response. */
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Redirect getARedirect() { result.getResponseWriter() = this }
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/** Gets a data-flow node that is a use of this response writer. */
|
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DataFlow::Node getANode() {
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result = self.getANode() or
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result.(DataFlow::PostUpdateNode).getPreUpdateNode() = self.getANode()
|
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}
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}
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/** Provides a class for modeling new HTTP header-write APIs. */
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module HeaderWrite {
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/**
|
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* A data-flow node that represents a write to an HTTP header.
|
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*
|
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* Extend this class to model new APIs. If you want to refine existing API models,
|
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* extend `HTTP::HeaderWrite` instead.
|
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*/
|
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abstract class Range extends DataFlow::ExprNode {
|
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/** Gets the (lower-case) name of a header set by this definition. */
|
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string getHeaderName() { result = this.getName().getStringValue().toLowerCase() }
|
||||
|
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/** Holds if this header write defines the header `header`. */
|
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predicate definesHeader(string header, string value) {
|
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header = this.getName().getStringValue().toLowerCase() and
|
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value = this.getValue().getStringValue()
|
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}
|
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|
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/** Gets the node representing the name of the header defined by this write. */
|
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abstract DataFlow::Node getName();
|
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|
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/** Gets the node representing the value of the header defined by this write. */
|
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abstract DataFlow::Node getValue();
|
||||
|
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/** Gets the response writer associated with this header write, if any. */
|
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abstract ResponseWriter getResponseWriter();
|
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}
|
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}
|
||||
|
||||
/**
|
||||
* A data-flow node that represents a write to an HTTP header.
|
||||
*
|
||||
* Extend this class to refine existing API models. If you want to model new APIs,
|
||||
* extend `HTTP::HeaderWrite::Range` instead.
|
||||
*/
|
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class HeaderWrite extends DataFlow::ExprNode {
|
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HeaderWrite::Range self;
|
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|
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HeaderWrite() { this = self }
|
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|
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/** Gets the (lower-case) name of a header set by this definition. */
|
||||
string getHeaderName() { result = self.getHeaderName() }
|
||||
|
||||
/** Holds if this header write defines the header `header`. */
|
||||
predicate definesHeader(string header, string value) { self.definesHeader(header, value) }
|
||||
|
||||
/** Gets the node representing the name of the header defined by this write. */
|
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DataFlow::Node getName() { result = self.getName() }
|
||||
|
||||
/** Gets the node representing the value of the header defined by this write. */
|
||||
DataFlow::Node getValue() { result = self.getValue() }
|
||||
|
||||
/** Gets the response writer associated with this header write, if any. */
|
||||
ResponseWriter getResponseWriter() { result = self.getResponseWriter() }
|
||||
}
|
||||
|
||||
/** A data-flow node whose value is written to an HTTP header. */
|
||||
class Header extends DataFlow::Node {
|
||||
HeaderWrite hw;
|
||||
|
||||
Header() {
|
||||
this = hw.getName()
|
||||
or
|
||||
this = hw.getValue()
|
||||
}
|
||||
|
||||
/** Gets the response writer associated with this header write, if any. */
|
||||
ResponseWriter getResponseWriter() { result = hw.getResponseWriter() }
|
||||
}
|
||||
|
||||
/** A data-flow node whose value is written to the value of an HTTP header. */
|
||||
class HeaderValue extends Header {
|
||||
HeaderValue() { this = hw.getValue() }
|
||||
}
|
||||
|
||||
/** A data-flow node whose value is written to the name of an HTTP header. */
|
||||
class HeaderName extends Header {
|
||||
HeaderName() { this = hw.getName() }
|
||||
}
|
||||
|
||||
/** Provides a class for modeling new HTTP request-body APIs. */
|
||||
module RequestBody {
|
||||
/**
|
||||
* An expression representing a reader whose content is written to an HTTP request body.
|
||||
*
|
||||
* Extend this class to model new APIs. If you want to refine existing API models,
|
||||
* extend `HTTP::RequestBody` instead.
|
||||
*/
|
||||
abstract class Range extends DataFlow::Node { }
|
||||
}
|
||||
|
||||
/**
|
||||
* An expression representing a reader whose content is written to an HTTP request body.
|
||||
*
|
||||
* Extend this class to refine existing API models. If you want to model new APIs,
|
||||
* extend `HTTP::RequestBody::Range` instead.
|
||||
*/
|
||||
class RequestBody extends DataFlow::Node {
|
||||
RequestBody::Range self;
|
||||
|
||||
RequestBody() { this = self }
|
||||
}
|
||||
|
||||
/** Provides a class for modeling new HTTP response-body APIs. */
|
||||
module ResponseBody {
|
||||
/**
|
||||
* An expression which is written to an HTTP response body.
|
||||
*
|
||||
* Extend this class to model new APIs. If you want to refine existing API models,
|
||||
* extend `HTTP::ResponseBody` instead.
|
||||
*/
|
||||
abstract class Range extends DataFlow::Node {
|
||||
/** Gets the response writer associated with this header write, if any. */
|
||||
abstract ResponseWriter getResponseWriter();
|
||||
|
||||
/** Gets a content-type associated with this body. */
|
||||
string getAContentType() { result = getAContentTypeNode().getStringValue() }
|
||||
|
||||
/** Gets a dataflow node for a content-type associated with this body. */
|
||||
DataFlow::Node getAContentTypeNode() {
|
||||
exists(HTTP::HeaderWrite hw | hw = getResponseWriter().getAHeaderWrite() |
|
||||
hw.getName().getStringValue().toLowerCase() = "content-type" and
|
||||
result = hw.getValue()
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* An expression which is written to an HTTP response body.
|
||||
*
|
||||
* Extend this class to refine existing API models. If you want to model new APIs,
|
||||
* extend `HTTP::ResponseBody::Range` instead.
|
||||
*/
|
||||
class ResponseBody extends DataFlow::Node {
|
||||
ResponseBody::Range self;
|
||||
|
||||
ResponseBody() { this = self }
|
||||
|
||||
/** Gets the response writer associated with this header write, if any. */
|
||||
ResponseWriter getResponseWriter() { result = self.getResponseWriter() }
|
||||
|
||||
/** Gets a content-type associated with this body. */
|
||||
string getAContentType() { result = self.getAContentType() }
|
||||
|
||||
/** Gets a dataflow node for a content-type associated with this body. */
|
||||
DataFlow::Node getAContentTypeNode() { result = self.getAContentTypeNode() }
|
||||
}
|
||||
|
||||
/** Provides a class for modeling new HTTP client request APIs. */
|
||||
module ClientRequest {
|
||||
/**
|
||||
* A call that performs a request to a URL.
|
||||
*
|
||||
* Example: An HTTP POST request is a client request that sends some
|
||||
* `data` to a `url`, where both the headers and the body of the request
|
||||
* contribute to the `data`.
|
||||
*
|
||||
* Extend this class to model new APIs. If you want to refine existing API models,
|
||||
* extend `HTTP::ClientRequest` instead.
|
||||
*/
|
||||
abstract class Range extends DataFlow::Node {
|
||||
/**
|
||||
* Gets the URL of the request.
|
||||
*/
|
||||
abstract DataFlow::Node getUrl();
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* A call that performs a request to a URL.
|
||||
*
|
||||
* Extend this class to refine existing API models. If you want to model new APIs,
|
||||
* extend `HTTP::ClientRequest::Range` instead.
|
||||
*/
|
||||
class ClientRequest extends DataFlow::Node {
|
||||
ClientRequest::Range self;
|
||||
|
||||
ClientRequest() { this = self }
|
||||
|
||||
/**
|
||||
* Gets the URL of the request.
|
||||
*/
|
||||
DataFlow::Node getUrl() { result = self.getUrl() }
|
||||
}
|
||||
|
||||
/** Provides a class for modeling new HTTP redirect APIs. */
|
||||
module Redirect {
|
||||
/**
|
||||
* An HTTP redirect.
|
||||
*
|
||||
* Extend this class to model new APIs. If you want to refine existing API models,
|
||||
* extend `HTTP::Redirect` instead.
|
||||
*/
|
||||
abstract class Range extends DataFlow::Node {
|
||||
/** Gets the data-flow node representing the URL being redirected to. */
|
||||
abstract DataFlow::Node getUrl();
|
||||
|
||||
/** Gets the response writer that this redirect is sent on, if any. */
|
||||
abstract ResponseWriter getResponseWriter();
|
||||
}
|
||||
|
||||
/**
|
||||
* An assignment of the HTTP Location header, which indicates the location for a
|
||||
* redirect.
|
||||
*/
|
||||
private class LocationHeaderSet extends Range, HeaderWrite {
|
||||
LocationHeaderSet() { this.getHeaderName() = "location" }
|
||||
|
||||
override DataFlow::Node getUrl() { result = this.getValue() }
|
||||
|
||||
override ResponseWriter getResponseWriter() { result = HeaderWrite.super.getResponseWriter() }
|
||||
}
|
||||
|
||||
/**
|
||||
* An HTTP request attribute that is generally not attacker-controllable for
|
||||
* open redirect exploits; for example, a form field submitted in a POST request.
|
||||
*/
|
||||
abstract class UnexploitableSource extends DataFlow::Node { }
|
||||
}
|
||||
|
||||
/**
|
||||
* An HTTP redirect.
|
||||
*
|
||||
* Extend this class to refine existing API models. If you want to model new APIs,
|
||||
* extend `HTTP::Redirect::Range` instead.
|
||||
*/
|
||||
class Redirect extends DataFlow::Node {
|
||||
Redirect::Range self;
|
||||
|
||||
Redirect() { this = self }
|
||||
|
||||
/** Gets the data-flow node representing the URL being redirected to. */
|
||||
DataFlow::Node getUrl() { result = self.getUrl() }
|
||||
|
||||
/** Gets the response writer that this redirect is sent on, if any. */
|
||||
ResponseWriter getResponseWriter() { result = self.getResponseWriter() }
|
||||
}
|
||||
}
|
||||
@@ -1,7 +1,3 @@
|
||||
/**
|
||||
* Provides classes for working with HTTP-related concepts such as requests and responses.
|
||||
*/
|
||||
|
||||
import go
|
||||
|
||||
/**
|
||||
Reference in New Issue
Block a user