Documentation

Overview

Package gosec holds the central scanning logic used by gosec security scanner

Index

Constants

View Source
const (
	// Globals are applicable to all rules and used for general
	// configuration settings for gosec.
	Globals = "global"
)
View Source
const LoadMode = packages.NeedName |
	packages.NeedFiles |
	packages.NeedCompiledGoFiles |
	packages.NeedImports |
	packages.NeedTypes |
	packages.NeedTypesSizes |
	packages.NeedTypesInfo |
	packages.NeedSyntax |
	packages.NeedModule |
	packages.NeedEmbedFiles |
	packages.NeedEmbedPatterns

LoadMode controls the amount of details to return when loading the packages

Variables

This section is empty.

Functions

func ConcatString 

func ConcatString(n *ast.BinaryExpr) (string, bool)

ConcatString recursively concatenates strings from a binary expression

func ExcludedDirsRegExp 

func ExcludedDirsRegExp(excludedDirs []string) []*regexp.Regexp

ExcludedDirsRegExp builds the regexps for a list of excluded dirs provided as strings

func FindVarIdentities 

func FindVarIdentities(n *ast.BinaryExpr, c *Context) ([]*ast.Ident, bool)

FindVarIdentities returns array of all variable identities in a given binary expression

func GetBinaryExprOperands added in v2.4.0

func GetBinaryExprOperands(be *ast.BinaryExpr) []ast.Node

GetBinaryExprOperands returns all operands of a binary expression by traversing the expression tree

func GetCallInfo 

func GetCallInfo(n ast.Node, ctx *Context) (string, string, error)

GetCallInfo returns the package or type and name associated with a call expression.

func GetCallObject 

func GetCallObject(n ast.Node, ctx *Context) (*ast.CallExpr, types.Object)

GetCallObject returns the object and call expression and associated object for a given AST node. nil, nil will be returned if the object cannot be resolved.

func GetCallStringArgsValues 

func GetCallStringArgsValues(n ast.Node, _ *Context) []string

GetCallStringArgsValues returns the values of strings arguments if they can be resolved

func GetChar 

func GetChar(n ast.Node) (byte, error)

GetChar will read and return a char value from an ast.BasicLit

func GetFloat 

func GetFloat(n ast.Node) (float64, error)

GetFloat will read and return a float value from an ast.BasicLit

func GetIdentStringValues 

func GetIdentStringValues(ident *ast.Ident) []string

GetIdentStringValues return the string values of an Ident if they can be resolved

func GetIdentStringValuesRecursive added in v2.17.0

func GetIdentStringValuesRecursive(ident *ast.Ident) []string

GetIdentStringValuesRecursive returns the string of values of an Ident if they can be resolved The difference between this and GetIdentStringValues is that it will attempt to resolve the strings recursively, if it is passed a *ast.BinaryExpr. See GetStringRecursive for details

func GetImportPath 

func GetImportPath(name string, ctx *Context) (string, bool)

GetImportPath resolves the full import path of an identifier based on the imports in the current context(including aliases).

func GetImportedNames added in v2.14.0

func GetImportedNames(path string, ctx *Context) (names []string, found bool)

GetImportedNames returns the name(s)/alias(es) used for the package within the code. It ignores initialization-only imports.

func GetInt 

func GetInt(n ast.Node) (int64, error)

GetInt will read and return an integer value from an ast.BasicLit

func GetLocation 

func GetLocation(n ast.Node, ctx *Context) (string, int)

GetLocation returns the filename and line number of an ast.Node

func GetPkgAbsPath 

func GetPkgAbsPath(pkgPath string) (string, error)

GetPkgAbsPath returns the Go package absolute path derived from the given path

func GetPkgRelativePath 

func GetPkgRelativePath(path string) (string, error)

GetPkgRelativePath returns the Go relative path derived form the given path

func GetString 

func GetString(n ast.Node) (string, error)

GetString will read and return a string value from an ast.BasicLit

func GetStringRecursive added in v2.17.0

func GetStringRecursive(n ast.Node) (string, error)

func Getenv 

func Getenv(key, userDefault string) string

Getenv returns the values of the environment variable, otherwise returns the default if variable is not set

func GoVersion added in v2.12.0

func GoVersion() (int, int, int)

GoVersion returns parsed version of Go mod version and fallback to runtime version if not found.

func Gopath 

func Gopath() []string

Gopath returns all GOPATHs

func MatchCallByPackage 

func MatchCallByPackage(n ast.Node, c *Context, pkg string, names ...string) (*ast.CallExpr, bool)

MatchCallByPackage ensures that the specified package is imported, adjusts the name for any aliases and ignores cases that are initialization only imports.

Usage:

node, matched := MatchCallByPackage(n, ctx, "math/rand", "Read")

func MatchCompLit 

func MatchCompLit(n ast.Node, ctx *Context, required string) *ast.CompositeLit

MatchCompLit will match an ast.CompositeLit based on the supplied type

func NoSecTag added in v2.17.0

func NoSecTag(tag string) string

NoSecTag returns the tag used to disable gosec for a line of code.

func PackagePaths 

func PackagePaths(root string, excludes []*regexp.Regexp) ([]string, error)

PackagePaths returns a slice with all packages path at given root directory

func RootPath 

func RootPath(root string) (string, error)

RootPath returns the absolute root path of a scan

func TryResolve 

func TryResolve(n ast.Node, c *Context) bool

TryResolve will attempt, given a subtree starting at some AST node, to resolve all values contained within to a known constant. It is used to check for any unknown values in compound expressions.

Types

type Analyzer 

type Analyzer struct {
	// contains filtered or unexported fields
}

Analyzer object is the main object of gosec. It has methods traverse an AST and invoke the correct checking rules as on each node as required.

func NewAnalyzer 

func NewAnalyzer(conf Config, tests bool, excludeGenerated bool, trackSuppressions bool, concurrency int, logger *log.Logger) *Analyzer

NewAnalyzer builds a new analyzer.

func (*Analyzer) AppendError 

func (gosec *Analyzer) AppendError(file string, err error)

AppendError appends an error to the file errors

func (*Analyzer) CheckAnalyzers added in v2.16.0

func (gosec *Analyzer) CheckAnalyzers(pkg *packages.Package)

CheckAnalyzers runs analyzers on a given package.

func (*Analyzer) CheckRules added in v2.16.0

func (gosec *Analyzer) CheckRules(pkg *packages.Package)

CheckRules runs analysis on the given package.

func (*Analyzer) Config 

func (gosec *Analyzer) Config() Config

Config returns the current configuration

func (*Analyzer) LoadAnalyzers added in v2.21.0

func (gosec *Analyzer) LoadAnalyzers(analyzerDefinitions map[string]analyzers.AnalyzerDefinition, analyzerSuppressed map[string]bool)

LoadAnalyzers instantiates all the analyzers to be used when analyzing source packages

func (*Analyzer) LoadRules 

func (gosec *Analyzer) LoadRules(ruleDefinitions map[string]RuleBuilder, ruleSuppressed map[string]bool)

LoadRules instantiates all the rules to be used when analyzing source packages

func (*Analyzer) ParseErrors 

func (gosec *Analyzer) ParseErrors(pkg *packages.Package) error

ParseErrors parses the errors from given package

func (*Analyzer) Process 

func (gosec *Analyzer) Process(buildTags []string, packagePaths ...string) error

Process kicks off the analysis process for a given package

func (*Analyzer) Report 

func (gosec *Analyzer) Report() ([]*issue.Issue, *Metrics, map[string][]Error)

Report returns the current issues discovered and the metrics about the scan

func (*Analyzer) Reset 

func (gosec *Analyzer) Reset()

Reset clears state such as context, issues and metrics from the configured analyzer

func (*Analyzer) SetConfig 

func (gosec *Analyzer) SetConfig(conf Config)

SetConfig updates the analyzer configuration

func (*Analyzer) Visit 

func (gosec *Analyzer) Visit(n ast.Node) ast.Visitor

Visit runs the gosec visitor logic over an AST created by parsing go code. Rule methods added with AddRule will be invoked as necessary.

type CallList 

type CallList map[string]set

CallList is used to check for usage of specific packages and functions.

func NewCallList 

func NewCallList() CallList

NewCallList creates a new empty CallList

func (CallList) Add 

func (c CallList) Add(selector, ident string)

Add a selector and call to the call list

func (CallList) AddAll 

func (c CallList) AddAll(selector string, idents ...string)

AddAll will add several calls to the call list at once

func (CallList) Contains 

func (c CallList) Contains(selector, ident string) bool

Contains returns true if the package and function are members of this call list.

func (CallList) ContainsCallExpr 

func (c CallList) ContainsCallExpr(n ast.Node, ctx *Context) *ast.CallExpr

ContainsCallExpr resolves the call expression name and type, and then determines if the call exists with the call list

func (CallList) ContainsPkgCallExpr 

func (c CallList) ContainsPkgCallExpr(n ast.Node, ctx *Context, stripVendor bool) *ast.CallExpr

ContainsPkgCallExpr resolves the call expression name and type, and then further looks up the package path for that type. Finally, it determines if the call exists within the call list

func (CallList) ContainsPointer 

func (c CallList) ContainsPointer(selector, indent string) bool

ContainsPointer returns true if a pointer to the selector type or the type itself is a members of this call list.

type Config 

type Config map[string]interface{}

Config is used to provide configuration and customization to each of the rules.

func NewConfig 

func NewConfig() Config

NewConfig initializes a new configuration instance. The configuration data then needs to be loaded via c.ReadFrom(strings.NewReader("config data")) or from a *os.File.

func (Config) Get 

func (c Config) Get(section string) (interface{}, error)

Get returns the configuration section for the supplied key

func (Config) GetGlobal 

func (c Config) GetGlobal(option GlobalOption) (string, error)

GetGlobal returns value associated with global configuration option

func (Config) IsGlobalEnabled 

func (c Config) IsGlobalEnabled(option GlobalOption) (bool, error)

IsGlobalEnabled checks if a global option is enabled

func (Config) ReadFrom 

func (c Config) ReadFrom(r io.Reader) (int64, error)

ReadFrom implements the io.ReaderFrom interface. This should be used with io.Reader to load configuration from file or from string etc.

func (Config) Set 

func (c Config) Set(section string, value interface{})

Set section in the configuration to specified value

func (Config) SetGlobal 

func (c Config) SetGlobal(option GlobalOption, value string)

SetGlobal associates a value with a global configuration option

func (Config) WriteTo 

func (c Config) WriteTo(w io.Writer) (int64, error)

WriteTo implements the io.WriteTo interface. This should be used to save or print out the configuration information.

type Context 

type Context struct {
	FileSet      *token.FileSet
	Comments     ast.CommentMap
	Info         *types.Info
	Pkg          *types.Package
	PkgFiles     []*ast.File
	Root         *ast.File
	Imports      *ImportTracker
	Config       Config
	Ignores      ignores
	PassedValues map[string]interface{}
}

The Context is populated with data parsed from the source code as it is scanned. It is passed through to all rule functions as they are called. Rules may use this data in conjunction with the encountered AST node.

func (*Context) GetFileAtNodePos added in v2.16.0

func (ctx *Context) GetFileAtNodePos(node ast.Node) *token.File

GetFileAtNodePos returns the file at the node position in the file set available in the context.

func (*Context) NewIssue added in v2.16.0

func (ctx *Context) NewIssue(node ast.Node, ruleID, desc string,
	severity, confidence issue.Score,
) *issue.Issue

NewIssue creates a new issue

type Error 

type Error struct {
	Line   int    `json:"line"`
	Column int    `json:"column"`
	Err    string `json:"error"`
}

Error is used when there are golang errors while parsing the AST

func NewError 

func NewError(line, column int, err string) *Error

NewError creates Error object

type GlobalOption 

type GlobalOption string

GlobalOption defines the name of the global options

const (
	// Nosec global option for #nosec directive
	Nosec GlobalOption = "nosec"
	// ShowIgnored defines whether nosec issues are counted as finding or not
	ShowIgnored GlobalOption = "show-ignored"
	// Audit global option which indicates that gosec runs in audit mode
	Audit GlobalOption = "audit"
	// NoSecAlternative global option alternative for #nosec directive
	NoSecAlternative GlobalOption = "#nosec"
	// ExcludeRules global option for some rules  should not be load
	ExcludeRules GlobalOption = "exclude"
	// IncludeRules global option for  should be load
	IncludeRules GlobalOption = "include"
	// SSA global option to enable go analysis framework with SSA support
	SSA GlobalOption = "ssa"
)

type ImportTracker 

type ImportTracker struct {
	// Imported is a map of Imported with their associated names/aliases.
	Imported map[string][]string
}

ImportTracker is used to normalize the packages that have been imported by a source file. It is able to differentiate between plain imports, aliased imports and init only imports.

func NewImportTracker 

func NewImportTracker() *ImportTracker

NewImportTracker creates an empty Import tracker instance

func (*ImportTracker) TrackFile 

func (t *ImportTracker) TrackFile(file *ast.File)

TrackFile track all the imports used by the supplied file

func (*ImportTracker) TrackImport 

func (t *ImportTracker) TrackImport(imported *ast.ImportSpec)

TrackImport tracks imports.

func (*ImportTracker) TrackPackages 

func (t *ImportTracker) TrackPackages(pkgs ...*types.Package)

TrackPackages tracks all the imports used by the supplied packages

type Metrics 

type Metrics struct {
	NumFiles int `json:"files"`
	NumLines int `json:"lines"`
	NumNosec int `json:"nosec"`
	NumFound int `json:"found"`
}

Metrics used when reporting information about a scanning run.

type ReportInfo added in v2.8.0

type ReportInfo struct {
	Errors       map[string][]Error `json:"Golang errors"`
	Issues       []*issue.Issue
	Stats        *Metrics
	GosecVersion string
}

ReportInfo this is report information

func NewReportInfo added in v2.8.0

func NewReportInfo(issues []*issue.Issue, metrics *Metrics, errors map[string][]Error) *ReportInfo

NewReportInfo instantiate a ReportInfo

func (*ReportInfo) WithVersion added in v2.8.0

func (r *ReportInfo) WithVersion(version string) *ReportInfo

WithVersion defines the version of gosec used to generate the report

type Rule 

type Rule interface {
	ID() string
	Match(ast.Node, *Context) (*issue.Issue, error)
}

The Rule interface used by all rules supported by gosec.

type RuleBuilder 

type RuleBuilder func(id string, c Config) (Rule, []ast.Node)

RuleBuilder is used to register a rule definition with the analyzer

type RuleSet 

type RuleSet struct {
	Rules             map[reflect.Type][]Rule
	RuleSuppressedMap map[string]bool
}

A RuleSet contains a mapping of lists of rules to the type of AST node they should be run on and a mapping of rule ID's to whether the rule are suppressed. The analyzer will only invoke rules contained in the list associated with the type of AST node it is currently visiting.

func NewRuleSet 

func NewRuleSet() RuleSet

NewRuleSet constructs a new RuleSet

func (RuleSet) IsRuleSuppressed added in v2.9.4

func (r RuleSet) IsRuleSuppressed(ruleID string) bool

IsRuleSuppressed will return whether the rule is suppressed.

func (RuleSet) Register 

func (r RuleSet) Register(rule Rule, isSuppressed bool, nodes ...ast.Node)

Register adds a trigger for the supplied rule for the specified ast nodes.

func (RuleSet) RegisteredFor 

func (r RuleSet) RegisteredFor(n ast.Node) []Rule

RegisteredFor will return all rules that are registered for a specified ast node.

Source Files

View all Source files

Directories

PathSynopsis
cmd
gosec
gosecutil
tlsconfig
vflag
csv
golint
html
json
junit
sarif
sonar
text
yaml
?: This menu
/: Search site
f or F: Jump to
y or Y: Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.