scraper

Documentation

Index

• func IsTimeoutError(err error) bool
• func SuggestRespToSuggestions(data []byte) ([]string, error)
• type DOMPaths
• type DOMPathsImages
• type EngineBase
  • func (e EngineBase) Get(ctx *colly.Context, urll string, anonUrll string) error
  • func (e EngineBase) GetName() engines.Name
  • func (e EngineBase) GetOrigins() []engines.Name
  • func (e *EngineBase) Init(ctx context.Context)
  • func (e *EngineBase) InitSearcher(ctx context.Context)
  • func (e *EngineBase) InitSuggester(ctx context.Context)
  • func (e *EngineBase) OnHTML(goquerySelector string, f colly.HTMLCallback)
  • func (e *EngineBase) OnRequest(f colly.RequestCallback)
  • func (e *EngineBase) OnResponse(f colly.ResponseCallback)
  • func (e EngineBase) PageFromContext(ctx *colly.Context) int
  • func (e EngineBase) Post(ctx *colly.Context, urll string, body io.Reader, anonBody string) error
  • func (e EngineBase) Wait()
• type Enginer
• type ImageSearcher
• type PageRankCounter
  • func NewPageRankCounter(pages int) PageRankCounter
  • func (prc *PageRankCounter) GetPlusOne(page int) int
  • func (prc *PageRankCounter) Increment(page int)
• type Suggester
• type WebSearcher

Functions

func IsTimeoutError

func IsTimeoutError(err error) bool

func SuggestRespToSuggestions

func SuggestRespToSuggestions(data []byte) ([]string, error)

Converts a opensearch.xml compatible suggestions API JSON to a slice of suggestions.

Types

type DOMPaths

type DOMPaths struct {
	ResultsContainer string
	Result           string
	URL              string
	Title            string
	Description      string
}

type DOMPathsImages

type DOMPathsImages struct {
	DOMPaths

	OriginalSize struct {
		Height string
		Width  string
	}
	ThumbnailSize struct {
		Height string
		Width  string
	}
	ThumbnailURL string
	SourceName   string
	SourceURL    string
}

type EngineBase

type EngineBase struct {
	Name    engines.Name
	Origins []engines.Name
	// contains filtered or unexported fields
}

Base struct for every search engine.

func (EngineBase) Get

func (e EngineBase) Get(ctx *colly.Context, urll string, anonUrll string) error

func (EngineBase) GetName

func (e EngineBase) GetName() engines.Name

Used to get the name of the search engine.

func (EngineBase) GetOrigins

func (e EngineBase) GetOrigins() []engines.Name

Used to get the origins of the search engine.

func (*EngineBase) Init

func (e *EngineBase) Init(ctx context.Context)

Used to initialize the EngineBase collector.

func (*EngineBase) InitSearcher

func (e *EngineBase) InitSearcher(ctx context.Context)

Used to initialize the EngineBase collector for searching web/images.

func (*EngineBase) InitSuggester

func (e *EngineBase) InitSuggester(ctx context.Context)

Used to initialize the EngineBase collector for searching suggestions.

func (*EngineBase) OnHTML

func (e *EngineBase) OnHTML(goquerySelector string, f colly.HTMLCallback)

OnHTML registers a function. Function will be executed on every HTML element matched by the GoQuery Selector parameter. GoQuery Selector is a selector used by https://github.com/PuerkitoBio/goquery.

func (*EngineBase) OnRequest

func (e *EngineBase) OnRequest(f colly.RequestCallback)

OnRequest registers a function. Function will be executed on every request made by the Collector.

func (*EngineBase) OnResponse

func (e *EngineBase) OnResponse(f colly.ResponseCallback)

OnResponse registers a function. Function will be executed on every response.

func (EngineBase) PageFromContext

func (e EngineBase) PageFromContext(ctx *colly.Context) int

func (EngineBase) Post

func (e EngineBase) Post(ctx *colly.Context, urll string, body io.Reader, anonBody string) error

func (EngineBase) Wait

func (e EngineBase) Wait()

Wait returns when the collector jobs are finished.

type Enginer

type Enginer interface {
	GetName() engines.Name
	GetOrigins() []engines.Name
	Init(context.Context)
}

Interface that each search engine must implement to be a Search Engine.

type ImageSearcher

type ImageSearcher interface {
	Enginer

	InitSearcher(context.Context)
	ImageSearch(string, options.Options, chan result.ResultScraped) ([]error, bool)
}

Interface that each search engine must implement to support searching image results.

type PageRankCounter

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

A goroutine-safe counter for PageRank.

func NewPageRankCounter

func NewPageRankCounter(pages int) PageRankCounter

Create a new PageRankCounter.

func (*PageRankCounter) GetPlusOne

func (prc *PageRankCounter) GetPlusOne(page int) int

Get the count for a page + 1.

func (*PageRankCounter) Increment

func (prc *PageRankCounter) Increment(page int)

Increment the count for a page.

type Suggester

type Suggester interface {
	Enginer

	InitSuggester(context.Context)
	Suggest(string, options.Options, chan result.SuggestionScraped) ([]error, bool)
}

Interface that each search engine must implement to support suggesting.

type WebSearcher

type WebSearcher interface {
	Enginer

	InitSearcher(context.Context)
	WebSearch(string, options.Options, chan result.ResultScraped) ([]error, bool)
}

Interface that each search engine must implement to support searching web results.