fetch

package
v1.6.19 Latest Latest
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 Go to latest Published: Jul 15, 2026 License: MIT Imports: 29 Imported by: 0

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Constants

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const (
	DefaultMaxBodySize int64 = 5 * 1024 * 1024
	DefaultMaxIconSize int64 = 512 * 1024
)
View Source 
const JSExecuteTemplate = `` /* 813-byte string literal not displayed */

Variables

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var DefaultStackDepthLimit = 300

默认JavaScript执行的堆栈深度限制

Functions

func ExtractCharset deprecated 

func ExtractCharset(htmlContent []byte) string

ExtractCharset extracts charset from an HTML document.

Deprecated: this helper is exported for compatibility and may become internal in a future release.

func ExtractContentTypeCharset deprecated 

func ExtractContentTypeCharset(contentType string) (charset string)

ExtractContentTypeCharset extracts charset from a Content-Type header.

Deprecated: this helper is exported for compatibility and may become internal in a future release.

func InsertInto deprecated 

func InsertInto(s string, interval int, sep rune) string

InsertInto inserts sep every interval runes.

Deprecated: this helper is exported for compatibility and may become internal in a future release.

func ResponseDecoding deprecated 

func ResponseDecoding(body []byte, label string) string

ResponseDecoding decodes response bytes with a charset label.

Deprecated: this helper is exported for compatibility and may become internal in a future release.

Types 

type Banner struct {
	Uri         string               `json:"uri"`
	BodyHash    int32                `json:"body_hash"`
	Body        string               `json:"body"`
	Header      string               `json:"header"`
	Headers     map[string]string    `json:"-"`
	Title       string               `json:"title"`
	StatusCode  int                  `json:"status_code"`
	Response    string               `json:"_"`
	SSL         bool                 `json:"ssl"`
	Certificate string               `json:"certificate"`
	IconHash    int32                `json:"icon_hash"`
	IconType    string               `json:"icon_type"`
	Charset     string               `json:"-"`
	Cert        *tls.ConnectionState `json:"-"`
	IconURI     string               `json:"icon_uri"`
	IconBytes   []byte               `json:"-"`
	Compliance  map[string]string    `json:"-"`
}

Banner 表示爬取的网站信息

func RequestOnce deprecated 

func RequestOnce(ctx context.Context, client *retryablehttp.Client, uri string, options ...*Options) (banner *Banner, redirectURL string, err error)

RequestOnce performs one HTTP request cycle and returns a banner plus a client-side redirect URL when one is detected.

Deprecated: prefer Fetcher.GetBanners or Fetcher.GetBanner for stable public use. This low-level helper is kept for compatibility.

func (*Banner) CacheLower 

func (b *Banner) CacheLower()

缓存小写内容、避免匹配时进行大小写转换出现的性能损耗、虽然会增加内存开销、但是可以显著提高匹配速度

type Fetcher 

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

Fetcher 定义HTTP探测和Banner采集的核心结构。

func NewFetcher 

func NewFetcher(options *Options) *Fetcher

NewFetcher 创建新的Fetcher实例。

func (*Fetcher) GetBanner 

func (c *Fetcher) GetBanner(ctx context.Context, uri string) (*Banner, error)

func (*Fetcher) GetBanners 

func (c *Fetcher) GetBanners(ctx context.Context, uri string) ([]*Banner, error)

GetBanners 实现BannerProvider接口

func (*Fetcher) GetClient 

func (c *Fetcher) GetClient() *retryablehttp.Client

GetClient 获取HTTP客户端

type Options 

type Options struct {
	DisableIcon       bool
	Proxy             string
	DebugReq          bool
	DebugResp         bool
	DisableJavaScript bool
	MaxBodySize       int64
	MaxIconSize       int64
	Timeout           time.Duration
	RetryMax          int // 重试次数
}

func DefaultOption 

func DefaultOption() *Options

Source Files

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