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package main |
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import ( |
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"encoding/xml" |
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"fmt" |
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"time" |
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"net/http" |
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"os" |
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) |
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// URLSet is root for site mite |
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type URLSet struct { |
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XMLName xml.Name `xml:"urlset"` |
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XMLNs string `xml:"xmlns,attr"` |
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URL []URL `xml:"url"` |
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} |
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// URL is for every single location url |
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type URL struct { |
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Loc string `xml:"loc"` |
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LastMod string `xml:"lastmod,omitempty"` |
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ChangeFreq string `xml:"changefreq,omitempty"` |
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Priority float32 `xml:"priority,omitempty"` |
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} |
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type ValidURL struct{ |
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IsValid bool |
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URL URL |
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StatusCode int |
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} |
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func (us *URLSet) saveToFile(filename string) error { |
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m, err := xml.Marshal((*us)) |
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if err != nil { |
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return err |
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} |
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file, err := os.OpenFile(filename, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0777) |
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file.Write([]byte(xml.Header)) |
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file.Write(m) |
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file.Close() |
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return err |
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} |
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func (us *URLSet) validate() URLSet { |
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client := &http.Client{ |
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Timeout: 10*time.Second, |
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} |
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validURLChannel := make(chan ValidURL) |
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for _, url := range (*us).URL { |
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go func(url URL, validURLChannel chan ValidURL) { |
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resp, err := client.Get(url.Loc) |
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statusCode := (*resp).StatusCode |
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validURL := ValidURL { |
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IsValid: err == nil && statusCode == 200, |
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URL: url, |
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StatusCode: statusCode, |
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} |
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validURLChannel <- validURL |
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}(url, validURLChannel) |
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} |
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newURLSet := URLSet{ |
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XMLNs: us.XMLNs, |
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} |
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for range us.URL { |
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validURL:= <-validURLChannel |
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if validURL.IsValid { |
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newURLSet.URL = append(newURLSet.URL, validURL.URL) |
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}else{ |
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fmt.Printf("Url is dead (%s): %s \n",validURL.StatusCode,validURL.URL.Loc) |
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} |
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} |
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close(validURLChannel) |
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return newURLSet |
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} |
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//i will use first parameter to determine sitemapIndex or not. |
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func newURLSetFromXML(rawXMLData []byte) (bool,URLSet) { |
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us := URLSet{} |
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err := xml.Unmarshal(rawXMLData, &us) |
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if err != nil { //some kind of goto |
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sitemapIndex := newSitemapIndexFromXML(rawXMLData) |
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sitemapIndexValidate(sitemapIndex) |
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return true, URLSet{} |
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} |
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return false,us |
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} |
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func singleProcess(uri string, filename string) { |
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client := &http.Client{ |
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Timeout: 10*time.Second, |
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} |
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resp, err := client.Get(uri) |
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if err != nil { |
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fmt.Printf("Url cannot fetched: %s\n", uri) |
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fmt.Println(err) |
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os.Exit(1) |
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} |
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rawXMLData := readXMLFromResponse(resp) |
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isJumped, urlSet := newURLSetFromXML(rawXMLData) |
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if !isJumped { |
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newURLSet := urlSet.validate() |
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err = newURLSet.saveToFile(filename) |
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if err != nil { |
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fmt.Println(err) |
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os.Exit(1) |
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} |
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} |
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} |
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workouse /
sitemap-checker
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