不多说了。其实这是一个复刻版，原来的PHP代码就在注释里面。在google play上面已经存了代码了。如果你觉得我这里的代码看起来不方便，可以移步play.golang.org。
package main
import (
"fmt"
"io/ioutil"
"net/http"
"net/url"
"strings"
"unicode/utf8"
)
/**
//https://github.com/phurix/pagerank/blob/master/pagerank2.php
function GetPageRank($q,$host='toolbarqueries.google.com',$context=NULL) {
$seed = "Mining PageRank is AGAINST GOOGLE'S TERMS OF SERVICE. Yes, I'm talking to you, scammer.";
$result = 0x01020345;
$len = strlen($q);
for ($i=0; $i<$len; $i++) {
$result ^= ord($seed{$i%strlen($seed)}) ^ ord($q{$i});
$result = (($result >> 23) & 0x1ff) | $result << 9;
}
if (PHP_INT_MAX != 2147483647) { $result = -(~($result & 0xFFFFFFFF) + 1); }
$ch=sprintf('8%x', $result);
$url='http://%s/tbr?client=navclient-auto&ch=%s&features=Rank&q=info:%s';
$url=sprintf($url,$host,$ch,$q);
@$pr=file_get_contents($url,false,$context);
return $pr?substr(strrchr($pr, ':'), 1):false;
}
*/
func main() {
fmt.Println(getPageRank("http://neaststudio.com"))
}
func getPageRank(urlstring string) string {
seed := []byte("Mining PageRank is AGAINST GOOGLE'S TERMS OF SERVICE. Yes, I'm talking to you, scammer.")
seedlen := len(seed)
result := 0x01020345
q := []byte(urlstring)
qlen := len(q)
for i := 0; i < qlen; i++ {
seedmod := i % seedlen
seed_ascii, _ := utf8.DecodeLastRuneInString(string(seed[seedmod]))
q_ascii, _ := utf8.DecodeLastRuneInString(string(q[i]))
result ^= int(seed_ascii ^ q_ascii)
result = ((result >> 23) & 0x1ff) | result<<9
}
result = -(^(result & 0xffffffff) + 1)
ch := fmt.Sprintf("8%x", result)
u, _ := url.Parse("http://toolbarqueries.google.com/tbr")
uq := u.Query()
uq.Set("client", "navclient-auto")
uq.Set("ch", ch)
uq.Set("features", "Rank")
uq.Set("q", "info:"+string(q))
u.RawQuery = uq.Encode()
resp, err := http.Get(u.String())
if nil != err {
return err.Error()
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if nil != err {
return err.Error()
}
//pagerank只有一位，所以可以直接取最后一位。。。免去正则
if len(body) <= 0 {
return "error"
}
pagerankbody := strings.TrimSpace(string(body[:]))
return pagerankbody[len(pagerankbody)-1:]
}play.golang的地址是：http://play.golang.org/p/uACC-1rdF3
不过，在网页上执行会报错的，说是没有权限。。本地测试成功
