mirror of
https://gitlab.com/pulsechaincom/go-pulse.git
synced 2024-12-25 12:57:17 +00:00
83ee39448e
* resolver -> common/registrar * global registrar name registry interface * add Call to resolver backend interface * the hashReg and UrlHing contracts now initialised from global registry * initialization of contracts uniform * improve errors and more econsistent method names * common/registrar/ethreg: versioned registrar * integrate new naming and registrar in natspec * js console api: setGlobalRegistrar, setHashReg, setUrlHint * js test TestContract uses mining - tests fixed all pass * eth/backend: allow PoW test mode (small ethash DAG) * console jsre refers to resolver.abi/addr, * cmd/geth/contracts.go moved to common/registrar
103 lines
2.1 KiB
Go
103 lines
2.1 KiB
Go
package docserver
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import (
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"fmt"
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"io/ioutil"
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"net/http"
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"path/filepath"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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)
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type DocServer struct {
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*http.Transport
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DocRoot string
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schemes []string
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}
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func New(docRoot string) (self *DocServer) {
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self = &DocServer{
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Transport: &http.Transport{},
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DocRoot: docRoot,
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schemes: []string{"file"},
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}
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self.RegisterProtocol("file", http.NewFileTransport(http.Dir(self.DocRoot)))
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return
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}
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// Clients should be reused instead of created as needed. Clients are safe for concurrent use by multiple goroutines.
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// A Client is higher-level than a RoundTripper (such as Transport) and additionally handles HTTP details such as cookies and redirects.
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func (self *DocServer) Client() *http.Client {
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return &http.Client{
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Transport: self,
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}
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}
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func (self *DocServer) RegisterScheme(scheme string, rt http.RoundTripper) {
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self.schemes = append(self.schemes, scheme)
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self.RegisterProtocol(scheme, rt)
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}
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func (self *DocServer) HasScheme(scheme string) bool {
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for _, s := range self.schemes {
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if s == scheme {
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return true
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}
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}
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return false
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}
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func (self *DocServer) GetAuthContent(uri string, hash common.Hash) (content []byte, err error) {
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// retrieve content
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url := uri
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fmt.Printf("uri: %v\n", url)
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content, err = self.Get(url, "")
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if err != nil {
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return
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}
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// check hash to authenticate content
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hashbytes := crypto.Sha3(content)
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var chash common.Hash
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copy(chash[:], hashbytes)
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if chash != hash {
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content = nil
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err = fmt.Errorf("content hash mismatch")
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}
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return
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}
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// Get(uri, path) downloads the document at uri, if path is non-empty it
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// is interpreted as a filepath to which the contents are saved
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func (self *DocServer) Get(uri, path string) (content []byte, err error) {
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// retrieve content
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resp, err := self.Client().Get(uri)
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defer func() {
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if resp != nil {
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resp.Body.Close()
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}
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}()
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if err != nil {
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return
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}
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content, err = ioutil.ReadAll(resp.Body)
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if err != nil {
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return
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}
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if path != "" {
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var abspath string
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abspath, err = filepath.Abs(path)
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ioutil.WriteFile(abspath, content, 0700)
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}
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return
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}
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