Issues with Crypto.generateMac() in SalesForce APEX - oauth

We need to make a few callouts to a service that is using OAuth 1.0 and requires each request to be signed with HMAC-SHA1.
The service doesn't have any APEX client API. Thus, we have to do it manually.
Unfortunately,
EncodingUtil.base64Encode(Crypto.generateMac('hmacSHA1', Blob.valueOf(data), Blob.valueOf(key)));
returns a different string from what we expect. We have compared the output for the same input with libraries for other languages. And the output was different.

I have no problems calling out to OAuth 1.0. Here's some sample Apex for signing your request:
EDIT: Added additional code
private Map<String,String> getUrlParams(String value)
{
Map<String,String> res = new Map<String,String>();
if(value==null || value=='')
{
return res;
}
for(String s : value.split('&'))
{
List<String> kv = s.split('=');
if(kv.size()>1)
{
res.put(kv[0],kv[1]);
}
}
return res;
}
private String createBaseString(Map<String,String> oauthParams, HttpRequest req)
{
Map<String,String> p = oauthParams.clone();
if(req.getMethod().equalsIgnoreCase('post') && req.getBody()!=null && req.getHeader('Content-Type')=='application/x-www-form-urlencoded')
p.putAll(getUrlParams(req.getBody()));
String host = req.getEndpoint();
Integer n = host.indexOf('?');
if(n > -1)
{
p.putAll(getUrlParams(host.substring(n+1)));
host = host.substring(0,n);
}
List<String> keys = new List<String>();
keys.addAll(p.keySet());
keys.sort();
String s = keys.get(0)+'='+p.get(keys.get(0));
for(Integer i=1; i<keys.size(); i++)
s = s + '&' + keys.get(i) + '=' + p.get(keys.get(i));
return req.getMethod().toUpperCase() + '&' + EncodingUtil.urlEncode(host, 'UTF-8') + '&' + EncodingUtil.urlEncode(s, 'UTF-8');
}
public void sign(HttpRequest req)
{
nonce = String.valueOf(Crypto.getRandomLong());
timestamp = String.valueOf(DateTime.now().getTime() / 1000);
refreshParameters();
String s = createBaseString(parameters, req);
Blob sig = Crypto.generateMac('HmacSHA1', Blob.valueOf(s),
Blob.valueOf(consumerSecret+'&'+ (tokenSecret!=null ? tokenSecret : '')));
signature = EncodingUtil.urlEncode(EncodingUtil.base64encode(sig), 'UTF-8');
String header = 'OAuth ';
for (String key : parameters.keySet())
{
header = header + key + '="'+parameters.get(key)+'", ';
}
header = header + 'oauth_signature="'+signature+'"';
req.setHeader('Authorization',header);
}
This might be reaching, but could there be a case-sensitivity issue? Notice I'm calling 'HmacSHA1' not 'hmacSHA1'

Related

How to authenticate with twitter from a firefox plugin

Echofon abandoned their firefox twitter plugin around April 2013, but it's been maintained on github until some recent changes to the twitter API broke it.
In normal use, authentication should follow PIN-based authentication, but instead the request to https://api.twitter.com/oauth/request_token is returning "{"errors":[{"code":32,"message":"Could not authenticate you."}]}'" status='401'
I think the problem is in the TwitterClient.buildOAuthHeader function
TwitterClient.buildOAuthHeader = function (user, method, url, param)
{
var ts = Math.ceil(Date.now() / 1000);
var diff = EchofonUtils.timestampDiff();
if (diff != 0) {
EchofonUtils.debug("local timestamp " + ts + " / server timetsamp " + (ts + diff));
ts += diff;
}
var converter = Cc["#mozilla.org/intl/scriptableunicodeconverter"].createInstance(Ci.nsIScriptableUnicodeConverter);
converter.charset = "UTF-8";
var result = {};
var data = converter.convertToByteArray(user + Date.now() + url + Math.random(), result);
var ch = Cc["#mozilla.org/security/hash;1"].createInstance(Ci.nsICryptoHash);
ch.init(ch.MD5);
ch.update(data, data.length);
var hash = ch.finish(false);
var s = convertToHexString(hash);
var oauthparam = {"oauth_consumer_key" : OAUTH_CONSUMER_KEY,
"oauth_timestamp" : ts,
"oauth_signature_method" : "HMAC-SHA1",
"oauth_nonce" : s + Math.random(),
"oauth_version" : "1.0"};
if (user.oauth_token) {
oauthparam["oauth_token"] = EchofonAccountManager.instance().get(user.user_id).oauth_token;
}
var dict = {};
for (var key in param) dict[key] = param[key];
for (var key in oauthparam) dict[key] = oauthparam[key];
var paramStr = encodeURLParameter(dict);
var base = [method, RFCEncoding(url), RFCEncoding(paramStr)].join("&");
var signature;
var secret = user.oauth_token_secret ? EchofonAccountManager.instance().get(user.user_id).oauth_token_secret : "";
var signature = EchofonSign.OAuthSignature(base, secret);
oauthparam['oauth_signature'] = signature;
var headers = [];
for (var key in oauthparam) {
headers.push(key + '="' + RFCEncoding(oauthparam[key]) + '"');
}
headers.sort();
return headers.join(",");
}
I've registered a new application at dev.twitter.com and I'm using the consumer key from that instead of the one in the repository.
Also, I've added the oauth_callback attribute to the oauthparam object, with the value set to "oob" as detailed in the PIN-based authentication link above, but the plugin is not authenticating correctly with the API.
What needs to be changed in the authorization header to correct this?
This issue has been resolved.
Instructions on how to install a patched version of the plugin here - https://github.com/echofox-team/echofon-firefox-unofficial/issues/85#issuecomment-581843812

Mp4 cannot play on iOS by request spring mvc server resource, but working on Nginx access mp4 file directly

I have two scenario when play mp4 file on iOS devices.
MP4 access by Nginx is working:
Put mp4 file in /html and using following configure, then iOS devices and chrome browser can play mp4 files properly.
server {
listen 127.0.0.1:80 default_server;
location ~ ^/storage\/*.mp4 {
root html;
}
}
MP4 access by Tomcat Spring MVC is not working: When I request by Spring mvc restful API and return ResponseEntity contains Resource Object, in chrome browser will receive and play mp4 properly. But iOS devices not working
#GetMapping(value = "/storage/{filename:.+}")
#ResponseBody
public ResponseEntity<org.springframework.core.io.Resource> accessStorageFile(HttpServletResponse response, #PathVariable String filename) throws IOException {
org.springframework.core.io.Resource resource = storageUtil.loadAsResource(filename);
InputStream inputStream = resource.getInputStream();
InputStreamResource inputStreamResource = new InputStreamResource(inputStream);
String contentType = FileTypeMap.getDefaultFileTypeMap().getContentType(resource.getFile());
contentType = resource.getFilename().contains(".mp4") ? "video/mp4" : contentType;
response.setContentType(contentType);
HttpHeaders responseHeaders = new HttpHeaders();
responseHeaders.setContentType(MediaType.valueOf(contentType));
responseHeaders.setContentLength(resource.getFile().length());
return new ResponseEntity<>(inputStreamResource, responseHeaders, HttpStatus.OK);
}
import java.io.BufferedInputStream; import java.io.File; import
java.io.IOException; import java.io.InputStream; import
java.io.OutputStream; import java.nio.file.Files; import
java.nio.file.Path; import java.nio.file.Paths; import
java.nio.file.attribute.FileTime; import java.time.LocalDateTime;
import java.time.ZoneId; import java.time.ZoneOffset; import
java.util.ArrayList; import java.util.Arrays; import java.util.List;
import javax.servlet.ServletOutputStream; import
javax.servlet.http.HttpServletRequest; import
javax.servlet.http.HttpServletResponse; import
org.springframework.util.StringUtils;
/** * * #author David 1 */ public class MultipartFileSender {
private static final int DEFAULT_BUFFER_SIZE = 20480; // ..bytes = 20KB.
private static final long DEFAULT_EXPIRE_TIME = 604800000L; // ..ms = 1 week.
private static final String MULTIPART_BOUNDARY = "MULTIPART_BYTERANGES";
Path filepath;
HttpServletRequest request;
HttpServletResponse response;
public MultipartFileSender() {
}
public static MultipartFileSender fromPath(Path path) {
return new MultipartFileSender().setFilepath(path);
}
public static MultipartFileSender fromFile(File file) {
return new MultipartFileSender().setFilepath(file.toPath());
}
public static MultipartFileSender fromURIString(String uri) {
return new MultipartFileSender().setFilepath(Paths.get(uri));
}
//** internal setter **//
private MultipartFileSender setFilepath(Path filepath) {
this.filepath = filepath;
return this;
}
public MultipartFileSender with(HttpServletRequest httpRequest) {
request = httpRequest;
return this;
}
public MultipartFileSender with(HttpServletResponse httpResponse) {
response = httpResponse;
return this;
}
public void serveResource() throws Exception {
if (response == null || request == null) {
return;
}
if (!Files.exists(filepath)) {
System.out.println("File doesn't exist at URI : {" + filepath.toAbsolutePath().toString() + "}");
response.sendError(HttpServletResponse.SC_NOT_FOUND);
return;
}
Long length = Files.size(filepath);
String fileName = filepath.getFileName().toString();
FileTime lastModifiedObj = Files.getLastModifiedTime(filepath);
if (StringUtils.isEmpty(fileName) || lastModifiedObj == null) {
response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
return;
}
long lastModified = LocalDateTime.ofInstant(lastModifiedObj.toInstant(),
ZoneId.of(ZoneOffset.systemDefault().getId())).toEpochSecond(ZoneOffset.UTC);
String contentType = "video/mp4";
// Validate request headers for caching ---------------------------------------------------
// If-None-Match header should contain "*" or ETag. If so, then return 304.
String ifNoneMatch = request.getHeader("If-None-Match");
if (ifNoneMatch != null && HttpUtils.matches(ifNoneMatch, fileName)) {
response.setHeader("ETag", fileName); // Required in 304.
response.sendError(HttpServletResponse.SC_NOT_MODIFIED);
return;
}
// If-Modified-Since header should be greater than LastModified. If so, then return 304.
// This header is ignored if any If-None-Match header is specified.
long ifModifiedSince = request.getDateHeader("If-Modified-Since");
if (ifNoneMatch == null && ifModifiedSince != -1 && ifModifiedSince + 1000 > lastModified) {
response.setHeader("ETag", fileName); // Required in 304.
response.sendError(HttpServletResponse.SC_NOT_MODIFIED);
return;
}
// Validate request headers for resume ----------------------------------------------------
// If-Match header should contain "*" or ETag. If not, then return 412.
String ifMatch = request.getHeader("If-Match");
if (ifMatch != null && !HttpUtils.matches(ifMatch, fileName)) {
response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED);
return;
}
// If-Unmodified-Since header should be greater than LastModified. If not, then return 412.
long ifUnmodifiedSince = request.getDateHeader("If-Unmodified-Since");
if (ifUnmodifiedSince != -1 && ifUnmodifiedSince + 1000 <= lastModified) {
response.sendError(HttpServletResponse.SC_PRECONDITION_FAILED);
return;
}
// Validate and process range -------------------------------------------------------------
// Prepare some variables. The full Range represents the complete file.
Range full = new Range(0, length - 1, length);
List<Range> ranges = new ArrayList<>();
// Validate and process Range and If-Range headers.
String range = request.getHeader("Range");
if (range != null) {
// Range header should match format "bytes=n-n,n-n,n-n...". If not, then return 416.
if (!range.matches("^bytes=\\d*-\\d*(,\\d*-\\d*)*$")) {
response.setHeader("Content-Range", "bytes */" + length); // Required in 416.
response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE);
return;
}
String ifRange = request.getHeader("If-Range");
if (ifRange != null && !ifRange.equals(fileName)) {
try {
long ifRangeTime = request.getDateHeader("If-Range"); // Throws IAE if invalid.
if (ifRangeTime != -1) {
ranges.add(full);
}
} catch (IllegalArgumentException ignore) {
ranges.add(full);
}
}
// If any valid If-Range header, then process each part of byte range.
if (ranges.isEmpty()) {
for (String part : range.substring(6).split(",")) {
// Assuming a file with length of 100, the following examples returns bytes at:
// 50-80 (50 to 80), 40- (40 to length=100), -20 (length-20=80 to length=100).
long start = Range.sublong(part, 0, part.indexOf("-"));
long end = Range.sublong(part, part.indexOf("-") + 1, part.length());
if (start == -1) {
start = length - end;
end = length - 1;
} else if (end == -1 || end > length - 1) {
end = length - 1;
}
// Check if Range is syntactically valid. If not, then return 416.
if (start > end) {
response.setHeader("Content-Range", "bytes */" + length); // Required in 416.
response.sendError(HttpServletResponse.SC_REQUESTED_RANGE_NOT_SATISFIABLE);
return;
}
// Add range.
ranges.add(new Range(start, end, length));
}
}
}
// Prepare and initialize response --------------------------------------------------------
// Get content type by file name and set content disposition.
String disposition = "inline";
// If content type is unknown, then set the default value.
// For all content types, see: http://www.w3schools.com/media/media_mimeref.asp
// To add new content types, add new mime-mapping entry in web.xml.
if (contentType == null) {
contentType = "application/octet-stream";
} else if (!contentType.startsWith("image")) {
// Else, expect for images, determine content disposition. If content type is supported by
// the browser, then set to inline, else attachment which will pop a 'save as' dialogue.
String accept = request.getHeader("Accept");
disposition = accept != null && HttpUtils.accepts(accept, contentType) ? "inline" : "attachment";
}
System.out.println("Content-Type : {" + contentType + "}");
// Initialize response.
response.reset();
response.setBufferSize(DEFAULT_BUFFER_SIZE);
response.setHeader("Content-Type", contentType);
response.setHeader("Content-Disposition", disposition + ";filename=\"" + fileName + "\"");
System.out.println("Content-Disposition : {" + disposition + "}");
response.setHeader("Accept-Ranges", "bytes");
response.setHeader("ETag", fileName);
response.setDateHeader("Last-Modified", lastModified);
response.setDateHeader("Expires", System.currentTimeMillis() + DEFAULT_EXPIRE_TIME);
// Send requested file (part(s)) to client ------------------------------------------------
// Prepare streams.
try (InputStream input = new BufferedInputStream(Files.newInputStream(filepath));
OutputStream output = response.getOutputStream()) {
if (ranges.isEmpty() || ranges.get(0) == full) {
// Return full file.
System.out.println("Return full file");
response.setContentType(contentType);
response.setHeader("Content-Range", "bytes " + full.start + "-" + full.end + "/" + full.total);
response.setHeader("Content-Length", String.valueOf(full.length));
Range.copy(input, output, length, full.start, full.length);
} else if (ranges.size() == 1) {
// Return single part of file.
Range r = ranges.get(0);
System.out.println("Return 1 part of file : from ({" + r.start + "}) to ({" + r.end + "})");
response.setContentType(contentType);
response.setHeader("Content-Range", "bytes " + r.start + "-" + r.end + "/" + r.total);
response.setHeader("Content-Length", String.valueOf(r.length));
response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); // 206.
// Copy single part range.
Range.copy(input, output, length, r.start, r.length);
} else {
// Return multiple parts of file.
response.setContentType("multipart/byteranges; boundary=" + MULTIPART_BOUNDARY);
response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT); // 206.
// Cast back to ServletOutputStream to get the easy println methods.
ServletOutputStream sos = (ServletOutputStream) output;
// Copy multi part range.
for (Range r : ranges) {
System.out.println("Return multi part of file : from ({" + r.start + "}) to ({" + r.end + "})");
// Add multipart boundary and header fields for every range.
sos.println();
sos.println("--" + MULTIPART_BOUNDARY);
sos.println("Content-Type: " + contentType);
sos.println("Content-Range: bytes " + r.start + "-" + r.end + "/" + r.total);
// Copy single part range of multi part range.
Range.copy(input, output, length, r.start, r.length);
}
// End with multipart boundary.
sos.println();
sos.println("--" + MULTIPART_BOUNDARY + "--");
}
}
}
private static class Range {
long start;
long end;
long length;
long total;
/**
* Construct a byte range.
*
* #param start Start of the byte range.
* #param end End of the byte range.
* #param total Total length of the byte source.
*/
public Range(long start, long end, long total) {
this.start = start;
this.end = end;
this.length = end - start + 1;
this.total = total;
}
public static long sublong(String value, int beginIndex, int endIndex) {
String substring = value.substring(beginIndex, endIndex);
return (substring.length() > 0) ? Long.parseLong(substring) : -1;
}
private static void copy(InputStream input, OutputStream output, long inputSize, long start, long length) throws IOException {
byte[] buffer = new byte[DEFAULT_BUFFER_SIZE];
int read;
if (inputSize == length) {
// Write full range.
while ((read = input.read(buffer)) > 0) {
output.write(buffer, 0, read);
output.flush();
}
} else {
input.skip(start);
long toRead = length;
while ((read = input.read(buffer)) > 0) {
if ((toRead -= read) > 0) {
output.write(buffer, 0, read);
output.flush();
} else {
output.write(buffer, 0, (int) toRead + read);
output.flush();
break;
}
}
}
}
}
private static class HttpUtils {
/**
* Returns true if the given accept header accepts the given value.
*
* #param acceptHeader The accept header.
* #param toAccept The value to be accepted.
* #return True if the given accept header accepts the given value.
*/
public static boolean accepts(String acceptHeader, String toAccept) {
String[] acceptValues = acceptHeader.split("\\s*(,|;)\\s*");
Arrays.sort(acceptValues);
return Arrays.binarySearch(acceptValues, toAccept) > -1
|| Arrays.binarySearch(acceptValues, toAccept.replaceAll("/.*$", "/*")) > -1
|| Arrays.binarySearch(acceptValues, "*/*") > -1;
}
/**
* Returns true if the given match header matches the given value.
*
* #param matchHeader The match header.
* #param toMatch The value to be matched.
* #return True if the given match header matches the given value.
*/
public static boolean matches(String matchHeader, String toMatch) {
String[] matchValues = matchHeader.split("\\s*,\\s*");
Arrays.sort(matchValues);
return Arrays.binarySearch(matchValues, toMatch) > -1
|| Arrays.binarySearch(matchValues, "*") > -1;
}
} }
use is in your controller and make sure you are not use #RestController
you should use #Controller, and following class in void method
#RequestMapping(method = RequestMethod.GET, value = "/getFile")
public void getFile(HttpServletRequest httpRequest, HttpServletResponse httpResponse) throws Exception {
MultipartFileSender.fromPath(Paths.get("D:\8561523973120206.mp4"))
.with(httpRequest)
.with(httpResponse)
.serveResource();
}

IMAP OAuth2 with Chilkat

I was looking for a way to Authenticate an IMAP session with google's Service account
But Since we already use Chilkat how do we do it, I found the following:
http://www.cknotes.com/imap-authentication-using-oauth/
allowing me to send a raw command:
imap.SendRawCommand("AUTHENTICATE XOAUTH <base64_data>");
This shows how to strucure the command:
https://developers.google.com/gmail/xoauth2_protocol
But having trouble putting it all together.
limilabs puts things together nicely in this example:
http://www.limilabs.com/blog/oauth2-gmail-imap-service-account
They have a neat imap.LoginOAUTH2(userEmail, credential.Token.AccessToken); that wraps things up into a command. How do I do this as a raw command for Chilkat?
const string serviceAccountEmail = "service-account-xxxxxx#developer.gserviceaccount.com";
const string serviceAccountCertPath = #"service-xxxxxx.p12";
const string serviceAccountCertPassword = "notasecret";
const string userEmail = "user#domain.com";
X509Certificate2 certificate = new X509Certificate2(
serviceAccountCertPath,
serviceAccountCertPassword,
X509KeyStorageFlags.Exportable);
ServiceAccountCredential credential = new ServiceAccountCredential(
new ServiceAccountCredential.Initializer(serviceAccountEmail)
{
Scopes = new[] { "https://mail.google.com/" },
User = userEmail
}.FromCertificate(certificate));
bool success = credential.RequestAccessTokenAsync(CancellationToken.None).Result;
using (Chilkat.Imap imap = new Chilkat.Imap())
{
imap.UnlockComponent("unlock-code");
imap.Ssl = true;
imap.Port = 993;
imap.Connect("imap.gmail.com");
var authString = String.Format("user={0}" + "\x001" + "auth=Bearer {1}" + "\x001" + "\x001",userEmail, credential.Token.AccessToken);
var encoded = Convert.ToBase64String(Encoding.UTF8.GetBytes(authString));
string response = imap.SendRawCommand("AUTHENTICATE XOAUTH2 " + encoded);
imap.SelectMailbox("Inbox");
bool bUid;
bUid = false;
string mimeStr;
int i;
int n;
n = imap.NumMessages;
for (i = 1; i <= n; i++)
{
// Download the email by sequence number.
mimeStr = imap.FetchSingleAsMime(i, bUid);
Chilkat.Email chilkatEmail = new Chilkat.Email();
chilkatEmail.SetFromMimeText(mimeStr);
Console.WriteLine(chilkatEmail.Subject);
}
imap.CloseMailbox("Inbox");
Console.ReadLine();
}
}

Crawler4j With Grails App

I am making a crawler application in Groovy on Grails. I am using Crawler4j and following this tutorial.
I created a new grails project
Put the BasicCrawlController.groovy file in controllers->package
Did not create any view because I expected on doing run-app, my crawled data would appear in my crawlStorageFolder (please correct me if my understanding is flawed)
After that I just ran the application by doing run-app but I didn't see any crawling data anywhere.
Am I right in expecting some file to be created at the crawlStorageFolder location that I have given as C:/crawl/crawler4jStorage?
Do I need to create any view for this?
If I want to invoke this crawler controller from some other view on click of a submit button of a form, can I just write <g:form name="submitWebsite" url="[controller:'BasicCrawlController ']">?
I asked this because I do not have any method in this controller, so is it the right way to invoke this controller?
My code is as follows:
//All necessary imports
public class BasicCrawlController {
static main(args) throws Exception {
String crawlStorageFolder = "C:/crawl/crawler4jStorage";
int numberOfCrawlers = 1;
//int maxDepthOfCrawling = -1; default
CrawlConfig config = new CrawlConfig();
config.setCrawlStorageFolder(crawlStorageFolder);
config.setPolitenessDelay(1000);
config.setMaxPagesToFetch(100);
config.setResumableCrawling(false);
PageFetcher pageFetcher = new PageFetcher(config);
RobotstxtConfig robotstxtConfig = new RobotstxtConfig();
RobotstxtServer robotstxtServer = new RobotstxtServer(robotstxtConfig, pageFetcher);
CrawlController controller = new CrawlController(config, pageFetcher, robotstxtServer);
controller.addSeed("http://en.wikipedia.org/wiki/Web_crawler")
controller.start(BasicCrawler.class, 1);
}
}
class BasicCrawler extends WebCrawler {
final static Pattern FILTERS = Pattern
.compile(".*(\\.(css|js|bmp|gif|jpe?g"+ "|png|tiff?|mid|mp2|mp3|mp4" +
"|wav|avi|mov|mpeg|ram|m4v|pdf" +"|rm|smil|wmv|swf|wma|zip|rar|gz))\$")
/**
* You should implement this function to specify whether the given url
* should be crawled or not (based on your crawling logic).
*/
#Override
boolean shouldVisit(WebURL url) {
String href = url.getURL().toLowerCase()
!FILTERS.matcher(href).matches() && href.startsWith("http://en.wikipedia.org/wiki/Web_crawler/")
}
/**
* This function is called when a page is fetched and ready to be processed
* by your program.
*/
#Override
void visit(Page page) {
int docid = page.getWebURL().getDocid()
String url = page.getWebURL().getURL()
String domain = page.getWebURL().getDomain()
String path = page.getWebURL().getPath()
String subDomain = page.getWebURL().getSubDomain()
String parentUrl = page.getWebURL().getParentUrl()
String anchor = page.getWebURL().getAnchor()
println("Docid: ${docid} ")
println("URL: ${url} ")
println("Domain: '${domain}'")
println("Sub-domain: ' ${subDomain}'")
println("Path: '${path}'")
println("Parent page:${parentUrl} ")
println("Anchor text: ${anchor} " )
if (page.getParseData() instanceof HtmlParseData) {
HtmlParseData htmlParseData = (HtmlParseData) page.getParseData()
String text = htmlParseData.getText()
String html = htmlParseData.getHtml()
List<WebURL> links = htmlParseData.getOutgoingUrls()
println("Text length: " + text.length())
println("Html length: " + html.length())
println("Number of outgoing links: " + links.size())
}
Header[] responseHeaders = page.getFetchResponseHeaders()
if (responseHeaders != null) {
println("Response headers:")
for (Header header : responseHeaders) {
println("\t ${header.getName()} : ${header.getValue()}")
}
}
println("=============")
}
}
I'll try to translate your code into a Grails standard.
Use this under grails-app/controller
class BasicCrawlController {
def index() {
String crawlStorageFolder = "C:/crawl/crawler4jStorage";
int numberOfCrawlers = 1;
//int maxDepthOfCrawling = -1; default
CrawlConfig crawlConfig = new CrawlConfig();
crawlConfig.setCrawlStorageFolder(crawlStorageFolder);
crawlConfig.setPolitenessDelay(1000);
crawlConfig.setMaxPagesToFetch(100);
crawlConfig.setResumableCrawling(false);
PageFetcher pageFetcher = new PageFetcher(crawlConfig);
RobotstxtConfig robotstxtConfig = new RobotstxtConfig();
RobotstxtServer robotstxtServer = new RobotstxtServer(robotstxtConfig, pageFetcher);
CrawlController controller = new CrawlController(crawlConfig, pageFetcher, robotstxtServer);
controller.addSeed("http://en.wikipedia.org/wiki/Web_crawler")
controller.start(BasicCrawler.class, 1);
render "done crawling"
}
}
Use this under src/groovy
class BasicCrawler extends WebCrawler {
final static Pattern FILTERS = Pattern
.compile(".*(\\.(css|js|bmp|gif|jpe?g"+ "|png|tiff?|mid|mp2|mp3|mp4" +
"|wav|avi|mov|mpeg|ram|m4v|pdf" +"|rm|smil|wmv|swf|wma|zip|rar|gz))\$")
/**
* You should implement this function to specify whether the given url
* should be crawled or not (based on your crawling logic).
*/
#Override
boolean shouldVisit(WebURL url) {
String href = url.getURL().toLowerCase()
!FILTERS.matcher(href).matches() && href.startsWith("http://en.wikipedia.org/wiki/Web_crawler/")
}
/**
* This function is called when a page is fetched and ready to be processed
* by your program.
*/
#Override
void visit(Page page) {
int docid = page.getWebURL().getDocid()
String url = page.getWebURL().getURL()
String domain = page.getWebURL().getDomain()
String path = page.getWebURL().getPath()
String subDomain = page.getWebURL().getSubDomain()
String parentUrl = page.getWebURL().getParentUrl()
String anchor = page.getWebURL().getAnchor()
println("Docid: ${docid} ")
println("URL: ${url} ")
println("Domain: '${domain}'")
println("Sub-domain: ' ${subDomain}'")
println("Path: '${path}'")
println("Parent page:${parentUrl} ")
println("Anchor text: ${anchor} " )
if (page.getParseData() instanceof HtmlParseData) {
HtmlParseData htmlParseData = (HtmlParseData) page.getParseData()
String text = htmlParseData.getText()
String html = htmlParseData.getHtml()
List<WebURL> links = htmlParseData.getOutgoingUrls()
println("Text length: " + text.length())
println("Html length: " + html.length())
println("Number of outgoing links: " + links.size())
}
Header[] responseHeaders = page.getFetchResponseHeaders()
if (responseHeaders != null) {
println("Response headers:")
for (Header header : responseHeaders) {
println("\t ${header.getName()} : ${header.getValue()}")
}
}
println("=============")
}
}

Thinktecture Identity Server with OAuth Implicit Login

I am trying to use javascript to login to identity server in OAuths Client. I can login and return to the return webpage successful.
I met a problem is why the Thinktecture identity sevrer always return '#' not '?' before parameters in querystring ,is that a bug?
the other question is how can I get the uses claims when I have access_token?
Implicit flow uses a hash fragment not a query string - that is not a bug (check the OAuth2 spec).
The client does not consume the access token in OAuth2 - it is opaque to the client - the access token is meant to be used by the backend.
I write a javascript function with regular expression to extract the "access_token" parameter as below:
var _access_token = getParameterByName('access_token');
function getParameterByName(name) {
var str = location.hash.substring(1);
var patt1 = new RegExp(name + "\\s*=\\s*([^&]+)", "g");
var result = patt1.exec(str);;
if (result == null)
return "";
else
return result[1];
}
then I try to use base64 to decode the access_token to get to extract the claims:
var Claims = base64decode(access_token)
function base64decode(input) {
var output = "";
var chr1, chr2, chr3;
var enc1, enc2, enc3, enc4;
var i = 0;
input = input.replace(/[^A-Za-z0-9\+\/\=]/g, "");
while (i < input.length) {
enc1 = this._keyStr.indexOf(input.charAt(i++));
enc2 = this._keyStr.indexOf(input.charAt(i++));
enc3 = this._keyStr.indexOf(input.charAt(i++));
enc4 = this._keyStr.indexOf(input.charAt(i++));
chr1 = (enc1 << 2) | (enc2 >> 4);
chr2 = ((enc2 & 15) << 4) | (enc3 >> 2);
chr3 = ((enc3 & 3) << 6) | enc4;
output = output + String.fromCharCode(chr1);
if (enc3 != 64) {
output = output + String.fromCharCode(chr2);
}
if (enc4 != 64) {
output = output + String.fromCharCode(chr3);
}
}
output = Base64._utf8_decode(output);
return output;
}

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