It’s not a blog, It’s a feature

import java.io.IOException
import java.security.MessageDigest
import java.security.NoSuchAlgorithmException
import java.util.ArrayList
import java.util.Date
import java.util.Hashtable
import javax.imageio.ImageIO
import org.w3c.dom.Element
import org.w3c.dom.NodeList
import java.io.File;
import java.net.*;
import java.io.IOException;
import org.xml.sax.SAXException;
public class FlickrAPI {
String nsid = ""

private String secret = "your secret"

/**
* api key
*/
private String akey = "your key goes here"

private String sig = ""

private String url = ""

String authToken = ""

private String frob = ""

private String restString = "http://flickr.com/services/rest/?method="

public FlickrAPI() {
println("Created FlickerAPI")
}

public void authNewUser() {
constructFrobUrl()
createAuthURL()
getToken()
}
private String constructUrl(String flickrMethod,Map m,boolean authCall =false){
String s= this.restString+flickrMethod+"&api_key="+this.akey
m.each{key,value->
s+=key+value
}
if(authCall){s+="&auth_token=${this.authToken}&api_sig=${this.sig}"}
return s
}
def mapFlickrUser(){

}
//if bool is true then this is a Authenticated call
public void setSig(String method,boolean bool = false){
String sigString="${this.secret}api_key${this.akey}"
try {
if(bool){
sigString +="auth_token${this.authToken}${method}"
println "Sig is true"
}else{sigString+=method}
} catch (NoSuchAlgorithmException e) {
e.printStackTrace()
}
println "sig is " +sigString
this.sig = calcMD5(sigString)
}

def jupload(String filePath,Map parameters=[:]){
println("parameters ${parameters.inspect()}")
def paramMessages=[]
int paramLength=0

if(parameters==[:]){
this.sig = calcMD5("${this.secret}api_key${this.akey}auth_token${this.authToken}")
}else{
//sort them and add them to the signature
String p=""
parameters.keySet().toList().sort().each{key->
//if the key ='tags' make it into space separated string
p+= "${key}${parameters[key]}"
paramMessages.add(addParameter([key,parameters[key]]) )
}
this.sig = calcMD5("${this.secret}api_key${this.akey}auth_token${this.authToken}${p}")
paramMessages.each{stringMsg->paramLength+=stringMsg.length()}
}

File file=new File(filePath)
String CrLf = "\r\n";
def url = new URL("http://api.flickr.com/services/upload/")
//def connection = url.openConnection()
HttpURLConnection conn = url.openConnection()
def is = new FileInputStream(file)
def flength= file.length()
byte[] imgData= new byte[(int)flength]

int offset = 0;
int numRead = 0;
while (offset < imgData.length && (numRead=is.read(imgData, offset, imgData.length-offset)) >= 0) {
offset += numRead;
}

// Ensure all the bytes have been read in
if (offset < imgData.length) {
throw new IOException("The file was not completely read: "+file.getName());
}
println "filesize ->${imgData.length}"
// Close the input stream, all file contents are in the bytes variable
is.close();
String message01=addParameter(['api_key',this.akey])
String message02 = addParameter(['auth_token',this.authToken])
String message03 = addParameter(['api_sig',this.sig])

String message1 = "";
message1 += "---------------------------6d72u458s1587" + CrLf;
message1 += "Content-Disposition: form-data; name=\"photo\"; filename=\""+filePath+"\"" + CrLf;
message1 += "Content-Type: image/jpeg" + CrLf;
message1 += CrLf;

// the image is sent between the messages in the multipart message.

String message2 = "";
message2 += CrLf + "---------------------------6d72u458s1587--" + CrLf;

def totalLength = String.valueOf((message01.length() + message02.length() + message03.length() + message1.length() + message2.length() + imgData.length+ paramLength))
conn.setRequestMethod("POST")
conn.setRequestProperty("Content-Type", "multipart/form-data; boundary=-------------------------6d72u458s1587");
conn.setRequestProperty("Host", "api.flickr.com");
conn.setRequestProperty("Content-Length",totalLength );
conn.setDoOutput(true)

System.out.println("open os");
def os = conn.getOutputStream();

System.out.println(message01);
os.write(message01.getBytes());

System.out.println(message02);
os.write(message02.getBytes());
//write the params here before the image
paramMessages.each{msg->os.write(msg.getBytes())}

System.out.println(message03);
os.write(message03.getBytes());

System.out.println(message1);
os.write(message1.getBytes());
os.write(imgData,0 ,imgData.length)

os.write(message2.getBytes());

println "end writing"
os.flush()
os.close()

conn.connect()
conn.disconnect()
println conn.content.text

}
//[name value]
private String addParameter(List para){
String CrLf = "\r\n";
String message01 = "";
message01 += "---------------------------6d72u458s1587" + CrLf;
message01 += "Content-Disposition: form-data; name=\"${para[0]}\"" + CrLf;
message01 += CrLf;
message01 += para[1] + CrLf;
return message01
}

public void constructFrobUrl() {
setSig("methodflickr.auth.getFrob")
this.url = "http://flickr.com/services/rest/?method=flickr.auth.getFrob&api_key=${this.akey}&api_sig=${this.sig}"
println("here is url-> ${this.url}")
def node = new XmlParser().parse(this.url)//dom.parseXML("frob")
this.frob = node['frob'].text().toString()
println("frob =>${this.frob}\n\n")
}

/**
* This function will calculate an MD5 sum of String Signature and return
* the String value of the Hash via strBuildup
*
* @param signature
* @throws NoSuchAlgorithmException
* @returns strBuildup
*/
private String calcMD5(String signature) throws NoSuchAlgorithmException {
// get Instance from Java Security Classes
String strBuildup = ""
MessageDigest md5 = MessageDigest.getInstance("MD5")
byte[] md5summe = md5.digest(signature.getBytes())
for (int k = 0; k < md5summe.length; k++) {
byte b = md5summe[k]
String temp = Integer.toHexString(b & 0xFF)
/*
* toHexString has the side effect of making stuff like 0x0F only
* one char F(when it should be '0F') so I check the length of
* string
*/
if (temp.length() < 2) {
temp = "0" + temp
}
temp = temp.toUpperCase()
strBuildup += temp
}
return strBuildup
}

/**
* get the authentication token
*
* @return
*/
public checkToken(){
setSig("methodflickr.auth.checkToken",true)
this.url=constructUrl('flickr.auth.checkToken',[:],true)
println(this.url)
def node = new XmlParser().parse(this.url)
println("done parsing check Token INFO ===>${node.children()}")
}
public void getToken() {
println("Entering getToken\n\n")
setSig("frob${this.frob}methodflickr.auth.getToken")
this.url = "${this.restString}flickr.auth.getToken&api_key=${this.akey}&frob=${this.frob}&api_sig=${this.sig}"
//println(this.url)
def node = new XmlParser().parse(this.url)
//need to get the nsid and the authtoken
this.authToken = node['auth']['token'].text()
this.nsid = node['auth']['user'].'@nsid'.text()
println "token is ${this.authToken}"
println("Token =>${node['auth']['token'].text()}")
println("nsid =>${node['auth']['user'].'@nsid'.text()}")
println("perms =>${node['auth']['perms'].text()}")

// set user nsid
println("Exiting GET Token")
}

public void createAuthURL() {
setSig("frob${this.frob}permsdelete")
String cmd = "open http://flickr.com/services/auth/?api_key="+ this.akey + "&perms=delete" + "&frob=" + this.frob + "&api_sig=" + this.sig
try {
Process proc = cmd.execute()
proc.waitForOrKill(10000)
sleep(2000)
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace()
}
}

/***************************************************************************
* AUTH
**************************************************************************/
/***************************************************************************
* ACTIVITIES
**************************************************************************/
//POLL ONLY ONCE AN HOUR!!!!!
public activityGetUserComments(){
setSig("methodflickr.activity.userComments",true)
this.url=constructUrl('flickr.activity.userComments',[:],true)
println(this.url)
def node = new XmlParser().parse(this.url)
println("done parsing GET user Comments INFO ===>${node.children()}")
}
/***************************************************************************
* BLOGS
**************************************************************************/
/***************************************************************************
* CONTACTS
**************************************************************************/
public void contactsGetList(){
setSig("methodflickr.contacts.getList",true)
this.url=constructUrl('flickr.contacts.getList',[:],true)
println(this.url)
def node = new XmlParser().parse(this.url)
println("done parsing GET contact List INFO ===>${node.children()}")
}
/***************************************************************************
* FAVORITES
**************************************************************************/
/***************************************************************************
* GROUPS
**************************************************************************/
/***************************************************************************
* GROUP POOLS
**************************************************************************/

/***************************************************************************
* INTERESTINGNESS
**************************************************************************/

/***************************************************************************
* PHOTOS
*what if a return back an array of pictures?
**************************************************************************/
def photosGetNotInSet(){
List piclist=[]
setSig("methodflickr.photos.getNotInSet",true)
this.url=constructUrl('flickr.photos.getNotInSet',[:],true)
println(this.url)
def node = new XmlParser().parse(this.url)
println("done parsing GET Not in Set INFO ===>${node.children()}\n\n\n")
/* test=f.photosGetNotInSet()
println test.photos.each{it-> it.each{p-> println p}} //list of nodes

test.photos.photo[3].attributes()
test.photos.photo.each{it-> println it.attribute('isfamily')} //gets the individual attr
test.photos.photo.each{it-> picList.push(new Picture(it))} //push a node into picture contructor

*/

return node
}

def photosGetContactsPhotos(){
setSig("methodflickr.photos.getContactsPhotos",true)
this.url=constructUrl('flickr.photos.getContactsPhotos',[:],true)
def node = new XmlParser().parse(this.url)
return node
}

def photosGetRecentlyUploaded() {
setSig("methodflickr.photos.getRecent",true)
//this.url = "flickr.photos.getRecent&api_key",[:],true)
this.url= constructUrl('flickr.photos.getRecent',[:],true)
def node = new XmlParser().parse(this.url)
println("done parsing RecentPhotos ===>${node.children()}")
return node
}
public void photosGetInfo(){

}
/***************************************************************************
* PEOPLE
**************************************************************************/
def contactsGetList(){
setSig("methodflickr.contacts.getList",true)
this.url=constructUrl('flickr.contacts.getList',[:],true)
def node = new XmlParser().parse(this.url)
//println("done parsing GET contact List INFO ===>${node.children()}")
return node
}
def peopleGetUploadStatus(){
setSig("methodflickr.people.getUploadStatus",true)
this.url=constructUrl('flickr.people.getUploadStatus',[:],true)
def node = new XmlParser().parse(this.url)
println("done parsing GET upload Status INFO ===>${node.children()}")
return node
}
def peopleGetPublicPhotos() {
setSig("methodflickr.people.getPublicPhotosuser_id${this.nsid}",true)
this.url=constructUrl('flickr.people.getPublicPhotos',['&user_id=':"${this.nsid}"],true)
def node = new XmlParser().parse(this.url)
//def peepsInfo = node['auth']['peeps'].text()
println("done parsing GET Public Photos ===>${node.children()}")
return node
}
def peopleGetPeopleInfo() {
setSig("methodflickr.people.getInfouser_id${this.nsid}",true)
this.url=constructUrl('flickr.people.getInfo',['&user_id=':"${this.nsid}"],true)
def node = new XmlParser().parse(this.url)
//def peepsInfo = node['auth']['peeps'].text()
return node
}

/********************************************
* photosets
************************/
def photosetsGetList(String uid){
setSig("methodflickr.photosets.getListuser_id${uid}",true)
this.url=constructUrl('flickr.photosets.getList',['&user_id=':"${uid}"],true)
def node = new XmlParser().parse(this.url)
//def peepsInfo = node['auth']['peeps'].text()
return node

}
def photosetsGetPhotos(String setID){
setSig("methodflickr.photosets.getPhotosphotoset_id${setID}",true)
this.url=constructUrl('flickr.photosets.getPhotos',['&photoset_id=':"${setID}"],true)
println this.url
def node = new XmlParser().parse(this.url)
//def peepsInfo = node['auth']['peeps'].text()
return node

}
/**
Upload photos

http://api.flickr.com/services/upload/

*/
//get the picture when supplied the proper args
//http://farm{farm-id}.static.flickr.com/{server-id}/{id}_{secret}_[mstb].jpg

public String getPicture(String farmId, String serverId, String photoid, String secret,String size ="s"){
return "http://farm${farmId}.static.flickr.com/${serverId}/${photoid}_${secret}_${size}.jpg"

def downloadedfile = request.getFile('imagefile')
def pictureInstance = new Picture(params)
def imageTool = new ImageTool()

if(downloadedfile && pictureInstance.save()){
String imagepath = grailsAttributes.getApplicationContext().getResource("images/").getFile().toString() + File.separatorChar + "${pictureInstance.id}.jpg"
downloadedfile.transferTo(new File(imagepath))

imageTool.load(imagepath)
imageTool.thumbnail(140)