Add Automated Google Image Downloader #35

README.rst

@@ -20,6 +20,7 @@ hackr currently supports the following features:
 - Send web requests (GET, POST, PUT)
 - Parse data in JSON
 - Send Emails
+- Automatically Download Images for Keyword from Google Image Search
 
 hackr officially supports Python 2.7 currently.
 
@@ -80,7 +81,11 @@ Send Emails
     >>> #Enter your GMAIL email address and password in the parameters email, and password.
     >>> hackr.actions.email("Hey there", email="foo@bar.com", password="foobar", to="bar@foo.com", subject="Foo Bar")
 
-
+Download Images from Google Search
+    >>> import hackr
+    >>> hackr.image_downloader.get_google_images(search_keyword=["foo"], keyword["high resolution"])
+
+
 Contribution Guidelines
 -----------------------
 

hackr/__init__.py

@@ -7,3 +7,4 @@
 from . import web
 from . import actions
 from . import image
+from . import image_downloader

hackr/image_downloader.py

@@ -0,0 +1,169 @@
+
+
+# coding: utf-8
+
+# In[ ]:
+
+#Searching and Downloading Google Images/Image Links
+
+#Import Libraries
+
+#coding: UTF-8
+
+import time       #Importing the time library to check the time of code execution
+import sys    #Importing the System Library
+import os
+import urllib2
+
+
+def get_google_images(search_keyword=["Test"], keywords=["high resolution"]):
+    t0 = time.time()   #start the timer
+
+    #Download Image Links
+    i= 0
+    while i<len(search_keyword):
+        items = []
+        iteration = "Item no.: " + str(i+1) + " -->" + " Item name = " + str(search_keyword[i])
+        print (iteration)
+        print ("Evaluating...")
+        search_keywords = search_keyword[i]
+        search = search_keywords.replace(' ','%20')
+
+         #make a search keyword  directory
+        try:
+            os.makedirs(search_keywords)
+        except OSError, e:
+            if e.errno != 17:
+                raise   
+            # time.sleep might help here
+            pass
+
+        j = 0
+        while j<len(keywords):
+            pure_keyword = keywords[j].replace(' ','%20')
+            url = 'https://www.google.com/search?q=' + search + pure_keyword + '&espv=2&biw=1366&bih=667&site=webhp&source=lnms&tbm=isch&sa=X&ei=XosDVaCXD8TasATItgE&ved=0CAcQ_AUoAg'
+            raw_html =  (download_page(url))
+            # time.sleep(0.1)
+            items = items + (_images_get_all_items(raw_html))
+            j = j + 1
+        #print ("Image Links = "+str(items))
+        print ("Total Image Links = "+str(len(items)))
+        print ("\n")
+
+
+        #This allows you to write all the links into a test file. This text file will be created in the same directory as your code. You can comment out the below 3 lines to stop writing the output to the text file.
+        info = open('output.txt', 'a')        #Open the text file called database.txt
+        info.write(str(i) + ': ' + str(search_keyword[i-1]) + ": " + str(items) + "\n\n\n")         #Write the title of the page
+        info.close()                            #Close the file
+
+        t1 = time.time()    #stop the timer
+        total_time = t1-t0   #Calculating the total time required to crawl, find and download all the links of 60,000 images
+        print("Total time taken: "+str(total_time)+" Seconds")
+        print ("Starting Download...")
+
+        ## To save imges to the same directory
+        # IN this saving process we are just skipping the URL if there is any error
+
+        k=0
+        errorCount=0
+        while(k<len(items)):
+            from urllib2 import Request,urlopen
+            from urllib2 import URLError, HTTPError
+
+            try:
+                req = Request(items[k], headers={"User-Agent": "Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.27 Safari/537.17"})
+                response = urlopen(req,None,15)
+                output_file = open(search_keywords+"/"+str(k+1)+".jpg",'wb')
+
+                data = response.read()
+                output_file.write(data)
+                response.close();
+
+                print("completed ====> "+str(k+1))
+
+                k=k+1;
+
+            except IOError:   #If there is any IOError
+
+                errorCount+=1
+                print("IOError on image "+str(k+1))
+                k=k+1;
+
+            except HTTPError as e:  #If there is any HTTPError
+
+                errorCount+=1
+                print("HTTPError"+str(k))
+                k=k+1;
+            except URLError as e:
+
+                errorCount+=1
+                print("URLError "+str(k))
+                k=k+1;
+
+        i = i+1
+
+    print("\n")
+    print("Everything downloaded!")
+    print("\n"+str(errorCount)+" ----> total Errors")
+
+
+#Downloading entire Web Document (Raw Page Content)
+def download_page(url):
+    version = (3,0)
+    cur_version = sys.version_info
+    if cur_version >= version:     #If the Current Version of Python is 3.0 or above
+        import urllib.request    #urllib library for Extracting web pages
+        try:
+            headers = {}
+            headers['User-Agent'] = "Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36"
+            req = urllib.request.Request(url, headers = headers)
+            resp = urllib.request.urlopen(req)
+            respData = str(resp.read())
+            return respData
+        except Exception as e:
+            print(str(e))
+    else:                        #If the Current Version of Python is 2.x
+        import urllib2
+        try:
+            headers = {}
+            headers['User-Agent'] = "Mozilla/5.0 (X11; Linux i686) AppleWebKit/537.17 (KHTML, like Gecko) Chrome/24.0.1312.27 Safari/537.17"
+            req = urllib2.Request(url, headers = headers)
+            response = urllib2.urlopen(req)
+            page = response.read()
+            return page
+        except:
+            return"Page Not found"
+
+
+#Finding 'Next Image' from the given raw page
+def _images_get_next_item(s):
+    start_line = s.find('rg_di')
+    if start_line == -1:    #If no links are found then give an error!
+        end_quote = 0
+        link = "no_links"
+        return link, end_quote
+    else:
+        start_line = s.find('"class="rg_meta"')
+        start_content = s.find('"ou"',start_line+1)
+        end_content = s.find(',"ow"',start_content+1)
+        content_raw = str(s[start_content+6:end_content-1])
+        return content_raw, end_content
+
+
+#Getting all links with the help of '_images_get_next_image'
+def _images_get_all_items(page):
+    items = []
+    while True:
+        item, end_content = _images_get_next_item(page)
+        if item == "no_links":
+            break
+        else:
+            items.append(item)      #Append all the links in the list named 'Links'
+            # time.sleep(0.1)        #Timer could be used to slow down the request for image downloads
+            page = page[end_content:]
+    return items
+
+
+
+if __name__ == "__main__":
+    get_google_images(["Ball"], ["high resolution"])

requirements.txt

@@ -6,4 +6,3 @@ pillow
 xmljson
 sphinx_rtd_theme
 matplotlib==2.0.2
-pytest