├── Gemfile
├── Gemfile.lock
├── README.md
└── photo_friend_finder.rb


/Gemfile:
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1 | source 'https://rubygems.org'
2 | 
3 | gem 'nokogiri'
4 | gem 'koala'


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/Gemfile.lock:
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 1 | GEM
 2 |   remote: https://rubygems.org/
 3 |   specs:
 4 |     addressable (2.4.0)
 5 |     faraday (0.9.2)
 6 |       multipart-post (>= 1.2, < 3)
 7 |     koala (2.3.0)
 8 |       addressable
 9 |       faraday
10 |       multi_json
11 |     mini_portile2 (2.0.0)
12 |     multi_json (1.12.1)
13 |     multipart-post (2.0.0)
14 |     nokogiri (1.6.7.2)
15 |       mini_portile2 (~> 2.0.0.rc2)
16 | 
17 | PLATFORMS
18 |   ruby
19 | 
20 | DEPENDENCIES
21 |   koala
22 |   nokogiri
23 | 
24 | BUNDLED WITH
25 |    1.10.6
26 | 


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/README.md:
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 1 | To use the script:
 2 | 
 3 | ```
 4 | git clone https://github.com/bknarendra/fb_photo_friend_finder.git
 5 | cd fb_photo_friend_finder
 6 | bundle install
 7 | ```
 8 | 
 9 | You need to get the FB access token to allow uploading temporary photos to FB. Use the [Graph API Explorer](https://developers.facebook.com/tools/explorer#_=_) to get a token that has the permissions `publish_actions` and `user_photos`.  Copy and paste the access token in the script.
10 | 
11 | Next you need the FB cookies.
12 | - Open facebook.com in Chrome and login.
13 | - Then open Developer Tools and switch to Network Tab.
14 | - Reload the page.
15 | - Right click on any request which goes to facebook.com and select Copy as cURL option. It will copy that request as a cURL command.
16 | - Paste it in some editor. It will look something like this.
17 | curl 'https://www.facebook.com/photo.php?fbid=&set=' -H 'accept-encoding: gzip, deflate, sdch, br' -H 'accept-language: en-US,en;q=0.8' -H 'authority: www.facebook.com' -H 'cookie: cookies' --compressed
18 | - Copy the cookie block (everything in '' which has cookie written)
19 | - Paste that in the script and save.
20 | 
21 | To run the script.
22 | 
23 | ```
24 | ruby photo_friend_finder.rb "path to the photo"
25 | ```
26 | 


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/photo_friend_finder.rb:
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 1 | require 'koala'
 2 | require 'json'
 3 | require 'nokogiri'
 4 | 
 5 | def flatten_nested_hash(content)
 6 |   content.flat_map{|k, v| [k, *(v.respond_to?(:flat_map) ? flatten_nested_hash(v): v)]}
 7 | end
 8 | 
 9 | 
10 | ACCESS_TOKEN="your access token goes here"
11 | COOKIES = "your FB cookies go here"
12 | 
13 | 
14 | @graph = Koala::Facebook::API.new(ACCESS_TOKEN)
15 | 
16 | file = ARGV[0]
17 | puts "uploading file: #{file}"
18 | photo = @graph.put_picture(file, {:published => false, :temporary=> true})
19 | puts "upload response: #{photo}"
20 | puts "waiting for photo to get processed"
21 | found = false
22 | 
23 | 3.times do
24 |     sleep(3)
25 |     puts "calling api to get friends in photo"
26 |     cmd = "curl -s 'https://www.facebook.com/ajax/pagelet/generic.php/PhotoViewerInitPagelet?dpr=2&data=%7B%22fbid%22%3A%22#{photo['id']}%22%2C%22data_ft%22%3A%7B%7D%7D&__a=1&__req=jsonp_4&__pc=PHASED%3ADEFAULT' -H '#{COOKIES}'"
27 |     response = %x(#{cmd})
28 |     content = JSON.parse(response.sub(/^[^{]*/,''))
29 |     content = flatten_nested_hash(content)
30 |     content = content.select{|x| x if x.respond_to?(:index) && x.index("fbPhotosPhotoTagboxes")}[0]
31 |     content = Nokogiri::HTML(content)
32 |     people_in_photo = content.css(".fbPhotosPhotoTagboxBase.faceBox").length
33 |     identified_friends_in_photo = content.css(".faceboxSuggestion").map{|x| x.attributes["data-text"].value}
34 |     if people_in_photo > 0
35 |         puts "Found #{people_in_photo} people in the photo"
36 |         puts "identified people in the photo: #{identified_friends_in_photo * ", "}"
37 |         found = true
38 |         break
39 |     end
40 | end
41 | 
42 | puts "tried 3 times couldn't find any friends in photo. Some problem." if !found
43 | puts "deleting photo. response : #{@graph.delete_object(photo["id"])}"


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