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Use 'net-ftp-list' gem to parse ftp directory listing.

It also parses non-unix ftp servers, which have a different list format.

Guilherme J. Tramontina 9 anni fa
parent
58e9016255
commit
a2243590f6
4 ha cambiato i file con 50 aggiunte e 33 eliminazioni
Mostra Diff Stats
  1. 1 0
      Gemfile
  2. 2 0
      Gemfile.lock
  3. 6 24
      app/models/agents/ftpsite_agent.rb
  4. 41 9
      spec/models/agents/ftpsite_agent_spec.rb

+ 1 - 0
Gemfile
Vedi File 

@@ -59,6 +59,7 @@ gem 'faraday', '~> 0.9.0'
59 59 
 gem 'faraday_middleware'
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 gem 'typhoeus', '~> 0.6.3'
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 gem 'nokogiri', '~> 1.6.1'
62 
+gem 'net-ftp-list', '~> 3.2.8'
62 63
63 64 
 gem 'wunderground', '~> 1.2.0'
64 65 
 gem 'forecast_io', '~> 2.0.0'

+ 2 - 0
Gemfile.lock
Vedi File 

@@ -188,6 +188,7 @@ GEM
188 188 
     multipart-post (2.0.0)
189 189 
     mysql2 (0.3.16)
190 190 
     naught (1.0.0)
191 
+    net-ftp-list (3.2.8)
191 192 
     nokogiri (1.6.2.1)
192 193 
       mini_portile (= 0.6.0)
193 194 
     oauth2 (0.9.4)
 
@@ -391,6 +392,7 @@ DEPENDENCIES
391 392 
   liquid (~> 2.6.1)
392 393 
   mqtt
393 394 
   mysql2 (~> 0.3.16)
395 
+  net-ftp-list (~> 3.2.8)
394 396 
   nokogiri (~> 1.6.1)
395 397 
   pg
396 398 
   protected_attributes (~> 1.0.8)

+ 6 - 24
app/models/agents/ftpsite_agent.rb
Vedi File 

@@ -1,4 +1,5 @@
1 1 
 require 'net/ftp'
2 
+require 'net/ftp/list'
2 3 
 require 'uri'
3 4 
 require 'time'
4 5 
 
@@ -105,34 +106,15 @@ module Agents
105 106 
         # commands during iteration.
106 107 
         list = ftp.list('-a')
107 108
108 
-        month2year = {}
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-
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         list.each do |line|
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-          mon, day, smtn, rest = line.split(' ', 9)[5..-1]
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-
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-          # Remove symlink target part if any
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-          filename = rest[/\A(.+?)(?:\s+->\s|\z)/, 1]
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-
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+          entry = Net::FTP::List.parse line
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+          filename = entry.basename
112 
+          mtime = Time.parse(entry.mtime.to_s).utc
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+
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           patterns.any? { |pattern|
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             File.fnmatch?(pattern, filename)
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           } or next
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-          case smtn
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-          when /:/
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-            if year = month2year[mon]
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-              mtime = Time.parse("#{mon} #{day} #{year} #{smtn} GMT")
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-            else
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-              log "Getting mtime of #{filename}"
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-              mtime = ftp.mtime(filename)
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-              month2year[mon] = mtime.year
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-            end
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-          else
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-            # Do not bother calling MDTM for old files.  Losing the
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-            # time part only makes a timestamp go backwards, meaning
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-            # that it will trigger no new event.
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-            mtime = Time.parse("#{mon} #{day} #{smtn} GMT")
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-          end
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-
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           after < mtime or next
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           yield filename, mtime
 
@@ -193,7 +175,7 @@ module Agents
193 175 
         found_entries[filename]
194 176 
       }.each { |filename|
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         create_event :payload => {
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-          'url' => (base_uri + filename).to_s,
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+          'url' => "#{base_uri}#{filename}",
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           'filename' => filename,
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           'timestamp' => found_entries[filename],
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         }

+ 41 - 9
spec/models/agents/ftpsite_agent_spec.rb
Vedi File 

@@ -7,19 +7,23 @@ describe Agents::FtpsiteAgent do
7 7 
       @site = {
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         'expected_update_period_in_days' => 1,
9 9 
         'url' => "ftp://ftp.example.org/pub/releases/",
10 
-        'patterns' => ["example-*.tar.gz"],
10 
+        'patterns' => ["example*.tar.gz"],
11 11 
       }
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       @checker = Agents::FtpsiteAgent.new(:name => "Example", :options => @site, :keep_events_for => 2)
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       @checker.user = users(:bob)
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       @checker.save!
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-      stub(@checker).each_entry.returns { |block|
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-        block.call("example-latest.tar.gz", Time.parse("2014-04-01T10:00:01Z"))
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-        block.call("example-1.0.tar.gz",    Time.parse("2013-10-01T10:00:00Z"))
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-        block.call("example-1.1.tar.gz",    Time.parse("2014-04-01T10:00:00Z"))
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-      }
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     end
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     describe "#check" do
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+
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+      before do
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+        stub(@checker).each_entry.returns { |block|
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+          block.call("example latest.tar.gz", Time.parse("2014-04-01T10:00:01Z"))
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+          block.call("example-1.0.tar.gz",    Time.parse("2013-10-01T10:00:00Z"))
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+          block.call("example-1.1.tar.gz",    Time.parse("2014-04-01T10:00:00Z"))
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+        }
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+      end
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+
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       it "should validate the integer fields" do
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         @checker.options['expected_update_period_in_days'] = "nonsense"
25 29 
         lambda { @checker.save! }.should raise_error;
 
@@ -33,7 +37,7 @@ describe Agents::FtpsiteAgent do
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           known_entries.sort_by(&:last).should == [
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             ["example-1.0.tar.gz",    "2013-10-01T10:00:00Z"],
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             ["example-1.1.tar.gz",    "2014-04-01T10:00:00Z"],
36 
-            ["example-latest.tar.gz", "2014-04-01T10:00:01Z"],
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+            ["example latest.tar.gz", "2014-04-01T10:00:01Z"],
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           ]
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         }
39 43 
 
@@ -46,7 +50,7 @@ describe Agents::FtpsiteAgent do
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         lambda { @checker.check }.should_not change { Event.count }
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         stub(@checker).each_entry.returns { |block|
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-          block.call("example-latest.tar.gz", Time.parse("2014-04-02T10:00:01Z"))
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+          block.call("example latest.tar.gz", Time.parse("2014-04-02T10:00:01Z"))
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51 55 
           # In the long list format the timestamp may look going
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           # backwards after six months: Oct 01 10:00 -> Oct 01 2013
 
@@ -62,7 +66,7 @@ describe Agents::FtpsiteAgent do
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             ["example-1.0.tar.gz",    "2013-10-01T00:00:00Z"],
63 67 
             ["example-1.1.tar.gz",    "2014-04-01T10:00:00Z"],
64 68 
             ["example-1.2.tar.gz",    "2014-04-02T10:00:00Z"],
65 
-            ["example-latest.tar.gz", "2014-04-02T10:00:01Z"],
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+            ["example latest.tar.gz", "2014-04-02T10:00:01Z"],
66 70 
           ]
67 71 
         }
68 72 
 
@@ -75,5 +79,33 @@ describe Agents::FtpsiteAgent do
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         lambda { @checker.check }.should_not change { Event.count }
76 80 
       end
77 81 
     end
82 
+
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+    describe "#each_entry" do
84 
+      before do
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+        stub.any_instance_of(Net::FTP).list.returns [ # Windows format
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+          "04-02-14  10:01AM            288720748 example latest.tar.gz",
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+          "04-01-14  10:05AM            288720710 no-match-example.tar.gz"
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+        ]
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+        stub(@checker).open_ftp.yields Net::FTP.new
90 
+      end
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+
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+      it "filters out files that don't match the given format" do
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+        entries = []
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+        @checker.each_entry { |a, b| entries.push [a, b] }
95 
+
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+        entries.size.should == 1
97 
+        filename, mtime = entries.first
98 
+        filename.should == 'example latest.tar.gz'
99 
+        mtime.should == '2014-04-02T10:01:00Z'
100 
+      end
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+
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+      it "filters out files that are older than the given date" do
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+        @checker.options['after'] = '2015-10-21'
104 
+        entries = []
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+        @checker.each_entry { |a, b| entries.push [a, b] }
106 
+        entries.size.should == 0
107 
+      end
108 
+    end
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+
78 110 
   end
79 111 
 end