Docs and examples to top level

1 files changed, 27 insertions, 0 deletions

diff --git a/examples/iframe_injector.py b/examples/iframe_injector.py
new file mode 100644
index 00000000..fc38b136
--- /dev/null
+++ b/examples/iframe_injector.py
@@ -0,0 +1,27 @@
+# Usage: mitmdump -s "iframe_injector.py url"
+# (this script works best with --anticache)
+from bs4 import BeautifulSoup
+from mitmproxy.models import decoded
+
+
+def start(context, argv):
+    if len(argv) != 2:
+        raise ValueError('Usage: -s "iframe_injector.py url"')
+    context.iframe_url = argv[1]
+
+
+def response(context, flow):
+    if flow.request.host in context.iframe_url:
+        return
+    with decoded(flow.response):  # Remove content encoding (gzip, ...)
+        html = BeautifulSoup(flow.response.content)
+        if html.body:
+            iframe = html.new_tag(
+                "iframe",
+                src=context.iframe_url,
+                frameborder=0,
+                height=0,
+                width=0)
+            html.body.insert(0, iframe)
+            flow.response.content = str(html)
+            context.log("Iframe inserted.")