From a1f84b7bd068e4ca53b6736402e080892ac72b4a Mon Sep 17 00:00:00 2001
From: Lama Alosaimi <lama.d.alosaimi@gmail.com>
Date: Tue, 4 Oct 2022 13:01:22 +0300
Subject: [PATCH] feature: payload to Query String added a sharedflow to move
 fields from client's json payload to target's query string since the request
 body gets encrypted in the https packet unlike the url

---
 .../SF-PayloadToQueryString/README.md         | 32 +++++++++++++++++++
 .../JS-ExtractPayloadAndAssignQueryString.xml |  6 ++++
 .../JS-ExtractPayloadAndAssignQueryString.js  | 24 ++++++++++++++
 .../sharedflowbundle/sharedflows/default.xml  |  6 ++++
 4 files changed, 68 insertions(+)
 create mode 100755 sample-sharedflows/SF-PayloadToQueryString/README.md
 create mode 100755 sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/policies/JS-ExtractPayloadAndAssignQueryString.xml
 create mode 100755 sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/resources/jsc/JS-ExtractPayloadAndAssignQueryString.js
 create mode 100755 sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/sharedflows/default.xml

diff --git a/sample-sharedflows/SF-PayloadToQueryString/README.md b/sample-sharedflows/SF-PayloadToQueryString/README.md
new file mode 100755
index 00000000..67769a44
--- /dev/null
+++ b/sample-sharedflows/SF-PayloadToQueryString/README.md
@@ -0,0 +1,32 @@
+## USAGE
+
+**create flow callout policy in your proxy**
+
+```xml
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<FlowCallout async="false" continueOnError="false" enabled="true" name="FC-PayloadToQueryString">
+    <DisplayName>FC-PayloadToQueryString</DisplayName>
+    <FaultRules/>
+    <Properties/>
+    <Parameters>
+        <Parameter name="SF-PayloadToQueryStrin.fields">["name"]</Parameter>
+    </Parameters>
+    <SharedFlowBundle>SF-PayloadToQueryString</SharedFlowBundle>
+</FlowCallout>
+```
+
+---
+
+## Call the proxy
+
+```sh
+curl --location --request POST {{proxyURL}} \
+--header 'Content-Type: application/json' \
+--data-raw '{
+    "name": "lama",
+    "gender": "female",
+    "age": 26
+}'
+```
+
+
diff --git a/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/policies/JS-ExtractPayloadAndAssignQueryString.xml b/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/policies/JS-ExtractPayloadAndAssignQueryString.xml
new file mode 100755
index 00000000..2b8ff28e
--- /dev/null
+++ b/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/policies/JS-ExtractPayloadAndAssignQueryString.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<Javascript async="false" continueOnError="false" enabled="true" timeLimit="200" name="JS-ExtractPayloadAndAssignQueryString">
+    <DisplayName>JS-ExtractPayloadAndAssignQueryString</DisplayName>
+    <Properties/>
+    <ResourceURL>jsc://JS-ExtractPayloadAndAssignQueryString.js</ResourceURL>
+</Javascript>
diff --git a/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/resources/jsc/JS-ExtractPayloadAndAssignQueryString.js b/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/resources/jsc/JS-ExtractPayloadAndAssignQueryString.js
new file mode 100755
index 00000000..47b0323b
--- /dev/null
+++ b/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/resources/jsc/JS-ExtractPayloadAndAssignQueryString.js
@@ -0,0 +1,24 @@
+if(request.content !== null || request.content !== ''){
+    try{
+        var fields = JSON.parse(context.getVariable("SF-PayloadToQueryStrin.fields"));
+        payload = JSON.parse(request.content);
+        
+        for(var i in fields){
+            var field = fields[i];
+            if(payload[field] !== undefined){
+                print("[INFO] found key: " + field);
+                context.setVariable("request.queryparam."+field, payload[field]);
+                delete payload[field];
+            }
+            else{
+                print("[WARN] didn't find key: " + field);
+            }
+        }
+    }catch(e){
+        print("[ERROR] Exception Occured:\t" + e);
+    }
+    finally{
+        print("[INFO] Assigning the new payload to the request object");
+        context.setVariable("request.content", JSON.stringify(payload));
+    }
+}
\ No newline at end of file
diff --git a/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/sharedflows/default.xml b/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/sharedflows/default.xml
new file mode 100755
index 00000000..d6c8aab4
--- /dev/null
+++ b/sample-sharedflows/SF-PayloadToQueryString/sharedflowbundle/sharedflows/default.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<SharedFlow name="default">
+    <Step>
+        <Name>JS-ExtractPayloadAndAssignQueryString</Name>
+    </Step>
+</SharedFlow>
\ No newline at end of file