refactor(router): infer ip address for online mandates from request headers if absent (#1419)

crates/api_models/src/payments.rs

@@ -432,7 +432,7 @@ pub enum AcceptanceType {
 pub struct OnlineMandate {
     /// Ip address of the customer machine from which the mandate was created
     #[schema(value_type = String, example = "123.32.25.123")]
-    pub ip_address: Secret<String, pii::IpAddress>,
+    pub ip_address: Option<Secret<String, pii::IpAddress>>,
     /// The user-agent of the customer's browser
     pub user_agent: String,
 }

crates/router/src/compatibility/stripe/payment_intents/types.rs

@@ -615,7 +615,7 @@ impl ForeignTryFrom<(Option<MandateOption>, Option<String>)> for Option<payments
                 acceptance_type: payments::AcceptanceType::Online,
                 accepted_at: mandate.accepted_at,
                 online: Some(payments::OnlineMandate {
-                    ip_address: mandate.ip_address.unwrap_or_default(),
+                    ip_address: mandate.ip_address,
                     user_agent: mandate.user_agent.unwrap_or_default(),
                 }),
             }),

crates/router/src/connector/stripe/transformers.rs

@@ -1254,22 +1254,31 @@ impl TryFrom<&types::PaymentsAuthorizeRouterData> for PaymentIntentRequest {
             _ => payment_data,
         };
 
-        let setup_mandate_details =
-            item.request
-                .setup_mandate_details
-                .as_ref()
-                .and_then(|mandate_details| {
-                    mandate_details
-                        .customer_acceptance
-                        .as_ref()?
-                        .online
-                        .as_ref()
-                        .map(|online_details| StripeMandateRequest {
+        let setup_mandate_details = item
+            .request
+            .setup_mandate_details
+            .as_ref()
+            .and_then(|mandate_details| {
+                mandate_details
+                    .customer_acceptance
+                    .as_ref()?
+                    .online
+                    .as_ref()
+                    .map(|online_details| {
+                        Ok::<_, error_stack::Report<errors::ConnectorError>>(StripeMandateRequest {
                             mandate_type: StripeMandateType::Online,
-                            ip_address: online_details.ip_address.to_owned(),
+                            ip_address: online_details
+                                .ip_address
+                                .clone()
+                                .get_required_value("ip_address")
+                                .change_context(errors::ConnectorError::MissingRequiredField {
+                                    field_name: "ip_address",
+                                })?,
                             user_agent: online_details.user_agent.to_owned(),
                         })
-                });
+                    })
+            })
+            .transpose()?;
 
         Ok(Self {
             amount: item.request.amount, //hopefully we don't loose some cents here

crates/router/src/routes/payments/helpers.rs

@@ -3,13 +3,13 @@ use error_stack::ResultExt;
 use crate::{
     core::errors::{self, RouterResult},
     headers, logger,
-    types::{self, api::payments as payment_types},
+    types::{self, api},
     utils::{Encode, ValueExt},
 };
 
 pub fn populate_ip_into_browser_info(
     req: &actix_web::HttpRequest,
-    payload: &mut payment_types::PaymentsRequest,
+    payload: &mut api::PaymentsRequest,
 ) -> RouterResult<()> {
     let mut browser_info: types::BrowserInformation = payload
         .browser_info
@@ -32,29 +32,46 @@ pub fn populate_ip_into_browser_info(
             ip_address: None,
         });
 
-    browser_info.ip_address = browser_info
-        .ip_address
-        .or_else(|| {
-            // Parse the IP Address from the "X-Forwarded-For" header
-            // This header will contain multiple IP addresses for each ALB hop which has
-            // a comma separated list of IP addresses: 'X.X.X.X, Y.Y.Y.Y, Z.Z.Z.Z'
-            // The first one here will be the client IP which we want to retrieve
-            req.headers()
-                .get(headers::X_FORWARDED_FOR)
-                .map(|val| val.to_str())
-                .transpose()
-                .unwrap_or_else(|e| {
-                    logger::error!(error=?e, message="failed to retrieve ip address from X-Forwarded-For header");
-                    None
-                })
-                .and_then(|ips| ips.split(',').next())
-                .map(|ip| ip.parse())
-                .transpose()
-                .unwrap_or_else(|e| {
-                    logger::error!(error=?e, message="failed to parse ip address from X-Forwarded-For");
-                    None
-                })
-        });
+    // Parse the IP Address from the "X-Forwarded-For" header
+    // This header will contain multiple IP addresses for each ALB hop which has
+    // a comma separated list of IP addresses: 'X.X.X.X, Y.Y.Y.Y, Z.Z.Z.Z'
+    // The first one here will be the client IP which we want to retrieve
+    let ip_address_from_header = req.headers()
+        .get(headers::X_FORWARDED_FOR)
+        .map(|val| val.to_str())
+        .transpose()
+        .unwrap_or_else(|e| {
+            logger::error!(error=?e, message="failed to retrieve ip address from X-Forwarded-For header");
+            None
+        })
+        .and_then(|ips| ips.split(',').next());
+
+    browser_info.ip_address = browser_info.ip_address.or_else(|| {
+        ip_address_from_header
+            .map(|ip| ip.parse())
+            .transpose()
+            .unwrap_or_else(|e| {
+                logger::error!(error=?e, message="failed to parse ip address from X-Forwarded-For");
+                None
+            })
+    });
+
+    if let Some(api::MandateData {
+        customer_acceptance:
+            Some(api::CustomerAcceptance {
+                online:
+                    Some(api::OnlineMandate {
+                        ip_address: req_ip, ..
+                    }),
+                ..
+            }),
+        ..
+    }) = &mut payload.mandate_data
+    {
+        *req_ip = req_ip
+            .clone()
+            .or_else(|| ip_address_from_header.map(|ip| masking::Secret::new(ip.to_string())));
+    }
 
     let encoded = Encode::<types::BrowserInformation>::encode_to_value(&browser_info)
         .change_context(errors::ApiErrorResponse::InternalServerError)

crates/router/src/types/api/mandates.rs

@@ -73,7 +73,7 @@ impl MandateResponseExt for MandateResponse {
                 },
                 accepted_at: mandate.customer_accepted_at,
                 online: Some(api::payments::OnlineMandate {
-                    ip_address: mandate.customer_ip_address.unwrap_or_default(),
+                    ip_address: mandate.customer_ip_address,
                     user_agent: mandate.customer_user_agent.unwrap_or_default(),
                 }),
             }),

crates/router/src/types/api/payments.rs

@@ -43,7 +43,7 @@ impl CustomerAcceptanceExt for CustomerAcceptance {
     fn get_ip_address(&self) -> Option<String> {
         self.online
             .as_ref()
-            .map(|data| data.ip_address.peek().to_owned())
+            .and_then(|data| data.ip_address.as_ref().map(|ip| ip.peek().to_owned()))
     }
 
     fn get_user_agent(&self) -> Option<String> {