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fix: amm-1927 res headers based on allowed origins #55

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Merged
5Amogh merged 1 commit into from
Nov 20, 2025
Merged

fix: amm-1927 res headers based on allowed origins #55

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5 changes: 3 additions & 2 deletions src/main/java/com/iemr/common/bengen/config/CorsConfig.java
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Original file line number Diff line number Diff line change
Expand Up @@ -19,8 +19,9 @@ public void addCorsMappings(CorsRegistry registry) {
Arrays.stream(allowedOrigins.split(","))
.map(String::trim)
.toArray(String[]::new))
.allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
.allowedHeaders("*")
.allowedMethods("GET", "POST", "PUT", "PATCH", "DELETE", "OPTIONS")
.allowedHeaders("Authorization", "Content-Type", "Accept", "Jwttoken",
"serverAuthorization", "ServerAuthorization", "serverauthorization", "Serverauthorization")
.exposedHeaders("Authorization", "Jwttoken")
.allowCredentials(true)
.maxAge(3600);
Expand Down
67 changes: 55 additions & 12 deletions src/main/java/com/iemr/common/bengen/utils/JwtUserIdValidationFilter.java
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Expand Up @@ -37,23 +37,57 @@ public void doFilter(ServletRequest servletRequest, ServletResponse servletRespo
HttpServletResponse response = (HttpServletResponse) servletResponse;

String origin = request.getHeader("Origin");
if (origin != null && isOriginAllowed(origin)) {
response.setHeader("Access-Control-Allow-Origin", origin);
response.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, DELETE, OPTIONS");
response.setHeader("Access-Control-Allow-Headers", "Authorization, Content-Type, Accept, Jwttoken");
response.setHeader("Access-Control-Allow-Credentials", "true");
String method = request.getMethod();
String uri = request.getRequestURI();

logger.debug("Incoming Origin: {}", origin);
logger.debug("Request Method: {}", method);
logger.debug("Request URI: {}", uri);
logger.debug("Allowed Origins Configured: {}", allowedOrigins);

if ("OPTIONS".equalsIgnoreCase(method)) {
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@vishwab1 vishwab1 Nov 19, 2025

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please check here

if (origin == null) {
logger.warn("BLOCKED - OPTIONS request without Origin header | Method: {} | URI: {}", method, uri);
response.sendError(HttpServletResponse.SC_FORBIDDEN, "OPTIONS request requires Origin header");
return;
}
if (!isOriginAllowed(origin)) {
logger.warn("BLOCKED - Unauthorized Origin | Origin: {} | Method: {} | URI: {}", origin, method, uri);
response.sendError(HttpServletResponse.SC_FORBIDDEN, "Origin not allowed");
return;
}
} else {
logger.warn("Origin [{}] is NOT allowed. CORS headers NOT added.", origin);
}

if ("OPTIONS".equalsIgnoreCase(request.getMethod())) {
logger.info("OPTIONS request - skipping JWT validation");
response.setStatus(HttpServletResponse.SC_OK);
return;
// For non-OPTIONS requests, validate origin if present
if (origin != null && !isOriginAllowed(origin)) {
logger.warn("BLOCKED - Unauthorized Origin | Origin: {} | Method: {} | URI: {}", origin, method, uri);
response.sendError(HttpServletResponse.SC_FORBIDDEN, "Origin not allowed");
return;
}
}

// Determine request path/context for later checks
String path = request.getRequestURI();
String contextPath = request.getContextPath();

// Set CORS headers and handle OPTIONS request only if origin is valid and
// allowed
if (origin != null && isOriginAllowed(origin)) {
addCorsHeaders(response, origin);
logger.info("Origin Validated | Origin: {} | Method: {} | URI: {}", origin, method, uri);

if ("OPTIONS".equalsIgnoreCase(method)) {
// OPTIONS (preflight) - respond with full allowed methods
response.setStatus(HttpServletResponse.SC_OK);
return;
}
} else {
logger.warn("Origin [{}] is NOT allowed. CORS headers NOT added.", origin);

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@vishwab1 vishwab1 Nov 19, 2025

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please check

if ("OPTIONS".equalsIgnoreCase(method)) {
response.sendError(HttpServletResponse.SC_FORBIDDEN, "Origin not allowed for OPTIONS request");
return;
}
}
logger.info("JwtUserIdValidationFilter invoked for path: " + path);

// Log cookies for debugging
Expand Down Expand Up @@ -179,4 +213,13 @@ private void clearUserIdCookie(HttpServletResponse response) {
cookie.setMaxAge(0); // Invalidate the cookie
response.addCookie(cookie);
}

private void addCorsHeaders(HttpServletResponse response, String origin) {
response.setHeader("Access-Control-Allow-Origin", origin); // Never use wildcard
response.setHeader("Access-Control-Allow-Methods", "GET, POST, PUT, PATCH, DELETE, OPTIONS");
response.setHeader("Access-Control-Allow-Headers",
"Authorization, Content-Type, Accept, Jwttoken, serverAuthorization, ServerAuthorization, serverauthorization, Serverauthorization");
response.setHeader("Access-Control-Allow-Credentials", "true");
response.setHeader("Access-Control-Max-Age", "3600");
}
}
32 changes: 30 additions & 2 deletions src/main/java/com/iemr/common/bengen/utils/http/HTTPRequestInterceptor.java
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Original file line number Diff line number Diff line change
Expand Up @@ -21,9 +21,12 @@
*/
package com.iemr.common.bengen.utils.http;

import java.util.Arrays;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;
Expand All @@ -43,6 +46,9 @@ public class HTTPRequestInterceptor implements HandlerInterceptor

Logger logger = LoggerFactory.getLogger(this.getClass().getSimpleName());

@Value("${cors.allowed-origins}")
private String allowedOrigins;

@Autowired
public void setValidator(Validator validator)
{
Expand Down Expand Up @@ -112,7 +118,13 @@ public boolean preHandle(HttpServletRequest request, HttpServletResponse respons
response.getOutputStream().print(output.toString());
response.setContentType(MediaType.APPLICATION_JSON);
response.setContentLength(output.toString().length());
response.setHeader("Access-Control-Allow-Origin", "*");
String origin = request.getHeader("Origin");
if (origin != null && isOriginAllowed(origin)) {
response.setHeader("Access-Control-Allow-Origin", origin);
response.setHeader("Access-Control-Allow-Credentials", "true");
} else if (origin != null) {
logger.warn("CORS headers NOT added for error response | Unauthorized origin: {}", origin);
}
status = false;
}

Expand Down Expand Up @@ -151,7 +163,23 @@ public void postHandle(
public void afterCompletion(
HttpServletRequest request,
HttpServletResponse response,
Object object, Exception arg3) throws Exception{
Object object, Exception arg3) throws Exception {
logger.debug("In afterCompletion Request Completed");
}

private boolean isOriginAllowed(String origin) {
if (origin == null || allowedOrigins == null || allowedOrigins.trim().isEmpty()) {
return false;
}

return Arrays.stream(allowedOrigins.split(","))
.map(String::trim)
.anyMatch(pattern -> {
String regex = pattern
.replace(".", "\\.")
.replace("*", ".*")
.replace("http://localhost:.*", "http://localhost:\\d+");
return origin.matches(regex);
});
}
}
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