brepo/ngx_http_apache_rewrite_module
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Fixed pass parameter on redirect

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This commit is contained in:
Alexey Berezhok
2026-06-26 01:03:37 +03:00
parent 2cb396b1d0
commit 7b16ebc72f
1 changed files with 48 additions and 7 deletions
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55
modules/mod_rewrite/ngx_http_apache_rewrite_engine.c
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@@ -479,12 +479,11 @@ ngx_rewrite_apply_rule(ngx_rewrite_rule_t *rule, ngx_rewrite_ctx_t *ctx, ngx_str
"mod_rewrite: rewrite \"%V\" -> \"%V\" (flags=0x%xd, code=%d)",
&ctx->uri, &newuri, rule->flags, rule->forced_responsecode);
/* Split out query string */
{
ngx_str_t new_args = r->args;
ngx_rewrite_splitout_queryargs(r, &newuri, rule->flags, &new_args);
r->args = new_args;
}
ngx_str_t new_args = r->args;
ngx_rewrite_splitout_queryargs(r, &newuri, rule->flags, &new_args);
r->args = new_args;
/* Check for absolute URI → redirect */
if (rule->flags & RULEFLAG_FORCEREDIRECT) {
@@ -539,7 +538,7 @@ ngx_rewrite_apply_rule(ngx_rewrite_rule_t *rule, ngx_rewrite_ctx_t *ctx, ngx_str
}
}
len = scheme.len + 3 + host.len + newuri.len + 3;
len = scheme.len + 3 + host.len + newuri.len + 3 + new_args.len + 2;
if (port) {
len += 6; /* :NNNNN */
}
@@ -568,6 +567,10 @@ ngx_rewrite_apply_rule(ngx_rewrite_rule_t *rule, ngx_rewrite_ctx_t *ctx, ngx_str
*p++ = '/';
}
p = ngx_cpymem(p, newuri.data, newuri.len);
if (new_args.len > 0) {
*p++ = '?';
p = ngx_cpymem(p, new_args.data, new_args.len);
}
newuri.data = start;
newuri.len = p - start;
}
@@ -587,8 +590,31 @@ ngx_rewrite_apply_rule(ngx_rewrite_rule_t *rule, ngx_rewrite_ctx_t *ctx, ngx_str
}
ctx->redirect_url = newuri;
/* Append old query args if present */
if (new_args.len > 0 && ctx->redirect_url.data != NULL && ctx->redirect_url.len > 0) {
u_char *tmp_data;
size_t combined_len = ctx->redirect_url.len + 1 + new_args.len;
tmp_data = ngx_pnalloc(r->pool, combined_len);
if (tmp_data) {
ngx_memcpy(tmp_data, ctx->redirect_url.data, ctx->redirect_url.len);
*tmp_data++ = '&';
ngx_memcpy(tmp_data, new_args.data, new_args.len);
ctx->redirect_url.data = tmp_data;
ctx->redirect_url.len = combined_len;
}
}
ctx->redirect_code = code;
/* Update URI to include appended args (for subsequent processing) */
ctx->uri = newuri;
if (ctx->redirect_url.len > 0 && ctx->redirect_url.data != NULL
&& ngx_strcmp(ctx->uri.data, ctx->redirect_url.data) != 0) {
/* redirect_url has more data (args appended), copy it */
ctx->uri.data = ctx->redirect_url.data;
ctx->uri.len = ctx->redirect_url.len;
}
return RULE_RC_MATCH;
}
@@ -628,6 +654,21 @@ ngx_rewrite_apply_rule(ngx_rewrite_rule_t *rule, ngx_rewrite_ctx_t *ctx, ngx_str
}
ctx->uri = newuri;
/* Append old query args to URI if present and redirect_url wasn't modified */
if (new_args.len > 0 && ctx->redirect_url.data == NULL
&& ctx->uri.data != NULL && ctx->uri.len > 0) {
u_char *tmp_data;
size_t combined_len = ctx->uri.len + 1 + new_args.len;
tmp_data = ngx_pnalloc(r->pool, combined_len);
if (tmp_data) {
ngx_memcpy(tmp_data, ctx->uri.data, ctx->uri.len);
*tmp_data++ = '&';
ngx_memcpy(tmp_data, new_args.data, new_args.len);
ctx->uri.data = tmp_data;
ctx->uri.len = combined_len;
}
}
ngx_str_null(&ctx->redirect_url);
ctx->redirect_code = 0;