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Fix: Codex image support - convert image_url to input_image format (#236)

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Cursor sends images as Chat Completions format:
  { type: "image_url", image_url: { url: "data:...", detail: "auto" } }

But Codex Responses API requires:
  { type: "input_image", image_url: "data:..." }

- openai-responses.js: bidirectional conversion image_url <-> input_image
- responsesApiHelper.js: input_image -> image_url in Responses->Chat path
- codex.js: safety net conversion in executor before sending to Codex API

Note: Cursor has a known bug where images bypass the Override OpenAI Base URL
and are sent directly to api.openai.com. This fix is effective for other clients
(curl, Codex CLI, Claude Code) that route through the proxy correctly.

Made-with: Cursor
This commit is contained in:
Rodrigo Rodrigues Costa
2026-03-05 00:31:50 -03:00
committed by GitHub
parent 7195fee2f6
commit 40a53fbd33
3 changed files with 33 additions and 3 deletions
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15
open-sse/executors/codex.js
View File

@@ -34,6 +34,21 @@ export class CodexExecutor extends BaseExecutor {
body.input = [{ type: "message", role: "user", content: [{ type: "input_text", text: "..." }] }];
}
// Normalize image content: image_url → input_image (Responses API format)
if (Array.isArray(body.input)) {
for (const item of body.input) {
if (Array.isArray(item.content)) {
item.content = item.content.map(c => {
if (c.type === "image_url") {
const url = typeof c.image_url === "string" ? c.image_url : c.image_url?.url;
return { type: "input_image", image_url: url, detail: c.image_url?.detail || "auto" };
}
return c;
});
}
}
}
// Ensure streaming is enabled (Codex API requires it)
body.stream = true;

6
open-sse/translator/helpers/responsesApiHelper.js
View File

@@ -56,11 +56,15 @@ export function convertResponsesApiFormat(body) {
pendingToolResults = [];
}
// Convert content: input_text → text, output_text → text
// Convert content: input_text → text, output_text → text, input_image → image_url
const content = Array.isArray(item.content)
? item.content.map(c => {
if (c.type === "input_text") return { type: "text", text: c.text };
if (c.type === "output_text") return { type: "text", text: c.text };
if (c.type === "input_image") {
const url = c.image_url || c.file_id || "";
return { type: "image_url", image_url: { url, detail: c.detail || "auto" } };
}
return c;
})
: item.content;

15
open-sse/translator/request/openai-responses.js
View File

@@ -48,11 +48,15 @@ export function openaiResponsesToOpenAIRequest(model, body, stream, credentials)
pendingToolResults = [];
}
// Convert content: input_text → text, output_text → text
// Convert content: input_text → text, output_text → text, input_image → image_url
const content = Array.isArray(item.content)
? item.content.map(c => {
if (c.type === "input_text") return { type: "text", text: c.text };
if (c.type === "output_text") return { type: "text", text: c.text };
if (c.type === "input_image") {
const url = c.image_url || c.file_id || "";
return { type: "image_url", image_url: { url, detail: c.detail || "auto" } };
}
return c;
})
: item.content;
@@ -186,7 +190,14 @@ export function openaiToOpenAIResponsesRequest(model, body, stream, credentials)
: Array.isArray(msg.content)
? msg.content.map(c => {
if (c.type === "text") return { type: contentType, text: c.text };
if (c.type === "image_url") return { type: "image_url", image_url: c.image_url };
// Convert Chat Completions image_url → Responses API input_image
// Responses API expects: { type: "input_image", image_url: "<url string>" }
// Chat Completions sends: { type: "image_url", image_url: { url: "...", detail: "..." } }
if (c.type === "image_url") {
const url = typeof c.image_url === "string" ? c.image_url : c.image_url?.url;
return { type: "input_image", image_url: url, detail: c.image_url?.detail || "auto" };
}
if (c.type === "input_image") return c;
// Serialize any unknown type (tool_use, tool_result, thinking, etc.) as text
const text = c.text || c.content || JSON.stringify(c);
return { type: contentType, text: typeof text === "string" ? text : JSON.stringify(text) };