Module http 

The installer’s only HTTP client: WinHTTP, whose TLS is the OS’s own Schannel. Blocking, so it runs on the worker thread, never the UI thread.

Re-exports

pub use http_error::HttpError;

Modules

http_error 🔒

request_handle 🔒

url_target 🔒

Constants

CHUNK_SIZE 🔒

Small enough that Cancel is noticed promptly.

MAX_BUFFERED_BYTES 🔒

What get holds in memory: far beyond any real manifest, which runs to kilobytes, and small enough that a server sending without end cannot exhaust the machine; that the documents are small is the server’s promise, not ours.

MAX_REDIRECTS 🔒

Enough for a host move followed by a path rewrite, and a loop ends in milliseconds rather than on the timeout.

TIMEOUT_CONNECT_MS 🔒

TIMEOUT_RECEIVE_MS 🔒

TIMEOUT_RESOLVE_MS 🔒

Without timeouts a dead server parks the worker forever, since Cancel is only noticed between chunks.

TIMEOUT_SEND_MS 🔒

USER_AGENT 🔒

The server’s access log records it, so a report can be traced to the build that sent it.

Functions

get

The whole body in memory, up to MAX_BUFFERED_BYTES: right for a manifest, wrong for a package zip.

get_streaming

Hands each chunk to sink as it arrives; sink returns false to abort. The bearer token is a credential and is never logged.

post_json

Posts JSON without a token, since what the installer sends carries no identity, and discards the response body.

read_body 🔒

read_response 🔒

redirect_location 🔒

The Location of a 3xx, whose body is never read: it belongs to a response the caller is not getting, and would otherwise land in a package file.

send 🔒

Follows redirects itself, since WinHTTP left to itself re-sends the bearer token to whatever origin a 3xx names (measured 2026-10-30).

Type Aliases

ProgressFn

(bytes_so_far, content_length); the length is None for a chunked response.