Differences From Artifact [09ff9671f0]:

• File src/http_transport.c — part of check-in [459d0cbbc7] at 2025-07-22 18:11:39 on branch xfer-login-card — Remove some dead code. Add some internal docs. Add a couple of const qualifiers to help me reason through the xfer payload buffer's lifetime. (user: stephan size: 13697)

To Artifact [7b6106657f]:

• File src/http_transport.c — part of check-in [439af9348b] at 2025-07-23 20:56:04 on branch xfer-login-card — Account for CGI-hosted fossil instances by sending the xfer login card as a URL argument. This is somewhat inelegant but works around their inability to read HTTP headers. This version is still more verbose than it needs to be, and requires more testing for compatibility with trunk fossil versions. (user: stephan size: 13696)

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  if( (pUrlData->flags & URL_SSH_EXE)!=0
   && !is_safe_fossil_command(pUrlData->fossil)
  ){
    fossil_fatal("the ssh:// URL is asking to run an unsafe command [%s] on "
                 "the server.", pUrlData->fossil);
  }
  if( (pUrlData->flags & URL_SSH_EXE)==0
   && (pUrlData->flags & URL_SSH_PATH)!=0 
  ){
    ssh_add_path_argument(&zCmd);
  }
  blob_append_escaped_arg(&zCmd, pUrlData->fossil, 1);
  blob_append(&zCmd, " test-http", 10);
  if( pUrlData->path && pUrlData->path[0] ){
    blob_append_escaped_arg(&zCmd, pUrlData->path, 1);

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  if( (pUrlData->flags & URL_SSH_EXE)!=0
   && !is_safe_fossil_command(pUrlData->fossil)
  ){
    fossil_fatal("the ssh:// URL is asking to run an unsafe command [%s] on "
                 "the server.", pUrlData->fossil);
  }
  if( (pUrlData->flags & URL_SSH_EXE)==0
   && (pUrlData->flags & URL_SSH_PATH)!=0
  ){
    ssh_add_path_argument(&zCmd);
  }
  blob_append_escaped_arg(&zCmd, pUrlData->fossil, 1);
  blob_append(&zCmd, " test-http", 10);
  if( pUrlData->path && pUrlData->path[0] ){
    blob_append_escaped_arg(&zCmd, pUrlData->path, 1);