/* ui-blob.c: show blob content * * Copyright (C) 2008 Lars Hjemli * Copyright (C) 2010 Jason A. Donenfeld <Jason@zx2c4.com> * * Licensed under GNU General Public License v2 * (see COPYING for full license text) */ #include "cgit.h" #include "html.h" #include "ui-shared.h" struct walk_tree_context { char *match_path; unsigned char *matched_sha1; int found_path; }; static int walk_tree(const unsigned char *sha1, const char *base, int baselen, const char *pathname, unsigned mode, int stage, void *cbdata) { struct walk_tree_context *walk_tree_ctx = cbdata; if (strncmp(base, walk_tree_ctx->match_path, baselen) || strcmp(walk_tree_ctx->match_path + baselen, pathname)) return READ_TREE_RECURSIVE; memmove(walk_tree_ctx->matched_sha1, sha1, 20); walk_tree_ctx->found_path = 1; return 0; } int cgit_print_file(char *path, const char *head) { unsigned char sha1[20]; enum object_type type; char *buf; unsigned long size; struct commit *commit; struct pathspec_item path_items = { .match = path, .len = strlen(path) }; struct pathspec paths = { .nr = 1, .items = &path_items }; struct walk_tree_context walk_tree_ctx = { .match_path = path, .matched_sha1 = sha1, .found_path = 0 }; if (get_sha1(head, sha1)) return -1; type = sha1_object_info(sha1, &size); if (type == OBJ_COMMIT && path) { commit = lookup_commit_reference(sha1); read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx); if (!walk_tree_ctx.found_path) return -1; type = sha1_object_info(sha1, &size); } if (type == OBJ_BAD) return -1; buf = read_sha1_file(sha1, &type, &size); if (!buf) return -1; buf[size] = '\0'; html_raw(buf, size); return 0; } void cgit_print_blob(const char *hex, char *path, const char *head) { unsigned char sha1[20]; enum object_type type; char *buf; unsigned long size; struct commit *commit; struct pathspec_item path_items = { .match = path, .len = strlen(path) }; struct pathspec paths = { .nr = 1, .items = &path_items }; struct walk_tree_context walk_tree_ctx = { .match_path = path, .matched_sha1 = sha1, }; if (hex) { if (get_sha1_hex(hex, sha1)) { cgit_print_error(fmt("Bad hex value: %s", hex)); return; } } else { if (get_sha1(head, sha1)) { cgit_print_error(fmt("Bad ref: %s", head)); return; } } type = sha1_object_info(sha1, &size); if ((!hex) && type == OBJ_COMMIT && path) { commit = lookup_commit_reference(sha1); read_tree_recursive(commit->tree, "", 0, 0, &paths, walk_tree, &walk_tree_ctx); type = sha1_object_info(sha1,&size); } if (type == OBJ_BAD) { cgit_print_error(fmt("Bad object name: %s", hex)); return; } buf = read_sha1_file(sha1, &type, &size); if (!buf) { cgit_print_error(fmt("Error reading object %s", hex)); return; } buf[size] = '\0'; ctx.page.mimetype = ctx.qry.mimetype; if (!ctx.page.mimetype) { if (buffer_is_binary(buf, size)) ctx.page.mimetype = "application/octet-stream"; else ctx.page.mimetype = "text/plain"; } ctx.page.filename = path; cgit_print_http_headers(&ctx); html_raw(buf, size); }