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platform_system_core
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platform_system_core/adb/bugreport.cpp

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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define TRACE_TAG ADB
#include "bugreport.h"
#include <string>
#include <vector>
#include <android-base/strings.h>
#include "sysdeps.h"
#include "adb_utils.h"
#include "file_sync_service.h"
static constexpr char BUGZ_BEGIN_PREFIX[] = "BEGIN:";
static constexpr char BUGZ_PROGRESS_PREFIX[] = "PROGRESS:";
static constexpr char BUGZ_PROGRESS_SEPARATOR[] = "/";
static constexpr char BUGZ_OK_PREFIX[] = "OK:";
static constexpr char BUGZ_FAIL_PREFIX[] = "FAIL:";
// Custom callback used to handle the output of zipped bugreports.
class BugreportStandardStreamsCallback : public StandardStreamsCallbackInterface {
public:
BugreportStandardStreamsCallback(const std::string& dest_dir, const std::string& dest_file,
bool show_progress, Bugreport* br)
: br_(br),
src_file_(),
dest_dir_(dest_dir),
dest_file_(dest_file),
line_message_(),
invalid_lines_(),
show_progress_(show_progress),
status_(0),
line_() {
SetLineMessage("generating");
}
void OnStdout(const char* buffer, int length) {
for (int i = 0; i < length; i++) {
char c = buffer[i];
if (c == '\n') {
ProcessLine(line_);
line_.clear();
} else {
line_.append(1, c);
}
}
}
void OnStderr(const char* buffer, int length) {
OnStream(nullptr, stderr, buffer, length);
}
int Done(int unused_) {
// Process remaining line, if any.
ProcessLine(line_);
// Warn about invalid lines, if any.
if (!invalid_lines_.empty()) {
fprintf(stderr,
"WARNING: bugreportz generated %zu line(s) with unknown commands, "
"device might not support zipped bugreports:\n",
invalid_lines_.size());
for (const auto& line : invalid_lines_) {
fprintf(stderr, "\t%s\n", line.c_str());
}
fprintf(stderr,
"If the zipped bugreport was not generated, try 'adb bugreport' instead.\n");
}
// Pull the generated bug report.
if (status_ == 0) {
if (src_file_.empty()) {
fprintf(stderr, "bugreportz did not return a '%s' or '%s' line\n", BUGZ_OK_PREFIX,
BUGZ_FAIL_PREFIX);
return -1;
}
std::string destination;
if (dest_dir_.empty()) {
destination = dest_file_;
} else {
destination = android::base::StringPrintf("%s%c%s", dest_dir_.c_str(),
OS_PATH_SEPARATOR, dest_file_.c_str());
}
std::vector<const char*> srcs{src_file_.c_str()};
SetLineMessage("pulling");
status_ =
br_->DoSyncPull(srcs, destination.c_str(), true, line_message_.c_str()) ? 0 : 1;
if (status_ != 0) {
fprintf(stderr,
"Bug report finished but could not be copied to '%s'.\n"
"Try to run 'adb pull %s <directory>'\n"
"to copy it to a directory that can be written.\n",
destination.c_str(), src_file_.c_str());
}
}
return status_;
}
private:
void SetLineMessage(const std::string& action) {
line_message_ = action + " " + adb_basename(dest_file_);
}
void SetSrcFile(const std::string path) {
src_file_ = path;
if (!dest_dir_.empty()) {
// Only uses device-provided name when user passed a directory.
dest_file_ = adb_basename(path);
SetLineMessage("generating");
}
}
void ProcessLine(const std::string& line) {
if (line.empty()) return;
if (android::base::StartsWith(line, BUGZ_BEGIN_PREFIX)) {
SetSrcFile(&line[strlen(BUGZ_BEGIN_PREFIX)]);
} else if (android::base::StartsWith(line, BUGZ_OK_PREFIX)) {
SetSrcFile(&line[strlen(BUGZ_OK_PREFIX)]);
} else if (android::base::StartsWith(line, BUGZ_FAIL_PREFIX)) {
const char* error_message = &line[strlen(BUGZ_FAIL_PREFIX)];
fprintf(stderr, "Device failed to take a zipped bugreport: %s\n", error_message);
status_ = -1;
} else if (show_progress_ && android::base::StartsWith(line, BUGZ_PROGRESS_PREFIX)) {
// progress_line should have the following format:
//
// BUGZ_PROGRESS_PREFIX:PROGRESS/TOTAL
//
size_t idx1 = line.rfind(BUGZ_PROGRESS_PREFIX) + strlen(BUGZ_PROGRESS_PREFIX);
size_t idx2 = line.rfind(BUGZ_PROGRESS_SEPARATOR);
int progress = std::stoi(line.substr(idx1, (idx2 - idx1)));
int total = std::stoi(line.substr(idx2 + 1));
br_->UpdateProgress(line_message_, progress, total);
} else {
invalid_lines_.push_back(line);
}
}
Bugreport* br_;
// Path of bugreport on device.
std::string src_file_;
// Bugreport destination on host, depending on argument passed on constructor:
// - if argument is a directory, dest_dir_ is set with it and dest_file_ will be the name
// of the bugreport reported by the device.
// - if argument is empty, dest_dir is set as the current directory and dest_file_ will be the
// name of the bugreport reported by the device.
// - otherwise, dest_dir_ is not set and dest_file_ is set with the value passed on constructor.
std::string dest_dir_, dest_file_;
// Message displayed on LinePrinter, it's updated every time the destination above change.
std::string line_message_;
// Lines sent by bugreportz that contain invalid commands; will be displayed at the end.
std::vector<std::string> invalid_lines_;
// Whether PROGRESS_LINES should be interpreted as progress.
bool show_progress_;
// Overall process of the operation, as returned by Done().
int status_;
// Temporary buffer containing the characters read since the last newline (\n).
std::string line_;
DISALLOW_COPY_AND_ASSIGN(BugreportStandardStreamsCallback);
};
int Bugreport::DoIt(TransportType transport_type, const char* serial, int argc, const char** argv) {
if (argc > 2) return usage("usage: adb bugreport [PATH]");
// Gets bugreportz version.
std::string bugz_stdout, bugz_stderr;
DefaultStandardStreamsCallback version_callback(&bugz_stdout, &bugz_stderr);
int status = SendShellCommand(transport_type, serial, "bugreportz -v", false, &version_callback);
std::string bugz_version = android::base::Trim(bugz_stderr);
std::string bugz_output = android::base::Trim(bugz_stdout);
if (status != 0 || bugz_version.empty()) {
D("'bugreportz' -v results: status=%d, stdout='%s', stderr='%s'", status,
bugz_output.c_str(), bugz_version.c_str());
if (argc == 1) {
// Device does not support bugreportz: if called as 'adb bugreport', just falls out to
// the flat-file version.
fprintf(stderr,
"Failed to get bugreportz version, which is only available on devices "
"running Android 7.0 or later.\nTrying a plain-text bug report instead.\n");
return SendShellCommand(transport_type, serial, "bugreport", false);
}
// But if user explicitly asked for a zipped bug report, fails instead (otherwise calling
// 'bugreport' would generate a lot of output the user might not be prepared to handle).
fprintf(stderr,
"Failed to get bugreportz version: 'bugreportz -v' returned '%s' (code %d).\n"
"If the device does not run Android 7.0 or above, try 'adb bugreport' instead.\n",
bugz_output.c_str(), status);
return status != 0 ? status : -1;
}
std::string dest_file, dest_dir;
if (argc == 1) {
// No args - use current directory
if (!getcwd(&dest_dir)) {
perror("adb: getcwd failed");
return 1;
}
} else {
// Check whether argument is a directory or file
if (directory_exists(argv[1])) {
dest_dir = argv[1];
} else {
dest_file = argv[1];
}
}
if (dest_file.empty()) {
// Uses a default value until device provides the proper name
dest_file = "bugreport.zip";
} else {
if (!android::base::EndsWithIgnoreCase(dest_file, ".zip")) {
dest_file += ".zip";
}
}
bool show_progress = true;
std::string bugz_command = "bugreportz -p";
if (bugz_version == "1.0") {
// 1.0 does not support progress notifications, so print a disclaimer
// message instead.
fprintf(stderr,
"Bugreport is in progress and it could take minutes to complete.\n"
"Please be patient and do not cancel or disconnect your device "
"until it completes.\n");
show_progress = false;
bugz_command = "bugreportz";
}
BugreportStandardStreamsCallback bugz_callback(dest_dir, dest_file, show_progress, this);
return SendShellCommand(transport_type, serial, bugz_command, false, &bugz_callback);
}
void Bugreport::UpdateProgress(const std::string& message, int progress, int total) {
int progress_percentage = (progress * 100 / total);
line_printer_.Print(
android::base::StringPrintf("[%3d%%] %s", progress_percentage, message.c_str()),
LinePrinter::INFO);
}
int Bugreport::SendShellCommand(TransportType transport_type, const char* serial,
const std::string& command, bool disable_shell_protocol,
StandardStreamsCallbackInterface* callback) {
return send_shell_command(transport_type, serial, command, disable_shell_protocol, callback);
}
bool Bugreport::DoSyncPull(const std::vector<const char*>& srcs, const char* dst, bool copy_attrs,
const char* name) {
return do_sync_pull(srcs, dst, copy_attrs, name);
}
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